Patent Description:
With developments of electronic devices such as smart phones and tablet computers, a high screen-to-body ratio has become a popular demand. For example, the screen-to-body ratio may be increased in manners of a full screen, a curved screen and a surround screen. However, the increase in the display screen of the electronic device inevitably reduces the layout space of other components, such as cameras and sensors. Therefore, there is still a need for research with regard to setting cameras, sensors, etc. in the area where the display screen is located, and reducing the interference of the display screen itself to the components such as cameras and sensors. <CIT>, <CIT>, <CIT>, <CIT> constitute prior art useful for understanding the invention.

The present invention provides a display assembly according to claim <NUM> and a manufacturing method thereof according to claim <NUM>, as well as an electronic device according to claim <NUM>.

According to a first aspect of the invention, there is provided a display assembly, the display assembly includes: a pixel array including a plurality of pixel units; a photosensitive array including a plurality of photosensitive units; at least one of the photosensitive units is disposed in a gap between two adjacent pixel units of the pixel array to detect ambient light.

In some embodiments, the pixel units and the photosensitive array are disposed at a same height level.

In some embodiments, an area of one photosensitive unit is less than or equal to an area of one pixel unit.

According to the invention, the display assembly also includes: a photosensitive processing circuit distributed below the photosensitive array along the gap between the plurality of pixel units in the pixel array, connected to the photosensitive array, and configured to process a first electric signal obtained through sensing the ambient light by the photosensitive array to obtain a second electric signal.

In some embodiments, the pixel array includes: a first area including a plurality of first pixel units separated by a first gap between adjacent first pixel units; and a second area including a plurality of second pixel units separated by a second gap between adjacent second pixel units, in which the first gap between the adjacent first pixel units in the first area is greater than the second gap between the adjacent second pixel units in the second area; and in which the photosensitive array is located in the first gap in the first area.

In some embodiments, the first area is located at one or more edges of the pixel array, and includes: an area where at least two adjacent rows of pixel units are located, or an area where at least two adjacent columns of pixel units are located; in which the photosensitive array is located between any two adjacent rows or columns of pixel units in the first area, and a length of the photosensitive array is consistent with a length of the first area.

In some embodiments, a ratio of the first gap in the first area to the second gap in the second area is in a range of <NUM> to <NUM>.

In some embodiments, the display assembly also includes: a transparent cover plate covering the pixel array and the photosensitive array and having a light transmission direction and a light shielding direction. The light transmission direction is pointed from the transparent cover plate to the photosensitive array, and the light shielding direction is along a connection direction of two adjacent pixel units.

In some embodiments, the transparent cover plate is a glass cover plate having a light-guiding hole.

In some embodiments, a thickness of the transparent cover plate is less than a thickness threshold. The thickness threshold is a thickness corresponding to a minimum photosensitive angle of the photosensitive array, in which the photosensitive angle of the photosensitive array is an arctangent value of a ratio of half a width of the photosensitive array to the thickness of the transparent cover plate.

In some embodiments, the minimum photosensitive angle is a photosensitive angle when a photosensitive power intensity of the photosensitive array is half of a maximum power intensity.

According to a second aspect of the invention, a method for manufacturing a display assembly includes: forming a pixel array comprising a plurality of pixel units; providing a photosensitive unit in a gap between two adjacent pixel units to form a photosensitive array comprising a plurality of photosensitive units.

According to the invention, the method also includes: forming a photosensitive processing circuit below the photosensitive array along the gap between the plurality of pixel units in the pixel array; connecting the photosensitive processing circuit with the photosensitive array.

In some embodiments, the method also includes: covering the pixel array and the photosensitive array with a transparent cover plate, in which the transparent cover plate above the photosensitive array has a light transmission direction and a light shielding direction, the light transmission direction is a direction from the transparent cover plate to the photosensitive array, the light shielding direction is a connection direction of two adjacent pixel units.

According to a third aspect of the invention, an electronic device includes a housing; a power supply assembly and a processing assembly located inside the housing; and the display assembly as described above, covering at least one surface of the housing.

The technical solutions provided by the embodiments of the present invention may include the following advantageous effects. With the technical solutions of the embodiments of the present disclosure, the photosensitive array formed by the photosensitive units is disposed in the gap of the pixel array of the display screen, such that the photosensitive unit may directly detect the ambient light emitted from the outside of the display screen. Moreover, since the photosensitive array is disposed in the gap of among the pixel units, compared with the photosensitive sensor disposed below the screen, the interference of the light emission of the pixel unit to the photosensitive unit may be reduced, thereby improving the accuracy of detection. At the same time, compared with arrangements of providing the photosensitive array in a frame area of the display screen or a frame area of the electronic device which is even outside the display screen, the arrangement of the present disclosure will not reduce the size of the display area, which is beneficial to the design of the full screen. Moreover, the photosensitive array may be disposed in any position of the gap of the pixel array, and thus a larger area of the display screen may be used as the photosensitive area of the photosensitive array to improve the photosensitive efficiency.

It is to be understood that both the foregoing general description and the following detailed description are explanatory only and shall not be construed to limit the present disclosure.

The implementations set forth in the following description of embodiments do not represent all implementations consistent with the present disclosure.

<FIG> is a schematic view illustrating a display assembly according to an embodiment. Referring to <FIG>, the display assembly <NUM> includes: a pixel array <NUM> including a plurality of pixel units <NUM>; a photosensitive array <NUM> including a plurality of photosensitive units <NUM>; at least one of the photosensitive units <NUM> is disposed in a gap between two adjacent pixel units <NUM> of the pixel array <NUM> to detect ambient light which passes through the pixel array. For example, as shown in <FIG>, some photosensitive units <NUM> are inserted between two adjacent rows of pixel units <NUM> of the pixel array <NUM>, to form the photosensitive array <NUM> disposed in the gap of the pixel array <NUM>.

In embodiments of the present disclosure, the display assembly may be used for a display function of various electronic devices, such as LCD (liquid crystal display) and OLED (organic light emitting diode) display screens. The display assembly may emit light from each position of the pixel units in the pixel array with different intensity to outside of the display assembly to realize image display.

According to the invention, the photosensitive array including a plurality of photosensitive units is configured to detect ambient light. The photosensitive unit may include a photosensitive sensor, a photodiode, or other type of sensor that is configured to convert a received light signal into an electric signal, such that the light intensity may be detected according to the intensity of the electric signal.

Since the display assembly is a light emitting assembly, it is desired to reduce the influence of the light emitting of the display assembly itself during the detection process of the photosensitive unit. According to the claimed invention, the photosensitive array is disposed in the gap of the pixel units. In this way, the pixel unit and the photosensitive array are disposed at the same height level where the pixel units emit light to the outside of the display assembly, and the photosensitive array receives light to the inside of the display assembly. Therefore, the photosensitive unit may receive less or no light emitted by the pixel unit, and thus the detection accuracy may be improved.

An area of a single photosensitive unit may be less than or equal to an area of the pixel unit, in this way, the photosensitive unit is disposed or positioned in the gap of the pixel unit, which is not easily perceived by human vision and reduces the influence on the display effect. At the same time, since the photosensitive array is composed of a plurality of photosensitive units, the total photosensitive area is larger, thus having a higher detection efficiency. For example, for an LCD, light is emitted by a backlight module toward the pixel unit, and inclination (i.e., a pretilt angle) of the liquid crystal is adjusted by an electric field of the pixel unit, to realize brightness adjustment of a position where the pixel unit is located, thereby realizing the display function. In the gap between adjacent pixel units of the LCD, there are black light-shielding matrices and metal traces for isolating pixels. The light emitted by the LCD backlight module may be shielded by the gap positions of the pixel units, such that the above-mentioned photosensitive array may be arranged at these positions. In this way, the light emitted by the backlight module will not be received by the photosensitive array, thereby reducing the influence of the light emitted by the display assembly itself on the ambient light detection.

For an OLED, the pixel unit is composed of organic light emitting diodes, which has a self-luminous ability, and thus OLED does not need a backlight module. The photosensitive units may also be distributed in the gaps of the pixel units to detect the ambient light emitted from the outside and toward the display assembly. The pixel unit emits light toward the outside of the display assembly, such that the interference of the light emission of the pixel unit on the photosensitive unit may be reduced as possible.

In the embodiments of the present disclosure, the photosensitive units are concentrated in an area to form a continuous photosensitive array; or several sets of consecutive photosensitive arrays are formed in different areas at different positions of the display assembly (such as an area near the upper or lower border of the display assembly). In this way, a larger light sensing area may be obtained to improve the sensitivity of light sensing and the detection efficiency. For example, the photosensitive units are distributed in the gap between two rows of display pixels to form a photosensitive array. It is also possible to arrange the photosensitive units in different gaps between adjacent pixel units, such that the photosensitive array is distributed among the pixel array. In this way, the pixel units and the photosensitive units in the display assembly may be arranged alternately and uniformly, thereby increasing the total photosensitive area of the photosensitive array and reducing the influence of the photosensitive units on the display effect of the pixel array.

With the above-mentioned solutions according to the embodiments of the present disclosure, at least one of the photosensitive units is inserted between adjacent pixel units of the pixel array, such that the pixel unit and the photosensitive unit are located within the same height level. In this way, compared with disposing the photosensitive array below the display assembly as a whole, the influence of the display assembly itself on the detection of the ambient light may be reduced, and the accuracy of the detection may be improved; at the same time, it is also beneficial to increase the photosensitive area of the photosensitive array to improve the detection efficiency.

According to the claimed invention, the display assembly also includes: a photosensitive processing circuit distributed below the photosensitive array along the gap between the plurality of pixel units in the pixel array, connected to the photosensitive array, and configured to process a first electric signal obtained through sensing the ambient light by the photosensitive array to obtain a second electric signal.

It should be understood that the electric signal generated by light sensing is relatively weak, and if it is transmitted to the processing circuit through a long-distance wire, a large signal loss will occur, thus hardly detecting an accurate electric signal. Therefore, in the embodiment of the present disclosure, the photosensitive processing circuit is also arranged in the gap of the pixel unit, and stacked below the photosensitive array, and directly connected to the photosensitive array. In this way, the first electric signal obtained by the photosensitive array according to the light signal convection may be directly transmitted to the photosensitive processing circuit, followed by being processed to obtain the second electric signal. In this way, the signal loss caused by wire transmission may be reduced to improve the detection accuracy.

In one or more embodiments, the photosensitive processing circuit at least includes: a signal amplifier unit for amplifying the first electric signal to obtain the second electric signal. In this way, the relatively weak first electric signal detected by the photosensitive array may be amplified to obtain the second electric signal that is suitable for transmission and processing. The second electric signal may be transmitted to an external processing chip or processor through wires distributed at the display assembly, and then processed by the processing chip or processor to obtain ambient light brightness data.

In another embodiment, the photosensitive processing circuit includes: a signal operation circuit for converting the first electric signal into a second electric signal corresponding to a data value of a photosensitive intensity. For example, an analog to digital conversion circuit is used to convert the first electric signal into the second electric signal corresponding to the level value. In this way, the second electric signal is transmitted to the external processing chip or processor through the wires distributed at the display assembly. The processing chip or processor may directly determine the corresponding brightness level according to the received value, thereby acquiring detected ambient light brightness data.

In some embodiments, referring to <FIG>, the pixel array <NUM> includes: a first area <NUM> including a plurality of first pixel units separated by a first gap between adjacent first pixel units and a second area <NUM> including a plurality of second pixel units separated by a second gap between adjacent second pixel units. The first gap between the adjacent first pixel units in the first area <NUM> is greater than the second gap between the adjacent second pixel units in the second area <NUM>; and the photosensitive array <NUM> is located in the first gap between the pixel units in the first area <NUM>.

In the embodiments of the present disclosure, the gaps between adjacent pixel units in different areas of the pixel array may be different. The photosensitive array is arranged in the first area with a large pixel unit gap, such that the photosensitive array have enough accommodating space, thereby increasing the photosensitive area of the photosensitive array to improve the detection effect.

For example, the first area includes: two adjacent rows of pixel units, and the gap between the two rows of pixel units is larger than the gap between any other two adjacent rows of pixel units. In this way, the photosensitive array may be inserted between the two rows of pixel units in the first area.

In some embodiments of the present disclosure, a ratio of the gap between the pixel units in the first area to the gap between the pixel units in the second area is in a range of <NUM> to <NUM>.

It should be understood that sizes of each pixel unit and the gap are difficult to be perceived with the human vision. For example, the ratio of an interval (i.e., the gap) between two adjacent pixel units in the first area to an interval (i.e., the gap) between two adjacent pixel units in the second area is in a range of <NUM> to <NUM>.

The above-mentioned gap between the pixel units in the first area or the second area may also be determined according to the resolution requirement of the display assembly and the size of the photosensitive unit device. For example, for a display assembly with a high resolution, the gap between the pixel units in the second area is small, thus hardly disposing the photosensitive array. Therefore, the gap between the pixel units in the first area is greater than the gap between the pixel units in the second area. For example, the interval between two adjacent pixel units in the first area is twice the interval between two adjacent pixel units in the second area. Since the resolution of the display assembly is high, and the gap between the pixel units is small, even if the pixel interval in the first area reaches twice, it is still not easy to be perceived by human vision.

If the resolution of the display assembly is low, the interval of the pixel unit is large, and there is a large space to accommodate the photosensitive array. Therefore, the ratio of the interval of the pixel units in the first area to the interval of the pixel units in the second area of <NUM> to <NUM> is enough to arrange the photosensitive array. Meanwhile, since the interval is not increased too much, it is not easy to be perceived by the human vision, thus reducing the influence on the display effect.

In this way, a partial area of the display assembly may be used to arrange the photosensitive array with a sufficient area, such that it has a better photosensitive effect compared with a photosensitive sensor disposed outside the display assembly or a photosensitive chip disposed below the screen.

In some embodiments, the first area is located at one or more edges of the pixel array, and includes an area where at least two adjacent rows of pixel units are located, or an area where at least two adjacent columns of pixel units are located; the photosensitive array is located in a gap between any two adjacent rows or columns of pixel units in the first area, and the length of the photosensitive array is consistent with the length of the first area.

In the embodiment of the present disclosure, the above-mentioned first area may be an area close to the edge of the display assembly, that is, one or more edges of the above-mentioned pixel array. For example, the first n rows of pixel units at the top of the pixel array belong to the first area, the gap between the pixel units in the first area is x, and the pixel units from the (n+<NUM>)th row to the last row belong to the second area, the gap between the pixel units in the second area is y, then x is greater than y. A photosensitive array is arranged in the gap with a width x in the first area.

In the embodiment of the present disclosure, the length of the photosensitive array is consistent with the length of the first area, that is, the area where the pixel units with the widened gap is fully utilized. In this way, the widened gap in a whole row or column of the pixel units is convenient for design and manufacture, and at the same time may facilitate the layout of the internal wiring. Meanwhile, since the first area is located at the edge area of the pixel array, the influence on resolution of the display image may be reduced, and a better display effect may be achieved on the basis of providing sufficient photosensitive area for the photosensitive array.

In some embodiments, the display assembly also includes: a transparent cover plate covering the pixel array and the photosensitive array and having a light transmission direction and a light shielding direction. The light transmission direction is a direction from the transparent cover plate to the photosensitive array, and the light shielding direction is a connection direction of two adjacent pixel units.

In the embodiments of the present disclosure, the transparent cover plate is used as a protective layer above the pixel array and the photosensitive array of the display assembly. The transparent cover plate is made of a light-transmitting material, such as a glass cover plate made of glass or a plastic cover plate made of transparent plastic. A light guide direction of the transparent cover plate is perpendicular to the display surface of the display assembly, that is, the light may propagate in the direction from inner side to outer side or from outer side to inter side of the transparent cover plate, but not in the direction parallel to the display assembly. In this way, the photosensitive array may receive the ambient light emitted from the outside of the transparent cover plate to the inside of the display assembly along the light transmission direction of the transparent cover plate, thereby receiving less light in the shielding direction, that is, in the direction parallel to the display surface of the display assembly. Therefore, the interference happened in the case where the light enters in the photosensitive array due to multiple reflections of the light in the transparent cover is reduced.

In one embodiment, the transparent cover plate is made of a transparent material with directional light-guiding properties. For example, a glass cover plate has a light-guiding hole in a direction perpendicular to the display surface.

In some embodiments, a thickness of the transparent cover is less than a thickness threshold. The thickness threshold is a thickness corresponding to a minimum photosensitive angle of the photosensitive array, and the photosensitive angle of the photosensitive array is an arctangent value of a ratio of half a width of the photosensitive array to the thickness of the transparent cover plate.

Since the refraction phenomenon of the light may occur in the transparent cover plate, there will be an energy lose when the ambient light enters the photosensitive array. Therefore, in the embodiment of the present disclosure, the thickness of the transparent cover plate is determined according to the photosensitive angle of the photosensitive array. For example, if the photosensitive angle is greater than <NUM>°, and the width of the photosensitive array or photosensitive unit is w, then the thickness h of the transparent cover plate satisfies arctan(w/<NUM>)><NUM>°.

In this way, the ambient light intensity may be less weakened by the transparent cover plate, such that more light enters the photosensitive array, thus improving the detection efficiency of the photosensitive array.

It could be understood that the intensity of the photosensitive power of the photosensitive array represents the quantity of the light sensed by the photosensitive array. Within sensing surface of the photosensitive array or photosensitive unit, the light which has a direction closer to the direction perpendicular to the photosensitive surface has a greater photosensitive power intensity, and the light which has a direction closer to the direction parallel to the photosensitive surface has a smaller photosensitive power intensity. That is, within the photosensitive view of the photosensitive array, the angle is small, but the photosensitive intensity is high.

Therefore, in the embodiment of the present disclosure, the photosensitive angle corresponding to half of the maximum power intensity is used as the minimum photosensitive angle. In this way, during determining the thickness of the transparent cover plate, the photosensitive angle is not less than the angle corresponding to half of the maximum power intensity, such that a part with higher light power may be used as the photosensitive angle, and at least the light within the minimum photosensitive angle is able to enter the photosensitive array. In practical applications, the minimum photosensitive angle may also be determined according to practical needs.

In one embodiment, the above-mentioned photosensitive array may include the photosensitive units with multiple photosensitive wavelengths, which are arranged alternately. For example, filter films of different colors (such as RGBC, red, green, blue and full-wave bands) are coated on the photodiode to form the photosensitive units with different wavelengths. In this way, data processing and analyzing may be improved, and at the same time, it is easy to filter out the light signals in the bands which may cause signal interference.

Referring to <FIG>, the claimed invention also provides a method for manufacturing a display assembly, and the method includes: in block <NUM>, forming a pixel array including a plurality of pixel units; in block <NUM>, providing a photosensitive unit in a gap between two adjacent pixel units to form a photosensitive array including a plurality of photosensitive units.

In the embodiment of the present disclosure, during the manufacture of the display assembly, the process of forming the pixel array may include coating a film layer of different material on a substrate to form the pixel units. For example, an organic light emitting material may be coated to form an organic light emitting diode, and a metal material may be coated to form wires to connect the OLED with a peripheral circuit. In practical applications, the process of forming the pixel array may include coating, chemical or physical vapor deposition to form the film, forming a patterned film layer by photolithography, and forming a final pixel array by stacking a plurality of patterned film layers.

After the pixel array is formed, the display assembly has the basic components of the display function. In the embodiments of the present disclosure, the photosensitive units are disposed in the gap of at least some of the pixel units to form the above-mentioned photosensitive array. The way of forming the photosensitive array may be similar to the way of forming the pixel array. In practical applications, the positions and graphics of the pixel array and the photosensitive array are designed in advance to form a complete layout. Therefore, during the manufacturing process, the order of the formation of the layers may be adjusted according to practical needs. For example, the pixel array may be formed first and then the photosensitive array is formed, and vice versa. For another example, the organic light emitting material may be coated and photo-etched first on the substrate to form the basic elements of OLED, and the photosensitive material may be coated to form the basic photosensitive element; then, multiple layers of conductive materials such as metals are used to form control circuits and wires of the photosensitive element and the light-emitting diode, which may be connected to the external circuit. It is also possible to use the conductive material to form a circuit first, and then the OLED and the photosensitive element are formed on the film layer where the circuit is. In conclusion, the sequence of the operations of the specific production process may be adjusted according to practical needs.

According to the claimed invention, the method also includes: forming a photosensitive processing circuit below the photosensitive array along the gap between the plurality of pixel units in the pixel array; and connecting the photosensitive processing circuit with the photosensitive array.

In the embodiment of the present disclosure, the photosensitive processing circuit is formed below the photosensitive array to process an electric signal converted from the light signal by the photosensitive array. The photosensitive array converts the light signal into the electric signal through the photodiode, and the electric signal obtained is relatively weak. Therefore, if it is transmitted over a long distance, most of the signal energy will be lost, resulting in a very week signal strength of the signal finally detected or even failure in detecting the signal.

Therefore, in the embodiments of the present disclosure, the photosensitive processing circuit is directly formed below the photosensitive array and connected to the photosensitive array. In this way, the electric signal detected by the photosensitive array may directly reach the photosensitive processing circuit within a short distance, thereby reducing the signal energy loss caused by the transmission of the wire, thus improving the accuracy of detection.

The above-mentioned photosensitive processing circuit at least includes: a signal amplifying component configured to amplify the first light signal detected by the photosensitive array to obtain a second light signal, and transmit the second light signal to an external circuit or chip. Since the second light signal is an amplified signal, original waveform of this signal may be maintained after a long distance transmission, which is suitable for subsequent signal detection and analysis processing.

In the manufacturing process, the photosensitive processing circuit may be formed on the substrate before the photosensitive array is formed, and then the photosensitive array may be formed by the processes such as film forming and photolithography described in the above-mentioned embodiments, such that the photosensitive array may be the upper layer on the photosensitive processing circuit. In this way, the photosensitive processing circuit neither occupies the photosensitive area of the photosensitive array, nor occupies the display area of the pixel array. If the gap of the pixel array is large and the photosensitive area of the photosensitive array is sufficient, it is also possible to form the photosensitive processing circuit beside the photosensitive array.

In some embodiments, the method also includes: covering the pixel array and the photosensitive array with a transparent cover plate; in which the transparent cover plate above the photosensitive array has a light transmission direction and a light shielding direction, the light transmission direction is a direction from the transparent cover plate to the photosensitive array, the light shielding direction is a connection direction of two adjacent pixel units.

In the embodiments of the present disclosure, after the pixel array and the photosensitive array are completed, basic display and ambient light detection functions may be realized. However, since the components on the display assembly are exposed in the air, they are easily damaged and cannot be used normally. Therefore, the pixel array and the photosensitive array may be covered with the transparent cover plate for protecting the components.

Referring to <FIG>, an embodiment of the present disclosure further provides an electronic device <NUM>, including a housing <NUM>; a power supply assembly <NUM> and a processing assembly <NUM> located inside the housing <NUM>; and the display assembly <NUM> as described above, which covers at least one surface of the housing <NUM>.

In the embodiments of the present disclosure, the above-mentioned electronic device may be any device with a display function, and at the same time, the electronic device also needs to detect ambient light. For example, the electronic device may be a mobile phone, a tablet computer, a smart wearable device or any electronic device having different modes, such as a night mode and a day mode, which are distinguished according to brightness of the ambient light.

Embodiments are made to describe the present disclosure as follows.

In the embodiments of the present disclosure, in order to realize ambient light detection in the area where the display screen is located, a slot of x micrometers wide is formed in the pixel area inside the display screen, which is used to arrange an integrated circuit for the ambient light detection.

The photodiode array is arranged in the slot between the pixels in the LCD or OLED display screen, such a slot may not be provided with the pixel units and the driving circuit of the pixel.

As shown in the electronic device <NUM> of <FIG>, in the area of the pixel array <NUM> of the display screen, a photosensitive area <NUM> having a length L and a width W is provided, and no pixel unit is provided in this area <NUM>. The photodiode (PD) array is disposed in the photosensitive area <NUM> to form the photosensitive area with a length L and a width W. In addition, the photosensitive processing circuit may be disposed at the photosensitive area <NUM>, below the PD array, and connected to the PD array. In this way, the electric signal converted from the light signal by the PD array may be directly processed, for example be amplified, then transmitted to a processor or register, and finally read by a processing chip, thus calculating a light intensity value.

The outermost layer of the display screen is a transparent cover plate made of glass or plastic. The transparent cover plate above the PD array may only allow the light transmission in the direction perpendicular to the display surface of the display screen, but not allow the light transmission in the direction parallel to the display surface. In this way, laterally transmitted light formed by reflections of the ambient light and the light emitting by the pixel inside the transparent cover plate may be shielded, such that most of the light received by the PD array comes from the ambient light, that is, the interference of the reflected light and the light emitting by the pixel on the PD array is reduced.

Since the photosensitive unit (photodiode) in the PD array needs a sufficient photosensitive view angle to perform relatively accurate detection, in the embodiment of the present disclosure, a transparent cover plate is required to meet the requirement of a thickness h. The thickness h is determined by the photosensitive angle of the photosensitive unit. For example, <FIG> shows a photosensitive intensity of the photosensitive unit in the plane of the photosensitive surface at x-axis or y-axis which is mutually perpendicular to each other. A point of about <NUM>° is half of the maximum optical power, and thus <NUM>° may be determined as the angle of the half power. The thickness of the transparent cover plate needs to satisfy that the photosensitive angle of the photosensitive unit is greater than the angle of the half power, i.e., arctan(w/<NUM>) should be greater than <NUM>°. In other words, the thickness h of the transparent cover plate needs to be less than a thickness corresponding to <NUM>°. In this way, it is possible to make the photosensitive unit have a sufficient photosensitive angle to effectively detect the brightness of the ambient light.

In addition, the PD array may include photosensitive arrays with different colors formed by filter films with different wavelengths, to realize the detection of different spectra and facilitate the calculation of color temperature and light intensity.

Regarding the device in the above-mentioned embodiments, the specific manners in which each element performs operations have been described in detail in the embodiments of the method, and thus will not be described here again.

<FIG> is a block diagram showing an electronic device <NUM> according to an embodiment. For example, the electronic device <NUM> may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, exercise equipment, a personal digital assistant, and the like.

The audio component <NUM> is configured to output and/or input audio signals. For example, the audio component <NUM> includes a microphone ("MIC") configured to receive an external audio signal when the device <NUM> is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in the memory <NUM> or transmitted via the communication component <NUM>. In some embodiments, the audio component <NUM> further includes a speaker to output audio signals.

The communication component <NUM> is configured to facilitate communication, wired or wirelessly, between the device <NUM> and other devices. The device <NUM> can access a wireless network based on a communication standard, such as WiFi, <NUM>, <NUM>, <NUM> or <NUM>, or a combination thereof. In one embodiment, the communication component <NUM> receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In one embodiment, the communication component <NUM> further includes a near field communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on a radio frequency identification (RFID) technology, an infrared data association (IrDA) technology, an ultra-wideband (UWB) technology, a Bluetooth (BT) technology, and other technologies.

In embodiments, the device <NUM> may be implemented with one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components, for performing the above described methods.

In embodiments, there is also provided a non-transitory computer-readable storage medium including instructions, such as included in the memory <NUM>, executable by the processor <NUM> in the device <NUM>, for performing the above-described methods. For example, the non-transitory computer-readable storage medium may be a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disc, an optical data storage device, and the like.

The example of the present disclosure also provides a non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by a processor of the mobile terminal, such that the mobile terminal can execute the method provided in any of the foregoing embodiments.

Claim 1:
A display assembly (<NUM>), comprising:
a pixel array (<NUM>) comprising a plurality of pixel units (<NUM>) configured to emit light to realize image display;
a photosensitive array (<NUM>) comprising a plurality of photosensitive units (<NUM>),
wherein at least one of the photosensitive units (<NUM>) is disposed in a gap between two adjacent pixel units (<NUM>) of the pixel array (<NUM>) to detect ambient light;
a photosensitive processing circuit characterized in that the photosensitive processing circuit is distributed below the photosensitive array (<NUM>) along the gap between the plurality of pixel units (<NUM>) in the pixel array (<NUM>), connected to the photosensitive array (<NUM>), and configured to process a first electric signal obtained through sensing the ambient light by the photosensitive array (<NUM>) to obtain a second electric signal.