Patent ID: 12256597

MODE FOR CARRYING OUT THE INVENTION

A functional panel of one embodiment of the present invention includes a base material and a pair of pixels. The base material covers the pair of pixels and the base material has a light-transmitting property.

The pair of pixels includes one pixel and another pixel and the one pixel includes a light-emitting device and a first microlens. The light-emitting device emits light H1toward the base material; the first microlens is interposed between the base material and the light-emitting device; and the first microlens converges light. Note that the first microlens includes a first surface and a second surface; the second surface is closer to the light-emitting device than the first surface is; and the second surface has a smaller radius of curvature than the first surface.

The other pixel includes a photoelectric conversion device and a second microlens. The second microlens is interposed between the base material and the photoelectric conversion device and the second microlens converges external light incident from the base material side. The second microlens includes a third surface and a fourth surface; the third surface is closer to the photoelectric conversion device than the fourth surface is; and the fourth surface has a smaller radius of curvature than the third surface.

Thus, the direction of the light emitted from the light-emitting device can be changed in the one pixel. The incident angle of the light to the base material can be changed. The proportion of light traveling inside the base material in the light can be reduced. The light can be extracted efficiently. In the other pixel, external light can be efficiently received by the photoelectric conversion device. As a result, a novel functional panel that is highly convenient, useful, or reliable can be provided.

Embodiments are described in detail with reference to the drawings. Note that the present invention is not limited to the following description, and it will be readily appreciated by those skilled in the art that modes and details of the present invention can be modified in various ways without departing from the spirit and scope of the present invention. Thus, the present invention should not be construed as being limited to the description in the following embodiments. Note that in structures of the invention described below, the same portions or portions having similar functions are denoted by the same reference numerals in different drawings, and a description thereof is not repeated.

Embodiment 1

In this embodiment, structures of a functional panel of one embodiment of the present invention will be described with reference toFIG.1toFIG.3andFIG.27toFIG.30.

FIG.1is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.1Ais a cross-sectional view illustrating a structure of pixels in the functional panel of one embodiment of the present invention;FIG.1Bis a diagram illustrating part ofFIG.1A; andFIG.1Cis a schematic view illustrating light beams in the pixels.

FIG.2is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.2Ais a cross-sectional view illustrating a structure of pixels in the functional panel of one embodiment of the present invention;FIG.2Bis a diagram illustrating part ofFIG.2A; andFIG.2Cis a schematic view illustrating light beams in the pixels.

FIG.3is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.3Ais a cross-sectional view illustrating a structure of pixels in the functional panel of one embodiment of the present invention;FIG.3Bis a diagram illustrating part ofFIG.3A; andFIG.3Cis a schematic view illustrating light beams in the pixels.

FIG.27is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.27AtoFIG.27Care cross-sectional views illustrating modification examples of the functional panel of one embodiment of the present invention.

FIG.28is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.28AtoFIG.28Care cross-sectional views illustrating modification examples of the functional panel of one embodiment of the present invention.FIG.29is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.29AtoFIG.29Care cross-sectional views illustrating modification examples of the functional panel of one embodiment of the present invention.

FIG.30is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.30AtoFIG.30Care cross-sectional views illustrating modification examples of the functional panel of one embodiment of the present invention.

Note that in this specification, an integer variable of 1 or more is sometimes used in reference numerals. For example, (p) where p is an integer variable of 1 or more is sometimes used in part of a reference numeral that specifies any of p components at a maximum. As another example, (m, n) where m and n are each an integer variable of 1 or more is sometimes used in part of a reference numeral that specifies any of m×n components at a maximum.

<Structure Example 1 of Functional Panel700>

A functional panel700of one embodiment of the present invention includes a base material770and a pair of pixels703(i, j) (seeFIG.1A).

<<Structure Example 1 of Base Material770>>

The base material770covers the pair of pixels703(i, j) and has a light-transmitting property.

<<Structure Example 1 of Pair of Pixels703(i, j)>>

The pair of pixels703(i, j) includes a pixel702G(i, j) and a pixel702S(i, j).

<<Structure Example 1 of Pixel702G(i, j)>>

The pixel702G(i, j) includes a light-emitting device550G(i, j) and a microlens MLG1.

The light-emitting device550G(i, j) emits light H1toward the base material770.

The microlens MLG1is interposed between the base material770and the light-emitting device550G(i, j) and converges the light H1(seeFIG.1C).

The microlens MLG1includes a surface MLG1(1) and a surface MLG1(2), and the surface MLG1(2) is closer to the light-emitting device550G(i, j) than the surface MLG1(1) is. The surface MLG1(2) has a smaller radius of curvature than the surface MLG1(1) (seeFIG.1B).

Note that the surface MLG1(1) has a larger area than an area of the light-emitting device550G(i, j) where light is emitted.

<<Structure Example 1 of Pixel702S(i, j)>>

The pixel702S(i, j) includes a photoelectric conversion device PD(i, j) and a microlens MLS2(seeFIG.1A).

The microlens MLS2is interposed between the base material770and the photoelectric conversion device PD(i, j) and converges external light incident from the base material770side (seeFIG.1C).

The microlens MLS2includes a surface MLS2(1) and a surface MLS2(2), and the surface MLS2(1) is closer to the photoelectric conversion device PD(i, j) than the surface MLS2(2) is. The surface MLS2(2) has a smaller radius of curvature than the surface MLS2(1) (seeFIG.1B).

Note that the surface MLS2(1) has a larger area than an area of the photoelectric conversion device PD(i, j) where light is received.

Thus, the direction of the light H1emitted from the light-emitting device550G(i, j) can be changed in the pixel702G(i, j). The incident angle of the light H1to the base material770can be changed. The proportion of light traveling inside the base material770in the light H1can be reduced. The light H1can be extracted efficiently. In the pixel702S(i, j), external light can be efficiently received by the photoelectric conversion device PD(i, j). As a result, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 2 of Pixel702S(i, j)>>

The pixel702S(i, j) includes a microlens MLS1(seeFIG.2A). The microlens MLS1is interposed between the base material770and the microlens MLS2and converges external light (seeFIG.2C).

The microlens MLS1includes a surface MLS1(1) and a surface MLS1(2), and the surface MLS1(2) is closer to the photoelectric conversion device PD(i, j) than the surface MLS1(1) is (seeFIG.2B). The surface MLS1(2) has a smaller radius of curvature than the surface MLS1(1).

Note that the surface MLS1(1) has a larger area than an area of the photoelectric conversion device PD(i, j) where light is received.

Thus, in the pixel702S(i, j), external light can be guided to the second microlens MLS2through the third microlens MLS1. External light can be efficiently received by the photoelectric conversion device PD(i, j). As a result, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 2 of Pixel702G(i, j)>>

The pixel702G(i, j) includes a microlens MLG2, and the microlens MLG2is interposed between the microlens MLG1and the light-emitting device550G(i, j) (seeFIG.3A). The microlens MLG2converges the light H1.

The microlens MLG2includes a surface MLG2(1) and a surface MLG2(2), and the surface MLG2(1) is closer to the light-emitting device550G(i, j) than the surface MLG2(2) is (seeFIG.3C). The surface MLG2(2) has a smaller radius of curvature than the surface MLG2(1) (seeFIG.3B).

Note that the surface MLG2(1) has a larger area than an area of the light-emitting device550G(i, j) where light is emitted.

Thus, in the pixel702G(i, j), the light H1emitted from the light-emitting device550G(i, j) can be guided to the first microlens MLG1through the fourth microlens MLG2. The direction of the light H1can be changed. The incident angle of the light H1to the base material770can be changed. The proportion of light traveling inside the base material770in the light H1can be reduced. As a result, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<Structure Example 2 of Functional Panel700>

For another example, the functional panel700can employ a structure in which the pixel702G(i, j) includes the microlens MLG2and the pixel702S(i, j) includes the microlens MLS1(seeFIG.27A).

The functional panel700can employ a structure in which the pixel702G(i, j) includes the microlens MLG1and the microlens MLG2and the pixel702S(i, j) includes the microlens MLS1(seeFIG.27B).

The functional panel700can employ a structure in which the pixel702G(i, j) includes the microlens MLG2and the pixel702S(i, j) includes the microlens MLS1and the microlens MLS2(seeFIG.27C).

<Structure Example 3 of Functional Panel700>

For another example, the functional panel700can employ a structure in which the pixel702G(i, j) includes the microlens MLG1and the microlens MLG2and the pixel702S(i, j) includes the microlens MLS2(seeFIG.28A).

The functional panel700can employ a structure in which the pixel702G(i, j) includes the microlens MLG1and the microlens MLG2(seeFIG.28B).

The functional panel700can employ a structure in which the pixel702S(i, j) includes the microlens MLS1and the microlens MLS2(seeFIG.28C).

<Structure Example 4 of Functional Panel700>

For another example, the functional panel700can employ a structure in which the pixel702G(i, j) includes the microlens MLG1(seeFIG.29A).

The functional panel700can employ a structure in which the pixel702G(i, j) includes the microlens MLG1and the pixel702S(i, j) includes the microlens MLS1(seeFIG.29B).

The functional panel700can employ a structure in which the pixel702S(i, j) includes the microlens MLS1(seeFIG.29C).

<Structure Example 5 of Functional Panel700>

For another example, the functional panel700can employ a structure in which the pixel702G(i, j) includes the microlens MLG2(seeFIG.30A).

The functional panel700can employ a structure in which the pixel702G(i, j) includes the microlens MLG2and the pixel702S(i, j) includes the microlens MLS2(seeFIG.30B).

The functional panel700can employ a structure in which the pixel702S(i, j) includes the microlens MLS2(seeFIG.30C).

Note that this embodiment can be combined with any of the other embodiments in this specification as appropriate.

Embodiment 2

In this embodiment, structures of a functional panel of one embodiment of the present invention will be described with reference toFIG.4.

FIG.4is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.4Ais a top view illustrating the structure of the functional panel of one embodiment of the present invention andFIG.4Bis a diagram illustrating part ofFIG.4A.

FIG.5Ais a diagram illustrating part ofFIG.4A,FIG.5Bis a diagram illustrating part ofFIG.5A, andFIG.5Cis a diagram illustrating another part ofFIG.5A.

FIG.6is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.6is a diagram illustrating a structure of the pixel circuit.

FIG.7is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.7is a circuit diagram illustrating a structure of a pixel circuit in the functional panel of one embodiment of the present invention.

<Structure Example 1 of Functional Panel700>

The functional panel700of one embodiment of the present invention includes a pair of pixels703(i, j) (seeFIG.4A).

<<Structure Example 1 of Pixel703(i, j)>>

The pair of pixels703(i, j) includes the pixel702G(i, j)(seeFIG.4B). The pixel702G(i, j) includes a pixel circuit530G(i, j) and the light-emitting device550G(i, j), and the light-emitting device550G(i, j) is electrically connected to the pixel circuit530G(i, j) (seeFIG.5A).

<<Structure Example 1 of Pixel Circuit530G(i, j)>>

The pixel circuit530G(i, j) includes a switch SW21, a switch SW22, a transistor M21, a capacitor C21, and a node N21(seeFIG.6).

The transistor M21includes a gate electrode electrically connected to the node N21, a first electrode electrically connected to the light-emitting device550G(i, j), and a second electrode electrically connected to a conductive film ANO.

The switch SW1includes a first terminal electrically connected to the node N21and a second terminal electrically connected to a conductive film S1g(j), and has a function of controlling the conduction state or the non-conduction state on the basis of a potential of a conductive film G1(i).

The switch SW22includes a first terminal electrically connected to a conductive film S2g(j), and has a function of controlling the conduction state or the non-conduction state on the basis of a potential of a conductive film G2(i).

The capacitor C21includes a conductive film electrically connected to the node N21and a conductive film electrically connected to a second electrode of the switch SW22.

Thus, an image signal can be stored in the node N21. A potential of the node N21can be changed using the switch SW22. The intensity of light emitted from the light-emitting device550G(i, j) can be controlled with the potential of the node N21. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 1 of Light-Emitting Device550G(i, j)>>

For example, an organic electroluminescence element, an inorganic electroluminescence element, a light-emitting diode, a QDLED (Quantum Dot LED), or the like can be used as the light-emitting device550G(i, j).

<<Structure Example 2 of Pixel703(i, j)>>

The pixel703(i, j) includes the pixel circuit530S(i, j) and the photoelectric conversion device PD(i, j), and the photoelectric conversion device PD(i, j) is electrically connected to the pixel circuit530S(i, j).

<<Structure Example 1 of Pixel Circuit530S(i, j)>>

The pixel circuit530S(i, j) includes a switch SW31, a switch SW32, a switch SW33, a transistor M31, a capacitor C31, and a node FD (seeFIG.7).

The switch SW31includes a first terminal electrically connected to the photoelectric conversion device PD(i, j) and a second terminal electrically connected to the node FD, and has a function of controlling the conduction state or the non-conduction state on the basis of a potential of a conductive film TX(i).

The switch SW32includes a first terminal electrically connected to the node FD and a second terminal electrically connected to a conductive film VR, and has a function of controlling the conduction state or the non-conduction state on the basis of a potential of a conductive film RS(i).

The capacitor C31includes a conductive film electrically connected to the node FD and a conductive film electrically connected to a conductive film VCP.

The transistor M31includes a gate electrode electrically connected to the node FD and a first electrode electrically connected to a conductive film VPI.

The switch SW33includes a first terminal electrically connected to a second electrode of the transistor M31and a second terminal electrically connected to a conductive film WX(U), and has a function of controlling the conduction state or the non-conduction state on the basis of a potential of a conductive film SE(i).

Thus, an imaging signal generated by the photoelectric conversion device PD(i, j) can be transferred to the node FD using the switch SW31. The imaging signal generated by the photoelectric conversion device PD(i, j) can be stored in the node FD using the switch SW31. Electrical continuity between the pixel circuit530S(i, j) and the photoelectric conversion device PD(i, j) can be broken by the switch SW31. A correlated double sampling method can be used. Noise included in the imaging signal can be reduced. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 1 of Photoelectric Conversion Device PD(i, j)>>

For example, a heterojunction photoelectric conversion device, a bulk heterojunction photoelectric conversion device, or the like can be used as the photoelectric conversion device PD(i, j).

<<Structure Example 3 of Pixel703(i, j)>>

A plurality of pixels can be used in the pixel703(i, j)). For example, a plurality of pixels capable of displaying colors with different hues can be used. Note that a plurality of pixels can be referred to as subpixels. A set of subpixels can be rephrased as a pixel.

This enables additive mixture or subtractive mixture of colors displayed by the plurality of pixels. It is possible to display a color of a hue that an individual pixel cannot display.

Specifically, a pixel702B(i, j) displaying blue, the pixel702G(i, j) displaying green, and a pixel702R(i, j) displaying red can be used in the pixel703(i, j). The pixel702B(i, j), the pixel702G(i, j), and the pixel702R(i, j) can each be referred to as a subpixel (seeFIG.4B).

A pixel displaying white or the like can be used in addition to the above set in the pixel703(i, j), for example. A pixel displaying cyan, a pixel displaying magenta, and a pixel displaying yellow can be used in the pixel703(i, j).

A pixel emitting infrared rays can be used in addition to the above set in the pixel703(i, j), for example. Specifically, a pixel that emits light including light with a wavelength of greater than or equal to 650 nm and less than or equal to 1000 nm can be used in the pixel703(i, j).

Note that this embodiment can be combined with any of the other embodiments in this specification as appropriate.

Embodiment 3

In this embodiment, structures of a functional panel of one embodiment of the present invention will be described with reference toFIG.8toFIG.11.

FIG.8is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.8is across-sectional view taken along cutting lines X1-X2, X3-X4, X9-X10, and X11-X12inFIG.4Aand in a pixel.

FIG.9is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.9Ais a cross-sectional view of the pixel702G(i, j) shown inFIG.4B.FIG.9Bis a cross-sectional view illustrating part ofFIG.9A.

FIG.10is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.10Ais a cross-sectional view of the pixel702S(i, j) shown inFIG.4B.FIG.10Bis a cross-sectional view illustrating part ofFIG.10A.

FIG.11is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.11Ais a cross-sectional view taken along cutting lines X1-X2and X3-X4inFIG.4A, andFIG.11Bis a diagram illustrating part ofFIG.11A.

<Structure Example 1 of Functional Panel700>

The functional panel of one embodiment of the present invention includes a functional layer520(seeFIG.8).

<<Structure Example 1 of Functional Layer520>>

The functional layer520includes the pixel circuit530G(i, j) (seeFIG.8). The functional layer520includes, for example, the transistor M21used in the pixel circuit530G(i, j) (seeFIG.6andFIG.9A).

The functional layer520has an opening portion591G. The pixel circuit530G(i, j) is electrically connected to the light-emitting device550G(i, j) through the opening portion591G (seeFIG.8andFIG.9A).

<<Structure Example 2 of Functional Layer520>>

The functional layer520includes the pixel circuit530S(i, j) (seeFIG.8). The functional layer520includes a transistor used as the switch SW31in the pixel circuit530S(i, j) (seeFIG.8andFIG.10A).

The functional layer520has an opening portion591S, and the pixel circuit530S(i, j) is electrically connected to the photoelectric conversion device PD(i, j) through the opening portion591S (seeFIG.8andFIG.10A).

Thus, the pixel circuit530G(i, j) can be formed in the functional layer520. The pixel circuit530S(i, j) can be formed in the functional layer520. The semiconductor film used in the pixel circuit530S(i, j) can be formed in the step of forming a semiconductor film used in the pixel circuit530G(i, j), for example. The manufacturing process of the functional panel can be simplified. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 3 of Functional Layer520>>

The functional layer520includes a driver circuit GD (seeFIG.4AandFIG.8). The functional layer520includes, for example, a transistor MD used in the driver circuit GD (seeFIG.8andFIG.11A).

The functional layer520includes a driver circuit RD and a reading circuit RC (seeFIG.8).

Thus, the semiconductor film used in the driver circuit GD can be formed in the step of forming the semiconductor film used in the pixel circuit530G(i, j), for example. Semiconductor films used in the driver circuit RD and the reading circuit RC can be formed in the step of forming the semiconductor film used in the pixel circuit530G(i, j). The manufacturing process of the functional panel can be simplified. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example of Transistor>>

A bottom-gate transistor, a top-gate transistor, or the like can be used in the functional layer520. Specifically, a transistor can be used as a switch.

The transistor includes a semiconductor film508, a conductive film504, a conductive film512A, and a conductive film512B (seeFIG.9B).

The semiconductor film508includes a region508A electrically connected to the conductive film512A and a region508B electrically connected to the conductive film512B. The semiconductor film508includes a region508C between the region508A and the region508B.

The conductive film504includes a region overlapping with the region508C, and the conductive film504has a function of a gate electrode.

An insulating film506includes a region interposed between the semiconductor film508and the conductive film504. The insulating film506has a function of a gate insulating film.

The conductive film512A has one of a function of a source electrode and a function of a drain electrode, and the conductive film512B has the other of the function of the source electrode and the function of the drain electrode.

A conductive film524can be used for the transistor. The semiconductor film508is interposed between a region of the conductive film524and the conductive film504. The conductive film524has a function of a second gate electrode.

Note that the semiconductor film used in the transistor of the driver circuit can be formed in the step of forming the semiconductor film used in the transistor of the pixel circuit.

<<Structure Example 1 of Semiconductor Film508>>

A semiconductor containing a Group 14 element can be used for the semiconductor film508, for example. Specifically, a semiconductor containing silicon can be used for the semiconductor film508.

[Hydrogenated Amorphous Silicon]

For example, hydrogenated amorphous silicon can be used for the semiconductor film508. Alternatively, microcrystalline silicon or the like can be used for the semiconductor film508. Thus, a functional panel having less display unevenness than a functional panel using polysilicon for the semiconductor film508, for example, can be provided. The size of the functional panel can be easily increased.

[Polysilicon]

For example, polysilicon can be used for the semiconductor film508. In this case, the field-effect mobility of the transistor can be higher than that of a transistor using hydrogenated amorphous silicon for the semiconductor film508, for example. The driving capability can be higher than that of a transistor using hydrogenated amorphous silicon for the semiconductor film508, for example. The aperture ratio of the pixel can be higher than that in the case of using a transistor that uses hydrogenated amorphous silicon for the semiconductor film508, for example.

The reliability of the transistor can be higher than that of a transistor using hydrogenated amorphous silicon for the semiconductor film508, for example.

The temperature required for fabrication of the transistor can be lower than that required for a transistor using single crystal silicon, for example.

The semiconductor film used in the transistor of the driver circuit can be formed in the same step as the semiconductor film used in the transistor of the pixel circuit. The driver circuit can be formed over the same substrate where the pixel circuit is formed. The number of components included in an electronic device can be reduced.

[Single Crystal Silicon]

For example, single crystal silicon can be used for the semiconductor film508. In this case, a functional panel with higher resolution than a functional panel using hydrogenated amorphous silicon for the semiconductor film508, for example, can be provided. A functional panel having less display unevenness than a functional panel using polysilicon for the semiconductor film508, for example, can be provided. Smart glasses or a head-mounted display can be provided, for example.

<<Structure Example 2 of Semiconductor Film508>>

For example, a metal oxide can be used for the semiconductor film508. In this case, the pixel circuit can hold an image signal for a longer time than a pixel circuit utilizing a transistor using amorphous silicon for a semiconductor film. Specifically, a selection signal can be supplied at a frequency of lower than 30 Hz, preferably lower than 1 Hz, and further preferably less than once per minute with the suppressed occurrence of flickers. Consequently, fatigue accumulation in a user of a data processing device can be reduced. Moreover, power consumption for driving can be reduced.

The pixel circuit can hold an imaging signal for a longer time than a pixel circuit utilizing a transistor using amorphous silicon for a semiconductor film. Specifically, a second selection signal can be supplied at a frequency lower than 30 Hz, preferably lower than 1 Hz, and further preferably less than once per minute. Accordingly, an image can be taken by a global shutter method. An image of a moving object can be taken while distortion is inhibited.

A transistor using an oxide semiconductor can be used, for example. Specifically, an oxide semiconductor containing indium or an oxide semiconductor containing indium, gallium, and zinc can be used for the semiconductor film.

A transistor having a lower leakage current in an off state than a transistor using amorphous silicon for a semiconductor film can be used, for example. Specifically, a transistor using an oxide semiconductor for a semiconductor film can be used as a switch or the like. In that case, a potential of a floating node can be held for a longer time than in a circuit in which a transistor using amorphous silicon is used as a switch.

A 25-nm-thick film containing indium, gallium, and zinc can be used as the semiconductor film508, for example.

A conductive film in which a 10-nm-thick film containing tantalum and nitrogen and a 300-nm-thick film containing copper are stacked can be used as the conductive film504, for example. Note that the film containing tantalum and nitrogen is interposed between a region of the film containing copper and the insulating film506.

A stacked film in which a 400-nm-thick film containing silicon and nitrogen and a 200-nm-thick film containing silicon, oxygen, and nitrogen are stacked can be used as the insulating film506, for example. Note that the film containing silicon, oxygen, and nitrogen is interposed between a region of the film containing silicon and nitrogen and the semiconductor film508.

A conductive film in which a 50-nm-thick film containing tungsten, a 400-nm-thick film containing aluminum, and a 100-nm-thick film containing titanium are stacked in this order can be used as the conductive film512A or the conductive film512B, for example. Note that the film containing tungsten includes a region in contact with the semiconductor film508.

A manufacturing line for a bottom-gate transistor using amorphous silicon for a semiconductor can be easily remodeled into a manufacturing line for a bottom-gate transistor using an oxide semiconductor for a semiconductor, for example. Furthermore, a manufacturing line for a top-gate transistor using polysilicon for a semiconductor can be easily remodeled into a manufacturing line for a top-gate transistor using an oxide semiconductor for a semiconductor, for example. In either remodeling, an existing manufacturing line can be effectively utilized.

Accordingly, flickering of a display can be inhibited. Power consumption can be reduced. A moving image with quick movements can be smoothly displayed. A photograph and the like can be displayed with a wide range of grayscale. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 3 of Semiconductor Film508>>

For example, a compound semiconductor can be used for the semiconductor of the transistor. Specifically, a semiconductor containing gallium arsenide can be used.

For example, an organic semiconductor can be used for the semiconductor of the transistor. Specifically, an organic semiconductor containing any of polyacenes or graphene can be used for the semiconductor film.

<<Structure Example of Capacitor>>

A capacitor includes one conductive film, a different conductive film, and an insulating film. The insulating film includes a region interposed between the one conductive film and the different conductive film.

For example, a conductive film used as the source electrode or the drain electrode of the transistor, a conductive film used as the gate electrode, and an insulating film used as the gate insulating film can be used for the capacitor.

<<Structure Example 2 of Functional Layer520>>

The functional layer520includes an insulating film521, an insulating film518, an insulating film516, the insulating film506, an insulating film501C, and the like (seeFIG.9AandFIG.9B).

The insulating film521includes a region interposed between the pixel circuit530G(i, j) and the light-emitting device550G(i, j).

The insulating film518includes a region interposed between the insulating film521and the insulating film501C.

The insulating film516includes a region interposed between the insulating film518and the insulating film501C.

The insulating film506includes a region interposed between the insulating film516and the insulating film501C.

[Insulating Film521]

An insulating inorganic material, an insulating organic material, or an insulating composite material containing an inorganic material and an organic material, for example, can be used for the insulating film521.

Specifically, an inorganic oxide film, an inorganic nitride film, an inorganic oxynitride film, or the like, or a stacked-layer material in which a plurality of films selected from these films are stacked can be used as the insulating film521.

For example, a film including a silicon oxide film, a silicon nitride film, a silicon oxynitride film, an aluminum oxide film, or the like, or a film including a stacked-layer material in which a plurality of films selected from these films are stacked can be used as the insulating film521. Note that the silicon nitride film is a dense film and has an excellent function of inhibiting diffusion of impurities.

For example, for the insulating film521, polyester, polyolefin, polyamide, polyimide, polycarbonate, polysiloxane, an acrylic resin, or the like, or a stacked-layer material, a composite material, or the like of a plurality of resins selected from these resins can be used. Note that polyimide is excellent in thermal stability, insulating property, toughness, low dielectric constant, low coefficient of thermal expansion, chemical resistance, and other properties compared with other organic materials. Accordingly, in particular, polyimide can be suitably used for the insulating film521or the like.

The insulating film521may be formed using a photosensitive material. Specifically, a film formed using photosensitive polyimide, a photosensitive acrylic resin, or the like can be used as the insulating film521.

Thus, the insulating film521can eliminate a level difference due to various components overlapping with the insulating film521, for example.

[Insulating Film518]

The material that can be used for the insulating film521, for example, can be used for the insulating film518.

For example, a material having a function of inhibiting diffusion of oxygen, hydrogen, water, an alkali metal, an alkaline earth metal, and the like can be used for the insulating film518. Specifically, a nitride insulating film can be used as the insulating film518. For example, silicon nitride, silicon nitride oxide, aluminum nitride, aluminum nitride oxide, or the like can be used for the insulating film518. Thus, diffusion of impurities into the semiconductor film of the transistor can be inhibited.

[Insulating Film516]

The material that can be used for the insulating film521, for example, can be used for the insulating film516.

Specifically, a film formed by a fabrication method different from that of the insulating film518can be used as the insulating film516.

[Insulating Film506]

The material that can be used for the insulating film521, for example, can be used for the insulating film506.

Specifically, a film including a silicon oxide film, a silicon oxynitride film, a silicon nitride oxide film, a silicon nitride film, an aluminum oxide film, a hafnium oxide film, an yttrium oxide film, a zirconium oxide film, a gallium oxide film, a tantalum oxide film, a magnesium oxide film, a lanthanum oxide film, a cerium oxide film, or a neodymium oxide film can be used as the insulating film506.

[Insulating Film501D]

An insulating film501D includes a region interposed between the insulating film501C and the insulating film516.

The material that can be used for the insulating film506, for example, can be used for the insulating film501D.

[Insulating Film501C]

The material that can be used for the insulating film521, for example, can be used for the insulating film501C. Specifically, a material containing silicon and oxygen can be used for the insulating film501C. Thus, diffusion of impurities into the pixel circuit, the light-emitting element, the photoelectric conversion element, or the like can be inhibited.

<<Structure Example 3 of Functional Layer520>>

The functional layer520includes a conductive film, a wiring, and a terminal. A material having conductivity can be used for the wiring, an electrode, the terminal, the conductive film, and the like.

[Wiring and the Like]

For example, an inorganic conductive material, an organic conductive material, a metal, a conductive ceramic, or the like can be used for the wiring and the like.

Specifically, a metal element selected from aluminum, gold, platinum, silver, copper, chromium, tantalum, titanium, molybdenum, tungsten, nickel, iron, cobalt, palladium, and manganese, or the like can be used for the wiring and the like. Alternatively, an alloy containing the above-described metal element, or the like can be used for the wiring and the like. In particular, an alloy of copper and manganese is suitable for microfabrication using a wet etching method.

Specifically, a two-layer structure in which a titanium film is stacked over an aluminum film, a two-layer structure in which a titanium film is stacked over a titanium nitride film, a two-layer structure in which a tungsten film is stacked over a titanium nitride film, a two-layer structure in which a tungsten film is stacked over a tantalum nitride film or a tungsten nitride film, a three-layer structure of a titanium film, an aluminum film stacked over the titanium film, and a titanium film further formed thereover, or the like can be used for the wiring and the like.

Specifically, a conductive oxide such as indium oxide, indium tin oxide, indium zinc oxide, zinc oxide, or zinc oxide to which gallium is added can be used for the wiring and the like.

Specifically, a film containing graphene or graphite can be used for the wiring and the like.

For example, a film containing graphene oxide is formed and the film containing graphene oxide is reduced, so that a film containing graphene can be formed. As a reducing method, a method with application of heat, a method using a reducing agent, or the like can be given.

For example, a film including a metal nanowire can be used for the wiring and the like. Specifically, a nanowire containing silver can be used.

Specifically, a conductive polymer can be used for the wiring and the like.

Note that a terminal519B can be electrically connected to a flexible printed circuit FPC1using a conductive material, for example (seeFIG.8). Specifically, the terminal519B can be electrically connected to the flexible printed circuit FPC1using a conductive material CP.

<Structure Example 2 of Functional Panel700>

The functional panel700includes a base material510, the base material770, and a sealant705(seeFIG.9A). In addition, the functional panel700includes a structure body KB.

<<Base Material510and Base Material770>>

A material having a light-transmitting property can be used for the base material510or the base material770.

For example, a flexible material can be used for the base material510or the base material770. Thus, a flexible functional panel can be provided.

For example, a material with a thickness less than or equal to 0.7 mm and greater than or equal to 0.1 mm can be used. Specifically, a material polished to a thickness of approximately 0.1 mm can be used. Thus, the weight can be reduced.

A glass substrate of the 6th generation (1500 mm×1850 mm), the 7th generation (1870 mm×2200 mm), the 8th generation (2200 mm×2400 mm), the 9th generation (2400 mm×2800 mm), the 10th generation (2950 mm×3400 mm), or the like can be used as the base material510or the base material770. Thus, a large-sized display device can be fabricated.

For the base material510or the base material770, an organic material, an inorganic material, a composite material of an organic material and an inorganic material, or the like can be used.

For example, an inorganic material such as glass, ceramic, or a metal can be used. Specifically, non-alkali glass, soda-lime glass, potash glass, crystal glass, aluminosilicate glass, tempered glass, chemically tempered glass, quartz, sapphire, or the like can be used for the base material510or the base material770. Aluminosilicate glass, tempered glass, chemically tempered glass, sapphire, or the like can be suitably used for the base material510or the base material770that is provided on the side close to a user of the functional panel. Thus, the functional panel can be prevented from being broken or damaged by the use thereof.

Specifically, an inorganic oxide film, an inorganic nitride film, an inorganic oxynitride film, or the like can be used. For example, a silicon oxide film, a silicon nitride film, a silicon oxynitride film, an aluminum oxide film, or the like can be used. Stainless steel, aluminum, or the like can be used for the base material510or the base material770.

For example, a single crystal semiconductor substrate or a polycrystalline semiconductor substrate of silicon or silicon carbide, a compound semiconductor substrate of silicon germanium or the like, an SOI substrate, or the like can be used as the base material510or the base material770. Thus, a semiconductor element can be formed on the base material510or the base material770.

For example, an organic material such as a resin, a resin film, or plastic can be used for the base material510or the base material770. Specifically, a material containing polyester, polyolefin, polyamide (e.g., nylon or aramid), polyimide, polycarbonate, polyurethane, an acrylic resin, an epoxy resin, or a resin having a siloxane bond, such as silicone, can be used for the base material510or the base material770. For example, a resin film, a resin plate, a stacked-layer material, or the like containing any of these materials can be used. Thus, the weight can be reduced. The frequency of occurrence of breakage or the like due to dropping can be reduced, for example.

Specifically, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethersulfone (PES), a cycloolefin polymer (COP), a cycloolefin copolymer (COC), or the like can be used for the base material510or the base material770.

For example, a composite material formed by attaching a metal plate, a thin glass plate, or a film of an inorganic material or the like and a resin film or the like to each other can be used for the base material510or the base material770. For example, a composite material formed by dispersing a fibrous or particulate metal, glass, an inorganic material, or the like into a resin can be used for the base material510or the base material770. For example, a composite material formed by dispersing a fibrous or particulate resin, an organic material, or the like into an inorganic material can be used for the base material510or the base material770.

Furthermore, a single-layer material or a material in which a plurality of layers are stacked can be used for the base material510or the base material770. For example, a material in which insulating films and the like are stacked can be used. Specifically, a material in which one or a plurality of films selected from a silicon oxide layer, a silicon nitride layer, a silicon oxynitride layer, and the like are stacked can be used. Thus, diffusion of impurities contained in the base materials can be prevented, for example. Diffusion of impurities contained in glass or a resin can be prevented. Diffusion of impurities that pass through a resin can be prevented.

Furthermore, paper, wood, or the like can be used for the base material510or the base material770.

For example, a material having heat resistance high enough to withstand heat treatment in the fabricating process can be used for the base material510or the base material770. Specifically, a material having heat resistance to heat applied in the formation process of directly forming the transistor, the capacitor, or the like can be used for the base material510or the base material770.

For example, it is possible to employ a method in which an insulating film, a transistor, a capacitor, or the like is formed on a process substrate having heat resistance to heat applied in the fabricating process, and the formed insulating film, transistor, capacitor, or the like is transferred to the base material510or the base material770. Accordingly, an insulating film, a transistor, a capacitor, or the like can be formed on a flexible substrate, for example.

<Sealant705>>

The sealant705includes a region interposed between the functional layer520and the base material770and has a function of bonding the functional layer520and the base material770together (seeFIG.9A).

An inorganic material, an organic material, a composite material of an inorganic material and an organic material, or the like can be used for the sealant705.

For example, an organic material such as a thermally fusible resin or a curable resin can be used for the sealant705.

For example, an organic material such as a reactive curable adhesive, a photocurable adhesive, a thermosetting adhesive, and/or an anaerobic adhesive can be used for the sealant705.

Specifically, an adhesive containing an epoxy resin, an acrylic resin, a silicone resin, a phenol resin, a polyimide resin, an imide resin, a PVC (polyvinyl chloride) resin, a PVB (polyvinyl butyral) resin, an EVA (ethylene vinyl acetate) resin, or the like can be used for the sealant705.

<<Structure Body KB>>

The structure body KB includes a region interposed between the functional layer520and the base material770. The structure body KB has a function of providing a predetermined space between the functional layer520and the base material770.

Note that this embodiment can be combined with any of the other embodiments in this specification as appropriate.

Embodiment 4

In this embodiment, structures of a functional panel of one embodiment of the present invention will be described with reference toFIG.9toFIG.11.

<Structure Example 1 of Functional Panel700>

The functional panel700includes the light-emitting device550G(i, j) (seeFIG.9).

<<Structure Example 2 of Light-Emitting Device550G(i, j)>>

An electrode551G(i, j), an electrode552, and a layer553G(j) containing a light-emitting material can be used in the light-emitting device550G(i, j). The layer553G(j) containing a light-emitting material includes a region interposed between the electrode551G(i, j) and the electrode552.

[Structure Example 1 of Layer553G(j) Containing Light-Emitting Material]

A stacked-layer material can be used for the layer553G(j) containing a light-emitting material, for example.

For example, a material emitting blue light, a material emitting green light, a material emitting red light, a material emitting infrared rays, or a material emitting ultraviolet rays can be used for the layer553G(j) containing a light-emitting material.

[Structure Example 2 of Layer553G(j) Containing Light-Emitting Material]

A stacked-layer material stacked to emit white light can be used for the layer553G(j) containing a light-emitting material, for example.

Specifically, a plurality of materials emitting light with different hues can be used for the layer553G(j) containing a light-emitting material.

For example, a stacked-layer material in which a layer containing a light-emitting material containing a fluorescent material that emits blue light and a layer containing materials that are other than fluorescent materials and emit green light and red light are stacked can be used for the layer553G(j) containing a light-emitting material. A stacked-layer material in which a layer containing a light-emitting material containing a fluorescent material that emits blue light and a layer containing a material that is other than a fluorescent material and emits yellow light are stacked can be used for the layer553G(j) containing a light-emitting material.

Note that a coloring film CF(G) can be used to overlap with the layer553G(j) containing a light-emitting material, for example. Thus, light of a predetermined hue can be extracted from white light.

[Structure Example 3 of Layer553G(j) Containing Light-Emitting Material]

A stacked-layer material stacked to emit blue light or ultraviolet rays can be used for the layer553G(j) containing a light-emitting material, for example. A color conversion layer CC(G) can be used to overlap with the layer553G(j) containing a light-emitting material, for example.

[Structure Example 4 of Layer553G(j) Containing Light-Emitting Material]

The layer553G(j) containing a light-emitting material includes a light-emitting unit. The light-emitting unit includes one region where electrons injected from one side are recombined with holes injected from the other side. The light-emitting unit contains a light-emitting material, and the light-emitting material releases energy generated by recombination of electrons and holes as light. Note that a hole-transport layer and an electron-transport layer can be used in the light-emitting unit. The hole-transport layer is placed closer to the positive electrode than the electron-transport layer is, and has higher hole mobility than the electron-transport layer.

A plurality of light-emitting units and an intermediate layer can be used for the layer553G(j) containing a light-emitting material, for example. The intermediate layer includes a region interposed between two light-emitting units. The intermediate layer includes a charge-generation region, and the intermediate layer has functions of supplying holes to the light-emitting unit placed on the cathode side and supplying electrons to the light-emitting unit placed on the anode side. Note that a structure including a plurality of light-emitting units and an intermediate layer is referred to as a tandem light-emitting element in some cases.

Accordingly, the current efficiency of light emission can be increased. The density of current flowing through the light-emitting element at the same luminance can be reduced. The reliability of the light-emitting element can be increased.

For example, a light-emitting unit containing a material emitting light with one hue and a light-emitting unit containing a material emitting light with a different hue can be stacked and used for the layer553G(j) containing a light-emitting material. A light-emitting unit containing a material emitting light with one hue and a light-emitting unit containing a material emitting light with the same hue can be stacked and used for the layer553G(j) containing a light-emitting material. Specifically, two light-emitting units each containing a material emitting blue light can be stacked and used.

For the layer553G(j) containing a light-emitting material, a high molecular compound (e.g., an oligomer, a dendrimer, or a polymer), a middle molecular compound (a compound between a low molecular compound and a high molecular compound with a molecular weight greater than or equal to 400 and less than or equal to 4000), or the like can be used.

[Electrode551G(i, j) and Electrode552]

The material that can be used for the wiring or the like, for example, can be used for the electrode551G(i, j) or the electrode552. Specifically, a material having a visible-light-transmitting property can be used for the electrode551G(i, j) or the electrode552.

For example, a conductive oxide, a conductive oxide containing indium, indium oxide, indium tin oxide, indium zinc oxide, zinc oxide, zinc oxide to which gallium is added, or the like can be used. Alternatively, a metal film thin enough to transmit light can be used. Alternatively, a material having a visible-light-transmitting property can be used.

For example, a metal film that transmits part of light and reflects another part of the light can be used for the electrode551G(i, j) or the electrode552. The distance between the electrode551G(i, j) and the electrode552is adjusted using the layer553G(j) containing a light-emitting material, for example.

Thus, a microcavity structure can be provided in the light-emitting device550G(i, j). Light of a predetermined wavelength can be extracted more efficiently than other light. Light with a narrow half width of a spectrum can be extracted. Light of a bright color can be extracted.

A film that efficiently reflects light, for example, can be used for the electrode551G(i, j) or the electrode552. Specifically, a material containing silver, palladium, and the like or a material containing silver, copper, and the like can be used for the metal film.

The electrode551G(i, j) is electrically connected to the pixel circuit530G(i, j) through the opening portion591G (seeFIG.10A). For example, the electrode551G(i, j) overlaps with the opening portion formed in the insulating film528, and the insulating film528is at the periphery30of the electrode551G(i, j).

Thus, a short circuit between the electrode551G(i, j) and the electrode552can be prevented.

<<Structure Example 2 of Photoelectric Conversion Device PD(i, j)>>

The photoelectric conversion device PD(i, j) includes an electrode551S(i, j), the electrode552, and a layer553S(j) containing a photoelectric conversion material (seeFIG.10A).

For example, a heterojunction photoelectric conversion device, a bulk heterojunction photoelectric conversion device, or the like can be used as the photoelectric conversion device PD(i, j).

[Structure Example 1 of Layer553S(j) Containing Photoelectric Conversion Material]

For example, a stacked-layer film in which a p-type semiconductor film and an n-type semiconductor film are stacked in contact with each other can be used as the layer553S(j) containing a photoelectric conversion material. Note that the photoelectric conversion device PD(i, j) in which a stacked-layer film with such a structure is used as the layer553S(j) containing a photoelectric conversion material can be referred to as a PN photodiode.

For example, a stacked-layer film in which a p-type semiconductor film, an i-type semiconductor film, and an n-type semiconductor film are stacked such that the i-type semiconductor film is interposed between the p-type semiconductor film and the n-type semiconductor film can be used as the layer553S(j) containing a photoelectric conversion material. Note that the photoelectric conversion device PD(i, j) in which a stacked-layer film with such a structure is used as the layer553S(j) containing a photoelectric conversion material can be referred to as a PIN photodiode.

For example, a stacked-layer film in which a p+-type semiconductor film, a p-type semiconductor film, a p-type semiconductor film, and an n-type semiconductor film are stacked such that the p-type semiconductor film is interposed between the p+-type semiconductor film and the n-type semiconductor film and the p-type semiconductor film is interposed between the p-type semiconductor film and the n-type semiconductor film can be used as the layer553S(U) containing a photoelectric conversion material. Note that the photoelectric conversion device PD(i, j) in which a stacked-layer film with such a structure is used as the layer553S(j) containing a photoelectric conversion material can be referred to as an avalanche photodiode.

[Structure Example 2 of Layer553S(j) Containing Photoelectric Conversion Material]

For example, a semiconductor containing a Group 14 element can be used for the layer553S(j) containing a photoelectric conversion material. Specifically, a semiconductor containing silicon can be used for the layer553S(j) containing a photoelectric conversion material. For example, hydrogenated amorphous silicon, microcrystalline silicon, polysilicon, single crystal silicon, or the like can be used for the layer553S(j) containing a photoelectric conversion material.

For example, an organic semiconductor can be used for the layer553S(j) containing a photoelectric conversion material. Specifically, part of the layer used as the layer553G(j) containing a light-emitting material can be used as part of the layer553S(j) containing a photoelectric conversion material.

Specifically, a hole-transport layer and an electron-transport layer that are used in the layer553G(j) containing a light-emitting material can be used in the layer553S(j) containing a photoelectric conversion material. This can simplify the manufacturing process.

For example, an electron-accepting organic semiconductor material such as fullerene (e.g., C60or C70) or the derivative thereof can be used for the n-type semiconductor film.

For example, an electron-donating organic semiconductor material such as copper(II) phthalocyanine (CuPc) or tetraphenyldibenzoperiflanthene (DBP) can be used for the p-type semiconductor film.

For example, a film obtained by co-evaporation of an electron-accepting semiconductor material and an electron-donating semiconductor material can be used as the i-type semiconductor film.

<Structure Example 2 of Functional Panel700>

The functional panel700includes the insulating film528and an insulating film573(seeFIG.9A).

<<Insulating Film528>>

The insulating film528includes a region interposed between the functional layer520and the base material770, and the insulating film528has an opening portion in a region overlapping with the light-emitting device550G(i, j) (seeFIG.9A).

The material that can be used for the insulating film521, for example, can be used for the insulating film528. Specifically, a silicon oxide film, a film containing an acrylic resin, a film containing polyimide, or the like can be used as the insulating film528.

<<Insulating Film573>>

The light-emitting device550G(i, j) is interposed between a region of the insulating film573and the functional layer520(seeFIG.9A).

For example, a single film or a stacked film in which a plurality of films are stacked can be used as the insulating film573. Specifically, a stacked film including an insulating film573A, which can be formed by a method that hardly damages the light-emitting device550G(i, j), and a dense insulating film573B with a few defects, can be used as the insulating film573. Thus, diffusion of impurities into the light-emitting device550G(i, j) can be inhibited. The reliability of the light-emitting device550G(i, j) can be increased.

<Structure Example 3 of Functional Panel700>

The functional panel700includes a functional layer720(seeFIG.9A).

<<Functional Layer720>>

The functional layer720includes a light-blocking film BM, the coloring film CF(G), a color conversion layer CC(G), and an insulating film771.

<<Light-Blocking Film BM>>

The light-blocking film BM has an opening portion in a region overlapping with the pixel702G(i, j). The light-blocking film BM has an opening portion in a region overlapping with the pixel702S(i, j).

A material of a dark color can be used for the light-blocking film BM, for example. Thus, the display contrast can be increased.

<<Coloring Film CF(G)>>

The coloring film CF(G) includes a region interposed between the base material770and the light-emitting device550G(i, j). A material that selectively transmits light of a predetermined color, for example, can be used for the coloring film CF(G). Specifically, a material that transmits red light, green light, or blue light can be used for the coloring film CF(G).

<<Structure Example of Insulating Film771>>

The insulating film771includes a region interposed between the base material770and the light-emitting device550G(i, j).

The insulating film771includes a region interposed between the base material770and a microlens ML.

The color conversion layer CC(G), the light-blocking layer BM, or the coloring film CF(G) is interposed between a region of the insulating film771and the base material770. Thus, unevenness due to the thickness of the color conversion layer CC(G), the light-blocking layer BM, or the coloring film CF(G) can be reduced.

<<Color Conversion Layer CC(G)>>

The color conversion layer CC(G) includes a region interposed between the base material770and the light-emitting device550G(i, j).

For example, a material that emits light with a wavelength longer than a wavelength of incident light can be used for the color conversion layer CC(G). For example, a material that absorbs blue light or ultraviolet rays, converts it into green light, and emits the green light, a material that absorbs blue light or ultraviolet rays, converts it into red light, and emits the red light, or a material that absorbs ultraviolet rays, converts it into blue light, and emits the blue light can be used for the color conversion layer. Specifically, a quantum dot with a diameter of several nanometers can be used for the color conversion layer. Thus, light having a spectrum with a narrow half width can be emitted. Light with high saturation can be emitted.

<Structure Example 4 of Functional Panel700>

The functional panel700includes a light-blocking film KBM (seeFIG.9A).

<<Light-Blocking Film KBM>>

The light-blocking film KBM has an opening portion in a region overlapping with the 30 pixel702S(i, j). Moreover, the light-blocking film KBM includes a region interposed between the functional layer520and the base material770, and has a function of providing a predetermined space between the functional layer520and the base material770. A material of a dark color can be used for the light-blocking film KBM, for example. Thus, stray light that would enter the pixel702S(i, j) can be reduced.

<Structure Example 4 of Functional Panel700>

The functional panel700includes a functional film770P or the like (seeFIG.9A).

<<Functional Film770P and the Like>>

The functional film770P includes a region overlapping with the light-emitting device550G(i, j).

An anti-reflection film, a polarizing film, a retardation film, a light diffusion film, a condensing film, or the like can be used as the functional film770P, for example.

For example, an anti-reflection film with a thickness less than or equal to 1 μm can be used as the functional film770P. Specifically, a stacked film in which three or more layers, preferably five or more layers, and further preferably 15 or more layers of dielectrics are stacked can be used as the functional film770P. This allows the reflectance to be as low as 0.5% or less, preferably 0.08% or less.

For example, a circularly polarizing film can be used as the functional film770P.

Furthermore, an antistatic film inhibiting the attachment of a dust, a water repellent film inhibiting the attachment of a stain, an oil repellent film inhibiting the attachment of a stain, a non-glare film (anti-glare film), a hard coat film inhibiting generation of a scratch in use, a self-healing film that self-heals from generated scratches, or the like can be used as the functional film770P.

Note that this embodiment can be combined with any of the other embodiments in this specification as appropriate.

Embodiment 5

In this embodiment, structures of the functional panel of one embodiment of the present invention will be described with reference toFIG.12toFIG.14.

FIG.12is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.

FIG.13shows circuit diagrams illustrating a structure of the functional panel of one embodiment of the present invention.FIG.13Ais a circuit diagram illustrating part of an amplifier circuit that can be used in the functional panel of one embodiment of the present invention, andFIG.13Bis a circuit diagram illustrating part of a sampling circuit that can be used in the functional panel of one embodiment of the present invention.

FIG.14is a diagram illustrating an operation of the functional panel of one embodiment of the present invention.

<Structure Example 1 of Functional Panel700>

The functional panel700described in this embodiment includes a region231(seeFIG.12).

<<Structure Example 1 of Region231>>

The region231includes a group of pixels703(i,1) to703(i, n) and a different group of pixels703(1, j) to703(m, j). The region231also includes the conductive film G1(i), the conductive film TX(i), the conductive film S1g(j), and the conductive film WX(j).

The group of pixels703(i,1) to703(i, n) is arranged in the row direction (the direction indicated by an arrow R1in the drawing), and the group of pixels703(i,1) to703(i, n) includes the pixel703(i, j).

The group of pixels703(i,1) to703(i, n) is electrically connected to the conductive film G1(i), and the group of pixels703(i,1) to703(i, n) is electrically connected to the conductive film TX(i).

The different group of pixels703(1, j) to703(m, j) is arranged in the column direction intersecting the row direction (the direction indicated by an arrow C1in the drawing), and the different group of pixels703(l, j) to703(m, j) includes the pixel703(i, j).

The different group of pixels703(1, j) to703(m, j) is electrically connected to the conductive film S1g(j), and the different group of pixels703(1, j) to703(m, j) is electrically connected to the conductive film WX(U).

Thus, imaging data can be obtained from a plurality of pixels. In addition, image data can be supplied to a plurality of pixels. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 2 of Region231>>

The region231includes 600 or more pixels per inch. Note that the pixels include the pixel702G(i, j).

<<Structure Example 3 of Region231>>

The region231includes a plurality of pixels in a matrix. For example, the region231includes 7600 or more pixels in the row direction and the region231includes 4300 or more pixels in the column direction. Specifically, 7680 pixels are provided in the row direction and 4320 pixels are provided in the column direction.

Thus, a high-resolution image can be displayed. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 4 of Region231>>

The region231has a diagonal greater than or equal to 114 cm and less than or equal to 200 cm.

Thus, a realistic image can be displayed. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

Although not shown, the region231includes a conductive film VCOM2and the conductive film ANO.

<Structure Example 2 of Functional Panel700>

The functional panel described in this embodiment includes the driver circuit GD (seeFIG.12).

<<Structure Example 1 of Driver Circuit GD>>

The driver circuit GD supplies a first selection signal.

<<Structure Example 1 of Pixel Circuit530G(i, j)>>

The pixel circuit530G(i, j) is supplied with the first selection signal, and the pixel circuit530G(i, j) obtains an image signal on the basis of the first selection signal. For example, the first selection signal can be supplied using the conductive film G1(i) (seeFIG.5B). The image signal can be supplied using the conductive film S1g(U). Note that the operation of supplying the first selection signal and making the pixel circuit530G(i, j) obtain the image signal can be referred to as “writing” (seeFIG.14).

The light-emitting device550G(i, j) emits light in response to the image signal (seeFIG.5A).

Note that the light-emitting device550G(i, j) includes the electrode551G(i, j) electrically connected to the pixel circuit530G(i, j), and the electrode552electrically connected to the conductive film VCOM2(seeFIG.6andFIG.9A).

<Structure Example 3 of Functional Panel700>

The functional panel of one embodiment of the present invention includes a reading circuit RC(j), a conductive film VLEN, a conductive film VIV, and a conductive film CL (seeFIG.12,FIG.7,FIG.13A, andFIG.13B).

<<Structure Example of Reading Circuit RC(j)>>

The reading circuit RC(j) includes an amplifier circuit and a sampling circuit SC(j) (seeFIG.12).

<<Structure Example of Amplifier Circuit>>

The amplifier circuit includes a transistor M32(seeFIG.13A).

The transistor M32includes a gate electrode electrically connected to the conductive film VLEN, a first electrode electrically connected to the conductive film WX(j), and a second electrode electrically connected to the conductive film VIV.

Note that the conductive film WX(j) connects the transistor M31and the transistor M32when the switch SW33is in a conduction state (seeFIG.7andFIG.13A). Thus, a source follower circuit can be configured with the transistor M31and the transistor M32. The potential of the conductive film WX(j) can be changed on the basis of the potential of the node FD.

<<Structure Example of Sampling Circuit SC(j)>>

The sampling circuit SC(j) includes a first terminal IN(j), a second terminal, and a third35terminal OUT(j) (seeFIG.13B).

The first terminal is electrically connected to the conductive film WX(j), the second terminal is electrically connected to the conductive film CL, and the third terminal OUT(j) has a function of supplying a signal that changes on the basis of the potential of the first terminal IN(j).

Accordingly, an imaging signal can be obtained from the pixel circuit530S(i, j). A correlated double sampling method can be employed, for example. The sampling circuit SC(j) can be provided for each conductive film WX(j). A differential signal of the pixel circuit530S(i, j) can be obtained by the corresponding conductive film WX(j). The operating frequency of the sampling circuit SC(j) can be low. Noise can be reduced. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<Structure Example 4 of Functional Panel700>

The functional panel700includes the driver circuit RD (seeFIG.12).

<<Structure Example 1 of Driver Circuit RD>>

The driver circuit RD supplies a second selection signal and a third selection signal.

<<Structure Example 1 of Pixel Circuit530S(i, j)>>

The pixel circuit530S(i, j) is supplied with the second selection signal and the third selection signal in a period during which the first selection signal is not supplied (seeFIG.14). In addition, the pixel circuit530S(i, j) obtains an imaging signal on the basis of the second selection signal, and supplies the imaging signal on the basis of the third selection signal. For example, the second selection signal can be supplied using the conductive film TX(i), and the third selection signal can be supplied using the conductive film SE(i) (seeFIG.7).

Note that the operation of supplying the second selection signal and making the pixel circuit530S(i, j) obtain an imaging signal can be referred to as “imaging” (seeFIG.14). The operation of reading an imaging signal from the pixel circuit530S(i, j) can be referred to as “reading”. The operation of supplying a predetermined voltage to the photoelectric conversion device PD(i, j) can be referred to as “initialization”; the operation of exposing the initialized photoelectric conversion device PD(i, j) to light in a predetermined period, “light exposure”; and the operation of reflecting a voltage that has been changed along with the light exposure on the pixel circuit530S(i, j), “transfer”. Moreover, in the figure, SRS corresponds to the operation of supplying a reference signal used in a correlated double sampling method, and “output” corresponds to the operation of supplying an imaging signal.

For example, image data of one frame can be written in 16.7 msec. Specifically, the operation can be performed at a frame rate of 60 Hz. Note that an image signal can be written to the pixel circuit530G(i, j) in 15.2 psec.

For example, image data of one frame can be held in a period corresponding to 16 frames. Imaging data of one frame can be imaged and read in a period corresponding to 16 frames.

Specifically, it is possible to perform the initialization in 15 μsec, the light exposure in a period from 1 msec to 5 msec, and the transfer in 150 μsec. Moreover, the reading can be performed in 250 msec.

The photoelectric conversion device PD(i, j) includes the electrode551S(i, j) electrically connected to the pixel circuit530S(i, j), and the electrode552electrically connected to a conductive film VPD (seeFIG.7andFIG.10A). The electrode552used in the light-emitting device550G(i, j) can be used in the photoelectric conversion device PD(i, j). Thus, the structure and the manufacturing process of the functional panel can be simplified.

Accordingly, imaging can be performed in a period during which the first selection signal is not supplied. Noise in imaging can be inhibited. An imaging signal can be read in the period during which the first selection signal is not supplied. Noise in reading can be inhibited. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 3 of Pixel703(i, j)>>

The pixel703(i, j) is supplied with the second selection signal in a period during which the pixel703(i, j) holds one image signal. For example, in a period during which the pixel circuit530G(i, j) holds one image signal, the pixel703(i, j) can emit light using the light-emitting device550G(i, j) on the basis of the image signal (seeFIG.14). The pixel circuit530S(i, j) is supplied with the second selection signal after the pixel circuit530G(i, j) obtains one image signal on the basis of the first selection signal by the time when the pixel circuit530G(i, j) is supplied with the first selection signal again.

Accordingly, the intensity of light emitted from the light-emitting device550G(i, j) can be controlled using the image signal. Light having a controlled intensity can be emitted to an object. The object can be imaged using the photoelectric conversion device PD(i, j). The object can be imaged using the photoelectric conversion device PD(i, j) while the intensity of emitted light is controlled. The influence of a change from one image signal to another image signal held in the pixel circuit530G(i, j) on an imaging signal can be eliminated. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<Structure Example 5 of Functional Panel700>

The functional panel700of one embodiment of the present invention includes a multiplexer MUX, an amplifier circuit AMP, and an analog-digital converter circuit ADC (seeFIG.12).

<<Structure Example of Multiplexer MUX>>

The multiplexer MUX has a function of obtaining an imaging signal from one selected from the plurality of sampling circuits SC(j) and supplying the imaging signal to the amplifier circuit AMP, for example.

For example, the multiplexer MUX is electrically connected to the third terminal OUT(j) of the sampling circuit SC (seeFIG.13B). Specifically, the multiplexer MUX, which is electrically connected to a sampling circuit SC(1) to a sampling circuit SC(9), can obtain an imaging signal from a predetermined sampling circuit and supply the imaging signal to the amplifier circuit AMP.

Thus, imaging data can be obtained by selecting a predetermined pixel from a plurality of pixels arranged in the row direction. The number of imaging signals obtained at the same time can be limited to a predetermined number. It is possible to use the analog-digital converter circuit ADC in which the number of input channels is smaller than the number of pixels arranged in the row direction. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example of Amplifier Circuit AMP>>

The amplifier circuit AMP can amplify the imaging signal and supply the amplified signal to the analog-digital converter circuit ADC.

Note that the functional layer520includes the multiplexer MUX and the amplifier circuit AMP.

Accordingly, for example, in the step of forming the semiconductor film used in the pixel circuit530G(i, j), semiconductor films used in the multiplexer MUX and the amplifier circuit AMP can be formed. The manufacturing process of the functional panel can be simplified. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example of Analog-Digital Converter Circuit ADC>>

The analog-digital converter circuit ADC has a function of converting an analog imaging signal to a digital signal.

Note that this embodiment can be combined with any of the other embodiments in this specification as appropriate.

Embodiment 6

In this embodiment, a structure of a display device of one embodiment of the present invention will be described with reference toFIG.15.

FIG.15is a diagram illustrating the structure of the display device of one embodiment of the present invention.FIG.15Ais a block diagram of the display device of one embodiment of the present invention, andFIG.15BtoFIG.15Dare projection views each illustrating the appearance of the display device of one embodiment of the present invention.

<Structure Example of Display Device>

The display device described in this embodiment includes the functional panel700and a control portion238(seeFIG.15A).

<<Structure Example 1 of Control Portion238>>

The control portion238is supplied with image data VI and control data CI. For example, a clock signal, a timing signal, or the like can be used as the control data CI.

The control portion238generates data on the basis of the image data VI and generates a control signal on the basis of the control data CI. Furthermore, the control portion238supplies the data and the control signal.

The data includes a grayscale of 8 bits or more, preferably 12 bits or more, for example. In addition, a clock signal, a start pulse, or the like of a shift register used for a driver circuit can be used as the control signal, for example.

<<Structure Example 2 of Control Portion238>>

For example, a decompression circuit234and an image processing circuit235can be used in the control portion238.

<<Decompression Circuit234>>

The decompression circuit234has a function of decompressing the image data VI supplied in a compressed state. The decompression circuit234includes a memory portion. The memory portion has a function of storing decompressed image data, for example.

<<Image Processing Circuit235>>

The image processing circuit235includes a memory region, for example. The memory region has a function of storing data included in the image data VI, for example.

The image processing circuit235has a function of generating the data by correcting the image data VI on the basis of a predetermined characteristic curve and a function of supplying the data, for example.

<<Structure Example 1 of Functional Panel>>

The functional panel700is supplied with the data and the control signal. For example, the functional panel700described in any one of Embodiment 1 to Embodiment 5 can be used.

<<Structure Example 5 of Pixel703(i, j)>>

The pixel703(i, j) performs display on the basis of the data.

Thus, the image data can be displayed using the display element. Thus, a novel display device that is highly convenient or reliable can be provided. For example, an information terminal (seeFIG.15B), a video monitor (seeFIG.15C), a laptop computer (seeFIG.15D), or the like can be provided.

<<Structure Example 2 of Functional Panel>>

The functional panel700includes a driver circuit and a control circuit, for example (seeFIG.15A).

<<Driver Circuit>>

The driver circuit operates on the basis of the control signal. Using the control signal enables a synchronized operation of a plurality of driver circuits.

For example, the driver circuit GD can be used in the functional panel700. The driver circuit GD is supplied with the control signal and has a function of supplying the first selection signal.

For example, a driver circuit SD can be used in the functional panel700. The driver circuit SD is supplied with the control signal and the data and can supply an image signal.

For example, the driver circuit RD can be used in the functional panel700. The driver circuit RD is supplied with the control signal and can supply a second selection signal.

For example, the reading circuit RC can be used in the functional panel700. The reading circuit RC is supplied with the control signal, and can read an imaging signal by a correlated double sampling method, for example.

<<Control Circuit>>

The control circuit has a function of generating and supplying the control signal. For example, a clock signal or a timing signal can be used as the control signal.

Specifically, the control circuit formed over a rigid substrate can be used in the functional panel. The control circuit formed over the rigid substrate and the control portion238can be electrically connected to each other using a flexible printed circuit.

<<Control Circuit233>>

A timing controller can be used as a control circuit233, for example.

Note that this embodiment can be combined with any of the other embodiments in this specification as appropriate.

Embodiment 7

In this embodiment, a structure of an input/output device of one embodiment of the present invention will be described with reference toFIG.16.

FIG.16is a block diagram illustrating the structure of the input/output device of one embodiment of the present invention.

<Structure Example 1 of Input/Output Device>

The input/output device described in this embodiment includes an input portion240and a display portion230(seeFIG.16).

<<Structure Example of Display Portion230>>

The display portion230includes a functional panel. For example, the functional panel700described in any one of Embodiment 1 to Embodiment 5 can be used for the display portion230. Note that a structure including the input portion240and the display portion230can be referred to as an input/output panel700TP.

<<Structure Example of Input Portion240>>

The input portion240includes a sensing region241. The input portion240has a function of sensing an object approaching the sensing region241.

The sensing region241includes a region overlapping with the pixel703(i, j).

Thus, the object approaching the region overlapping with the display portion can be sensed while image data is displayed using the display portion. A finger or the like approaching the display portion can be used as a pointer to input position data. Position data can be associated with image data displayed on the display portion. Thus, a novel input/output device that is highly convenient or reliable can be provided.

<<Structure Example 1 of Sensing Region241>>

The sensing region241includes one or a plurality of sensors, for example.

The sensing region241includes a group of sensors802(g,1) to802(g, q) and a different group of sensors802(1, h) to802(p, h). Note that g is an integer greater than or equal to 1 and less than or equal to p, h is an integer greater than or equal to 1 and less than or equal to q, and p and q are each an integer greater than or equal to 1.

The group of sensors802(g,1) to802(g, q) includes a sensor802(g, h) and is arranged in the row direction (the direction indicated by an arrow R2in the drawing). Note that the direction indicated by the arrow R2may be the same as or different from the direction indicated by the arrow R1.

The different group of sensors802(1, h) to802(p, h) includes the sensor802(g, h) and is arranged in the column direction intersecting the row direction (the direction indicated by an arrow C2in the drawing).

<<Sensor>>

The sensor has a function of sensing an approaching pointer. For example, a finger or a stylus pen can be used as the pointer. For example, a piece of metal or a coil can be used for the stylus pen.

Specifically, a capacitive proximity sensor, an electromagnetic inductive proximity sensor, an optical proximity sensor, a resistive proximity sensor, or the like can be used as the sensor.

A plurality of types of sensors can be used in combination. For example, a sensor that senses a finger and a senor that senses a stylus pen can be used in combination.

This allows determination of the kind of a pointer. Different instructions can be associated with sensing data depending on the kind of a pointer that has been determined. Specifically, in the case where it is determined that a finger is used as a pointer, sensing data can be associated with a gesture. In the case where it is determined that a stylus pen is used as a pointer, sensing data can be associated with drawing processing.

Specifically, a finger can be sensed using a capacitive, pressure-sensitive, or optical proximity sensor. A stylus pen can be sensed using an electromagnetic inductive or optical proximity sensor.

<<Structure Example 2 of Input Portion240>>

The input portion240includes an oscillation circuit OSC and a sensing circuit DC (seeFIG.16).

The oscillation circuit OSC supplies a search signal to the sensor802(g, h). For example, a rectangular wave, a sawtooth wave, a triangular wave, or a sine wave can be used as the search signal.

The sensor802(g, h) generates and supplies a sensing signal that changes in accordance with the search signal and the distance to a pointer approaching the sensor802(g, h).

The sensing circuit DC supplies input data in response to the sensing signal.

Accordingly, the distance from an approaching pointer to the sensing region241can be sensed. The position in the sensing region241where the pointer comes the closest can be sensed.

Note that this embodiment can be combined with any of the other embodiments in this specification as appropriate.

Embodiment 8

In this embodiment, a structure of a data processing device of one embodiment of the present invention will be described with reference toFIG.17toFIG.19.

FIG.17Ais a block diagram illustrating the structure of the data processing device of one embodiment of the present invention.FIG.17BandFIG.17Care projection views each illustrating an example of the appearance of the data processing device.

FIG.18shows flowcharts showing a program of one embodiment of the present invention.FIG.18Ais a flowchart showing main processing of the program of one embodiment of the present invention, andFIG.18Bis a flowchart showing interrupt processing.

FIG.19shows the program of one embodiment of the present invention.FIG.19Ais a flowchart showing interrupt processing of the program of one embodiment of the present invention.FIG.19Bis a schematic view illustrating handling of the data processing device, andFIG.19Cis a timing chart showing the operation of the data processing device of one embodiment of the present invention.

<Structure Example 1 of Data Processing Device>

The data processing device described in this embodiment includes an arithmetic device210and an input/output device220(seeFIG.17A). Note that the input/output device220is electrically connected to the arithmetic device210. A data processing device200can include a housing (seeFIG.17BandFIG.17C).

<<Structure Example 1 of Arithmetic Device210>>

The arithmetic device210is supplied with input data II or sensing data DS. The arithmetic device210generates the control data CI and the image data VI on the basis of the input data II or the sensing data DS, and supplies the control data CI and the image data VI.

The arithmetic device210includes an arithmetic portion211and a memory portion212. The arithmetic device210also includes a transmission path214and an input/output interface215.

The transmission path214is electrically connected to the arithmetic portion211, the memory portion212, and the input/output interface215.

<<Arithmetic Portion211>>

The arithmetic portion211has a function of executing a program, for example.

<<Memory Portion212>>

The memory portion212has a function of storing, for example, the program executed by the arithmetic portion211, initial data, setting data, an image, or the like.

Specifically, a hard disk, a flash memory, a memory using a transistor including an oxide semiconductor, or the like can be used.

<<Input/Output Interface215and Transmission Path214>>

The input/output interface215includes a terminal or a wiring and has a function of supplying data and being supplied with data. The input/output interface215can be electrically connected to the transmission path214, for example. The input/output interface215can also be electrically connected to the input/output device220.

The transmission path214includes a wiring and has a function of supplying data and being supplied with data. The transmission path214can be electrically connected to the input/output interface215, for example. The transmission path214can also be electrically connected to the arithmetic portion211, the memory portion212, or the input/output interface215.

<<Structure Example of Input/Output Device220>>

The input/output device220supplies the input data II and the sensing data DS. The input/output device220is supplied with the control data CI and the image data VI (seeFIG.17A).

As the input data II, for example, a scan code of a keyboard, position data, data on button handling, sound data, or image data can be used. As the sensing data DS, for example, illuminance data, attitude data, acceleration data, direction data, pressure data, temperature data, humidity data, or the like of the environment where the data processing device200is used, or the like can be used.

As the control data CI, for example, a signal controlling the luminance of display of the image data VI, a signal controlling the color saturation, or a signal controlling the hue can be used. A signal that changes display of part of the image data VI can be used as the control data CI.

The input/output device220includes the display portion230, the input portion240, and a sensing portion250. For example, the input/output device described in Embodiment 7 can be used as the input/output device220. The input/output device220can include a communication portion290.

<<Structure Example of Display Portion230>>

The display portion230displays the image data VI on the basis of the control data CI.

The display portion230includes the control portion238, the driver circuit GD, the driver circuit SD, and the functional panel700(seeFIG.15). For example, the display device described in Embodiment 6 can be used for the display portion230.

<<Structure Example of Input Portion240>>

The input portion240generates the input data II. For example, the input portion240has a function of supplying position data P1.

For example, a human interface or the like can be used as the input portion240(seeFIG.17A). Specifically, a keyboard, a mouse, a touch sensor, a microphone, a camera, or the like can be used as the input portion240.

A touch sensor including a region overlapping with the display portion230can be used. Note that an input/output device including the display portion230and a touch sensor including a region overlapping with the display portion230can be referred to as a touch panel or a touch screen.

A user can make various gestures (tap, drag, swipe, pinch in, and the like) using his/her finger touching the touch panel as a pointer, for example.

The arithmetic device210, for example, analyzes data on the position, path, or the like of a finger in contact with the touch panel and can determine that a predetermined gesture is supplied when the analysis results meet predetermined conditions. Thus, the user can supply a predetermined operation instruction associated with a predetermined gesture in advance by using the gesture.

For instance, the user can supply a “scroll instruction” for changing the display position of image data by using a gesture of moving a finger in contact with the touch panel along the touch panel.

The user can supply a “dragging instruction” for pulling out and displaying a navigation panel NP at an edge portion of the region231by using a gesture of moving a finger in contact with the edge portion of the region231(seeFIG.17C). Moreover, the user can supply a “leafing through instruction” for displaying index images IND, some parts of other pages, or thumbnail images TN of other pages in a predetermined order on the navigation panel NP so that the user can flip through these images, by using a gesture of moving the position where a finger presses hard. The instruction can be supplied by using the finger press pressure. Consequently, the user can turn the pages of an e-book reader terminal like flipping through the pages of a paper book. The user can search a certain page with the aid of the thumbnail images TN or the index images IND.

<<Structure Example of Sensing Portion250>>

The sensing portion250generates the sensing data DS. The sensing portion250has a function of sensing the illuminance of the environment where the data processing device200is used and a function of supplying illuminance data, for example.

The sensing portion250has a function of sensing the ambient conditions and supplying the sensing data. Specifically, illuminance data, attitude data, acceleration data, direction data, pressure data, temperature data, humidity data, or the like can be supplied

For example, a photosensor, an attitude sensor, an acceleration sensor, a direction sensor, a GPS (Global positioning system) signal receiving circuit, a pressure-sensitive switch, a pressure sensor, a temperature sensor, a humidity sensor, a camera, or the like can be used as the sensing portion250.

<<Communication Portion290>>

The communication portion290has a function of supplying data to a network and obtaining data from the network.

<<Housing>>

Note that the housing has a function of storing the input/output device220or the arithmetic device210. The housing has a function of supporting the display portion230or the arithmetic device210.

Thus, the control data can be generated on the basis of the input data or the sensing data. The image data can be displayed on the basis of the input data or the sensing data. The data processing device is capable of operating with knowledge of the intensity of light that the housing of the data processing device receives in the environment where the data processing device is used. The user of the data processing device can select a display method. Thus, a novel data processing device that is highly convenient or reliable can be provided.

Note that in some cases, these components cannot be clearly distinguished from each other and one component may also serve as another component or may include part of another component. For example, a touch panel in which a touch sensor overlaps with a functional panel is an input portion as well as a display portion.

<<Structure Example 2 of Arithmetic Device210>>

The arithmetic device210includes an artificial intelligence (AI) portion213(seeFIG.17A).

The artificial intelligence portion213is supplied with the input data II or the sensing data DS, and the artificial intelligence portion213infers the control data CI on the basis of the input data II or the sensing data DS. Moreover, the artificial intelligence portion213supplies the control data CI.

In this manner, the control data CI for display that can be felt suitable can be generated. Display that can be felt suitable is possible. The control data CI for display that can be felt comfortable can be generated. Display that can be felt comfortable is possible. Thus, a novel data processing device that is highly convenient or reliable can be provided.

[Natural Language Processing on Input Data II]

Specifically, the artificial intelligence portion213can perform natural language processing on the input data II to extract one feature from the whole input data II. For example, the artificial intelligence portion213can infer emotion or the like put in the input data II, which can be a feature. The artificial intelligence portion213can infer the color, design, font, or the like empirically felt suitable for the feature. The artificial intelligence portion213can generate data specifying the color, design, or font of a letter or data specifying the color or design of the background, and the data can be used as the control data CI.

Specifically, the artificial intelligence portion213can perform natural language processing on the input data II to extract some words included in the input data II. For example, the artificial intelligence portion213can extract expressions including a grammatical error, a factual error, emotion, and the like. The artificial intelligence portion213can generate the control data CI for displaying extracted part in the color, design, font, or the like different from those of another part, and the data can be used as the control data CI.

[Image Processing on Input Data II]

Specifically, the artificial intelligence portion213can perform image processing on the input data II to extract one feature from the input data II. For example, the artificial intelligence portion213can infer the age where an image of the input data II is taken, whether the image is taken indoors or outdoors, whether the image is taken in the daytime or at night, or the like, which can be a feature. The artificial intelligence portion213can infer the color tone empirically felt suitable for the feature and generate the control data CI for use of the color tone for display. Specifically, data specifying color (e.g., full color, monochrome, or sepia) used for expression of a gradation can be used as the control data CI.

Specifically, the artificial intelligence portion213can perform image processing on the input data II to extract some images included in the input data II. For example, the artificial intelligence portion213can generate the control data CI for displaying a boundary between extracted part of the image and another part. Specifically, the artificial intelligence portion213can generate the control data CI for displaying a rectangle surrounding the extracted part of the image.

[Inference Using Sensing Data DS]

Specifically, the artificial intelligence portion213can generate an inference R1using the sensing data DS. The artificial intelligence portion213can generate the control data CI on the basis of the inference R1so that the user of the data processing device200can feel comfortable.

Specifically, the artificial intelligence portion213can generate the control data CI for adjustment of display brightness on the basis of the ambient illuminance or the like so that the display brightness can be felt comfortable. The artificial intelligence portion213can generate the control data CI for adjustment of volume on the basis of the ambient noise or the like so that the volume can be felt comfortable.

As the control data CI, a clock signal, a timing signal, or the like that is supplied to the control portion238included in the display portion230can be used. A clock signal, a timing signal, or the like that is supplied to a control portion248included in the input portion240can be used as the control data CI.

<Structure Example 2 of Data Processing Device>

Another structure of the data processing device of one embodiment of the present invention will be described with reference toFIG.18AandFIG.18B.

<<Program>>

A program of one embodiment of the present invention has the following steps (seeFIG.18A).

[First Step]

In a first step, setting is initialized (see (S1) inFIG.18A).

For example, predetermined image data that is to be displayed on start-up, a predetermined mode for displaying the image data, and data for determining a predetermined display method for displaying the image data are acquired from the memory portion212. Specifically, one still image data or another moving image data can be used as the predetermined image data. Furthermore, a first mode or a second mode can be used as the predetermined mode.

[Second Step]

In a second step, interrupt processing is allowed (see (S2) inFIG.18A). Note that an arithmetic device allowed to execute the interrupt processing can perform the interrupt processing in parallel with the main processing. The arithmetic device that has returned from the interrupt processing to the main processing can reflect the results obtained through the interrupt processing in the main processing.

The arithmetic device may execute the interrupt processing when a counter has an initial value, and the counter may be set at a value other than the initial value when the arithmetic device returns from the interrupt processing. Thus, the interrupt processing can be executed any time after the program is started up.

[Third Step]

In a third step, image data is displayed by a predetermined mode or a predetermined display method selected in the first step or the interrupt processing (see (S3) inFIG.18A). Note that the predetermined mode determines a mode for displaying the data, and the predetermined display method determines a method for displaying the image data. For example, the image data VI can be used as data to be displayed.

One method for displaying the image data VI can be associated with the first mode, for example. Another method for displaying the image data VI can be associated with the second mode. Thus, a display method can be selected on the basis of the selected mode.

<<First Mode>>

Specifically, a method for supplying selection signals to a scan line at a frequency of 30 Hz or higher, preferably 60 Hz or higher, to perform display in response to the selection signals can be associated with the first mode.

For example, when selection signals are supplied at a frequency of 30 Hz or higher, preferably 60 Hz or higher, the movement of a displayed moving image can be smooth.

For example, when an image is refreshed at a frequency of 30 Hz or higher, preferably 60 Hz or higher, an image that changes so as to smoothly follow the user's operation can be displayed on the data processing device200which is being operated by the user.

<<Second Mode>>

Specifically, a method for supplying selection signals to a scan line at a frequency lower than 30 Hz, preferably lower than 1 Hz, and further preferably less than once a minute, to perform display in response to the selection signals can be associated with the second mode.

The supply of selection signals at a frequency lower than 30 Hz, preferably lower than 1 Hz, and further preferably less than once a minute enables display with a flicker or flickering suppressed. Furthermore, the power consumption can be reduced.

For example, in the case where the data processing device200is used for a clock, the display can be refreshed at a frequency of once a second, once a minute, or the like.

In the case where a light-emitting element is used as a display element, for example, the light-emitting element can be made to emit light in a pulsed manner so that the image data is displayed. Specifically, an organic EL element can be made to emit light in a pulsed manner, and its afterglow can be used for display. The organic EL element has excellent frequency characteristics; thus, time for driving the light-emitting element can be shortened and the power consumption can be reduced in some cases. Heat generation is inhibited; thus, the deterioration of the light-emitting element can be suppressed in some cases.

[Fourth Step]

In a fourth step, selection is performed such that the program proceeds to a fifth step when an end instruction has been supplied, whereas the program proceeds to the third step when the end instruction has not been supplied (see (S4) inFIG.18A).

For example, the end instruction supplied in the interrupt processing may be used for the determination.

[Fifth Step]

In the fifth step, the program ends (see (S5) inFIG.18A).

<<Interrupt Processing>>

The interrupt processing includes a sixth step to an eighth step described below (seeFIG.18B).

[Sixth Step]

In the sixth step, the illuminance of the environment where the data processing device200is used is sensed using the sensing portion250, for example (see (S6) inFIG.18B). Note that color temperature or chromaticity of ambient light may be sensed instead of the illuminance of the environment.

[Seventh Step]

In the seventh step, a display method is determined on the basis of the sensed illuminance data (see (S7) inFIG.18B). For example, a display method is determined such that the brightness of display is not too dark or too bright.

Note that in the case where the color temperature of the ambient light or the chromaticity of the ambient light is sensed in the sixth step, the color of display may be adjusted.

[Eighth Step]

In the eighth step, the interrupt processing ends (see (S8) inFIG.18B).

<Structure Example 3 of Data Processing Device>

Another structure of the data processing device of one embodiment of the present invention will be described with reference toFIG.19.

FIG.19Ais a flowchart illustrating a program of one embodiment of the present invention.FIG.19Ais a flowchart showing interrupt processing different from the interrupt processing shown inFIG.18B.

Note that the structure example 3 of the data processing device is different from the interrupt processing described with reference toFIG.18Bin that the interrupt processing includes a step of changing a mode on the basis of a supplied predetermined event. Different portions will be described in detail here, and the above description is referred to for portions that can use similar structures.

<<Interrupt Processing>>

The interrupt processing includes a sixth step to an eighth step described below (seeFIG.19A).

[Sixth Step]

In the sixth step, the program proceeds to the seventh step when a predetermined event has been supplied, whereas the program proceeds to the eighth step when the predetermined event has not been supplied (see (U6) inFIG.19A). For example, whether the predetermined event is supplied in a predetermined period or not can be used as a condition. Specifically, the predetermined period can be longer than 0 seconds, and shorter than or equal to 5 seconds, shorter than or equal to 1 second, or shorter than or equal to 0.5 seconds, preferably shorter than or equal to 0.1 seconds.

[Seventh Step]

In the seventh step, the mode is changed (see (U7) inFIG.19A). Specifically, the second mode is selected in the case where the first mode has been selected, and the first mode is selected in the case where the second mode has been selected.

For example, it is possible to change the display mode of a region that is part of the display portion230. Specifically, the display mode of a region where one driver circuit in the display portion230including a driver circuit GDA, a driver circuit GDB, and a driver circuit GDC supplies a selection signal can be changed (seeFIG.19B).

For example, the display mode of the region where a selection signal is supplied from the driver circuit GDB can be changed when a predetermined event is supplied to the input portion240in a region overlapping with the region where a selection signal is supplied from the driver circuit GDB (seeFIG.19BandFIG.19C). Specifically, the frequency of supply of the selection signal from the driver circuit GDB can be changed in accordance with a “tap” event supplied to a touch panel with a finger or the like.

A signal GCLK is a clock signal controlling the operation of the driver circuit GDB, and a signal PWC1and a signal PWC2are pulse width control signals controlling the operation of the driver circuit GDB. The driver circuit GDB supplies selection signals to a conductive film G2(m+1) to a conductive film G2(2m) on the basis of the signal GCLK, the signal PWC1, the signal PWC2, and the like.

Thus, for example, the driver circuit GDB can supply a selection signal without supply of selection signals from the driver circuit GDA and the driver circuit GDC. The display of the region where a selection signal is supplied from the driver circuit GDB can be refreshed without any change in the display of regions where selection signals are supplied from the driver circuit GDA and the driver circuit GDC. Power consumed by the driver circuits can be reduced.

[Eighth Step]

In the eighth step, the interrupt processing ends (see (U8) inFIG.19A). Note that in a period during which the main processing is executed, the interrupt processing may be repeatedly executed.

<<Predetermined Event>>

For example, it is possible to use events supplied using a pointing device such as a mouse, such as “click” and “drag”, and events supplied to a touch panel with a finger or the like used as a pointer, such as “tap”, “drag”, and “swipe”.

For example, the position of a slide bar pointed by a pointer, the swipe speed, and the drag speed can be used to assign arguments to an instruction associated with a predetermined event.

For example, data sensed by the sensing portion250is compared with a predetermined threshold value, and the compared results can be used for the event.

Specifically, a pressure sensor or the like in contact with a button or the like that is arranged so as to be pushed in a housing can be used for the sensing portion250.

<<Instruction Associated with Predetermined Event>>

For example, the end instruction can be associated with a predetermined event.

For example, “page-turning instruction” for switching display from one displayed image data to another image data can be associated with a predetermined event. Note that an argument determining the page-turning speed or the like, which is used when the “page-turning instruction” is executed, can be supplied using the predetermined event.

For example, “scroll instruction” for moving the display position of displayed part of image data and displaying another part continuing from that part, or the like can be associated with a predetermined event. Note that an argument determining the moving speed of display, or the like, which is used when the “scroll instruction” is executed, can be supplied using the predetermined event.

For example, an instruction for setting the display method, an instruction for generating image data, or the like can be associated with a predetermined event. Note that an argument determining the brightness of a generated image can be associated with a predetermined event. An argument determining the brightness of a generated image may be determined on the basis of ambient brightness sensed by the sensing portion250.

For example, an instruction for acquiring data distributed via a push service using the communication portion290or the like can be associated with a predetermined event.

Note that position data sensed by the sensing portion250may be used for the determination of the presence or absence of a qualification for acquiring data. Specifically, it may be determined that there is a qualification for acquiring data in the case of presence in a predetermined classroom, school, conference room, company, building, or the like or in a predetermined region. Thus, for example, educational materials distributed in a classroom of a school, a university, or the like can be received, so that the data processing device200can be used as a schoolbook or the like (seeFIG.17C). Materials distributed in a conference room in, for example, a company can be received and used for a conference material.

<Structure Example 4 of Data Processing Device>

Another structure of the data processing device of one embodiment of the present invention will be described with reference toFIG.20.

FIG.20Ais a flowchart showing a program of one embodiment of the present invention.FIG.20Ais a flowchart showing interrupt processing different from the interrupt processing shown inFIG.18B.FIG.20Bis a schematic view illustrating operation of the program shown inFIG.20A.FIG.20Cis a schematic view of an imaged fingerprint.

Note that the structure example 4 of the data processing device described with reference toFIG.20Ais different from the structure example described with reference toFIG.18Bin the interrupt processing. Specifically, the interrupt processing includes the step of determining a region, the step of generating an image, the step of displaying the image, and the step of imaging on the basis of a supplied predetermined event. Different portions will be described in detail here, and the above description is referred to for portions that can use similar structures.

<<Interrupt Processing>>

The interrupt processing includes a sixth step to an eleventh step (seeFIG.20A).

[Sixth Step]

In the sixth step, the program proceeds to the seventh step when a predetermined event has been supplied, whereas the program proceeds to the eleventh step when the predetermined event has not been supplied (see (V6) inFIG.20A).

The predetermined event can be supplied using the sensing portion250, for example. Specifically, a motion such as lifting of the data processing device can be used as the predetermined event. For example, a motion of the data processing device can be sensed using an angular sensor or an acceleration sensor. Touch or approach of an object such as a finger can be sensed using a touch sensor.

[Seventh Step]

In the seventh step, a first region SH is determined (see (V7) inFIG.20A).

For example, a region where an object such as a finger touches or approaches the input/output device220of one embodiment of the present invention can be the first region SH. A region that is set in advance by the user or the like can be used as the first region SH.

Specifically, an image of a finger THM or the like that touches or approaches the functional panel of one embodiment of the present invention is taken using the pixel703(i, j) and subjected to image processing, whereby the first region SH can be determined (seeFIG.20B).

For example, an image of a shadow caused when external light is blocked by touch or approach of an object such as the finger THM is taken using the pixel703(i, j) in the functional panel of one embodiment of the present invention and subjected to image processing, whereby the first region SH can be determined.

With the use of the pixel703(i, j) in the functional panel of one embodiment of the present invention, an object such as the finger THM that touches or approaches the functional panel is irradiated with light, and an image of light reflected by the object is taken using the pixel703(i, j) and subjected to image processing, whereby the first region SH can be determined.

A region where an object such as the finger THM touches can be determined as the first region SH by a touch sensor.

[Eighth Step]

In the eighth step, an image FI including a second region and a third region is generated on the basis of the first region SH (see (V8) inFIG.20AandFIG.20B). For example, the shape of the first region SH is used as the shape of the second region, and a region excluding the first region SH is used as the third region.

[Ninth Step]

In the ninth step, the image FI is displayed such that the second region overlaps with the first region SH (see (V9) inFIG.20AandFIG.20B).

For example, an image signal is generated from the image FI and supplied to the region231, and light is emitted from the pixel703(i, j). In a period during which the first selection signal is supplied to the conductive film G1(i), the generated image signal is supplied to the conductive film S1g(j), and the image signal can be written to the pixel703(i, j). The generated image signal is supplied to the conductive film S1g(j) and the conductive film S2g(j), and an enhanced image signal can be written to the pixel703(i, j). The use of an enhanced image signal enables display with higher luminance.

Thus, the image FI can be displayed to overlap with the region SH that is a region where the object such as a finger touches or approaches the region231. The region where the object such as a finger touches can be irradiated with light using the pixel703(i, j). The touching or approaching object such as the finger THM can be illuminated with a light. The object such as a finger can be led to touch or approach the region that is determined in advance by the user or the like.

[Tenth Step]

In the tenth step, the object that touches or approaches the first region SH is imaged while the image FI is displayed (see (V10) inFIG.20AandFIG.20B).

For example, an image of the finger THM or the like approaching the region231is taken while the finger or the like is irradiated with light. Specifically, an image of a fingerprint FP of the finger THM touching the region231can be taken (seeFIG.20C).

For example, the supply of the first selection signal can be stopped while an image is displayed with the pixel703(i, j). For example, imaging can be performed using the pixel703(i, j) while the supply of the selection signal to the pixel circuit530G(i, j) is stopped.

Accordingly, the touching or approaching object such as a finger can be imaged while the object is illuminated. Imaging can be performed in a period during which the first selection signal is not supplied. Noise in imaging can be inhibited. A clear image of a fingerprint can be obtained. An image that can be used for the authentication of the user can be obtained. In any area of the region231, an image of the fingerprint of the finger touching the region231can be taken clearly. Thus, a novel data processing device that is highly convenient or reliable can be provided.

[Eleventh Step]

In the eleventh step, the interrupt processing ends (see (V11) inFIG.20A).

Note that this embodiment can be combined with any of the other embodiments in this specification as appropriate.

Embodiment 9

In this embodiment, structures of a data processing device of one embodiment of the present invention will be described with reference toFIG.21toFIG.23.

FIG.21toFIG.23are diagrams illustrating structures of the data processing device of one embodiment of the present invention.FIG.21Ais a block diagram of the data processing device, andFIG.21BtoFIG.21Eare perspective views illustrating structures of the data processing device.FIG.22AtoFIG.22Eare perspective views illustrating structures of the data processing device.FIG.23AandFIG.23Bare perspective views illustrating structures of the data processing device.

<Data Processing Device>

A data processing device5200B described in this embodiment includes an arithmetic device5210and an input/output device5220(seeFIG.21A).

The arithmetic device5210has a function of being supplied with operation data and has a function of supplying image data on the basis of the operation data.

The input/output device5220includes a display portion5230, an input portion5240, a sensing portion5250, and a communication portion5290and has a function of supplying operation data and a function of being supplied with image data. The input/output device5220also has a function of supplying sensing data, a function of supplying communication data, and a function of being supplied with communication data.

The input portion5240has a function of supplying operation data. For example, the input portion5240supplies operation data on the basis of operation by a user of the data processing device5200B.

Specifically, a keyboard, a hardware button, a pointing device, a touch sensor, an illuminance sensor, an imaging device, an audio input device, an eye-gaze input device, an attitude detection device, or the like can be used as the input portion5240.

The display portion5230includes a functional panel and has a function of displaying image data. For example, the functional panel described in any one of Embodiment 1 to Embodiment 5 can be used for the display portion5230.

The sensing portion5250has a function of supplying sensing data. For example, the sensing portion5250has a function of sensing a surrounding environment where the data processing device is used and supplying sensing data.

Specifically, an illuminance sensor, an imaging device, an attitude detection device, a pressure sensor, a human motion sensor, or the like can be used as the sensing portion5250.

The communication portion5290has a function of being supplied with communication data and a function of supplying communication data. For example, the communication portion5290has a function of being connected to another electronic device or a communication network through wireless communication or wired communication. Specifically, the communication portion5290has a function of wireless local area network communication, telephone communication, near field communication, or the like.

<<Structure Example 1 of Data Processing Device>>

For example, the display portion5230can have an outer shape along a cylindrical column or the like (seeFIG.21B). In addition, the data processing device has a function of changing its display method in accordance with the illuminance of a usage environment. Furthermore, the data processing device has a function of changing displayed content in response to sensed existence of a person. This allows the data processing device to be provided on a column of a building, for example. The data processing device can display advertising, guidance, or the like. The data processing device can be used for digital signage or the like.

<<Structure Example 2 of Data Processing Device>>

For example, the data processing device has a function of generating image data on the basis of the path of a pointer used by a user (seeFIG.21C). Specifically, the functional panel with a diagonal size of 20 inches or longer, preferably 40 inches or longer, and further preferably 55 inches or longer can be used. Alternatively, a plurality of functional panels can be arranged and used as one display region. Alternatively, a plurality of functional panels can be arranged and used as a multiscreen. Thus, the data processing device can be used for an electronic blackboard, an electronic bulletin board, digital signage, or the like.

<<Structure Example 3 of Data Processing Device>>

The data processing device can receive data from another device and display the data on the display portion5230(seeFIG.21D). Several options can be displayed. The user can choose some from the options and send a reply to a transmitter of the data. For example, the data processing device has a function of changing its display method in accordance with the illuminance of a usage environment. Thus, the power consumption of a smartwatch can be reduced, for example. A smartwatch can display an image to be suitably used even in an environment under strong external light, e.g., outdoors in fine weather, for example.

<<Structure Example 4 of Data Processing Device>>

For example, the display portion5230has a surface gently curved along a side surface of a housing (seeFIG.21E). The display portion5230includes a functional panel, and the functional panel has a function of performing display on the front surface, the side surfaces, the top surface, and the rear surface, for example. Thus, for example, a mobile phone can display data not only on its front surface but also on its side surfaces, its top surface, and its rear surface.

<<Structure Example 5 of Data Processing Device>>

For example, the data processing device can receive data via the Internet and display the data on the display portion5230(seeFIG.22A). A created message can be checked on the display portion5230. The created message can be sent to another device. The data processing device has a function of changing its display method in accordance with the illuminance of a usage environment, for example. Thus, the power consumption of a smartphone can be reduced. A smartphone can display an image to be suitably used even in an environment under strong external light, e.g., outdoors in fine weather, for example.

<<Structure Example 6 of Data Processing Device>>

A remote controller can be used as the input portion5240(seeFIG.22B). For example, the data processing device can receive data from a broadcast station or via the Internet and display the data on the display portion5230. An image of a user can be taken using the sensing portion5250. The image of the user can be transmitted. The data processing device can acquire a viewing history of the user and provide it to a cloud service. The data processing device can acquire recommendation data from a cloud service and display the data on the display portion5230. A program or a moving image can be displayed on the basis of the recommendation data. The data processing device has a function of changing its display method in accordance with the illuminance of a usage environment, for example. Accordingly, for example, a television system can display an image to be suitably used even when irradiated with strong external light that enters a room in fine weather.

<<Structure Example 7 of Data Processing Device>>

For example, the data processing device can receive educational materials via the Internet and display them on the display portion5230(seeFIG.22C). An assignment can be input with the input portion5240and sent via the Internet. A corrected assignment or the evaluation of the assignment can be obtained from a cloud service and displayed on the display portion5230. Suitable educational materials can be selected on the basis of the evaluation and displayed.

For example, the display portion5230can perform display using an image signal received from another data processing device. When the data processing device is placed on a stand or the like, the display portion5230can be used as a sub-display. Thus, for example, a tablet computer can display an image to be suitably used even in an environment under strong external light, e.g., outdoors in fine weather.

<<Structure Example 8 of Data Processing Device>>

The data processing device includes, for example, a plurality of display portions5230(seeFIG.22D). For example, the display portion5230can display an image that the sensing portion5250is capturing. A captured image can be displayed on the sensing portion. A captured image can be decorated using the input portion5240. A message can be attached to a captured image. A captured image can be transmitted via the Internet. The data processing device has a function of changing its shooting conditions in accordance with the illuminance of a usage environment. Accordingly, for example, a digital camera can display an object in such a manner that an image is favorably viewed even in an environment under strong external light, e.g., outdoors in fine weather.

<<Structure Example 9 of Data Processing Device>>

For example, the data processing device of this embodiment is used as a master and another data processing device is used as a slave, whereby the other data processing device can be controlled (seeFIG.22E). As another example, part of image data can be displayed on the display portion5230and another part of the image data can be displayed on a display portion of another data processing device. Image signals can be supplied. With the communication portion5290, data to be written can be obtained from an input portion of another data processing device. Thus, a large display region can be utilized by using a portable personal computer, for example.

<<Structure Example 10 of Data Processing Device>>

The data processing device includes, for example, the sensing portion5250that senses an acceleration or a direction (seeFIG.23A). The sensing portion5250can supply data on the position of the user or the direction in which the user faces. The data processing device can generate image data for the right eye and image data for the left eye in accordance with the position of the user or the direction in which the user faces. The display portion5230includes a display region for the right eye and a display region for the left eye. Thus, a virtual reality image that gives the user a sense of immersion can be displayed on a goggles-type data processing device, for example.

<<Structure Example 11 of Data Processing Device>>

The data processing device includes, for example, an imaging device and the sensing portion5250that senses an acceleration or a direction (seeFIG.23B). The sensing portion5250can supply data on the position of the user or the direction in which the user faces. The data processing device can generate image data in accordance with the position of the user or the direction in which the user faces. Accordingly, the data can be shown together with a real-world scene, for example. An augmented reality image can be displayed on a glasses-type data processing device.

Note that this embodiment can be combined with any of the other embodiments in this specification as appropriate.

Embodiment 10

In this embodiment, structures of the functional panel of one embodiment of the present invention will be described with reference toFIG.24toFIG.26.

FIG.24is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.24is a cross-sectional view illustrating part of the pixel702G(i, j) in the functional panel of one embodiment of the present invention.

FIG.25is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.25AandFIG.25Bare cross-sectional views each illustrating a structure of the light-emitting device550G(i, j).

FIG.26is a diagram illustrating a structure of the functional panel of one embodiment of the present invention.FIG.26Ais a cross-sectional view illustrating a structure of the pixel702G(i, j) that is different from the structure inFIG.24; andFIG.26Bis a cross-sectional view illustrating a structure of the pixel702S(i, j) in the functional panel of one embodiment of the present invention.

<Structure Example 1 of Functional Panel700>

The functional panel described in this embodiment includes the pixel702G(i, j).

<<Structure Example 1 of Pixel702G(i, j)>>

The pixel702G(i, j) includes the microlens ML, the light-emitting device550G(i, j), and the color conversion layer CC(G) (seeFIG.24). Note that in this specification, a light-emitting element can be referred to as a light-emitting device, and a photoelectric conversion element can be referred to as a photoelectric conversion device.

The light-emitting device550G(i, j) emits the light H1.

<<Structure Example 1 of Microlens ML>>

The microlens ML is interposed between the light-emitting device550G(i, j) and the color conversion layer CC(G) and converges the light H1on the color conversion layer CC(G). The microlens ML can have the convex portion facing the light-emitting device550G(i, j), for example. In the case where the sealant705, for example, is provided between the microlens ML and the light-emitting device550G(i, j), the microlens ML has a refractive index different from that of the sealant705. Specifically, a material having a higher refractive index than the sealant705can be used for the microlens.

<<Structure Example 1 of Color Conversion Layer CC(G)>>

The color conversion layer CC(G) converts the light H1into light H2. the intensity of long-wavelength light in a spectrum of the light H2is higher than that in a spectrum of the first light H1.

Accordingly, the first light H1emitted from the light-emitting device550G(i, j) can be converged on the color conversion layer CC(G). The first light H1emitted from the light-emitting device550G(i, j) can be converged and then converted into the second light H2. The first light H1emitted from the light-emitting device550G(i, j) can be efficiently converged because of its higher directivity than that of light emitted through the color conversion layer CC(G). The first light H1emitted from the light-emitting device550G(i, j) can be used more efficiently than in the case of converging light emitted through the color conversion layer CC(G). Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 2 of Microlens ML>>

The microlens ML can have the convex portion facing the color conversion layer CC(G), for example (seeFIG.26A).

<Structure Example 2 of Functional Panel700>

The functional panel described in this embodiment includes an insulating film528.

<<Insulating Film528>>

The insulating film528has an opening portion528H, and the opening portion528H overlaps with the light-emitting device550G(i, j) (seeFIG.24). Note that the insulating film528has a function of separating a plurality of adjacent pixels and thus can be referred to as a bank.

The opening portion528H has an inclined surface528SL on its side wall, and the inclined surface528SL reflects the light H1toward the microlens ML. A material having high reflectance with respect to the light H1can be used for the insulating film528. For example, a film528A and a film528B can be used as the insulating film528. Specifically, a metal film having high reflectivity can be used as the film528B, and an end portion of the film528B can be covered with the film528A having an insulating property (seeFIG.24). In the case where the sealant705is provided, for example, the film528A has a refractive index different from that of the sealant705. Specifically, a material having a higher refractive index than the sealant705can be used for the microlens.

Accordingly, the light H1emitted from the light-emitting device550G(i, j) can be condensed on the microlens ML. The light H1emitted from the light-emitting device550G(i, j) can be used efficiently. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 2 of Color Conversion Layer CC(G)>>

The color conversion layer CC(G) includes quantum dots and a light-transmitting resin. For example, the quantum dots can be covered with a film that has a light-transmitting property and is less likely to generate or transmit a gas. Alternatively, a resin polymerized with quantum dots can be used. Alternatively, a photosensitive polymer that covers quantum dots can be used. With the use of a photosensitive polymer, a fine color conversion layer CC(G) can be formed.

Thus, the spectral width of the light H2can be narrowed. Light with a narrow half width of a spectrum can be used. A color with high saturation can be displayed. Aggregation of quantum dots can be prevented. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<Structure Example 3 of Functional Panel700>

The functional panel of one embodiment of the present invention includes a light-blocking layer BM. In addition, a coloring layer CF(G) is included.

<<Light-Blocking Layer BM>>

The light-blocking layer BM has an opening portion, and the opening portion overlaps with the light-emitting device550G(i, j).

<<Coloring Layer CF(G)>>

The transmittance of the coloring layer CF(G) with respect to the light H1is lower than the transmittance with respect to the light H2.

Accordingly, the amount of external light that reaches the color conversion layer CC(G) can be reduced. Unintentional conversion of external light by the color conversion layer CC(G) can be inhibited. A reduction in contrast due to external light can be inhibited. The display quality can be improved. Thus, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 3 of Light-Emitting Device550G(i, j)>>

The light-emitting device550G(i, j) includes a layer111, a layer112, a layer113, and a layer114(seeFIG.25A). The layer111, the layer112, the layer113, and the layer114can be formed by a variety of known deposition methods. For example, a vacuum evaporation method or a printing method can be used. Specifically, a resistive heating vacuum evaporation method, an ink-jet method, or the like can be used.

The layer113is interposed between the layer112and the layer114. The layer112is interposed between the layer111and the layer113.

The layer111contains a material HT1and a material AM.

The layer112contains a material HT2.

The layer113contains a light-emitting material EM and a material HOST.

The layer114contains a material ET and a material OMC.

[Material HT1]

The material HT1has a HOMO level higher than or equal to −5.7 eV and lower than or equal to −5.4 eV. For example, a hole-transport material that has a hole-transport property is preferable, and a material having any of a carbazole skeleton, a dibenzofuran skeleton, a dibenzothiophene skeleton, and an anthracene skeleton can be used as the material HT. Alternatively, aromatic amine having a substituent that includes a dibenzofuran ring or a dibenzothiophene ring, aromatic monoamine that includes a naphthalene ring, or aromatic monoamine in which a 9-fluorenyl group is bonded to nitrogen of amine through an arylene group can be used as the material HT. Thus, holes are easily injected into the layer112.

Specific examples of a compound that can be used as the material HT1include N-(4-biphenyl)-6,N-diphenylbenzo[b]naphtho[1,2-d]furan-8-amine (abbreviation: BnfABP), N,N-bis(4-biphenyl)-6-phenylbenzo[b]naphtho[1,2-d]furan-8-amine (abbreviation: BBABnf), 4,4′-bis(6-phenylbenzo[b]naphtho[1,2-d]furan-8-yl-4″-phenyltriphenylamine (abbreviation: BnfBB1BP), N,N-bis(4-biphenyl)benzo[b]naphtho[1,2-d]furan-6-amine (abbreviation: BBABnf(6)), N,N-bis(4-biphenyl)benzo[b]naphtho[1,2-d]furan-8-amine (abbreviation: BBABnf(8)), N,N-bis(4-biphenyl)benzo[b]naphtho[2,3-d]furan-4-amine (abbreviation: BBABnf(II) (4)), N,N-bis[4-(dibenzofuran-4-yl)phenyl]-4-amino-p-terphenyl (abbreviation: DBfBB1TP), N-[4-(dibenzothiophen-4-yl)phenyl]-N-phenyl-4-biphenylamine (abbreviation: ThBA1BP), 4-(2-naphthyl)-4′,4″-diphenyltriphenylamine (abbreviation: BBAβPNB), 4-[4-(2-naphthyl)phenyl]-4′,4″-diphenyltriphenylamine (abbreviation: BBAβNBi), 4,4′-diphenyl-4″-(6; 1′-binaphthyl-2-yl)triphenylamine (abbreviation: BBAαNβNB), 4,4′-diphenyl-4″-(7; 1′-binaphthyl-2-yl)triphenylamine (abbreviation: BBAαNβNB-03), 4,4′-diphenyl-4″-(7-phenyl)naphthyl-2-yltriphenylamine (abbreviation: BBAPβNB-03), 4,4′-diphenyl-4″-(6; 2′-binaphthyl-2-yl)triphenylamine (abbreviation: BBA(βN2)B), 4,4′-diphenyl-4″-(7; 2′-binaphthyl-2-yl)triphenylamine (abbreviation: BBA(βN2)B-03), 4,4′-diphenyl-4″-(4; 2′-binaphthyl-1-yl)triphenylamine (abbreviation: BBAβNαNB), 4,4′-diphenyl-4″-(5; 2′-binaphthyl-1-yl)triphenylamine (abbreviation: BBAβNαNB-02), 4-(4-biphenylyl)-4′-(2-naphthyl)-4″-phenyltriphenylamine (abbreviation: TPBiAβNB), 4-(3-biphenylyl)-4′-[4-(2-naphthyl)phenyl]-4″-phenyltriphenylamine (abbreviation: mTPBiAβNBi), 4-(4-biphenylyl)-4′-[4-(2-naphthyl)phenyl]-4″-phenyltriphenylamine (abbreviation: TPBiAβNBi), 4-phenyl-4′-(1-naphthyl)triphenylamine (abbreviation: αNBA1BP), 4,4′-bis(1-naphthyl)triphenylamine (abbreviation: αNBB1BP), 4,4′-diphenyl-4″-[4′-(carbazol-9-yl)biphenyl-4-yl]triphenylamine (abbreviation: YGTBi1BP), 4′-[4-(3-phenyl-9H-carbazol-9-yl)phenyl]tris(1,1′-biphenyl-4-yl)amine (abbreviation: YGTBi1BP-02), 4-diphenyl-4′-(2-naphthyl)-4″-{9-(4-biphenylyl)carbazole)}triphenylamine (abbreviation: YGTBiβNB), N-[4-(9-phenyl-9H-carbazol-3-yl)phenyl]-N-[4-(1-naphthyl)phenyl]-9,9′-spirobi(9H-fluoren)-2-amine (abbreviation: PCBNBSF), N,N-bis(4-biphenylyl)-9,9′-spirobi[9H-fluoren]-2-amine (abbreviation: BBASF), N,N-bis(1,1′-biphenyl-4-yl)-9,9′-spirobi[9H-fluoren]-4-amine (abbreviation: BBASF(4)), N-(1,1′-biphenyl-2-yl)-N-(9,9-dimethyl-9H-fluoren-2-yl)-9,9′-spirobi(9H-fluoren)-4-amine (abbreviation: oFBiSF), N-(4-biphenyl)-N-(dibenzofuran-4-yl)-9,9-dimethyl-9H-fluoren-2-amine (abbreviation: FrBiF), N-[4-(1-naphthyl)phenyl]-N-[3-(6-phenyldibenzofuran-4-yl)phenyl]-1-naphthylamine (abbreviation: mPDBfBNBN), 4-phenyl-4′-(9-phenylfluoren-9-yl)triphenylamine (abbreviation: BPAFLP), 4-phenyl-3′-(9-phenylfluoren-9-yl)triphenylamine (abbreviation: mBPAFLP), 4-phenyl-4′-[4-(9-phenylfluoren-9-yl)phenyl]triphenylamine (abbreviation: BPAFLBi), 4-phenyl-4′-(9-phenyl-9H-carbazol-3-yl)triphenylamine (abbreviation: PCBA1BP), 4,4′-diphenyl-4″-(9-phenyl-9H-carbazol-3-yl)triphenylamine (abbreviation: PCBBi1BP), 4-(1-naphthyl)-4′-(9-phenyl-9H-carbazol-3-yl)triphenylamine (abbreviation: PCBANB), 4,4′-di(1-naphthyl)-4″-(9-phenyl-9H-carbazol-3-yl)triphenylamine (abbreviation: PCBNBB), N-phenyl-N-[4-(9-phenyl-9H-carbazol-3-yl)phenyl]spiro-9,9′-bifluoren-2-amine (abbreviation: PCBASF), and N-(1,1′-biphenyl-4-yl)-9,9-dimethyl-N-[4-(9-phenyl-9H-carbazol-3-yl)phenyl]-9H-fluoren-2-amine (abbreviation: PCBBiF).

[Material AM]

The material AM has an acceptor property. For example, an organic compound or the like that includes an electron-withdrawing group (in particular, a halogen group such as a fluoro group, or a cyano group) is used as the material AM, and a substance that exhibits an electron-accepting property with respect to the material HT1is selected as appropriate. Examples of such organic compounds include 7,7,8,8-tetracyano-2,3,5,6-tetrafluoroquinodimethane (abbreviation: F4-TCNQ), chloranil, 2,3,6,7,10,11-hexacyano-1,4,5,8,9,12-hexaazatriphenylene (abbreviation: HAT-CN), 1,3,4,5,7,8-hexafluorotetracyano-naphthoquinodimethane (abbreviation: F6-TCNNQ), and 2-(7-dicyanomethylen-1,3,4,5,6,8,9,10-octafluoro-7H-pyren-2-ylidene)malononitrile. A compound in which electron-withdrawing groups are bonded to a condensed aromatic ring having a plurality of heteroatoms, such as HAT-CN, is particularly preferable because it is thermally stable. A [3]radialene derivative having an electron-withdrawing group (in particular, a halogen group such as a fluoro group, or a cyano group) has a very high electron-accepting property and thus is preferable. Specific examples include α,α′,α″-1,2,3-cyclopropanetriylidenetris[4-cyano-2,3,5,6-tetrafluorobenzeneacetonitrile], α,α′,α″-1,2,3-cyclopropanetriylidenetris[2,6-dichloro-3,5-difluoro-4-(trifluoromethyl)benzeneacetonitrile], and α,α′,α″-1,2,3-cyclopropanetriylidenetris[2,3,4,5,6-pentafluorobenzeneacetonitrile].

[Material HT2]

The material HT2has a lower HOMO level than the material HT1. For example, a material selected appropriately from the above compounds shown as the examples of the compound that can be used as the material HT1can be used as HT2.

[Material HOST]

The material HOST has a lower HOMO level than the material HT2.

For example, a variety of carrier-transport materials such as an electron-transport material, a hole-transport material, and the TADF material can be used as the material HOST. As specific examples of the hole-transport material, the electron-transport material, and the like, one or more kinds of materials appropriately selected from the materials described in this specification or known materials can be used.

[Light-Emitting Material EM]

For example, a substance exhibiting fluorescence (fluorescent substance), a substance exhibiting phosphorescence (phosphorescent substance), a thermally activated delayed fluorescence (TADF) material exhibiting thermally activated delayed fluorescence, or other light-emitting substances can be used as the light-emitting material EM.

[Material ET]

The material ET has a HOMO level higher than or equal to −6 eV. Moreover, the material ET has an electron mobility higher than or equal to 1×10−7cm2/Vs and lower than or equal to 5×10−5cm2/Vs when the square root of the electric field strength [V/cm] is 600. Thus, the use of the material ET for the layer114changes the carrier balance in the light-emitting device550G(i, j), whereby recombination in the layer114is less likely to occur. Controlling the carrier balance in the layer114cancels out a drastic luminance reduction caused in an initial stage of driving of a light-emitting device, that is, initial decay; thus, a long-life light-emitting device can be provided. Note that in this specification and the like, the structure of the light-emitting element including the above material ET is referred to as a Recombination-Site Tailoring Injection structure (ReSTI structure) in some cases.

For example, a compound having an anthracene skeleton can be used as the material ET, and it is further preferable that an anthracene skeleton and a heterocyclic skeleton be contained. The heterocyclic skeleton is preferably a nitrogen-containing five-membered ring skeleton. The nitrogen-containing five-membered ring skeleton particularly preferably includes two heteroatoms in a ring, like a pyrazole ring, an imidazole ring, an oxazole ring, or, a thiazole ring.

[Material OMC]

The material OMC is an organic complex of alkali metal or an organic complex of alkaline earth metal. For example, an organic complex of lithium is preferable, and 8-quinolinato-lithium (abbreviation: Liq) is particularly preferable.

Note that an anion may be generated in a layer that is on the layer114side than the layer113. Alternatively, the light-emitting device550G(i, j) may be degraded by an anion after the start of use. Alternatively, the luminance of the light-emitting device550G(i, j) may be decreased.

Thus, a decrease in display quality that would occur after the start of use can be inhibited. A decrease in color reproducibility that would occur after the start of use can be inhibited. A decrease in luminance that would occur after the start of use can be inhibited. Entry of impurities that would degrade characteristics can be inhibited. A bright color can be displayed. High productivity is achieved. As a result, a novel functional panel that is highly convenient, useful, or reliable can be provided.

<<Structure Example 4 of Light-Emitting Device550G(i, j)>>

The light-emitting device550G(i, j) includes a light-emitting unit103a, a light-emitting unit103b, and an intermediate layer104(seeFIG.25B).

The intermediate layer104includes a region sandwiched between the light-emitting unit103aand the light-emitting unit103b. The intermediate layer104supplies holes to one of the light-emitting unit103aand the light-emitting unit103band supplies electrons to the other thereof. The light-emitting unit103aand the light-emitting unit103bmay have identical structures or different structures. Note that the term “different structures” means, for example, that the light-emitting unit103acontains a fluorescent substance and the light-emitting unit103bcontains a phosphorescent substance. The term “identical structures” means, for example, that the light-emitting unit103aand the light-emitting unit103beach contain a fluorescent substance. Light emitted from the light-emitting unit103aand light emitted from the light-emitting unit103bmay have the same color or different colors. For example, when the light-emitting unit103aand the light-emitting unit103bhave a function of emitting blue light, a light-emitting element that can be driven at low voltage and has low power consumption can be achieved. Note that the light-emitting device550G(i, j) having the structure shown inFIG.25Bmay be referred to as a stacked element or a tandem element.

Accordingly, light emission efficiency can be increased. Power consumption can be reduced. As a result, a novel functional panel that is highly convenient, useful, or reliable can be provided.

Note that this embodiment can be combined with any of the other embodiments in this specification as appropriate.

In the case where there is an explicit description, X and Y are connected, in this specification and the like, for example, the case where X and Y are electrically connected, the case where X and Y are functionally connected, and the case where X and Y are directly connected are disclosed in this specification and the like. Accordingly, without being limited to a predetermined connection relationship, for example, a connection relationship shown in drawings or texts, a connection relationship other than one shown in drawings or texts is regarded as being disclosed in the drawings or the texts.

Here, X and Y each denote an object (e.g., a device, an element, a circuit, a wiring, an electrode, a terminal, a conductive film, or a layer).

Examples of the case where X and Y are directly connected include the case where an element that allows an electrical connection between X and Y (e.g., a switch, a transistor, a capacitor, an inductor, a resistor, a diode, a display element, a light-emitting element, and a load) is not connected between X and Y, and the case where X and Y are connected without the element that allows the electrical connection between X and Y (e.g., a switch, a transistor, a capacitor, an inductor, a resistor, a diode, a display element, a light-emitting element, and a load) provided therebetween.

For example, in the case where X and Y are electrically connected, one or more elements that allow an electrical connection between X and Y (e.g., a switch, a transistor, a capacitor, an inductor, a resistor, a diode, a display element, a light-emitting element, and a load) can be connected between X and Y. Note that a switch has a function of being controlled to be turned on or off. That is, a switch has a function of being in a conduction state (on state) or a non-conduction state (off state) to control whether or not current flows. Alternatively, the switch has a function of selecting and changing a current path. Note that the case where X and Y are electrically connected includes the case where X and Y are directly connected.

An example of the case where X and Y are functionally connected is the case where one or more circuits that allow functional connection between X and Y (for example, a logic circuit (an inverter, a NAND circuit, a NOR circuit, or the like), a signal converter circuit (a DA converter circuit, an AD converter circuit, a gamma correction circuit, or the like), a potential level converter circuit (a power supply circuit (for example, a step-up circuit, a step-down circuit, or the like), a level shifter circuit for changing the potential level of a signal, or the like), a voltage source, a current source, a switching circuit, an amplifier circuit (a circuit capable of increasing signal amplitude, the amount of current, or the like, an operational amplifier, a differential amplifier circuit, a source follower circuit, a buffer circuit, or the like), a signal generator circuit, a memory circuit, a control circuit, or the like) can be connected between X and Y. For example, even when another circuit is interposed between X and Y, X and Y are functionally connected when a signal output from X is transmitted to Y. Note that the case where X and Y are functionally connected includes the case where X and Y are directly connected and the case where X and Y are electrically connected.

Note that in the case where there is an explicit description, X and Y are electrically connected, the case where X and Y are electrically connected (i.e., the case where X and Y are connected with another element or another circuit provided therebetween), the case where X and Y are functionally connected (i.e., the case where X and Y are functionally connected with another circuit provided therebetween), and the case where X and Y are directly connected (i.e., the case where X and Y are connected without another element or another circuit provided therebetween) are disclosed in this specification and the like. That is, in the case where there is an explicit description, being electrically connected, the same contents as the case where there is only an explicit description, being connected, are disclosed in this specification and the like.

Note that, for example, the case where a source (or a first terminal or the like) of a transistor is electrically connected to X through (or not through) Z1 and a drain (or a second terminal or the like) of the transistor is electrically connected to Y through (or not through) Z2, or the case where a source (or a first terminal or the like) of a transistor is directly connected to one part of Z1 and another part of Z1 is directly connected to X while a drain (or a second terminal or the like) of the transistor is directly connected to one part of Z2 and another part of Z2 is directly connected to Y can be expressed as follows.

It can be expressed as, for example, “X, Y, a source (or a first terminal or the like) of a transistor, and a drain (or a second terminal or the like) of the transistor are electrically connected to each other, and X, the source (or the first terminal or the like) of the transistor, the drain (or the second terminal or the like) of the transistor, and Y are electrically connected to each other in this order”. Alternatively, the expression “a source (or a first terminal or the like) of a transistor is electrically connected to X, a drain (or a second terminal or the like) of the transistor is electrically connected to Y, and X, the source (or the first terminal or the like) of the transistor, the drain (or the second terminal or the like) of the transistor, and Y are electrically connected to each other in this order” can be used. Alternatively, the expression “X is electrically connected to Y through a source (or a first terminal or the like) and a drain (or a second terminal or the like) of a transistor, and X, the source (or the first terminal or the like) of the transistor, the drain (or the second terminal or the like) of the transistor, and Y are provided in this connection order” can be used. When the connection order in a circuit structure is defined by an expression similar to the above examples, a source (or a first terminal or the like) and a drain (or a second terminal or the like) of a transistor can be distinguished from each other to specify the technical scope.

Other examples of the expressions include, “a source (or a first terminal or the like) of a transistor is electrically connected to X through at least a first connection path, the first connection path does not include a second connection path, the second connection path is a path through the transistor and between the source (or the first terminal or the like) of the transistor and a drain (or a second terminal or the like) of the transistor, the first connection path is a path through Z1, the drain (or the second terminal or the like) of the transistor is electrically connected to Y through at least a third connection path, the third connection path does not include the second connection path, and the third connection path is a path through Z2” and “a source (or a first terminal or the like) of a transistor is electrically connected to X through Z1 by at least a first connection path, the first connection path does not include a second connection path, the second connection path includes a connection path through the transistor, a drain (or a second terminal or the like) of the transistor is electrically connected to Y through Z2 by at least a third connection path, and the third connection path does not include the second connection path”. Alternatively, the expression “a source (or a first terminal or the like) of a transistor is electrically connected to X by at least a first electrical path through Z1, the first electrical path does not include a second electrical path, the second electrical path is an electrical path from the source (or the first terminal or the like) of the transistor to a drain (or a second terminal or the like) of the transistor, the drain (or the second terminal or the like) of the transistor is electrically connected to Y by at least a third electrical path through Z2, the third electrical path does not include a fourth electrical path, and the fourth electrical path is an electrical path from the drain (or the second terminal or the like) of the transistor to the source (or the first terminal or the like) of the transistor” can be used. When the connection path in a circuit structure is defined by an expression similar to the above examples, a source (or a first terminal or the like) and a drain (or a second terminal or the like) of a transistor can be distinguished from each other to specify the technical scope.

Note that these expressions are examples and the expression is not limited to these expressions. Here, X, Y, Z1, and Z2 denote an object (e.g., a device, an element, a circuit, a wiring, an electrode, a terminal, a conductive film, and a layer).

Even when independent components are electrically connected to each other in a circuit diagram, one component has functions of a plurality of components in some cases. For example, when part of a wiring also functions as an electrode, one conductive film has functions of both components: a function of the wiring and a function of the electrode. Thus, “electrical connection” in this specification includes in its category such a case where one conductive film has functions of a plurality of components.

REFERENCE NUMERALS

ANO: conductive film, C21: capacitor, C31: capacitor, CI: control data, CL: conductive film, CP: conductive material, DS: sensing data, FD: node, G1: conductive film, G2: conductive film, GCLK: signal, II: input data, IN: terminal, MD: transistor, M21: transistor, M31: transistor, M32: transistor, N21: node, OUT: terminal, P1: position data, PD(i, j): photoelectric conversion device, PWC1: signal, PWC2: signal, RS: conductive film, S1g: conductive film, S2g: conductive film, SE: conductive film, SH: region, SW1: switch, SW21: switch, SW22: switch, SW31: switch, SW32: switch, SW33: switch, TX: conductive film, VCOM2: conductive film, VCP: conductive film, VI: image data, VIV: conductive film, VLEN: conductive film, VPD: conductive film, VPI: conductive film, VR: conductive film, WX: conductive film, FPC1: flexible printed circuit,200: data processing device,210: arithmetic device,211: arithmetic portion,212: memory portion,213: artificial intelligence portion,214: transmission path,215: input/output interface,220: input/output device,230: display portion,231: region,233: control circuit,234: decompression circuit,235: image processing circuit,238: control portion,240: input portion,241: sensing region,248: control portion,250: sensing portion,290: communication portion,501C: insulating film,501D: insulating film,504: conductive film,506: insulating film,508: semiconductor film,508A: region,508B: region,508C: region,510: base material,512A: conductive film,512B: conductive film,516: insulating film,518: insulating film,519B: terminal,520: functional layer,521: insulating film,524: conductive film,528: insulating film,528H: opening portion,530G: pixel circuit,530S: pixel circuit,550G: light-emitting device,551G: electrode,551S: electrode,552: electrode,553G: layer containing light-emitting material,553S: layer containing photoelectric conversion material,573: insulating film,573A: insulating film,573B: insulating film,591G: opening portion,591S: opening portion,700: functional panel,700TP: input/output panel,702B: pixel,702G: pixel,702R: pixel,702S: pixel,703: pixel,705: sealant,720: functional layer,770: base material,770P: functional film,771: insulating film,802: sensor,5200B: data processing device,5210: arithmetic device,5220: input/output device,5230: display portion,5240: input portion,5250: sensing portion,5290: communication portion