Patent Publication Number: US-2023140126-A1

Title: Electro-optical device and electronic apparatus

Description:
BACKGROUND 
     The present application is based on, and claims priority from JP Application Serial Number 2021-176211, filed Oct. 28, 2021, the disclosure of which is hereby incorporated by reference herein in its entirety. 
     1. Technical Field 
     The present disclosure relates to an electro-optical device and an electronic apparatus. 
     2. Related Art 
     In an electro-optical device using, for example, an OLED as a light-emitting element, a technology in which a coloring layer that transmits light in a predetermined wavelength range, that is, a color filter, is provided on a sealing layer that covers a light-emitting element in order to realize color display is known. “OLED” is an abbreviation for “organic light-emitting diode”. In such an electro-optical device, a color of one dot is represented by pixel portions corresponding to a plurality of colors, typically a red pixel portion, a green pixel portion, and a blue pixel portion. 
     An area of each of a light-emitting region in the red pixel portion, a light-emitting region in the green pixel portion, and a light-emitting region in the blue pixel portion is often determined in consideration of light emission efficiency, visibility, life of a light-emitting layer, and the like. 
     For example, in a technology described in JP-A-2019-117941, a configuration in which a red light-emitting region is assigned to one of four octagonal regions arranged in two rows and two columns to express a color of one dot, a green light-emitting region is assigned to another, and a blue light-emitting region is assigned to the remaining two is described. Specifically, in the two-row and two-column array, two blue light-emitting regions are assigned to diagonal positions, and the red light-emitting region and the green light-emitting region are assigned to the remaining two positions. 
     When a distance between adjacent coloring layers in such an arrangement is different, a color change increases in accordance with a viewing angle, and thus, in the technology described in JP-A-2019-117941, a contact region is provided at a position overlapping an intersection point between boundary lines that separate the light-emitting regions in plan view. As a result, a distance between the light-emitting regions becomes almost uniform, and the color change due to the viewing angle is suppressed. 
     However, in the technology described in JP-A-2019-117941, the color change due to the viewing angle in a row or column direction is suppressed, but the light-emitting regions of the same color and the coloring layers of the same color are continuous in an oblique direction. Therefore, in the technology described in JP-A-2019-117941, there is a problem that a degree of color change is different in the row (transverse) or column (longitudinal) direction and in the oblique direction. 
     SUMMARY 
     An electro-optical device according to an aspect of the present disclosure includes, in plan view, a first light-emitting region configured to emit light in a first wavelength range, a first coloring layer configured to transmit the light in the first wavelength range, a second light-emitting region disposed adjacent to the first light-emitting region in a first direction and configured to emit light in a second wavelength range, a second coloring layer provided overlapping the second light-emitting region and configured to transmit the light in the second wavelength range, a third light-emitting region disposed adjacent to the second light-emitting region in a second direction and configured to emit light in a third wavelength range, a third coloring layer provided overlapping the third light-emitting region and configured to transmit the light in the third wavelength range, a fourth light-emitting region disposed adjacent to the second light-emitting region in a third direction intersecting the first direction and the second direction and configured to emit the light in the second wavelength range, and a fourth coloring layer provided overlapping the fourth light-emitting region and configured to transmit the light in the second wavelength range, wherein the first coloring layer includes a first region that overlaps the first light-emitting region in plan view, and a second region located between the second light-emitting region and the fourth light-emitting region in plan view. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a view illustrating a configuration of an electro-optical device according to an embodiment. 
         FIG.  2    is a block diagram illustrating an electrical configuration of the electro-optical device. 
         FIG.  3    is a circuit diagram illustrating a pixel portion in the electro-optical device. 
         FIG.  4    is a timing chart illustrating an operation of the electro-optical device. 
         FIG.  5    is a plan view illustrating an arrangement of a pixel portion in the electro-optical device. 
         FIG.  6    is a plan view illustrating a pixel electrode in the electro-optical device. 
         FIG.  7    is a plan view illustrating an arrangement of a coloring layer in the electro-optical device. 
         FIG.  8    is a plan view illustrating a region of the coloring layer. 
         FIG.  9    is a cross-sectional view of a main portion of the pixel portion. 
         FIG.  10    is a cross-sectional view of a main portion of the pixel portion. 
         FIG.  11    is a cross-sectional view of a main portion of the pixel portion. 
         FIG.  12    is a cross-sectional view of a main portion of the pixel portion. 
         FIG.  13    is a diagram illustrating visual characteristics of the electro-optical device according to the embodiment. 
         FIG.  14    is a diagram illustrating visual characteristics of an electro-optical device according to a reference example. 
         FIG.  15    is an explanatory diagram of viewing angle characteristics. 
         FIG.  16    is a diagram illustrating a comparison of a color change between the embodiment and the reference example. 
         FIG.  17    is a plan view illustrating an arrangement of a pixel electrode according to a first modified example. 
         FIG.  18    is a plan view illustrating an arrangement of a pixel electrode according to a second modified example. 
         FIG.  19    is a plan view illustrating an arrangement of a pixel electrode according to a third modified example. 
         FIG.  20    is a cross-sectional view of a main portion of a pixel portion in the third modified example. 
         FIG.  21    is a cross-sectional view of a main portion of the pixel portion in the third modified example. 
         FIG.  22    is a plan view illustrating a light-emitting region of a pixel portion according to a fourth modified example. 
         FIG.  23    is a perspective view illustrating a head-mounted display using an electro-optical device. 
         FIG.  24    is a diagram illustrating an optical configuration of the head-mounted display. 
         FIG.  25    is a plan view illustrating a light-emitting region in the electro-optical device according to the reference example. 
     
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     An electro-optical device according to an embodiment of the present disclosure will be described below with reference to the accompanying drawings. In each of the drawings, dimensions and scale of each part are appropriately different from actual ones. Moreover, the embodiment described below is a suitable specific example, and various technically preferable limitations are applied, but the scope of the disclosure is not limited to these modes unless they are specifically described in the following description as limiting the disclosure. 
     Electro-Optical Device According to Embodiment 
       FIG.  1    is a perspective view illustrating an electro-optical device  10  according to an embodiment, and  FIG.  2    is a block diagram illustrating an electrical configuration of the electro-optical device  10 . 
     The electro-optical device  10  is a micro display panel that displays a color image, for example, in a head-mounted display (HMD) or the like. The electro-optical device  10  includes a plurality of pixel portions, a drive circuit that drives the pixel portions, and the like. The pixel portions and the drive circuit are integrated into a semiconductor substrate. The semiconductor substrate is typically a silicon substrate, but may be a different semiconductor substrate. 
     The electro-optical device  10  is accommodated in a frame-shaped case  192  that opens in a display region  100 . One end of an FPC substrate  194  is coupled to the electro-optical device  10 . “FPC” is an abbreviation for “flexible printed circuit”. A plurality of terminals  196  for coupling a host device, which is not illustrated, are provided on the other end of the FPC substrate  194 . When the plurality of terminals  196  are coupled to the host device, video data, synchronization signals, and the like are supplied from the host device to the electro-optical device  10  via the FPC substrate  194 . 
     In the drawings, an X direction is an extension direction of a scanning line in the electro-optical device  10  and indicates a transverse direction on a display screen, and a Y direction is an extension direction of a data line and indicates a longitudinal direction on the display screen. A two-dimensional plane defined in the X direction and the Y direction is a substrate surface of a semiconductor substrate. A Z direction is perpendicular to the X direction and the Y direction and is an emission direction of light emitted from a light-emitting element. Further, in the description, in plan view, the semiconductor substrate is seen in a direction opposite to the Z direction, and in a cross-sectional view, the semiconductor substrate is seen in a state in which the semiconductor substrate is cut in a vertical direction of a substrate surface. 
     As illustrated in  FIG.  2   , the electro-optical device  10  is substantially divided into a control circuit  30 , a data signal output circuit  50 , a display region  100 , and a scanning line drive circuit  120 . 
     In the display region  100 , scanning lines  12  of m rows are provided in the X direction, and data lines  14  of (3 n) columns are provided in the Y direction to be electrically insulated from each of the scanning lines  12 . Each of m and n is an integer equal to or greater than 2. 
     In the display region  100 , pixel portions  110  are provided corresponding to intersections between the scanning lines  12  of the m rows and the data lines  14  of the (3 n) columns. Thus, the pixel portions  110  are arranged in a matrix of m longitudinal rows x (3 n) horizontal columns. To distinguish the rows from each other in the array of the matrix, the rows may be referred to as first, second, third, . . . , (m- 1 )-th, and m-th rows in order from the top in the drawing. Similarly, to distinguish the columns from each other in the matrix, the columns may be referred to as first, second, third, . . . , (3n-2), (3n-1)-th, and (3N)-th columns in order from the left in the drawing. 
     An integer i of 1 or more and m or less is used to generalize and explain the scanning lines  12 . Similarly, in order to generalize and explain the data lines  14 , an integer j of 1 or more and (3 n) or less is used. 
     The control circuit  30  controls each portion based on video data Vid and a synchronization signal Sync supplied from the host device which is not illustrated. Specifically, the control circuit  30  generates various control signals to control each portion. 
     The video data Vid designates, for example, a gradation level of a pixel in an image to be displayed by 8 bits. The synchronization signal Sync includes a vertical synchronization signal that instructs a start of vertical scanning of the video data Vid, a horizontal synchronization signal that instructs a start of horizontal scanning, and a dot clock signal that indicates a timing of one pixel of the video data. 
     Pixels of an image to be displayed in the present embodiment and the pixel portions  110  in the display region  100  correspond one-to-one with each other. 
     Characteristics of a luminance at a gradation level indicated by video data Vid supplied from the host device and characteristics of a luminance in the OLED included in the pixel portion  110  do not necessarily coincide with each other. Thus, to make the OLED emit light at a luminance corresponding to the gradation level indicated by the video data Vid, the control circuit  30  up-converts 8 bits of the video data Vid into, for example, 10 bits and outputs it as video data Vdata. Thus, the 10-bit video data Vdata is data corresponding to the gradation level designated by the video data Vid. 
     A look-up table in which a correspondence relationship between the 8 bits of the video data Vid which is an input and the 10 bits of the video data Vdata which is an output is stored in advance is used in the up-conversion. 
     The scanning line drive circuit  120  is a circuit for driving the pixel portions  110  arranged in m rows and (3n) columns for each row corresponding to control by the control circuit  30 . For example, the scanning line drive circuit  120  supplies scanning signals /Gwr(1),/Gwr(2),/Gwr(m- 1 ),/Gwr(m) to the scanning lines  12  of first, second, third, . . . , (m- 1 )-th, and m-th rows in order. To generalize, the scanning signal supplied to the scanning line  12  in the i-th row is denoted as /Gwr(i). 
     The data signal output circuit  50  is a circuit that outputs a data signal to the pixel portions  110  located in a row selected by the scanning line drive circuit  120  via the data line  14  corresponding to the control of the control circuit  30 . The data signal is a voltage signal that converts the 10-bit video data Vdata into an analog type. In other words, the data signal output circuit  50  converts video data Vdata of one row corresponding to the pixel portions  110  of first to (3n)-th columns in the selected row into an analog type and outputs the analog type data to the data lines  14  of the first to (3n)-th columns in order. 
     In the drawings, the data signals output to the data lines  14  of the first, second, third, . . . , (3n- 2 )-th, (3n- 1 )-th, and (3n)-th columns are referred to as Vd(1), Vd(2), Vd(3), Vd(3n- 2 ), Vd(3n- 1 ), and Vd(3n). To generalize, a potential of the data line  14  of a j-th column is denoted as Vd(j). 
     As illustrated in  FIG.  2   , in the pixel portions  110  of the display region  100 , from an electrical point of view, the pixel portions  110  of R, the pixel portions  110  of B, and the pixel portions  110  of G are arranged in the X direction, and the pixel portions  110  of the same color are arranged in the Y direction. Thus, focusing on some data lines  14  in one column, the pixel portions  110  of the same color correspond to each other. One color is expressed by an additive color mixture of the pixel portions  110  of the RBG adjacent to each other in the X direction. Thus, the pixel portion  110  should be referred to as a sub-pixel portion in a strict sense, but for convenience of explanation, the pixel portion  110  is designated as a pixel portion. 
     Further, the arrangement of the pixel portion  110  illustrated in  FIG.  2    is only an electrical point of view, and in reality, as illustrated in  FIG.  5    which will be described later, a light-emitting region in the pixel portion of each color is disposed. 
       FIG.  3    is a diagram illustrating an electrical configuration of the pixel portion  110  in the electro-optical device  10 . The pixel portions  110  arranged in 1080 rows and (3n) columns are electrically identical to each other. Therefore, the pixel portion  110  will be described with one pixel portion  110  corresponding to an i-th row and a j-th column as a representative. 
     As illustrated in the drawing, the pixel portion  110  includes P-channel MOS type transistors  121  and  122 , an OLED  130 , and a capacitive element  140  from the electrical point of view. 
     In the description of the pixel portion  110 , the “electrical point of view” is used when a plurality of elements constituting the pixel portion  110  and a coupling relationship between the plurality of elements are referred to. Since the pixel portion  110  includes elements that do not contribute to the electrical coupling relationship from a mechanical or physical point of view, such an expression is used. 
     The OLED  130  is an example of a light-emitting element in which a light-emitting layer  132  is sandwiched between a pixel electrode  131  and a common electrode  133 . The pixel electrode  131  functions as an anode, and the common electrode  133  functions as a cathode. The details of the OLED  130  will be described later, and when a current flows from the anode to the cathode, holes injected from the anode and electrons injected from the cathode are recombined in the light-emitting layer  132  to generate excitons, and white light is generated. 
     The generated white light resonates in an optical resonator configured of a reflective electrode omitted in  FIG.  3    and the common electrode  133  of a semi-reflective and semi-transmissive layer and is emitted at a resonance wavelength set corresponding to any of red, green, and blue. A color filter corresponding to the color is provided on the emission side of the light from the optical resonator. Thus, the emitted light from the OLED  130  is visually recognized by an observer through coloration by the optical resonator and the color filter. 
     In the transistor  121  of the pixel portion  110  in the i-th row and the j-th column, a gate node g is coupled to a drain node of the transistor  122 , a source node s is coupled to a feed line  116  of a voltage Vel, and a drain node d is coupled to the pixel electrode  131  which is an anode of the OLED  130 . 
     In the transistor  122  of the pixel portion  110  in the i-th row and the j-th column, a gate node is coupled to the scanning line  12  of the i-th row, and a source node is coupled to the data line  14  of the j-th column. The common electrode  133  which functions as a cathode of the OLED  130  is coupled to a feed line  118  of a voltage Vct. Further, since the electro-optical device  10  is formed on a silicon substrate, a substrate potential of each of the transistors  121  and  122  is set to a potential corresponding to, for example, the voltage Vel. 
     Because the pixel portion  110  illustrated in  FIG.  3    is common to each of red, green, and blue from the electrical point of view, it will be generally described without identifying the color, but it is different for each color from a structural point of view. Therefore, when the colors are described separately, the pixel portion  110  is referred to as pixel portions  110 R,  110 G, and  110 B. Similarly, when the OLED  130  and the pixel electrode  131  are described separately by color, the OLED  130  is referred to as OLEDs  130 R,  130 G, and  130 B and the pixel electrode  131  is referred to as pixel electrodes  131 R,  131 G, and  131 B. 
       FIG.  4    is a timing chart for describing an operation of the electro-optical device  10 . 
     In the electro-optical device  10 , the scanning lines  12  of m rows are scanned one by one in the order of first, second, third, . . . , m-th rows during a period of a frame (V). Specifically, as illustrated in the drawing, the scanning signals /Gwr(1), /Gwr(2), /Gwr(m- 1 ), and /Gwr (m) successively and exclusively reach an L level for each horizontal scanning period (H) by the scanning line drive circuit  120 . 
     In the present embodiment, a period during which the adjacent scanning signals among the scanning signals /Gwr(1) to /Gwr(m) reach the L level is temporally isolated. Specifically, after the scanning signal /Gwr(i- 1 ) changes from the L level to a H level, the next scanning signal /Gwr(i) reaches the L level after a period of time. This period corresponds to a horizontal return period. 
     In the present description, the period of one frame (V) refers to a period required to display one frame of an image designated by the video data Vid. In a case in which a length of the period of one frame (V) is the same as a vertical synchronization period, for example, when a frequency of a vertical synchronization signal included in the synchronization signal Sync is 60 Hz, it is 16.7 milliseconds which corresponds to one cycle of the vertical synchronization signal. In addition, the horizontal scanning period (H) is an interval of time in which the scanning signals/Gwr(1) to /Gwr(m) reach the L level in order, but in the drawing, for convenience, a start timing of the horizontal scanning period (H) is approximately a center of the horizontal return period. 
     When a certain scanning signal among the scanning signals/Gwr( 1 ) to /Gwr(m), for example, the scanning signal/Gwr(i) supplied to the scanning line  12  in the i-th row reaches the L level, the transistor  122  in the pixel portion  110  of the i-th row and the j-th column, speaking of the j-th column, is in an ON state. Thus, the gate node g of the transistor  121  in the pixel portion  110  is electrically coupled to the data line  14  of the j-th column. 
     In the present description, the “On state” of the transistor means that a distance between the source node and the drain node in the transistor is electrically closed to be in a low impedance state. Also, an “OFF state” of the transistor means that the distance between the source node and the drain node electrically opens to be in a high impedance state. 
     Also, in the description, “electrically coupled” or simply “coupled” means a state in which two or more elements are directly or indirectly coupled. “Electrically non-coupled” or simply “non-coupled” means a state in which the two or more elements are not directly or indirectly coupled. 
     In the horizontal scanning period (H) in which the scanning signal/Gwr(i) reaches the L level, the data signal output circuit  50  converts the gradation levels of pixels in the i-th row and first column to the i-th row and n-th column indicated by the video data Vdata into analog potentials Vd(1) to Vd(n), and outputs the analog potentials Vd(1) to Vd(n) to the data signals  14  in the first to n-th columns as data signals. In the j-th column, the data signal output circuit  50  converts the gradation level d (i, j) of the pixel in the i-th row and j-th column into the potential Vd(j) of the analog signal, and outputs the potential Vd(j) to the data line  14  in the j-th column. 
     In the horizontal scanning period (H) in which the scanning signal/Gwr(i- 1 ) one line before the scanning signal/Gwr(i) reaches the L level, the data signal output circuit  50  converts the gradation level d(i- 1 , j) of the pixel in the (i- 1 )-th row and j-th column to the potential Vd(j) of the analog signal, and outputs the potential Vd(j) to the data signal  14  in the j-th column as a data signal. 
     The data signal of the potential Vd (j) is applied to the gate node g of the transistor  121  in the pixel portion  110  in the i-th row and j-th column via the data line  14  in the j-th column, and the potential Vd (j) is retained by the capacitive element  140 . Therefore, the transistor  121  causes a current corresponding to a voltage between the gate node and the source node to flow to the OLED  130 . 
     Even when the scanning signal Gwr(i) reaches a H level and the transistor  122  is in the OFF state, the potential Vd(j) is retained by the capacitive element  140 , and thus the current continues to flow in the OLED  130 . Thus, in the pixel portion  110  in the i-th row and j-th column, the OLED  130  continues to emit light with a voltage retained by the capacitive element  140 , that is, a luminance corresponding to the gradation level until the period of one frame (V) elapses and the transistor  122  is turned on again and the voltage of the data signal is applied again. 
     Although the pixel portion  110  of the i-th row and j-th column has been described here, the OLED  130  of the pixel portion  110  other than the j-th column in the i-th row also emits light at the luminance indicated by the video data Vdata. 
     Also, the OLED  130  of the pixel portion  110  other than the i-th row also emits light with the luminance indicated by the video data Vdata by the scanning signals/Gwr( 1 ) to /Gwr(m) reaching the L level in order. 
     Thus, in the electro-optical device  10 , during the period of one frame (V), the OLED  130  in all of the pixel portions  110  from the first row and first column to the m-th row and n-th column emits light at the luminance indicated by the video data Vdata, and an image of one frame is displayed. 
       FIG.  5    is a plan view illustrating an arrangement of the pixel portions  110  in the display region  100  in the electro-optical device, and  FIG.  6    is a plan view illustrating a shape of the pixel electrode.  FIG.  7    is a plan view illustrating an arrangement of a coloring layer. Further, in  FIGS.  5 ,  6 , and  7   , an E direction is a direction in which the X direction is rotated counterclockwise by 45 degrees, and an F direction is a direction in which the E direction is rotated counterclockwise by 90 degrees. 
     A color of one dot in the display region  100  is represented by an additive color mixture of emitted light from four light-emitting regions surrounded by a frame Dp in  FIG.  5   . Specifically, in the frame Dp, light-emitting regions R, G 1 , G 2 , and B are arranged in two rows and two columns, among the light-emitting regions R, G 1 , G 2 , and B, the light-emitting regions R and B are arranged diagonally on one side in the two rows and two columns, and the light-emitting regions G 1  and G 2  are arranged diagonally on the other side. 
     The light-emitting region R is a region in the pixel electrode  131 R illustrated in  FIG.  6    which is in contact with the light-emitting layer  132 . The light-emitting regions G 1  and G 2  are regions in the pixel electrode  131 G which are in contact with the light-emitting layer  132 . The light-emitting region B is a region in the pixel electrode  131 B which is in contact with the light-emitting layer  132 . 
     The light-emitting regions R, G 1 , G 2 , and B are defined by opening portions Ap_R, Ap_G 1 , Ap_G 2 , and Ap_B in order. The opening portions Ap_R, Ap_G 1 , Ap_G 2 , and Ap_B are formed by patterning a pixel separation layer provided to cover the pixel electrodes  131 R,  131 G, and  131 B as described below. 
     The reason that the green light-emitting region becomes the two regions of G 1  and G 2  and is wider than one of the light-emitting region R and the light-emitting region B is that green has the highest visibility among red, green, and blue, and thus the life of green is ensured. 
     In  FIG.  6   , the pixel electrode  131 R has a shape in which an octagon and a rectangle are added in plan view. Specifically, one side of a rectangular region and one side of an octagonal region in the pixel electrode  131 R have substantially the same length, and the rectangle is located in a direction opposite to the E direction with respect to the octagon. In such pixel electrode  131 R, an octagonal opening portion Ap_R smaller than the octagon is provided in the octagonal region, and a contact region Ct_Px_R is provided in the rectangular region. The contact region Ct_Px_R is a coupling region of a lower wiring line in the pixel electrode  131 R, and the lower wiring line is electrically coupled to the drain node d of the transistor  121  in the pixel portion  110 R via a plurality of elements. 
     In plan view, the pixel electrode  131 G has a shape in which two pixel electrodes  131 R are continuous in the E direction. In the pixel electrode  131 G, an octagonal opening portion Ap_G 1  smaller than the octagon is provided in the octagonal region in the direction opposite to the E direction among the two octagons. In the pixel electrode  131 G, an octagonal opening portion Ap_G 2  smaller than the octagon is provided in the octagonal region in the E direction among the two octagons. 
     Further, in the pixel electrode  131 G, a contact region Ct_Px_G is provided in the rectangular region in the direction opposite to the direction E with respect to the opening portion A_G 1 , and a dummy contact region Ct_Dm is provided in the rectangular region between the opening portions Ap_G 1  and Ap_Px G 2 . 
     The contact region Ct_Px_G is a coupling region of a lower wiring line in the pixel electrode  131 G, and the lower wiring line is electrically coupled to the drain node d of the transistor  121  in the pixel portion  110 G via a plurality of elements. The dummy contact region Ct_Dm is a region that is not coupled to the lower wiring line in the pixel electrode  131 G. 
     The pixel electrode  131 B has substantially the same shape as the pixel electrode  131 R in plan view. In the pixel electrode  131 B, an octagonal opening portion Ap_B smaller than the octagon is provided in the octagonal region, and a contact region Ct_Px_B is provided in the rectangular region. The contact region Ct_Px_B is a coupling region of the lower wiring line in the pixel electrode  131 B, and the lower wiring line is electrically coupled to the drain node d of the transistor  121  in the pixel portion  110 B via a plurality of elements. 
       FIG.  7    is a plan view illustrating an arrangement of a coloring layer. As illustrated in the drawing, a red coloring layer Cf_R is provided to cover the light-emitting region R in plan view, and a green coloring layer Cf_G is provided to cover the light-emitting regions G 1  and G 2 . A blue coloring layer Cf_B is provided to cover the light-emitting region B and is provided corresponding to a region between the light-emitting regions G 1  and G 2  adjacent to each other in the E direction and the F direction. 
       FIG.  8    is a diagram for describing a region of the coloring layer Cf_B provided corresponding to one light-emitting region B. 
     As illustrated in the drawing, the coloring layer Cf_B includes an octagonal region Ba that covers the light-emitting region B and rectangular regions Bb 1 , Bb 2 , Bb 3 , and Bb 4  in a region between the light-emitting regions G 1  and G 2  in plan view. 
     Among the four regions Bb 1 , Bb 2 , Bb 3 , and Bb 4 , in plan view, the region Bb 1  has a rectangular shape that is in contact with the octagonal region Ba in a direction opposite to the F direction, and is provided between the coloring layer Cf_G (corresponding to the light-emitting region G 2 ) adjacent to the region Ba in the X direction and the coloring layer Cf_G corresponding to (the light-emitting region G 1 ) adjacent to the region Ba in the Y direction. 
     In plan view, the region Bb 2  has a rectangular shape that is in contact with the region Ba in the direction opposite to the E direction, and is provided between the coloring layer Cf_G (corresponding to the light-emitting region G 1 ) adjacent to the region Ba in the Y direction and the coloring layer Cf_G corresponding to (the light-emitting region G 2 ) adjacent to the region Ba in a direction opposite to the X direction. 
     The light-emitting region G 2  adjacent to the region Ba in the direction opposite to the X direction is the light-emitting region G 2  denoted by Fi in parentheses in  FIG.  5    and is different from the light-emitting region G 2  of one dot represented by the frame Dp including the region Ba. 
     In plan view, the region Bb 3  has a rectangular shape that is in contact with the region Ba in the F direction, and is provided between the coloring layer Cf_G (corresponding to the light-emitting region G 2 ) adjacent to the region Ba in the direction opposite to the X direction and the coloring layer Cf_G corresponding to (the light-emitting region G 1 ) adjacent to the region Ba in a direction opposite to the Y direction. 
     The light-emitting region G 1  adjacent to the region Ba in the direction opposite to the Y direction is the light-emitting region G 1  denoted by Sx in parentheses in  FIG.  5    and is different from the light-emitting region G 1  of one dot represented by the frame Dp including the region Ba. 
     In plan view, the region Bb 4  has a rectangular shape that is in contact with the region Ba in the E direction, and is provided between the coloring layer Cf_G (corresponding to the light-emitting region G 1 ) adjacent to the region Ba in the direction opposite to the Y direction and the coloring layer Cf_G corresponding to (the light-emitting region G 2 ) adjacent to the region Ba in the X direction. 
     Next, a cross-sectional structure of a main portion of the electro-optical device  10  will be described. 
       FIG.  9    is a cross-sectional view of a main portion of the pixel portion  110 R in the electro-optical device  10  and is a cross-sectional view when a region including the light-emitting region R and the contact region Ct_Px_R is cut in the E direction in  FIG.  6   . 
     A contact electrode  61 R is formed at a substrate  60  and is electrically coupled to a circuit layer which is not illustrated via a contact hole which is not illustrated. The circuit layer includes the scanning lines  12 , the data lines  14 , and the transistors  121  and  122 . 
     A reflective electrode  62 R is stacked on the contact electrode  61 R to reflect light incident in a direction opposite to the Z direction. As the reflective electrode  62 R, for example, a conductive layer in which an alloy (AlCu) film of aluminum and copper is layered on a titanium (Ti) film is used. The contact electrode  61 R and the reflective electrode  62 R are provided corresponding to the pixel portion  110 R among those in which the conductive layer is individually patterned in an island shape in plan view for each of the pixel portions  110 R,  110 G, and  110 B. 
     A gap  62 Ct is generated due to the formation of the island shape. 
     A reflection enhancing layer  63  is a layer for enhancing reflection characteristics by the reflective electrode  62 R. The reflection enhancing layer  63  has insulating properties and light transmissive properties and is provided to cover the reflective electrode  62 R. For example, silicon oxide is used as the reflection enhancing layer  63 . 
     A first insulating layer  64  covers the reflection enhancing layer  63  and is provided along the gap  62 Ct. Thus, the first insulating layer  64  has a recessed portion  64   a  in the vicinity of the gap  62 Ct. An embedded insulating layer  66  is provided to fill the recessed portion  64   a . A second insulating layer  65  is stacked on the first insulating layer  64  and the embedded insulating layer  66 . Silicon nitride (SiN) is used as the first insulating layer  64  and the second insulating layer  65 , for example, and silicon oxide is used as the embedded insulating layer  66 , for example. 
     A protective layer  72  is an insulating film stacked on the second insulating layer  65 , and, for example, silicon oxide is used. 
     The reflection enhancing layer  63 , the first insulating layer  64 , the second insulating layer  65 , and the protective layer  72  are open in the contact region Ct_Px_R. 
     The relay electrode  71 R is formed along this opening, and patterning the conductive layer laminated on the reflective electrode  62 R and the protective layer  72 . The relay electrode  71 R has a recess along this opening. For example, titanium nitride (TiN) is used as the conductive layer constituting the relay electrode  71 R. 
     A first optical adjustment layer  67  and a second optical adjustment layer  68  are insulating layers for adjusting an optical distance in an optical resonator and have light transmissive properties For example, silicon oxide is used as the first optical adjustment layer  67  and the second optical adjustment layer  68 . The first optical adjustment layer  67  and the second optical adjustment layer  68  are open in a region CtR of the contact region Ct_Px_R. 
     The pixel electrode  131 R is formed by patterning a conductive layer having light transmissive properties. The pixel electrode  131 R is stacked on the second optical adjustment layer  68  or the relay electrode  71 R, and the second insulating layer  65  is stacked in the region CtR in which the first optical adjustment layer  67  and the second optical adjustment layer  68  are open. The pixel electrode  131 R is patterned in a shape illustrated in  FIG.  6    in plan view. The pixel electrode  131 R is stacked along the opening in the region CR, and thus the pixel electrode  131 R has a recessed portion corresponding to the region CtR. For example, indium Tin Oxide (ITO) is used as the conductive layer constituting the pixel electrode  131 R. 
     A pixel separation layer  134  is stacked on the second optical adjustment layer  68 , the second insulating layer  65 , or the pixel electrode  131 R, and is an insulating film provided to cover a peripheral edge portion of the pixel electrode  131 R. In the pixel portion  110 R, the pixel separation layer  134  has an opening Ap_R in the shape illustrated in  FIG.  5    in plan view. For example, silicon oxide is used as the pixel separation layer  134 . 
     The light-emitting layer  132  is stacked on the pixel electrode  131 R or the pixel separation layer  134 . The light-emitting layer  132  is not particularly illustrated, includes a hole injection layer, an organic light-emitting layer, and an electron transport layer and is common in all the pixel portions including the pixel portions  110 R,  110 G, and  110 B. 
     The common electrode  133  is a conductive layer having light transmissive properties and reflectivity. The common electrode  133  is provided to cover the light-emitting layer  132  and is common in all the pixel portions including the pixel portions  110 R,  110 G, and  110 B. For example, an alloy of Mg and Ag is used as the common electrode  133 . 
     The light-emitting layer  132  is a region on the pixel electrode  131 R that is not covered by the pixel separation layer  134 , that is, a region that is in contact with the pixel electrode  131 R, and holes are supplied from a region defined by the opening Ap_R to emit white light. 
     In a portion corresponding to the light-emitting region R in plan view, an optical resonator is formed by the reflective electrode  62 R and the common electrode  133  in cross-sectional view, and an optical distance LR between the reflective electrode  62 R and the common electrode  133  is adjusted by a film thickness of the first optical adjustment layer  67  and the second optical adjustment layer  68 . Strictly speaking, the optical distance is a value obtained by multiplying a distance between the reflective electrode  62 R and the common electrode  133  by a refractive index of a medium between the reflective electrode  62 R and the common electrode  133 , but here, it is simply illustrated as a physical distance. 
     In a portion corresponding to the light-emitting region R, the white light emitted from the light-emitting layer  132  is repeatedly reflected between the reflective electrode  62 R and the common electrode  133 , and the intensity of light having a wavelength corresponding to the optical distance LR is enhanced. In the present embodiment, as an example, the intensity of light having a wavelength of 610 nm is enhanced in the pixel portion  110 R. The enhanced light passes through the common electrode  133  and is emitted as red light in the Z direction and the like through the coloring layer Cf_R. 
     In this way, light including a wavelength range of red from the light-emitting region R is emitted in the Z-direction or the like. 
     A first sealing layer  81  is an insulating layer having light transmissive properties and is provided to cover the common electrode  133 . 
     A planarized layer  82  is an insulating layer having light transmissive properties, and is provided to cover the first sealing layer  81  so that an observation surface is flat without a step. For example, an organic material such as an epoxy resin is used as the planarized layer  82 . 
     A second sealing layer  83  is an insulating layer having light transmissive properties, and is provided to cover the planarized layer  82 . The first sealing layer  81  and the second sealing layer  83  are provided to prevent moisture and oxygen from entering the light-emitting layer  132 . For example, silicon oxynitride (SiON) is used as the first sealing layer  81  and the second sealing layer  83 . 
     In the light-emitting region R of the pixel portion  110 R, the coloring layer Cf_R is provided as described in  FIG.  7    to cover the second sealing layer  83  in plan view. The coloring layer Cf_R is provided by patterning a photosensitive resin including a pigment that selectively transmits red color light using a photolithography technique. Thus, the coloring layer Cf_R has a function of transmitting red color light. The red color light is light including the wavelength range of red. In the present embodiment, the wavelength range of red is 580 nm or more and 700 nm or less. 
     In the pixel portion  110 R, the contact region Ct_Px_R is included in the region Bb 4  in plan view, and thus the blue coloring layer Cf_B is provided. Furthermore, a filling layer, a protective glass, and the like are provided on the coloring layers Cf_R and Cf_B, but they are omitted because they are not important in this case. 
       FIG.  10    is a cross-sectional view of a main portion of the pixel portion  110 G of the electro-optical device  10  and is a cross-sectional view when the region including the light-emitting region G 2 , the dummy contact region Ct_Dm, the light-emitting region G 1  and the contact region Ct_Px_G is cut in the E direction in  FIG.  6   . 
     First, the light-emitting regions G 1  and G 2  in the pixel portion  110 G will be described. The light-emitting regions G 1  and G 2  are different from the light-emitting region R illustrated in  FIG.  9    in that, first, the first optical adjustment layer  67  is not provided in the light-emitting regions G 1  and G 2 . 
     Specifically, in a portion corresponding to the light-emitting region R, the first optical adjustment layer  67  and the second optical adjustment layer  68  are provided between the reflective electrode  62 R and the pixel electrode  131 R, whereas, in a portion corresponding to the light-emitting regions G 1  and G 2 , the second optical adjustment layer  68  is provided between the reflective electrode  62 G and the pixel electrode  131 G but the first optical adjustment layer  67  is not provided. 
     Thus, in the portion corresponding to the light-emitting regions G 1  and G 2 , an optical distance LG between a reflective electrode  62 G and the common electrode  133  is shorter than an optical distance LR at a portion corresponding to the light-emitting region R by the first optical adjustment layer  67  not present. 
     In addition, the light-emitting regions G 1  and G 2  are different from the light-emitting region R in that the pixel electrode  131 G is patterned in the shape illustrated in  FIG.  6    in plan view. A point in which the pixel electrode  131 G is stacked on the second optical adjustment layer  68  in the light-emitting regions G 1  and G 2  is common to the light-emitting region R. 
     The contact electrode  61 R, the reflective electrode  62 R, and the relay electrode  71 R in the pixel portion  11 OR are provided in order as a contact electrode  61 G, a reflective electrode  62 G, and a relay electrode  71 G in the pixel portion  110 G. 
     In the portion corresponding to the light-emitting regions G 1  and G 2 , the white light emitted from the light-emitting layer  132  is repeatedly reflected between the reflective electrode  62 G and the common electrode  133 , and the intensity of light having a wavelength corresponding to the optical distance LG is enhanced. In the present embodiment, as an example, the intensity of light having a wavelength of 540 nm is enhanced in the pixel portion  110 G. The enhanced light passes through the common electrode  133  and is emitted as green light in the Z direction and the like through the coloring layer Cf_G. 
     In this way, light including a wavelength range of green is emitted in the Z-direction and the like from the light-emitting regions G 1  and G 2  in plan view. 
     Next, the contact region Ct_Px_G in the pixel portion  110 G will be described. 
     In the contact region Ct_Px_G, the reflection enhancing layer  63 , the first insulating layer  64 , the second insulating layer  65 , and the protective layer  72  are open, and the relay electrode  71 G is provided along the opening and is stacked on the reflective electrode  62 G and the protective layer  72 . Since the first optical adjustment layer  67  is not provided in the pixel portion  110 G, only the second optical adjustment layer  68  is open in the region CtG. 
     Due to the contact region Ct_Px_G, the pixel electrode  131 G is electrically coupled to a circuit layer, which is not illustrated, via the relay electrode  71 G, the reflective electrode  62 G, and the contact electrode  61 G. 
     In the dummy contact region Ct_Dm, the protective layer  72  and a dummy relay electrode  71 D are provided in order on a surface of the second insulating layer  65  in the Z direction. The dummy relay electrode  71 D is formed by patterning the same layers as the relay electrodes  71 R,  71 G, and  71 B. 
     In the dummy contact region Ct_Dm, the first optical adjustment layer  67  is provided to cover the protective layer  72  and the dummy relay electrode  71 D. 
     Additionally, in the dummy contact region Ct_Dm, the first optical adjustment layer  67  and the second optical adjustment layer  68  are present between the pixel electrode  131 G and the dummy relay electrode  71 D, and the protective layer  72 , the second insulating layer  65  and the like are present between the dummy relay electrode  71 D and the reflective electrode  62 G. 
     Therefore, the pixel electrode  131 G and the dummy relay electrode  71 D are electrically non-coupled to each other and are also electrically non-coupled to the dummy relay electrode  71 D and the reflective electrode  62 G. 
     In the present embodiment, in the dummy contact region Ct_Dm, the pixel electrode  131 G is electrically non-coupled to the reflective electrode  62 G (the drain node d of the transistor  121 ). Therefore, in the dummy contact region Ct_Dm, the pixel electrode  131 G does not contribute to any electrical coupling of the reflective electrode  62 G. It is referred to as a dummy contact region in that sense. 
     In the light-emitting regions G 1  and G 2  of the pixel portion  110 G, the coloring layer Cf_G is provided as described in  FIG.  7    to cover the second sealing layer  83  in plan view. The coloring layer Cf_G is provided by patterning a photosensitive resin including a pigment that selectively transmits green color light using a photolithography technique. Thus, the coloring layer Cf_G has a function of transmitting green color light. The green colored light is light including a wavelength range of green. In the present embodiment, the wavelength range of green is 500 nm or more and 580 nm or less. 
     In the pixel portion  110 G, since the contact region Ct_Px_G is included in the region Bb 3  in plan view, the blue coloring layer Cf_B is provided, and since the dummy contact region Ct_Dm is included in the region Bb 1  in plan view, the blue coloring layer Cf_B is provided. 
       FIG.  11    is a cross-sectional view of a main portion of a pixel portion  110 B of the electro-optical device  10 , and is a cross-sectional view when a region including the light-emitting region B and the contact region Ct_Px_B in  FIG.  6    is cut in the E direction. 
     First, the light-emitting region B in the pixel portion  110 G will be described. The light-emitting region B is different from the light-emitting region G 1  or G 2  illustrated in  FIG.  10    in that, first, the second optical adjustment layer  68  is not provided in the light-emitting region B. 
     Thus, in a portion corresponding to the light-emitting region B, an optical distance LB between a reflective electrode  62 B and the common electrode  133  is shorter than the optical distance LG at the portion corresponding to the light-emitting region G 1  or G 2  by the second optical adjustment layer  68  not present. 
     Thus, the optical distances LR, LG, and LB in the optical resonator is LR &gt;LG &gt;LB. 
     In the pixel portion  110 B, a pixel electrode  131 B is patterned in the shape illustrated in  FIG.  6    in plan view. A point in which the pixel electrode  131 B is stacked on the second optical adjustment layer  68  in the light-emitting region B is common to the light-emitting regions R, G 1 , and G 2 . 
     The contact electrode  61 R, the reflective electrode  62 R, and the relay electrode  71 R in the pixel portion  11 OR are provided in order as a contact electrode  61 B, a reflective electrode  62 B, and a relay electrode  71 B in the pixel portion  110 B. 
     In the contact region Ct_Px_B, the reflection enhancing layer  63 , the first insulating layer  64 , the second insulating layer  65 , and the protective layer  72  are open, and the relay electrode  71 B is provided along the opening and is stacked on the reflective electrode  62 B and the protective layer  72 . In the pixel portion  110 B, the first optical adjustment layer  67  and the second optical adjustment layer  68  are not provided, and thus the recessed portions such as the regions CtR and Ct_G are not provided. Due to the contact region Ct_Px_B, the pixel electrode  131 B is electrically coupled to a circuit layer, which is not illustrated, via the relay electrode  71 B, the reflective electrode  62 B, and the contact electrode  61 B in order. 
     In the light-emitting region B of the pixel portion  110 B, the coloring layer Cf_B is provided to cover the second sealing layer  83 . The coloring layer Cf_B is provided by patterning a photosensitive resin including a pigment that transmits blue light using a photolithography technique. Thus, the coloring layer Cf_B has a function of transmitting blue color light. Blue color light is light including a wavelength range of blue. In the present embodiment, the wavelength range of blue is 400 nm or more and 500 nm or less. 
     Since the contact region Ct_Px_B in the pixel portion  110 B is included in the region Bb 3  in plan view, the blue coloring layer Cf_B is provided, and since the dummy contact region Ct_Dm is included in the region Bb 2  in plan view, the blue coloring layer Cf_B is provided. 
     In a portion corresponding to the light-emitting region B, the white light emitted from the light-emitting layer  132  is repeatedly reflected between the reflective electrode  62 B and the common electrode  133 , and the intensity of light having a wavelength corresponding to the optical distance LB is enhanced. In the present embodiment, as an example, the intensity of light having a wavelength of 470 nm is enhanced in the pixel portion  110 B. The enhanced light passes through the common electrode  133  and is emitted as blue light in the Z direction and the like through the coloring layer Cf_B. 
     In this way, light including a wavelength range of blue is emitted from the light-emitting region B in the Z direction and the like in plan view. 
       FIG.  12    is a cross-sectional view of a main portion of the electro-optical device  10 , and is a cross-sectional view when a region including the light-emitting region R, the dummy contact region Ct_Dm, the light-emitting region B, and the contact region Ct_Px_G in  FIG.  6    is cut in the F direction. 
     The light-emitting region R, the dummy contact region Ct_Dm, and the light-emitting region B and the contact region Ct_Px_G are as described above. Further, as described above, the coloring layer Cf_B is provided in the region Bb 3  in which the contact region Ct_Px_G is provided and the region Bb 1  in which the dummy contact region Ct_Dm is provided. 
     In the contact regions Ct_Px_R, Ct_Px_G 1 , and Ct_Px_B, the reflection enhancing layer  63 , the first insulating layer  64 , the second insulating layer  65 , the protective layer  72 , and the relay electrode  71  ( 71 R,  71 G) are provided in order from the reflective electrode  62  ( 62 R,  62 G,  62 B) to the pixel electrode  131 . Therefore, in the contact regions Ct_Px_R, Ct_Px_G 1 , and Ct_Px_B, a distance Lpx from the reflective electrode  62  to the pixel electrode  131  is constant in the pixel portions  110 R,  110 G, and  110 B. 
     On the other hand, in the dummy contact region Ct_Dm, the reflection enhancing layer  63 , the first insulating layer  64 , the second insulating layer  65 , the protective layer  72 , the dummy relay electrode  71 D, the first optical adjustment layer  67 , and the second optical adjustment layer  68  are provided in order from the reflective electrode  62 G to the pixel electrode  131 G. 
     In other words, in the contact regions Ct_Px_R, Ct_Px_G, and Ct_Px_B, the first optical adjustment layer  67  and the second optical adjustment layer  68  are not provided, compared to the dummy contact region Ct_Dm. Thus, in the dummy contact region Ct_Dm, a distance LDm from the reflective electrode  62 G to the pixel electrode  131 G is longer than the distance Lpx in the contact regions Ct_Px_R, Ct_Px_G 1 , and Ct_Px_B. That is, in the pixel portions  110 R,  110 G, and  110 B, when the reflective electrode  62  is used as a reference, a distance to the pixel electrode  131  in the Z direction is the longest (thickest) in the dummy contact region Ct_Dm. 
     The first sealing layer  81  is provided to cover the common electrode  133 . The planarized layer  82  provided to cover the first sealing layer  81  is formed, for example, by screen printing. Screen printing is printing using “screen mesh” that is made by folding synthetic fibers or metal fibers, and an organic material such as an epoxy resin is caused to pass through a net of the screen mesh by moving a squeegee and is printed to cover the first sealing layer  81 . In the screen printing, intersection points of the net are pressed against the first sealing layer  81  with the movement of the squeegee. In the pressing, a force may not be evenly applied in the display region  100 , and some regions may be more pressed than other regions. In addition, in a manufacturing process of the electro-optical device  10 , there are many cases in which some regions are pressed by applying a force in the display region  100  without being limited to the screen printing. 
     In the pressed region, the light-emitting layer  132  is locally thinned. In a portion in which the light-emitting layer  132  is locally thinned, a resistance value becomes low, and a minute current easily flows. When the micro-current flows, it tends to emit red light with high efficiency. The red light is light in a wavelength range resonated by an optical resonator having an optical distance of LR which has the highest light-emitting efficiency. 
     In order to prevent this phenomenon, it can be dealt with by thickening the planarized layer  82 , but there is a problem that a distance from the light-emitting layer  132  to the coloring layers Cf_R, Cf_G, and Cf_B increases, and thus a viewing angle becomes narrower. 
     In the present embodiment, when a part of the display region  100  is pressed, the pressing is suppressed by the dummy contact region Ct_Dm as a stopper, and thus local thinning of the light-emitting layer  132  is suppressed in the light-emitting regions R, G 1 , G 2 , and B. 
     Further, the light-emitting layer  132  becomes thinner around the dummy contact region Ct_Dm due to the pressing. In a portion in which the light-emitting layer  132  is locally thinned, there is a tendency to emit light in a red color as described below. The dummy contact region Ct_Dm is included in the coloring layer Cf_B in plan view. Thus, even when the light-emitting layer  132  emits light in a red color due to the thinning of the light-emitting layer  132  in the vicinity of the dummy contact region Ct_Dm, the light is shielded by the coloring layer Cf_B, and thus the red light is not visually recognized by the observer. 
     Accordingly, according to the present embodiment, it is possible to suppress a reduction in display quality due to the local pressing against the display region  100 . 
     In the present embodiment, the light-emitting regions R and B are arranged repeatedly in the X direction and the Y direction, and the light-emitting regions G 1  and G 2  are repeatedly arranged in the E direction and the F direction, that is, in an oblique direction with respect to the X direction or the Y direction. In the arrangement of the light-emitting regions R, G 1 , G 2 , and B, the following problems occur in a configuration of a reference example in which the coloring layer Cf_R, Cf_G, and Cf_B are provided corresponding to regions defined by boundary lines, as illustrated in  FIG.  25   . 
     In the configuration of the reference example, as illustrated in  FIG.  14   , the coloring layers Cf_G are contiguously arranged in the E direction, and thus, in the light emitted from the light-emitting region G 1  in the OLED  130 G, not only a component in the Z direction but also a component in the E direction (oblique light) are not small and is transmitted through the coloring layer Cf_G. 
     In  FIG.  14   , the coloring layers Cf_G is continuous in the E direction and is also continuous in the F direction, and thus, in the light emitted from the light-emitting region G 1 , oblique light in the F direction is not small and is transmitted through the coloring layer Cf_G. Further, in  FIG.  14   , the emitted light from the light-emitting region G 1  is focused, but also in the emitted light from the light-emitting region G 2 , the oblique light in the E direction and the F direction is not small and is transmitted through the coloring layer Cf_G. 
     Although not specifically illustrated, in the reference example, since the coloring layers Cf_R and Cf_B are arranged alternately in the E direction, that is, they are arranged not to be continuous in the E direction, the oblique light emitted from one of the OLED  130 R or the OLED  130 G is shielded by the coloring layer corresponding to the other. 
     That is, in the reference example, the oblique light is also visually recognized in the emitted light from the OLED  130 G, whereas the oblique light is difficult to be visually recognized in the emitted light from the OLEDs  130 R and  130 B. 
     Thus, in the reference example, green oblique light is visually recognized, whereas since red and blue oblique light is difficult to be visually recognized, a degree of color change due to a viewing angle in the oblique direction differs between green and red and blue. 
     On the other hand, in the present embodiment, the coloring layer Cf_B is provided in, for example, the region Bb 1  between the light-emitting regions G 1  and G 2  in plan view, as illustrated in  FIG.  13   . Thus, in the light emitted from the OLED  130 G, the oblique light in the E direction is shielded by the coloring layer Cf_B. Although the region Bb 1  has been described here, the same applies to the regions Bb 2 , Bb 3 , and Bb 4 . That is, in the coloring layer Cf_B, the regions Bb 1 , Bb 2 , Bb 3 , and Bb 4  shield green light emitted from the light-emitting region G 1  or G 2 . The coloring layer Cf_G transmits green light emitted from the light-emitting region G 1  or G 2  in the Z direction. 
     Thus, in the present embodiment, similar to the red and blue oblique light, the green oblique light is difficult to be visually recognized, and thus the degree of color change due to the viewing angle in the oblique direction is close to that of red, green, and blue. 
     The technology described in JP-A-2019-117941 has a configuration in which the red light-emitting region is assigned to one of the four octagonal regions which are arranged in two rows and two columns to express a collar of one dot, the green light-emitting region is assigned to another one, and the blue light-emitting region is assigned to the remaining two, and is different from the present embodiment in which the two green light-emitting regions G 1  and G 2  are assigned diagonally. Thus, in the technology described in JP-A-2019-117941, a configuration in which the two green light-emitting regions G 1  and G 2  are assigned diagonally is assumed as the reference example illustrated in  FIG.  25   . 
       FIG.  15    is an explanatory diagram illustrating measurement of the color change in the electro-optical device  10  according to the present embodiment. For the color change, chromaticity when a diagonal center Cen of the display region  100  is seen from the front and chromaticity when the diagonal center is shifted by, for example, 20 degrees are measured by a chromaticity meter  200 , both the chromaticities are plotted in a u′v′ coordinate system, and the color change is expressed by a distance (Δu′v′) on a plotted color space. The distance (Δu′v′) on the color space is referred to as a color difference, and when the color difference is greater than 0.02, it is said that humans can perceive the color difference. 
     In the present description, the case in which the diagonal center Cen is seen from the front is a case in which the diagonal center Cen of the display region  100  is seen at a point separated from the diagonal center Cen by a distance Q in a vertical straight line P passing through the diagonal center Cen of the display region  100 . 
     Further, when the diagonal center is shifted by 20 degrees, there are the following three ways. 
     That is, there are, firstly, a case in which the diagonal center Cen of the display region  100  is seen at a point separated by the distance Q from the diagonal center Cen in a straight line formed by tilting the vertical straight line P by 20 degrees from the diagonal center Cen on a plane defined by the Y and Z directions (Y-Z: longitudinal direction), secondly, a case in which the diagonal center Cen of the display region  100  is seen at a point separated by the distance Q from the diagonal center Cen in a straight line formed by tilting the vertical straight line P by 20 degrees from the diagonal center Cen on a plane defined by the X and Z directions (X-Z: transverse direction), and 
     thirdly, a case in which the diagonal center Cen of the display region  100  is seen at a point separated by the distance Q from the diagonal center Cen in a straight line formed by tilting the vertical straight line P by 20 degrees from the diagonal center Cen on a plane defined by the E and Z directions (E-Z: oblique direction). 
       FIG.  16    is a table illustrating results of measuring the color difference between the present embodiment and the reference example in the longitudinal direction, the transverse direction, and the oblique direction. 
     As illustrated in the table, in the reference example, the color difference is less than 0.02 in the longitudinal direction and the transverse direction, whereas it is greater than 0.02 in the oblique direction. On the other hand, in the present embodiment, the color difference is less than 0.02 in any of the longitudinal, transverse and oblique directions. 
     Thus, in the present embodiment, even when the viewing angle of the display region  100  changes, the color change is small as compared with the reference example. 
     As described above, the optical distances LR, LG, and LB in the optical resonator is LR &gt;LG &gt;LB. 
     If the light-emitting region B having the smallest optical distance and the light-emitting region R having the largest optical distance are adjacent to each other when seen in the X and Y directions, a large step is generated at a boundary between the light-emitting regions B and R. 
     When there is a large step at the boundary between the light-emitting regions, due to the step, the light-emitting layer  132  is locally thinned, resistance is lowered, and the current easily leaks. When a leakage current flows in the light-emitting layer  132 , unintended light emission occurs, and a color gamut of a display image is narrowed. 
     In particular, in a micro display panel as in the present embodiment, the light-emitting region (the opening portion) is small, and thus the effect of the step is increased. The light emission due to leakage current tends to occur in a highly efficient manner, that is, in a red color that emits light even with a small current. 
     On the other hand, according to the present embodiment, in the Y direction, the light-emitting regions G 1  and B are adjacent to each other, and the light-emitting regions R and G 2  are adjacent to each other. In the X direction, the light-emitting regions R and G 1  are adjacent to each other, and the light-emitting regions G 2  and B are adjacent to each other. That is, in the present embodiment, when seen in the X direction and the Y direction, the light-emitting region B having the smallest optical distance and the light-emitting region R having the largest optical distance are not adjacent to each other. Further, in the present embodiment, when seen in the E direction and the F direction, the light-emitting regions B and R are adjacent to each other via the contact region Ct_Px_G or the dummy contact region Ct_Dm. Thus, according to the present embodiment, the light-emitting layer  132  is prevented from being locally thinned due to the step in the light-emitting region, and thus abnormal light emission due to the flowing of the leakage current is suppressed, and it is possible to avoid the narrowing of the color gamut of the displayed image. 
     MODIFIED EXAMPLE 
     The embodiments exemplified above can be variously modified. Specific modification aspects that may be applied to the embodiments are exemplified below. Two or more embodiments arbitrarily selected from the following examples may be combined to the extent that mutual contradiction does not arise. 
     The positional relationship between the light-emitting region and the contact region in each of the pixel portions  110 R,  110 G, and  110 B is not limited to the embodiment illustrated in  FIG.  6   , and may be a positional relationship in a first modified example, a second modified example, and a third modified example as described below. 
       FIG.  17    is a plan view illustrating an arrangement of the pixel electrodes  131 R,  131 G, and  131 B according to the first modified example. 
     The first modified example is an example in which the contact region is located in the F direction with respect to the light-emitting region. Specifically, in the first modified example, the contact region Ct_Px_R is located in the F direction with respect to the light-emitting region R, the contact region Ct_Px_B is located in the F direction with respect to the light-emitting region G 1 , and the dummy contact region Ct_Dm is located in the F direction with respect to the light-emitting region G 2 , and the contact region Ct_Px_B is located in the F direction with respect to the light-emitting region B. 
     In the first modified example, the arrangement of the coloring layers Cf_R, Cf_G, and Cf_B is common to  FIG.  7    in the embodiment. Thus, in the first modified example, the region Bb 1  overlaps the contact region Ct_Px_R in plan view, and the region Bb 2  overlaps the contact region Ct_Px_G in plan view. 
       FIG.  18    is a plan view illustrating an arrangement of the pixel electrodes  131 R,  131 G, and  131 B, and the like according to the second modified example. 
     The second modified example is an example in which the contact region is located in a direction opposite to the F direction with respect to the light-emitting region. Specifically, in the second modified example, the contact region Ct_Px_R is located in the direction opposite to the F direction with respect to the light-emitting region R, the contact region Ct_Px_B is located in the direction E in the direction opposite to the F direction with respect to the light-emitting region G 1 , the dummy contact region Ct_Dm is located in the direction opposite to the direction of the F direction with respect to the light-emitting region G 2 , and the contact region Ct_Px_B is located in the direction opposite to the F direction with respect to the light-emitting region B. 
     In the second modified example, the arrangement of the coloring layers Cf_R, Cf_G, and Cf_B is common to  FIG.  7    in the embodiment. Thus, in the second modified example, the region Bb 1  overlaps the contact region Ct_Px_B in plan view, and the region Bb 2  overlaps the dummy contact region Ct_Dm in plan view. 
     Although not specifically illustrated, the contact region may be located in the E direction with respect to the light-emitting region. However, when the contact region is located in the E direction with respect to the light-emitting region, the region Bb 1  overlaps the dummy contact region Ct_Dm in plan view similarly to the embodiment, and the region Bb 2  overlaps the contact region Ct_Px_R in plan view. 
       FIG.  19    is a plan view illustrating an arrangement of the pixel electrodes  131 R,  131 G, and  131 B, and the like according to the third modified example. The third modification has a relationship in which the contact region Ct_Px_G and the dummy contact region Ct_Dm in the embodiment are interchanged with each other in the pixel portion  110 G. 
     In the third modified example, the arrangement of the coloring layers Cf_R, Cf_G, and Cf_B is common to  FIG.  7    in the embodiment. Thus, in the third modified example, the region Bb 1  overlaps the contact region Ct_Px_G in plan view, and the region Bb 2  overlaps with the contact region Ct_Px_B in plan view. 
       FIG.  20    is a cross-sectional view when a region including the light-emitting region G 2 , the contact region Ct_Px_G, the light-emitting region G 1  and the dummy contact region Ct_Dm is cut in the E direction in the third modified example.  FIG.  21    is a cross-sectional view when a region including the light-emitting region R, the contact region Ct_Px_G, the light-emitting region R, and the dummy contact region Ct_Dm is cut in the F direction in the third modified example. 
       FIG.  20    is in a relationship in which the dummy contact region Ct_Dm and the contact region Ct_Px_G in  FIG.  10    are interchanged with each other, and  FIG.  21    is similarly in a relationship in which the dummy contact region Ct_Dm and the contact region Ct_Px_G in  FIG.  12    are interchanged with each other. Therefore, the detailed description thereof will be omitted. 
     Although not illustrated, in the second modified example, the contact region Ct_Px_G and the dummy contact region Ct_Dm may be interchanged with each other in the pixel portion  110 G. In such a configuration, the region Bb 2  overlaps the contact region Ct_Px_G corresponding to the light-emitting region G 2  with a reference sign Fi attached in plan view. 
     Areas of the light-emitting regions R, G 1 , G 2 , and B in plan view do not have to be equal to each other. As described above, this is because the area of each of the light-emitting regions has properties that are determined in consideration of light emission efficiency, visibility, life of the light-emitting layer, and the like. 
     Thus, as illustrated in the fourth modified example illustrated in  FIG.  22   , area of light-emitting region R &lt;area of light-emitting region B &lt;Sum of areas of light-emitting regions G 1  and G 2   
     The reason why the area of each of the light-emitting regions has such a relationship is because, since the light emission efficiency of red is highest in red, green and blue, the area thereof may be minimal, while green has high visibility and the area thereof is maximized to ensure the life to withstand overuse. 
     In the present embodiment, the OLED is used as an example of the light-emitting element, but the present disclosure is not limited thereto, and an inorganic EL element using an inorganic material, or a pLED element may be used. 
     Electronic Apparatus 
     Next, an electronic apparatus to which the electro-optical device  10  according to the embodiment and the first to fourth modified examples is applied will be described. The electro-optical device  10  is suitable for application with a small pixel and high definition display. Therefore, a head-mounted display will be described as an example of the electronic apparatus. 
       FIG.  23    is a view illustrating an exterior of a head-mounted display, and  FIG.  24    is a view illustrating an optical configuration of the head-mounted display. 
     First, as illustrated in  FIG.  23   , a head-mounted display  300  includes, in terms of exterior, temples  310 , a bridge  320 , and lenses  301 L and  301 R, similar to typical eye glasses. In addition, as illustrated in  FIG.  24   , in the head-mounted display  300 , an electro-optical device  10 L for a left eye and an electro-optical device  10 R for a right eye are provided in the vicinity of the bridge  320  and on the back side (the lower side in the drawing) of the lenses  301 L and  301 R. 
     An image display surface of the electro-optical device  10 L is disposed to be on the left side in  FIG.  24   . Thus, a display image by the electro-optical device  10 L is output via an optical lens  302 L in a 9-o&#39;clock direction in the drawing. A half mirror  303 L reflects the display image by the electro-optical device  10 L in a 6-o&#39;clock direction, while the half mirror  303 L transmits light incident in a 12-o&#39;clock direction. An image display surface of the electro-optical device  10 R is disposed on the right side opposite to the electro-optical device  10 L. Thus, the display image by the electro-optical device  10 R is output via the optical lens  302 R in a 3-o&#39;clock direction in the drawing. A half mirror  303 R reflects the display image by the electro-optical device  10 R in a 6-o&#39;clock direction, while the half the mirror  303 R transmits light incident in a 12-o&#39;clock direction. 
     In this configuration, a wearer of the head-mounted display  300  can observe the display images by the electro-optical devices  10 L and  10 R in a see-through state in which the display images by the electro-optical devices  10 L and  10 R overlap the outside. 
     In addition, in the head-mounted display  300 , in the images for both eyes with parallax, an image for a left eye is displayed on the electro-optical device  10 L, and an image for a right eye is displayed on the electro-optical device  10 R, and thus, it is possible to cause the wearer to sense the displayed images as an image displayed having a depth or a three-dimensional effect. 
     In addition to the head mounted display  300 , the electric apparatus including the electro-optical device  10  can be applied to an electronic viewing finder in a video camera, a lens-exchangeable digital camera, or the like, a mobile information terminal, a wristwatch display, a light valve for a projection type projector, and the like. 
     Supplementary Note 
     Preferred aspects of the present disclosure are understood from the above description, as follows. In the following, in order to facilitate understanding of each of the aspects, the reference signs of the drawings are provided in parentheses for convenience, but the present disclosure is not intended to be limited to the illustrated aspects. 
     Appendix  1   
     The electro-optical device ( 10 ) according to one aspect (aspect 1) includes, in plan view, a first light-emitting region (B) that emits light in a first wavelength range, a first coloring layer (Cf_B) that transmits the light in the first wavelength range, a second light-emitting region (G 1 ) that is disposed adjacent to the first light-emitting region (B) in a first direction and emits light in a second wavelength range, a second coloring layer (Cf_G) that is provided overlapping the second light-emitting region (G 1 ) and transmits the light in the second wavelength range, a third light-emitting region (R) that is disposed adjacent to the second light-emitting region (G 1 ) in a second direction and emits light in a third wavelength range, a third coloring layer (Cf_R) that is provided overlapping the third light-emitting region and transmits the light in the third wavelength range, a fourth light-emitting region (G 2 ) that is disposed adjacent to the second light-emitting region in a third direction intersecting the first direction and the second direction and emits the light in the second wavelength range, and a fourth coloring layer (Cf_G) that is provided overlapping the fourth light-emitting region and transmits the light in the second wavelength range, wherein the first coloring layer (Cf_B) includes a first region (Ba) that overlaps the first light-emitting region in plan view, and a second region (Bb 1 ) located between the second light-emitting region (G 1 ) and the fourth light-emitting region (G 2 ) in plan view. 
     In aspect 1, the second region (Bb 1 ) of the first light-emitting layer (CCF_B) that transmits light in a wavelength range different from that of the second light-emitting region (G 1 ) or the fourth light-emitting region (G 2 ) is provided between the second light-emitting region (G 1 ) and the fourth light-emitting region (G 2 ) adjacent in the third direction. Thus, the light in the second wavelength range emitted in an oblique direction along the third direction is shielded by the first light-emitting layer (Cf_B). Thus, according to aspect 1, a degree of color change can be made uniform when seen in a direction of a row or column (the second direction or the first direction) and when seen in the oblique direction (the third direction). 
     The Y direction is an example of the first direction, the X direction is an example of the second direction, and the E direction is an example of the third direction. The light-emitting region B is an example of the first light-emitting region, the light-emitting region G 1  is an example of the second light-emitting region, and the light-emitting region R is an example of the third light-emitting region, and the light-emitting region G 2  is an example of the fourth light-emitting region. 
     The coloring layer Cf_B is an example of the first coloring layer, and the coloring layer Cf_G is an example of the second coloring layer, and the coloring layer Cf_R is an example of the third coloring layer. The region Ba is an example of a first region, and the region Bb 1  is an example of a first light-shielding region. 
     Appendix  2   
     In the electro-optical device ( 10 ) according to a specific aspect (aspect 2) of aspect 1, the first wavelength range has a shorter wavelength range than the second wavelength range and the third wavelength range. 
     According to aspect 2, the light in the second wavelength range emitted from the second light-emitting region (G 1 ) or the fourth light-emitting region (G 2 ) in the third direction can be more reliably shielded by the first light-emitting layer (Cf_B) having a shorter wavelength. 
     Appendix  3   
     The electro-optical device ( 10 ) according to a specific aspect (aspect 3) of aspect 1 or 2 includes a first light-emitting element ( 130 B) including a common electrode ( 133 ), a first pixel electrode ( 131 B), and a light-emitting layer ( 132 ), a first relay electrode ( 71 B) electrically coupled to the first pixel electrode ( 131 B), a second light-emitting element ( 131 G) including the common electrode ( 133 ), a second pixel electrode ( 131 G), and the light-emitting layer ( 132 ), a second relay electrode ( 71 G) electrically coupled to the second pixel electrode ( 131 G), a third light-emitting element ( 130 R) including the common electrode ( 133 ), a third pixel electrode ( 131 R), and the light-emitting layer ( 132 ), and a third relay electrode ( 71 R) electrically coupled to the third pixel electrode ( 131 R), wherein the first light-emitting element ( 130 B) emits the light in the first wavelength region from the first light-emitting region (B), the second light-emitting element ( 130 G) emits the light in the second wavelength region from the second light-emitting region (G 1 ) and the fourth light-emitting region (G 2 ), the third light-emitting element ( 130 R) emits the light in the third wavelength region from the third light-emitting region (R), the first light-emitting region (B) is a region in which the first pixel electrode ( 131 B) and the light-emitting layer ( 132 ) are in contact, each of the second light-emitting region (G 1 ) and the fourth light-emitting region (G 2 ) is a region in which the second pixel electrode ( 131 G) and the light-emitting layer ( 132 ) are in contact, and the third light-emitting region (R) is a region in which the third pixel electrode ( 131 R) and the light-emitting layer ( 132 ) are in contact. 
     The pixel electrode  131 B is an example of the first pixel electrode, and the pixel electrode  131 G is an example of the second pixel electrode, and the pixel electrode  131 R is an example of the third pixel electrode. The relay electrode  71 B is an example of the first relay electrode, and the relay electrode  71 G is an example of the second relay electrode, and the relay electrode  71 R is an example of the third relay electrode. 
     Appendix  4   
     In the electro-optical device ( 10 ) according to a specific aspect (aspect 4) of aspect 3, in plan view, the second region (Bb 1 ) overlap any one of a first contact region (Ct_Px_B) to which the first pixel electrode ( 131 B) and the first relay electrode ( 71 B) are coupled, a second contact region (Ct_Px_G) to which the second pixel electrode ( 131 G) and the second relay electrode ( 71 G) are coupled, and a third contact region (Ct_Px_R) to which the third relay electrode ( 131 R) and the third relay electrode ( 71 R) are coupled. 
     The contact region Ct_Px_B is an example of the first contact region, and the contact region Ct_Px_G is an example of the second contact region, and the contact region Ct_Px_R is an example of the third contact region. 
     Appendix  5   
     In the electro-optical device ( 10 ) according to a specific aspect (aspect 5) of aspect 3 or 4, the first relay electrode ( 71 B) is electrically coupled to a first reflective electrode ( 62 B) and is provided between the first reflective electrode ( 62 B) and the first pixel electrode ( 131 B) in cross-sectional view, the second relay electrode ( 71 G) is electrically coupled to a second reflective electrode ( 62 G) and is provided between the second reflective electrode ( 62 G) and the second pixel electrode ( 131 G) in cross-sectional view, the third relay electrode ( 71 R) is electrically coupled to a third reflective electrode ( 62 R) and is provided between the third reflective electrode ( 62 R) and the third pixel electrode ( 131 R) in cross-sectional view, in the first light-emitting region (B), a first distance (LB) from the first reflective electrode ( 62 B) to the common electrode ( 133 ) in cross-sectional view is a distance corresponding to the first wavelength region, in the second light-emitting region (G), a second distance (LG) from the second reflective electrode ( 62 G) to the common electrode ( 133 ) in cross-sectional view is a distance corresponding to the first wavelength region, in the third light-emitting region, a third distance (LR) from the third reflective electrode ( 62 R) to the common electrode ( 133 ) in cross-sectional view is a distance corresponding to the third wavelength region, and first distance &lt;second distance &lt;third distance. 
     According to aspect 5, light corresponding to the wavelength range is emitted by an optical resonator. 
     The reflective electrode  62 B is an example of the first reflective electrode, and the reflective electrode  62 G is an example of the second reflective electrode, and the reflective electrode  62 R is an example of the third reflective electrode. The optical distance LB is an example of the first distance, and the optical distance LG is an example of the second distance, and the optical distance LR is an example of the third distance. 
     Appendix  6   
     In the electro-optical device ( 10 ) according to a specific aspect (aspect 6) of aspect 5, the first light-emitting region (B) and the third light-emitting region (R) are not adjacent to each other in the first direction and the second direction in plan view. 
     According to aspect 6, a difference between the first distance (LB) and the third distance (LR) which are optical path lengths in the optical resonator is the largest. Since the first light-emitting region (B) and the third light-emitting region (R) having a large difference in the optical path length are not adjacent in the first direction and the second direction in plan view, a step generated by the optical resonator can be suppressed to a small size. 
     Appendix  7   
     In the electro-optical device ( 10 ) according to any specific aspect (aspect 6) of aspects 1 to 6, in plan view, a fifth light-emitting region (G 2 ) that is disposed adjacent to the second light-emitting region (G 1 ) in a fourth direction intersecting the third direction and emits the light in the second wavelength range, and a fifth coloring layer (Cf_G) that is provided overlapping the fifth light-emitting region (G 2 ) and transmits the light in the second wavelength range are further included, and the first coloring layer (Cf_B) includes a third region (Bb 2 ) located between the second light-emitting region (G 1 ) and the fifth light-emitting region (G 2 ) in plan view. 
     According to aspect 4, the degree of color change can be made uniform when seen in a direction of a row or column (the second direction or the first direction) and when seen in the fourth direction. The F direction is an example of the fourth direction. The light-emitting region G 2  with a reference sign Fi is an example of the fifth light-emitting region, and the region Bb 2  is an example of the third region. 
     In aspect 7, a fifth light-emitting element ( 130  G) including the common electrode ( 133 ), a fifth pixel electrode ( 131 G), and the light-emitting layer ( 132 ) is further included, the fifth light-emitting is a region in which the fifth pixel electrode ( 131 G) and the light-emitting layer ( 132 ) are in contact, the fifth pixel electrode ( 131 G) and the fifth relay electrode ( 71 G) are coupled by a fourth contact region (Ct_Px_G), and the third region (Bb 2 ) overlaps any of the first to fourth contact regions in plan view. 
     Appendix  8   
     In the electro-optical device ( 10 ) according to any specific aspect of aspects 1 to 7, in plan view, the second region (Bb 1 ) is provided in contact with the second coloring layer (Cf_G), the third coloring layer (Cf_R), and the fourth coloring layer (Cf_G), and the second coloring layer (Cf_G) and the fourth coloring layer (Cf_G) are not in contact. 
     Appendix  9   
     An electronic apparatus ( 300 ) according to aspect 9 includes an electro-optical device ( 10 ) according to any one of aspects 1 to 8.