Patent Publication Number: US-11659752-B2

Title: Electro-optical device and electronic device

Description:
BACKGROUND 
     1. Technical Field 
     The disclosure relates to an electro-optical device and an electronic device. 
     2. Related Art 
     According to an electro-optical device including a light-emitting element, such as an organic electroluminescent (EL) element, a structure is known in which a color filter transmitting light in a desired wavelength region is included on a sealing layer covering the light-emitting element in order to achieve color display. Further, according to such an electro-optical device, one display is typically formed with pixels including a plurality of sub pixels. 
     Furthermore, a sub pixel provided in the electro-optical device includes a light-emitting element having a light-emitting region, a supply circuit outputting electric power to be supplied to the light-emitting element, and a contact region for electrically connecting the supply circuit to the light-emitting element. For example, JP-A-2009-282190 discloses an electro-optical device in which one pixel is formed with three sub pixels of primary colors in red, green, and blue. JP-A-2009-282190 states that the light-emitting element is electrically connected to the supply circuit through a contact region in the electro-optical device. 
     Incidentally, the arrangement of the sub pixels are designed to be arrayed such that the aperture ratio is increased by enlarging the size of the light-emitting element. Thus, the light-emitting element is disposed to have a size that is as large as possible. However, the contact region is provided between the light-emitting elements arrayed to have a size that is as large as possible, and there exist, in the above-described electro-optical device, a portion at which the light-emitting elements of the sub pixels are located adjacent to each other through the contact region and a portion at which the light-emitting elements of the sub pixels are located adjacent to each other without the contact region being interposed. Accordingly, in a case where each color filter is disposed on each light-emitting element, the distance between a light-emitting element of one sub pixel and a color filter located adjacent to the one sub pixel varies between the sub pixels. In a case where the above-described distance varies between the sub pixels, for one viewing angle, when light emitted from a light-emitting element of one sub pixel passes through a color filter located adjacent to the one sub pixel and a change in color occurs, the light emitted from the light-emitting element of another sub pixel may not pass through the color filter located adjacent to the sub pixel above and a change in color may not occur. As described above, in a case where the distance between the light-emitting element of the one sub pixel and the color filter located adjacent to the one sub pixel varies between the sub pixels, a variation in color change may occur depending on the viewing angle. 
     SUMMARY 
     According to the disclosure, a variation in color change depending on a viewing angle is suppressed even when an aperture ratio is increased. 
     An electro-optical device according to one aspect of the disclosure includes a plurality of pixels arrayed in a first direction and a second direction intersecting with the first direction, each of the plurality of pixels including a first sub pixel and a second sub pixel that are arrayed in the first direction, a fourth sub pixel and a third sub pixel that are arrayed in the first direction, the fourth sub pixel and the first sub pixel being arrayed in the second direction, and the third sub pixel and the second sub pixel being arrayed in the second direction, and a color filter corresponding to each of the first sub pixel, the second sub pixel, the third sub pixel, and the fourth sub pixel, each of the first sub pixel, the second sub pixel, the third sub pixel, and the fourth sub pixel including a light-emitting element including a light-emitting region, a supply circuit for supplying current to the light-emitting element, and a contact region in which a contact for electrically connecting the light-emitting element to the supply circuit is disposed, and the contact region overlapping with an intersection point of boundary lines that partition the light-emitting region provided in each of the first sub pixel, the second sub pixel, the third sub pixel, and the fourth sub pixel. 
     According to one aspect of the disclosure, the intersection point of the boundary lines that partition each light-emitting region is located away from the center of each light-emitting region, and thus a size reduction of the light-emitting region is suppressed by providing the contact region. 
     Furthermore, the contact region is disposed to overlap with the intersection point, and thus the contact region is able to be disposed on a part of an adjacent sub pixel. Further, the contact region of the sub pixel is disposed on a part of one sub pixel and a part of the adjacent sub pixel, and the contact region is disposed across a boundary line. Accordingly, the contact region is disposed at equal intervals among the sub pixels, and the intervals between the light-emitting regions are equal. The intervals between the light-emitting regions are equal, and thus the variation in color change depending on the viewing angle is suppressed. As described above, the variation in color change depending on the viewing angle is suppressed while the reduction of the light-emitting region is suppressed. 
     An electro-optical device according to one aspect of the disclosure includes a plurality of pixels arrayed in a first direction and a second direction intersecting with the first direction, each of the plurality of pixels including a first sub pixel and a second sub pixel that are arrayed in the first direction, and a fourth sub pixel and a third sub pixel that are arrayed in the first direction, the fourth sub pixel and the first sub pixel being arrayed in the second direction, and the third sub pixel and the second sub pixel being arrayed in the second direction, and including a color filter corresponding to each of the first sub pixel, the second sub pixel, the third sub pixel, and the fourth sub pixel, 
     each of the first sub pixel, the second sub pixel, the third sub pixel, and the fourth sub pixel including a light-emitting element having a light-emitting region and a supply circuit for supplying current to the light-emitting element, and the light-emitting region interiorly including a contact region in which a contact for electrically connecting the supply circuit to the light-emitting element is disposed. 
     According to one aspect of the disclosure, the contact region is disposed inside the light-emitting region and the contact region is not disposed outside the light-emitting region, and thus the interval between the light-emitting regions is able to be prevented from varying due to the presence of the contact region. Accordingly, the intervals between the light-emitting regions are equalized, and thus the variation in color change depending on the viewing angle is suppressed. 
     Alternatively, according to the above aspect, a distance between a light-emitting region of a second sub pixel and a light-emitting region of a first sub pixel in one pixel may be substantially equal to a distance between the light-emitting region of the second sub pixel of the one pixel and a light-emitting region of a first sub pixel of a pixel located adjacent to the one pixel in the first direction, and a distance between a light-emitting region of a third sub pixel and a light-emitting region of a fourth sub pixel in the one pixel may be substantially equal to a distance between the light-emitting region of the third sub pixel of the one pixel and a light-emitting region of a fourth sub pixel of a pixel located adjacent to the one pixel in the first direction. 
     According to the above aspect, the distance between a light-emitting region of the first sub pixel and a light-emitting region of the second sub pixel in the one pixel is substantially equal to the distance between the light-emitting region of the second sub pixel of the one pixel and a light-emitting region of a first sub pixel of the pixel located adjacent to the one pixel in the first direction, and thus the distance between the light-emitting region of the first sub pixel and an end portion of a color filter of a pixel located adjacent to the first sub pixel in the first direction is substantially equal to the distance between the light-emitting region of the second sub pixel and an end portion of a color filter of a pixel located adjacent to the second sub pixel in the first direction. The above two distances are substantially equal to each other, and the variation in color change in the first direction occurs at substantially identical viewing angles, and thus the variation in color change depending on the viewing angle in the first direction, the variation being caused by the variation in the distances between the light-emitting regions arrayed in the first direction, is suppressed. 
     Alternatively, according to the above aspect, a distance between a light-emitting region of a fourth sub pixel and a light-emitting region of a first sub pixel in one pixel may be substantially equal to a distance between the light-emitting region of the fourth sub pixel of the one pixel and a light-emitting region of a first sub pixel of a pixel located adjacent to the one pixel in the second direction, and a distance between a light-emitting region of a third sub pixel and a light-emitting region of a second sub pixel in the one pixel may be substantially equal to a distance between the light-emitting region of the third sub pixel of the one pixel and a light-emitting region of a second sub pixel of a pixel located adjacent to the one pixel in the second direction. 
     According to the above aspect, in a similar manner as in the first direction, the variation in color change depending on the viewing angle in the second direction, the variation being caused by the variation in the distances between the light-emitting regions arrayed in the second direction, is suppressed. 
     Alternatively, according to the above aspect, a relationship between color of one sub pixel among the first sub pixel, the second sub pixel, the third sub pixel, and the fourth sub pixel, and color of a sub pixel disposed in the first direction with respect to the one sub pixel, may be uniquely determined in accordance with the color of the one sub pixel. 
     Typically in a case where the color of the color filters located in one direction with respect to the sub pixels of identical colors varies, light emitted from sub pixels of identical colors each causes different color changes when a color change occurs depending on the viewing angle in one direction, and the color change depending on the viewing angle varies. On the other hand, according to the above aspect, the relationship between the color of one sub pixel and the color of the sub pixel disposed in the first direction with respect to the one sub pixel is uniquely determined in accordance with the color of the one sub pixel, and thus the color of the color filter located in the first direction with respect to the sub pixel of the identical color is uniquely determined. Accordingly, a uniquely determined color change occurs in sub pixels of identical colors when a color change occurs depending on one viewing angle in the first direction, and thus the variation in the color of the color filter located in the first direction, the variation being caused by the variation in color change depending on the viewing angle in the first direction, is suppressed. 
     Alternatively, according to the above aspect, the relationship between the color of one sub pixel among the first sub pixel, the second sub pixel, the third sub pixel, and the fourth sub pixel, and the color of the sub pixel disposed in the second direction with respect to the one sub pixel, may be uniquely determined in accordance with the color of the one sub pixel. 
     According to the above aspect, in a similar manner as in the first direction, the variation in color change depending on the viewing angle in the second direction, the variation being caused by the variation in the color of the color filter disposed in the second direction, is suppressed. 
     Alternatively, according to the above aspect, when a direction inclined at a first angle with respect to the first direction and inclined at a second angle with respect to the second direction is defined as a third direction, the contact regions are arrayed in the third direction, and each of the first sub pixel, the second sub pixel, the third sub pixel, and the fourth sub pixel includes a reflective electrode electrically connected to the supply circuit, an intermediate electrode, and a pixel electrode, and a first contact for electrically connecting the reflective electrode to the intermediate electrode and a second contact for electrically connecting the intermediate electrode to the pixel electrode may be disposed in the contact region. 
     According to the above aspect, two contacts are disposed within one contact region and the two contacts are concentrated at one location, and thus the distance between the two contacts is shortened and the wiring is able to be smoothly performed. In addition, the two contacts are concentrated at one location, and thus the contact region is narrowed, ensuring a wider light-emitting region. 
     Alternatively, according to the above aspect, when a direction inclined at the first angle with respect to the first direction and inclined at the second angle with respect to the second direction is defined as a third direction, the distance between the light-emitting region of one sub pixel among the first sub pixel, the second sub pixel, the third sub pixel, and the fourth sub pixel and the light-emitting region of a sub pixel disposed in the third direction with respect to the one sub pixels, may be constant. 
     According to the above aspect, in a similar manner as in the first and second directions, the variation in color change depending on the viewing angle in the third direction, the variation being caused by the variation in the distance between the light-emitting regions arrayed in the third direction, is suppressed. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The disclosure will be described with reference to the accompanying drawings, wherein like numbers reference like elements. 
         FIG.  1    is a block diagram illustrating an example of a structure of an electro-optical device  1  according to some exemplary embodiments. 
         FIG.  2    is an equivalent circuit diagram illustrating an example of a structure of a pixel circuit  100 . 
         FIG.  3    is a plan view illustrating a first example of a structure of a display  12 . 
         FIG.  4    is a plan view illustrating a second example of the structure of the display  12 . 
         FIG.  5    is a plan view illustrating a third example of the structure of the display  12 . 
         FIG.  6    is a plan view illustrating a fourth example of the structure of the display  12 . 
         FIG.  7    is a partial cross-sectional view illustrating the first example of the structure of the display  12 . 
         FIG.  8    is a partial cross-sectional view illustrating the second example of the structure of the display  12 . 
         FIG.  9    is a plan view illustrating the first example of the structure of the display  12  in Modified Example 1. 
         FIG.  10    is a plan view illustrating the second example of the structure of the display  12  in Modified Example 1. 
         FIG.  11    is a plan view illustrating the first example of the structure of the display  12  in Modified Example 2. 
         FIG.  12    is a plan view illustrating the second example of the structure of the display  12  in Modified Example 2. 
         FIG.  13    is a plan view illustrating the third example of the structure of the display  12  in Modified Example 2. 
         FIG.  14    is a partial cross-sectional view illustrating the first example of the structure of the display  12  in Modified Example 2. 
         FIG.  15    is a partial cross-sectional view illustrating the second example of the structure of the display  12  in Modified Example 2. 
         FIG.  16    is a partial cross-sectional view illustrating the third example of the structure of the display  12  in Modified Example 2. 
         FIG.  17    is a plan view illustrating an example of the structure of the display  12  in Modified Example 3. 
         FIG.  18    is a partial cross-sectional view illustrating the example of the structure of the display  12  in Modified Example 3. 
         FIG.  19    is a plan view illustrating an example of the structure of the display  12  in Modified Example 4. 
         FIG.  20    is a plan view illustrating an example of the structure of the display  12  in Modified Example 5. 
         FIG.  21    is a perspective view illustrating a head mounted display  300  according to the disclosure. 
         FIG.  22    is a perspective view illustrating a personal computer  400  according to the disclosure. 
     
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     Some exemplary embodiments of a printing apparatus are described below while referencing the accompanying drawings. Note that, in each drawing, the dimension and the scale of each portion are appropriately changed from the actual dimension and scale. In addition, various technical limitations are given to the exemplary embodiments described below because the exemplary embodiments are some specific examples of a present technology, however, the scope of the disclosure is not particularly limited to the exemplary embodiments unless stated in the following descriptions. 
     EXEMPLARY EMBODIMENT 
     Hereafter, the electro-optical device  1  of some exemplary embodiments will be described. 
     Outline of Electro-Optical Device 
       FIG.  1    is a block diagram illustrating an example of the structure of the electro-optical device  1  according to some exemplary embodiments. As exemplified in  FIG.  1   , the electro-optical device  1  includes a display panel  10  and a control circuit  20 . The display panel  10  includes a plurality of sub pixels Px. The control circuit  20  controls operation of the display panel  10 . 
     Digital image data video is transmitted, from a host device that is not depicted, to the control circuit  20  in synchronization with a synchronization signal. Note that herein, image data video is digital data that defines a gradation level to be displayed by each of the sub pixels Px of the display panel  10 . In addition, the synchronization signal includes a vertical synchronization signal, a horizontal synchronization signal, a dot clock signal, and the like. The control circuit  20  generates a control signal Ctr for controlling the operation of the display panel  10  based on the synchronization signal, and transmits the generated control signal Ctr to the display panel  10 . In addition, the control circuit  20  generates an analog image signal Vid based on the image data video and transmits a generated image signal Vid to the display panel  10 . Note that herein, the image signal Vid regulates the luminance of the light-emitting element of the sub pixel Px such that each of the sub pixels Px displays the gradation specified by the image data video. 
     As exemplified in  FIG.  1   , the display panel  10  includes M pieces of scanning lines  13  extending in a +X direction, 3N pieces of data lines  14  extending in a +Y direction, a display  12  including “M×3N pieces” of pixel circuits  100  arrayed corresponding to the intersections of the M pieces of the scanning lines  13  with the 3N pieces of the data lines  14 , and a drive circuit  11  for driving the display  12  (M is a natural number greater than or equal to 1, N is a natural number greater than or equal to 1). Hereafter, in order to distinguish the plurality of sub pixels Px, the plurality of scanning lines  13 , and the plurality of data lines  14  from one another, rows are referred to as a first row, a second row, . . . , an M-th row in this order from the +Y direction to a −Y direction (hereafter, the +Y direction and the −Y direction are collectively referred to as a “Y-axis direction”), columns are referred to as a first column, a second column, . . . , a 3N-th column in this order from a −X direction to the +X direction (hereafter, the +X direction and the −X direction are collectively referred to as an “X-axis direction”). Further, in the following description, a +Z direction (upward direction) and a −Z direction (downward direction) intersecting with the X-axis direction and the Y-axis direction are collectively referred to as a “Z-axis direction”. Furthermore, as depicted in  FIG.  1   , the +X direction and the plus +Y direction are referred to as a “direction A”, the −X direction and the +Y direction are referred to as a “direction B”, the −X direction and the −Y direction are referred to as a “direction C”, and the +X direction and the −Y direction are referred to as a “direction D”. 
     A plurality of pixel circuits  100  provided in the display  12  includes a pixel circuit  100  capable of displaying red (abbreviated as R), a pixel circuit  100  capable of displaying green (abbreviated as G), and a pixel circuit  100  capable of displaying blue (abbreviated as B). Furthermore, in one exemplary embodiment, it is assumed in one example that, among the first column to the 3N-th column, the pixel circuit  100  capable of displaying R is disposed in a (3n−2)-th column, the pixel circuit  100  capable of displaying G is disposed in a (3n−1)-th column, and the pixel circuit  100  capable of displaying B is disposed in a 3n-th column, where n is a natural number satisfying 1≤n≤N. As exemplified in  FIG.  1   , a driving circuit  11  includes a scanning line driving circuit  111  and a data line driving circuit  112 . 
     The scanning line driving circuit  111  sequentially scans (selects) the scanning lines  13  of the first row to the M-th row. Specifically, the scanning line driving circuit  111  sequentially sets, in one frame period, scanning signals Gw[1] to Gw[M] to be output to each of the scanning lines  13  of the first row to the M-th row to predetermined selection electrical potentials for each horizontal scanning period, and then sequentially selects the scanning lines  13  in units of rows for each horizontal scanning period. In other words, the scanning line driving circuit  111  sets the scanning signal Gw[m] to be output to the scanning line  13  of an m-th row to a predetermined selection electrical potential during an m-th horizontal scanning period of a one frame period, and thus selects the scanning line  13  of the m-th row. Note that the one frame period is a period during which the electro-optical device  1  displays one image. 
     The data line driving circuit  112  generates, based on the image signal Vid and the control signal Ctr transmitted from the control circuit  20 , analog data signals Vd[1] to Vd[3N] that define the gradations to be displayed by each pixel circuit  100 , and outputs generated data signals Vd[1] to Vd[3N] to the 3N pieces of data lines  14  for each horizontal scanning period. In other words, the data line driving circuit  112  outputs a data signal Vd[k] to a data line  14  of a k-th column in each horizontal scanning period. Note that, in one exemplary embodiment, although the image signal Vid to be output from the control circuit  20  is an analog signal, the image signal Vid to be output from the control circuit  20  may be a digital signal. In this case, the data line driving circuit  112  D/A-converts the image signals Vid to the analog data signals Vd[1] to Vd[3N]. 
       FIG.  2    is an equivalent circuit diagram illustrating an example of the structure of the pixel circuit  100 .  FIG.  2    exemplifies the pixel circuit  100  in the m-th row and the k-th column. 
     The pixel circuit  100  includes a light-emitting element  3  and a supply circuit  40  for outputting a current to be supplied to the light-emitting element  3 . 
     The light-emitting element  3  includes a pixel electrode  31 , a light-emitting function layer  32 , and a counter electrode  33 . The pixel electrode  31  functions as a positive electrode for supplying holes to the light-emitting function layer  32 . The counter electrode  33  is electrically connected to a feed line  16  that is set at a voltage potential Vct that is a power-supply voltage on a low voltage potential side of the pixel circuit  100 , and functions as a negative electrode for supplying electrons to the light-emitting function layer  32 . The holes supplied by the pixel electrode  31  and the electrons supplied by the counter electrode  33  are then coupled in the light-emitting function layer  32 , and the light-emitting function layer  32  emits white light. As will be described later in detail, a color filter  81 R colored in red is disposed to overlay the light-emitting element  3  (hereafter referred to as light-emitting element  3 R) included in the pixel circuit  100  capable of emitting R light. A color filter  81 B colored in blue is disposed to overlay the light-emitting element  3  (hereafter referred to as light-emitting element  3 B) included in the pixel circuit  100  capable of emitting B light. Furthermore, a color filter  81 G colored in green is disposed to overlay a light-emitting element  3  (hereafter referred to as light-emitting element  3 G) included in the pixel circuit  100  capable of emitting G light. Accordingly, a full color display is enabled using the light-emitting elements  3 R,  3 B, and  3 G. 
     The supply circuit  40  includes P-channel type transistors  41  and  42 , and a holding capacitor  44 . Note that one or both of the transistors  41  and  42  may be an N-channel type transistor. Also note that, in one exemplary embodiment, although a case where the transistors  41  and  42  are thin film transistors is exemplified, the transistors  41  and  42  may be field effect transistors, such as metal-oxide-semiconductor field-effect transistors (MOSFET). 
     The gate of the transistor  41  is electrically connected to the scanning line  13  of the m-th row, and one of the source and the drain of the transistor  41  is electrically connected to the data line  14  of the k-th column. The other of the source and the drain of the transistor  41  is electrically connected to the gate of the transistor  42  and one of two electrodes of the holding capacitor  44 . The gate of the transistor  42  is electrically connected to the other of the source and the drain of the transistor  41  and one electrode of the holding capacitor  44 . One of the source and the drain of the transistor  42  is electrically connected to the pixel electrode  31 . The other of the source and the drain of the transistor  42  is electrically connected to a power supply line  15  that is set to a voltage potential Ve 1  that is a power-supply voltage on a high voltage potential side of the pixel circuit  100 . The one electrode of the two electrodes of the holding capacitor  44  is electrically connected to the other of the source and the drain of the transistor  41  and the gate of the transistor  42 . The other electrode of the two electrodes of the holding capacitor  44  is electrically connected to the power supply line  15 . The holding capacitor  44  functions to hold a voltage potential of the gate of the transistor  42 . 
     The scanning line driving circuit  111  sets the scanning signal Gw[m] to a predetermined selection electrical potential and selects the scanning line  13  of the m-th row, and the transistor  41  provided at the sub pixel Px[m][k] of the m-th row and the k-th column is then turned on. Furthermore, when the transistor  41  is turned on, the data signal Vd[k] is transmitted from the data line  14  of the kth column to the gate of the transistor  42 . In this case, the transistor  42  supplies current to the light-emitting element  3  in accordance with the voltage potential, more precisely, in accordance with a difference of the voltage potential between the gate and the source, of the data signal Vd[k] transmitted to the gate. In other words, the transistor  42  is a driving transistor for supplying a current to the light-emitting element  3 . The light-emitting element  3  emits light with luminance in accordance with a magnitude of the current supplied from the transistor  42 , in other words, with the luminance in accordance with the voltage potential of the data signal Vd[k]. Subsequently, when the scanning line driving circuit  111  releases the selection of the scanning line  13  of the m-th row and the transistor  41  is turned off, the voltage potential of the gate of the transistor  42  is retained by the holding capacitor  44 . Accordingly, even after the transistor  41  has turned off, the light-emitting element  3  is able to emit light with the luminance in accordance with the data signal Vd[k]. 
     Although not depicted in  FIG.  2   , a component that electrically connects the pixel electrode  31  of the light-emitting element  3  to the supply circuit  40  is referred to as a contact  7  (refer to  FIG.  3   ). Each of the sub pixels Px includes the light-emitting element  3 , the supply circuit  40 , and a contact region Ca in which the contact  7  is disposed. The contact region Ca is a region in which the contact  7  is able to be disposed. The contact  7  electrically connects the pixel electrode  31  included in the light-emitting element  3  to the supply circuit  40 . Hereafter, there are cases when the contact  7  provided in a sub pixel PxR is referred to as a contact  7 R, the contact  7  provided in a sub pixel PxG is referred to as a contact  7 G, and the contact  7  provided in a sub pixel PxB is referred to as a contact  7 B. In addition, the contact region Ca in which the contact  7 R is disposed may be referred to as a contact region CaR, the contact region Ca in which the contact  7 G is disposed may be referred to as a contact region CaG, and the contact region Ca in which the contact  7 B is disposed may be referred to as a contact region CaB. 
     Structure of Display 
     Hereafter, an example of the structure of the display  12  of some exemplary embodiments will be described with reference to  FIGS.  3  to  6   . 
       FIG.  3    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  of some exemplary embodiments is viewed from the +Z direction in which the electro-optical device  1  emits light. Note that the plan view of  FIG.  3    is illustrated excluding the color filter  81  to make the drawing more understandable. Two contacts  7  are disposed in each of the contact regions CaR and CaG, and in the plan view of  FIG.  3   , the two contacts  7  are collectively depicted as a single contact  7  in a simple manner to make the drawing more understandable. 
     Specifically,  FIG.  3    illustrates the sub pixel PxR, the sub pixel PxG, a sub pixel PxB 1 , and a sub pixel PxB 2  that form one pixel MPx 1  in the display  12 . The sub pixel PxR includes the light-emitting element  3 R in the pixel circuit  100  capable of displaying R. The sub pixel PxG includes the light-emitting element  3 G in the pixel circuit  100  capable of displaying G. The sub pixel PxB 1  includes a light-emitting element  3 B 1  in the pixel circuit  100  capable of displaying B. The sub pixel PxB 2  includes a light-emitting element  3 B 2  in the pixel circuit  100  capable of displaying B. Furthermore, current is supplied from the supply circuit  40 , included in an identical pixel circuit  100 , to the sub pixel PxB 1  and the sub pixel PxB 2 . 
     As depicted in  FIG.  3   , the sub pixel PxB 1  and the sub pixel PxG are arrayed in the +X direction. Similarly, the sub pixel PxR and the sub pixel PxB 2  are arrayed in the +X direction. In addition, the sub pixel PxB 1  and the sub pixel PxR are arrayed in the +Y direction. Similarly, the sub pixel PxG and the sub pixel PxB 2  are arrayed in the +Y direction. The sub pixel PxB 1  is connected to the sub pixel PxB 2  located in the direction A as viewed from the sub pixel PxB 1 , at a reflection layer  52  (refer to  FIG.  7   ). In one exemplary embodiment, it is assumed that light-emitting regions HaR, HaG, HaB 1 , and HaB 2  for emitting light in the +Z direction are formed with the light-emitting elements  3 R,  3 G,  3 B 1 , and  3 B 2  included in a pixel MPx, respectively. A light-emitting region Ha is opened by a pixel separation layer  34  (refer to  FIG.  7   ) in the region of the pixel electrode  31  (refer to  FIG.  7   ). 
     The shape of each of the light-emitting regions HaR, HaG, HaB 1 , and HaB 2  as viewed in a plan view from the +Z direction is octagonal. Among the sides of the light-emitting region Ha, a first side located in the direction C as viewed from the center of the light-emitting region Ha is parallel with a fifth side located in the direction A as viewed from the center of the light-emitting region Ha. Further, among the sides of the light-emitting region Ha, a second side located in the −Y direction as viewed from the center of the light-emitting region Ha is parallel with a sixth side located in +Y direction as viewed from the center of the light-emitting region Ha. Further, among the sides of the light-emitting region Ha, a third side located in the direction D as viewed from the center of the light-emitting region Ha is parallel with a seventh side located in the direction B as viewed from the center of the light-emitting region Ha. 
     Furthermore, among the sides of the light-emitting region Ha, a fourth side located in +X direction as viewed from the center of the light-emitting region Ha is parallel with an eighth side located in the −X direction as viewed from the center of the light-emitting region Ha. 
     Further, the contact region Ca included in the sub pixel Px is located in the direction A as viewed from the light-emitting region Ha included in the sub pixel Px. 
     Specifically, the contact region CaR included in the sub pixel PxR is located in the direction A with respect to the light-emitting region HaR of the sub pixel PxR, and the contact region CaG included in the sub pixel PxG is located in the direction A with respect to the light-emitting region HaG of the sub pixel PxG. Similarly, the contact region CaB 1  included in the sub pixel PxB 1  is located in the direction A with respect to the light-emitting region HaB 1  included in the sub pixel PxB 1 , and the contact region CaB 2  included in the sub pixel PxB 2  is located in the direction A with respect to the light-emitting region HaB 2  included in the sub pixel PxB 2 . 
       FIG.  4    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  of some exemplary embodiments is viewed in a plan view from the +Z direction. Note that the plan view of  FIG.  4    is illustrated excluding the color filter  81  to make the drawing more understandable. An inclined direction in  FIG.  4    is assumed to be the direction A inclined at 45 degrees with respect to the +X direction and at −45 degrees with respect to the +Y direction. 
     The contact regions Ca are arrayed in the direction A. A contact  7 B 1  is disposed in the contact region CaB 1 , and a contact  7 B 2  is disposed in the contact region CaB 2 . The contact  7 B 1  and the contact  7 B 2  electrically connect the pixel electrode  31  to the reflective layer  52  (refer to  FIG.  7   ) through a contact electrode  71  (refer to  FIG.  7   ). On the other hand, a reflective layer-barrier metal contact  7   a R for electrically connecting the reflective layer  52  to the contact electrode  71 , and a barrier metal-positive electrode contact  7   b R for electrically connecting the contact electrode  71  to the pixel electrode  31 , are arrayed in the contact region CaR. Similarly, a reflective layer-barrier metal contact  7   a G and a barrier metal-positive electrode contact  7   b G are arrayed in the contact region CaG. Here, the reason why the two contacts  7  are each disposed in the contact region CaR and the contact region CaG, will be described. A first distance adjustment layer  57  (refer to  FIG.  15   ) and a second distance adjustment layer  58  (refer to  FIG.  15   ) are layered on the sub pixel PxR, and the second distance adjustment layer  58  is layered on the sub pixel PxG. Due to the presence of the distance adjustment layers as described above, a barrier metal-positive electrode contact  7   b  is formed in the contact region CaR and the contact region CaG, avoiding a reflective layer-barrier metal contact  7   a , at another position. 
       FIG.  5    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  of some exemplary embodiments is viewed in a plan view from the +Z direction. The plan view of  FIG.  5    is illustrated further including the color filter  81  in the plan view of  FIGS.  3  and  4   . Further, the plan view of  FIG.  5    is illustrated excluding the contact region Ca to make the drawing more understandable. 
     The color filter  81 R is formed to overlap with the sub pixel PxR in a plan view from the +Z direction on the +Z side of the light-emitting element  3 R. Similarly, a color filter  81 G is formed to overlap with the sub pixel PxG in a plan view from the +Z direction on the +Z side of the light-emitting element  3 G. A color filter  81 B 1  is formed to overlap with the sub pixel PxB 1  in a plan view from the +Z direction on the +Z side of the light-emitting element  3 B 1 . A color filter  81 B 2  is formed to overlap with the sub pixel PxB 2  in a plan view from the +Z direction on the +Z side of the light-emitting element  3 B 2 . As depicted in  FIG.  5   , in one exemplary embodiment, the color filter  81  is formed in a rectangular shape in a plan view from the +Z direction. Further, as depicted in  FIG.  5   , in one exemplary embodiment, although the color filters  81  do not overlap with each other, parts of the color filters  81  may overlap with each other. In addition, with respect to the X-axis direction or the Y-axis direction, the distances between the end portions of the color filter  81  and the light-emitting region Ha located adjacent to the color filter  81  in one of the above directions are equal to each other. 
       FIG.  6    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  of some exemplary embodiments is viewed in a plan view from the +Z direction. 
     In the plan view of  FIG.  6   , the color filters  81  of the pixels MPx 1  to MPx 4  are specifically illustrated. 
       FIG.  7    is an example of a partial cross-sectional view of the display  12  taken along line E 0 -E′ 0 - e   0  in  FIG.  5   , in which a cross-sectional surface of the contact  7 B 1  is depicted. 
     As depicted in  FIG.  7   , the display  12  includes an element substrate  5 , a protective substrate  9 , and an adhesive layer  90  interposed between the element substrate  5  and the protective substrate  9 . In one exemplary embodiment, it is assumed that the electro-optical device  1  is a top emission type in which light is emitted from a protective substrate  9  side (+Z side). 
     The adhesive layer  90  is a transparent resin layer for adhesion of the element substrate  5  to the protective substrate  9 . The adhesive layer  90  is formed, for example, using a transparent resin material, such as epoxy resin. The protective substrate  9  is a transparent substrate disposed on the +Z side of the adhesive layer  90 . The protective substrate  9  protects members, such as the color filter  81  disposed on the −Z side of the protective substrate  9 . The protective substrate  9  is formed, for example, using a substrate, such as a quartz substrate. 
     The element substrate  5  includes a substrate  50 , a circuit layer  49  on the substrate  50 , an interlayer insulating layer  51  layered on the circuit layer  49 , the reflective layer  52 , a reflection-increasing layer  53 , a first insulating layer  54 , a second insulating layer  55 , a contact electrode  71 , a protective layer  72 , a light-emitting layer  30 , a sealing layer  60 , and a color filter layer  8 . Although details will be described later, the light emitting layer  30  includes the above-described light-emitting elements ( 3 R,  3 G, and  3 B). The light-emitting element  3  emits light in +Z direction and −Z direction. The color filter layer  8  includes the color filter  81 R, the color filter  81 G, and the color filter  81 B that are described above. 
     The substrate  50  may be any substrate insofar as various wirings and various circuits are capable of being mounted on the substrate  50 . Substrates, such as a silicon substrate, quartz substrate, glass substrate, and the like are used for the substrate  50 . A circuit layer  49  is formed on the +Z side of the substrate  50 . In the circuit layer  49 , various wirings, such as the scanning line  13  and the data line  14 , and various circuits, such as the driving circuit  11  and the pixel circuit  100  are formed. The interlayer insulating layer  51  is layered on the +Z side of the circuit layer  49 . 
     An insulating material, such as silicon oxide (SiO2) is used for the interlayer insulating layer  51 . The reflective layer  52  is layered on the +Z side of the interlayer insulating layer  51 . The reflective layer  52  is a component for reflecting the light emitted from the light-emitting element  3  of the light emitting layer  30  toward the side of the +Z direction. For the reflective layer  52 , for example, an alloy (AlCu) film of aluminum (Al) and copper (Cu) is formed on a titanium (Ti) film. The reflective layer  52  is a conductive layer that is reflective and is formed in an island shape for each of the sub pixels Px. 
     The reflection-increasing layer  53  is provided for enhancing the reflective property of the reflection layer  52 , and is formed of, for example, an insulating material having optical transparency. The reflection-increasing layer  53  is disposed to cover the surface of the reflection layer  52 . A member, such as silicon oxide film is formed as the reflection-increasing layer  53 . 
     The first insulating layer  54  is provided on the surface of the reflection-increasing layer  53 . Here, the first insulating layer  54  is formed along a gap  52 CT provided in the reflective layer  52 . Thus, the first insulating layer  54  has a concave portion  54   a  corresponding to the gap  52 CT. The embedded insulating film  56  is formed to fill up the concave portion  54   a . The second insulating layer  55  is provided on the surface of the first insulating layer  54 . A member, such as silicon nitride (SiN) film is formed as the first insulating layer  54  and the second insulating layer  55 . 
     The contact electrode  71  is layered on the reflective layer  52  and the protective layer  72 , and is formed along a gap  53 CT. As depicted in  FIG.  7   , the contact electrode  71  extends along the gap  53 CT to form the contact  7 B 1 . A conductive material, such as tungsten (W), titanium (Ti), titanium nitride (TiN), and the like is used for the contact electrode  71 . The protective layer  72  is layered on the second insulating layer  55 . An insulating material, such as silicon oxide is used for the protective layer  72 . 
     The first distance adjustment layer  57  and the second distance adjustment layer  58  are insulating transparent layers for adjusting the optical distance between the light-emitting element  3  of the light emitting layer  30  and the reflective layer  52  for each of the sub pixels PxR, PxG, and PxB. In one exemplary embodiment, a silicon oxide film is formed as the first distance adjustment layer  57  and the second distance adjustment layer  58 . The first distance adjustment layer  57  and the second distance adjustment layer  58  are not layered on the sub pixel PxB. In addition, the second distance adjustment layer  58  is specifically layered on the sub pixel PxG, and the first distance adjustment layer  57  is not layered on the sub pixel PxG. Accordingly, the first distance adjustment layer  57  is not depicted in  FIG.  7   . 
     The light-emitting layer  30  includes the pixel electrode  31 , the pixel separation layer  34 , the light-emitting function layer  32  layered on the pixel electrode  31  and the pixel separation layer  34  to cover the pixel electrode  31  and the pixel separation layer  34 , and the counter electrode  33  layered on the light-emitting function layer  32 . 
     The pixel electrode  31  is a transparent layer that is conductive and is formed in an island-like shape for each of the sub pixels Px. The pixel electrode  31  is layered on the second insulating layer  55 , the first distance adjustment layer  57 , and the second distance adjustment layer  58 . The pixel electrode  31  is formed using a conductive transparent material, such as Indium Tin Oxide (ITO). The counter electrode  33  is a conductive component having light transmittance and light reflectivity being arrayed across the plurality of sub pixels Px. The counter electrode  33  includes an alloy, such as a Mg alloy, Ag alloy, and the like. The pixel separation layer  34  is an insulating component disposed to cover the peripheral portion of each pixel electrode  31 . The pixel separation layer  34  is layered on the second distance adjustment layer  58 , the second insulating layer  55 , and the pixel electrode  31 . The pixel separation layer  34  includes an insulating material, such as silicon oxide. The light-emitting function layer  32  includes a hole injection layer, a hole transport layer, an organic light-emitting layer, and an electron transport layer, being disposed across the plurality of sub pixels Px. 
     As described above, holes are supplied to the light-emitting function layer  32  from a portion of the pixel electrode  31  which is not covered with the pixel separation layer  34 , and the light-emitting function layer  32  emits white light. In addition, the pixel separation layer  34  is disposed, in a plan view, to partition the plurality of pixels Px of the display  12  from one another. Note that the white light emitted from the light-emitting element  3  includes red light, green light, and blue light. Also note that in one exemplary embodiment, a structure included in a region including the light-emitting region Ha and the contact region Ca in a plan view from the +Z direction, is taken as the sub pixel Px. 
     In one exemplary embodiment, film thicknesses of the first distance adjustment layer  57  and the second distance adjustment layer  58  are adjusted, and an optical resonance structure is formed with the reflective layer  52  and the counter electrode  33 . Furthermore, the light emitted from the light-emitting function layer  32  is repeatedly reflected between the reflective layer  52  and the counter electrode  33 , and intensity of light with a wavelength corresponding to the optical distance between the reflective layer  52  and the counter electrode  33  is enhanced. The intensified light is transmitted from the counter electrode  33  to the protective substrate  9 , and is thereafter emitted toward the +Z side. In one exemplary embodiment, for example, the film thicknesses of the first distance adjustment layer  57  and the second distance adjustment layer  58  are set for each of the sub pixels Px such that the intensity of light with a wavelength of 610 nm is intensified in the sub pixel PxR, the intensity of light with a wavelength of 540 nm is intensified in the sub pixel PxG, and the intensity of light with a wavelength of 470 nm is intensified in the sub pixel PxB. Accordingly, in one exemplary embodiment, red light having the maximum luminance at a wavelength of 610 nm is emitted from the sub pixel PxR, green light having the maximum luminance at a wavelength of 540 nm is emitted from the sub pixel PxG, and blue light having the maximum luminance at a wavelength of 470 nm is emitted from the sub pixel PxB. 
     The sealing layer  60  includes a lower sealing layer  61  layered on the counter electrode  33 , a planarizing layer  62  layered on the lower sealing layer  61 , and an upper sealing layer  63  layered on the planarizing layer  62 . The lower sealing layer  61  and the upper sealing layer  63  are arrayed across the plurality of sub pixels Px and are transparent layers having insulating properties. The lower sealing layer  61  and the upper sealing layer  63  are components for preventing intrusion of moisture, oxygen and the like into the light emitting layer  30 . A member, such as silicon oxynitride (SiON) film is formed as the lower sealing layer  61  and the upper sealing layer  63 . The planarizing layer  62  is a transparent layer disposed across the plurality of sub pixels Px, and is a component for providing a flat upper surface (a surface on the +Z side). The planarizing layer  62  is formed, for example, using an inorganic material, such as epoxy resin. 
     The color filter layer  8  includes color filters  81 R,  81 G,  81 B 1 , and  81 B 2 . The color filters  81 R,  81 G,  81 B 1 , and  81 B 2  are formed on the upper sealing layer  63 . A photosensitive resin containing a pigment that allows light transmission of various colors, for example, of red, green and blue, is applied, and then patterning is performed to form the color filters  81 R,  81 G,  81 B 1 , and  81 B 2 . 
       FIG.  8    is an example of a partial cross-sectional view of the display unit  12  taken along line E 1 - e   1  in  FIG.  5   , in which the cross-sectional surface of the contact  7 B 1  is depicted. In  FIG.  8   , the descriptions of the portions that have been described with reference to the  FIG.  7    are omitted. 
     A gap  52 CT is depicted in  FIG.  7   , however, the sub pixels PxB 1  is connected to the sub pixel PxB 2  in the reflective layer  52 , and the gap  52 CT is not depicted at the portion slashed by the line E 1 - e   1  in  FIG.  5   . Accordingly, the gap  52 CT is not depicted in  FIG.  8   , and the sub pixel PxB is not depicted in  FIG.  8    because the first distance adjustment layer  57  and the second distance adjustment layer  58  are not layered on the sub pixel PxB. 
     Effects of Some Exemplary Embodiments 
     As depicted in  FIG.  3   , the contact region Ca overlaps with, in a plan view from the +Z direction, an intersection point of a boundary line that partitions the light-emitting region Ha. The boundary line is provided for evenly partitioning the light-emitting region Ha.  FIG.  3    illustrates boundary lines HL 1  and HL 2  in the X-axis direction, and boundary lines VL 1  and VL 2  in the Y-axis direction. As depicted in  FIG.  3   , the contact region CaB 1  included in the pixel MPx 1  overlaps with an intersection point P 11  of the boundary lines VL 1  and HL 1 , and the contact region CaG included in the pixel MPx 1  overlaps with an intersection point P 21  of the boundary lines VL 2  and HL 1 . Similarly, the contact region CaR included in the pixel MPx 1  overlaps with an intersection point P 12  of the boundary lines VL 1  and HL 2 , and the contact region CaB 2  included in the pixel MPx 1  overlaps with an intersection point P 22  of the boundary lines VL 2  and HL 2  as well. For example, the intersection point P 11  is located apart from the centers of the light-emitting regions HaR, HaG, HaB 1 , and HaB 2 , and thus a reduction in sizes of the light-emitting regions HaR, HaG, HaB 1 , and HaB 2  is suppressed. Furthermore, the contact region Ca is disposed to overlap with the intersection point of the boundary lines that partition the light-emitting region Ha, and thus the contact region Ca is disposed on a partial area of the adjacent another sub pixel Px. Further, the contact region Ca of one sub pixel Px is disposed on a partial area of the one sub pixel Px and a partial area of another adjacent sub pixel Px, and the contact region Ca is disposed across the boundary line. Accordingly, the contact regions Ca are arrayed at equal intervals between the sub pixels, and thus the intervals between the light-emitting regions are made equal as well. In one exemplary embodiment, as depicted in  FIG.  3   , the light-emitting region Ha has an octagonal shape formed by apexes of a quadrangle being cut. As depicted in  FIG.  3   , the contact region Ca is disposed on the cut part. As depicted in  FIG.  3   , the contact regions Ca are arrayed at equal intervals between the sub pixels Px, and thus the intervals between the light-emitting regions Ha are made equal as well. The intervals between the light-emitting regions Ha are equalized and thus a variation in color change depending on the viewing angle is suppressed. In this manner, the variation in color change depending on the viewing angle is suppressed while the reduction in size of the light-emitting region Ha is suppressed. The variation in color change depending on the viewing angle is suppressed and thus a deterioration in quality of the displayed images is suppressed. 
     Note that herein, the viewing angle is the maximum value of the angle formed by the Z-axis direction and the traveling direction of the light emitted from the light-emitting region Ha included in the sub pixel Px, with the light passing through the color filter  81  and the protective substrate  9  included in the sub pixel Px. Hereafter, the light direction described above in a plan view from the +Z direction may be referred to as a viewing angle in the direction described above. For example, when the above-described light is included in an X-Z plane, in a plan view from the +Z direction, the light direction coincides with the X-axis direction and thus the viewing angle may be referred to as a “viewing angle in the X-axis direction”. Similarly, in a case where the above-described light is included in a Y-Z plane, in a plan view from +Z direction, the above-described light direction coincides with the Y-axis direction and thus the viewing angle may be referred to as a “viewing angle in the Y-axis direction”. 
     According to the viewing angle in the X-direction, as depicted in  FIG.  3   , a distance dx 12  between the light-emitting region HaB 1  and the light-emitting region HaG in the pixel MPx 1  is substantially equal to a distance dx 34  between the light-emitting region HaG of the pixel MPx 1  and the light-emitting region HaB 1  of the pixel MPx 2  located adjacent to the pixel MPx 1  in +X direction. Note that herein, the distance dx 12  is assumed to be substantially equal to the distance dx 34 , for example, when a difference value between the distance dx 12  and the distance dx 34  is equal to or less than a predetermined threshold value. The predetermined threshold value is, for example, as much as 10% of the width of the light-emitting region Ha. The distance dx 12  is, as depicted in  FIG.  3   , the minimum distance between an apex Apx 1  located in +X direction in the light-emitting region HaB 1  of the pixel MPx 1 , and an apex Apx 2  located in the −X direction in the light-emitting region HaG of the pixel MPx 1 . Similarly, the distance dx 34  is the minimum distance between an apex Apx 3  located in +X direction in the light-emitting region HaG of the pixel MPx 1  and an apex Apx 4  located in the −X direction in the light-emitting region HaB 1  of the pixel MPx 2 . Note that the distance between the light-emitting regions Ha is not limited to the minimum distance from the apex of the light-emitting region and may be the minimum distance between the centers of the light-emitting regions Ha. Similarly, a distance dx 56  between the light-emitting region HaR and the light-emitting region HaB 2  of the pixel MPx 1  is substantially equal to a distance dx 78  between the light-emitting region HaB 2  of the pixel MPx 1  and the light-emitting region HaR of the pixel MPx 2 . In other words, the distances between the light-emitting regions Ha in the X-axis direction are constant values. The distance dx 12  is substantially equal to the distance dx 34 , and thus the angle formed by the straight line that connects the end portion located in the X direction in the color filter  81 G of the light-emitting element  3 G of the pixel MPx 1  and the apex Apx 1 , and the X-axis direction, is substantially equal to the angle formed by the straight line that connects the end portion located in the −X direction in the color filter  81 B of the light-emitting element  3 B 1  of the pixel MPx 2  and the apex Apx 3 , and the X-axis direction. A relationship between the distance dx 56  and the distance dx 78  is identical to the relationship between the distance dx 12  and the distance dx 34 . Accordingly, in a case when the viewing angle is substantially equal to the above-described two angles, both the color change of the light emitted from the light-emitting region HaB 1  of the pixel MPx 1  and the color change of the light emitted from the light-emitting region HaG of the pixel MPx 1  occur. As described above, the angles at which color changes occur in the light-emitting regions Ha located adjacent to each other in the X-axis direction are substantially equal to each other, and thus the variation in color change depending on the viewing angle in the X-axis direction, the variation being caused by the variation in distance between the light-emitting regions Ha arrayed in the X-axis direction, is suppressed. 
     According to the viewing angle in the Y-direction, as depicted in  FIG.  3   , a distance dy 12  between the light-emitting region HaB 1  and the light-emitting region HaR in the pixel MPx 1  is substantially equal to a distance dy 34  between the light-emitting region HaR of the pixel MPx 1  and the light-emitting region HaB 1  of the pixel MPx 3  located adjacent to the pixel MPx 1  in the +Y direction. Note that herein, the distance dy 12  is assumed to be substantially equal to the distance dy 34  when, for example, the difference value between the distance dy 12  and the distance dy 34  is equal to or less than a predetermined threshold value. The predetermined threshold value is, for example, as much as 10% of the height of the light-emitting region Ha. The distance dy 12  is, as depicted in  FIG.  3   , the minimum distance between an apex Apy 1  located in the +Y direction in the light-emitting region HaB 1  of the pixel MPx 1 , and an apex Apy 2  located in the −Y direction in the light-emitting region HaR of the pixel MPx 1 . Similarly, the distance dy 34  is the minimum distance between an apex Apy 3  located in the +Y direction in the light-emitting region HaR of the pixel MPx 1  and an apex Apy 4  located in the −Y direction in the light-emitting region HaB 1  of the pixel MPx 3 . Similarly, a distance dy 56  between the light-emitting region HaG and the light-emitting region HaB 2  in the pixel MPx 1  is substantially equal to a distance dy 78  between the light-emitting region HaB 2  of the pixel MPx 1  and the light-emitting region HaG of the pixel MPx 3 . In other words, the distances between the light-emitting regions Ha in the Y-axis direction are constant values. The distance dy 12  is substantially equal to the distance dy 34  and the distance dy 56  is substantially equal to the distance dy 78 , and thus in a similar manner as in the X-direction, the variation in color change depending on the viewing angle in the Y-axis direction, the variation being caused by to the variation in distance between the light-emitting regions Ha arrayed in the Y-axis direction, is suppressed. 
     Further, according to the viewing angle in the X-axis direction, as depicted in  FIG.  6   , the relationship between the color of the one sub pixel Px and the color of the sub pixel located adjacent to the above-described one sub pixel in the +X direction, is uniquely determined in accordance with the color of the above-described one sub pixel. Specifically, the color filter  81  located adjacent to each of the sub pixels PxR of the pixels MPx 1  to MPx 4  in the +X direction is the color filter  81 B. Similarly, the color filter  81  located adjacent to each of the sub pixels PxG of the pixels MPx 1  to MPx 4  in the +X direction is the color filter  81 B. The color filter  81  located adjacent to the sub pixel PxB of each of the pixels MPx 1  to MPx 4  in the +X direction is the color filter  81 R or  81 G. Furthermore, the ratio in which the color filters  81 R are located adjacent to each other is equal to the ratio in which the color filters  81 G are located adjacent to each other. Accordingly, a uniquely determined color change occurs in the sub pixel Px of identical color when a color change occurs at one viewing angle in the +X direction, and thus the variation in color change depending on the viewing angle caused by the color variation of the color filter  81  located in the +X direction is suppressed. The description above in the +X direction is identical to a description in the −X direction. 
     In addition, according to the color change depending on the viewing angle in the Y-axis direction, as depicted in  FIG.  6   , the relationship between the color of the one sub pixel Px and the color of the sub pixel located adjacent to the above-described one sub pixel in the +Y direction, is uniquely determined in accordance with the color of the above-described one sub pixel. Specifically, the color filter  81  located adjacent to each of the sub pixels PxR of the pixels MPx 1  to MPx 4  in the +Y direction is the color filter  81 B. Similarly, the color filter  81  located adjacent to each of the sub pixels PxG of the pixels MPx 1  to MPx 4  in the +Y direction is the color filter  81 B. The color filter  81  located adjacent to each of the sub pixels PxB of the pixels MPx 1  to MPx 4  in the +Y direction is the color filter  81 R or  81 G. Furthermore, the ratio in which the color filters  81 R are located adjacent to each other is equal to the ratio in which the color filters  81 G are located adjacent to each other. Accordingly, a uniquely determined color change occurs in the sub pixel Px of identical color when a color change occurs at one viewing angle in the +Y direction, and thus the variation in color change depending on the viewing angle caused by the color variation of the color filter  81  located in the +Y direction is suppressed. The description above in the +Y direction is identical to a description in the −Y direction. 
     Furthermore, according to the relationship between the color change depending on the viewing angle in the X-axis direction and the color change depending on the viewing angle in the Y-axis direction, the color filter  81  located adjacent to the sub pixels PxR and PxG in the X-axis direction and the Y-axis direction with respect to the sub pixels PxR and PxG is the color filter  81 B. In addition, the color filter  81  located adjacent to the sub pixel PxB in the X-axis direction and the Y-axis direction with respect to the sub pixel PxB is the color filter  81 R or  81 G. As described above, in one exemplary embodiment, the disposal of adjacent colors in the X-axis direction is identical to the disposal of adjacent colors in the Y-axis direction, and thus the color change depending on the viewing angle in the X-axis direction is made identical to the color change depending on the viewing angle in the Y-axis direction. 
     Similarly, according to the color change depending on the direction A, the direction B, the direction C, and the direction D, the relationship between the color of the one sub pixel Px and the color of the sub pixel located adjacent to the above-described one sub pixel in the +Y direction is uniquely determined in accordance with the color of the above-described one sub pixel. Accordingly, the variation in color change related to the color filters  81  located adjacent to each other in any of the direction A, the direction B, the direction C, and the direction D with respect to the light-emitting region Ha is suppressed. 
     Further, as depicted in  FIG.  4   , the contact regions Ca are arrayed in the direction A that is inclined at 45 degrees with respect to the +X direction and is inclined at −45 degrees with respect to the +Y direction. Furthermore, the two contacts  7  are disposed within the contact regions CaR and CaG, and the two contacts  7  are concentrated at one location, thus the distance between the two contacts  7  is shortened and wiring is able to be smoothly performed. Further, the two contacts  7  are concentrated at one location, thus the contact region Ca is narrowed, and the light-emitting region Ha is widened. 
     Further, according to the viewing angle in the direction A, as depicted in  FIG.  4   , the distances between the light-emitting regions Ha of the sub pixels Px and the light-emitting regions Ha of the sub pixels Px disposed in the direction A with respect to the above-described sub pixels Px, are constant values. For example, the sub pixel PxB 2  of the pixel MPx 1  is disposed in the direction A with respect to the sub pixel PxB 1  of the pixel MPx 1 . In addition, the sub pixel PxB 1  of the pixel MPx 4  is disposed in the direction A with respect to the sub pixel PxB 2  of the pixel MPx 1 . The pixel MPx 4  is disposed adjacent to the pixel MPx 1  in the direction A. According to the distances being constant values, the distance dxy 12  between the light-emitting region HaB 1  of the pixel MPx 1  and the light-emitting region HaB 2  of the pixel MPx 1  is substantially equal to the distance dxy 34  between the light-emitting region HaB 2  of the pixel MPx 1  and the light-emitting region HaB 1  of the pixel MPx 4 . The distance dx 12 , as depicted in  FIG.  4   , is the minimum distance between the apex Apxy 1  located in the direction A in the light-emitting region HaB 1  of the pixel MPx 1  and the apex Apxy 2  located in the direction C in the light-emitting region HaB 2  of the pixel MPx 1 . Similarly, the distance dx 34 , as depicted in  FIG.  4   , is the minimum distance between the apex Apxy 3  in the direction A in the light-emitting region HaB 2  of the pixel MPx 1  and the apex Apxy 4  in the direction C in the light-emitting region HaB 1  of the pixel MPx 4 . The distance dxy 12  is substantially equal to the distance dxy 34 , and thus in a similar manner as in the X-axis direction and the Y-axis direction, the variation in color change depending on the viewing angle caused by the variation in the distances between the light-emitting regions Ha arrayed in the direction A and the direction C is suppressed. 
     In one exemplary embodiment, the +X direction is an example of a “first direction”, and the +Y direction is an example of a “second direction”. In addition, the sub pixel PxB 1  is an example of a “first sub pixel”, the sub pixel PxG is an example of a “second sub pixel”, the sub pixel PxR is an example of a “fourth sub pixel”, and the sub pixel PxB 2  is an example of the “third sub pixel”. 
     In one exemplary embodiment, an angle of 45 degrees is an example of a “first angle”, an angle of −45 degrees is an example of a “second angle”, and the direction A is an example of a “third direction”. Further, the contact electrode is an example of an “intermediate electrode”, and the reflective layer  52  is an example of a “reflective electrode”. Furthermore, the reflective layer-barrier metal contact  7   a  is an example of a “first contact”, and the barrier metal-positive electrode contact  7   b  is an example of a “second contact”. 
     MODIFIED EXAMPLES 
     Each of the above exemplary embodiments may be variously modified. Specific modes of modification are exemplified below. Two or more exemplary embodiments freely selected from the following examples may be appropriately combined within a range that is not mutually contradictory. Note that in the modified examples exemplified below, the elements referenced in the above descriptions are appropriately omitted for the elements of which operations and functions are equivalent to the operations and functions of the elements in the exemplary embodiments. 
     Modified Example 1 
       FIG.  9    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  in Modified Example 1 is viewed in a plan view from the +Z direction. Note that the plan view of  FIG.  9    is illustrated excluding the color filter  81  and the contact region Ca to make the drawing more understandable. Also note that in Modified Example 1, a structure included in a region including the light-emitting region Ha and the contact region Ca in a plan view from the +Z direction is taken as the sub pixel Px. 
     In one exemplary embodiment, the sub pixel PxB 1  is connected to sub pixel PxB 2  in the reflective layer  52 . Whereas in Modified Example 1, the sub pixel PxB 1  is not connected to the sub pixel PxB 2 , and is separated from the sub pixel PxB 2 . The sub pixel PxB that is one of the separated sub pixels is to be connected to the pixel circuit  100  of the other sub pixel PxB in the circuit layer  49  to drive the sub pixels PxR, PxG, PxB 1 , and PxB 2  of Modified Example 1 using a three pixel circuit. 
       FIG.  10    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  in Modified Example 1 is viewed in a plan view from the +Z direction. The plan view of  FIG.  10    is a plan view of  FIG.  9    in which the color filter  81  is further included. Note that the plan view of  FIG.  10    is illustrated excluding the contact region Ca to make the drawing more understandable. 
     As depicted in  FIG.  10   , the disposed location of the color filter  81  in Modified Example 1 is identical to the disposed location of the color filter  81  in one exemplary embodiment. Accordingly, color change features depending on the viewing angle in the X-axis direction and color change features depending on the viewing angle in the Y-axis direction are identical to features in one exemplary embodiment. 
     Second Modified Example 
       FIG.  11    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  in Modified Example 2 is viewed in a plan view from the +Z direction. Note that the plan view of  FIG.  11    is illustrated excluding the color filter  81  and the contact region Ca to make the drawing more understandable. 
     Note that in Modified Example 2, a structure included in a region including the light-emitting region Ha and the contact region Ca in a plan view from the +Z direction is taken as the sub pixel Px. 
     In Modified Example 2, the sub pixel PxB 1  and the sub pixel PxB 2  are arrayed in the +X direction. Similarly, the sub pixel PxR and the sub pixel PxG are arrayed in the +X direction. In addition, the sub pixel PxB 1  and the sub pixel PxR are arrayed in the +Y direction. Similarly, the sub pixel PxB 2  and the sub pixel PxG are arrayed in the +Y direction. The sub pixel PxB 1  is connected to the sub pixel PxB 2  located in the +X direction as viewed from the sub pixel PxB 1  in the reflective layer  52 . As described above, the sub pixels Px in Modified Example 2 are disposed such that the sub pixel PxB 2  and the sub pixel PxG are interchanged with each other from the disposal of the sub pixels Px in one exemplary embodiment. 
     In Modified Example 2, the sub pixel PxB 1  is an example of the “first sub pixel”, and the sub pixel PxB 2  is an example of the “second sub pixel”. In addition, the sub pixel PxR is an example of the “fourth sub pixel”, and the sub pixel PxG is an example of the “third sub pixel”. 
       FIG.  12    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  in Modified Example 2 is viewed in a plan view from the +Z direction. The plan view of  FIG.  12    is illustrated further including the color filter  81  in the plan view of  FIG.  11   . Note that the plan view of  FIG.  12    is illustrated excluding the contact region Ca to make the drawing more understandable. 
     The color filter  81 R is formed to overlap with the sub pixel PxR on the +Z side of the light-emitting region HaR in a plan view from the +Z direction. Similarly, the color filter  81 G is formed to overlap with the sub pixel PxG on the +Z side of the light-emitting region HaG in a plan view from the +Z direction. The color filter  81 B is formed to overlap with the sub pixels PxB 1  and PxB 2  on the +Z side of the light-emitting regions HaB 1  and HaB 2  in a plan view from the +Z direction. The color filter  81 B is a common color filter for the sub pixels P×B arrayed in the X-axis direction. 
       FIG.  13    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  of Modified Example 2 is viewed in a plan view from the +Z direction. In the plan view of  FIG.  13   , the color filter  81  of the pixels MPx 1  to MPx 4  of Modified Example 2 is specifically illustrated. 
     According to the color change depending on the viewing angle in the X-axis direction, and in Modified Example 2, the relationship between the color of the one sub pixel Px and the color of the sub pixel located adjacent to the above-described one sub pixel in the X direction is uniquely determined in accordance with the color of the above-described one sub pixel. Specifically, the color filter  81  located adjacent to each of the sub pixels PxR of the pixels MPx 1  to MPx 4  in the +X direction is the color filter  81 G. Similarly, the color filter  81  located adjacent to each of the sub pixels PxG of the pixels MPx 1  to MPx 4  in the +X direction is the color filter  81 R. The color filter  81  located adjacent to each of the sub pixels PxB of the pixels MPx 1  to MPx 4  in the +X direction is the color filter  81 B. Accordingly, the color changes depending on the viewing angle in the +X direction are identical to each other. The features in the +X direction are identical in the −X direction. 
     According to the color change depending on the viewing angle in the Y-axis direction, in Modified Example 2, the relationship between the color of the one sub pixel Px and the color of the sub pixel located adjacent to the above-described one sub pixel in the X direction is uniquely determined in accordance with the color of the above-described one sub pixel. Specifically, the color filter  81  located adjacent to each of the sub pixels PxR of the pixels MPx 1  to MPx 4  in the +Y direction is the color filter  81 B. Similarly, the color filter  81  located adjacent to each of the sub pixels PxG of the pixels MPx 1  to MPx 4  in the +Y direction is the color filter  81 B. The color filter  81  located adjacent to each of the sub pixels PxB of the pixels MPx 1  to MPx 4  in the +Y direction is color filters  81 R or  81 G. Accordingly, the color changes depending on the viewing angle in the +Y direction are identical to each other. The features in the +Y direction are identical in the −Y direction. 
     According to the relationship between the color change depending on the viewing angle in the X-axis direction and the color change depending on the viewing angle in the Y-axis direction, the color filter  81  located adjacent to the sub pixel PxR is, in the X-axis direction, the color filter  81 G, while the color filter  81  located adjacent to the sub pixel PxR is, in the Y-axis direction, the color filter  81 B. As described above, in Modified Example 2, the color change depending on the viewing angle in the X-axis direction differs from the color change depending on the viewing angle in the Y-axis direction. 
       FIG.  14    is an example of a partial cross-sectional view of the display unit  12  in Modified Example 2 taken along line E 2 - e   2  in  FIG.  12    of the display  12  in Modified Example 2, and illustrates a cross-sectional surface of the light-emitting element  3 B 1 , a cross-sectional surface of the contact  7 B 1 , and a cross-sectional surface of the light-emitting element  3 G. In  FIG.  14   , there are portions that have been described with reference to  FIGS.  7  and  8   , and thus the descriptions are omitted. 
       FIG.  15    is an example of a partial cross-sectional view of the display unit  12  in Modified Example 2 taken along line E 3 - e   3  in  FIG.  12   , and illustrates a cross-sectional surface of the light-emitting element  3 R, a cross-sectional surface of the barrier metal-positive electrode contact  7   b R, the reflective layer-barrier metal contact  7   a R, and a cross-sectional surface of the light-emitting element  3 B 2 . In  FIG.  15   , the descriptions of the portions that have been described with reference to  FIGS.  7  and  8    are omitted. 
     The contact electrode  71  is layered on the reflective layer  52  and the protective layer  72 , and is formed along the gap  53 CT. As depicted in  FIG.  15   , the contact electrode  71  extends along the gap  53 CT, and thus the reflective layer-barrier metal contact  7   a R is formed. In addition, the pixel electrode  31  is layered on the contact electrode  71  and the second distance adjustment layer  58 , and is formed along the gap  58 CT. 
     As depicted in  FIG.  15   , the pixel electrode  31  extends along the gap  58 CT, and thus the barrier metal-positive electrode contact  7   b R is formed. 
       FIG.  16    is an example of a partial cross-sectional view taken along line E 4 - e   4  in  FIG.  12    of the display  12  in Modified Example 2, and illustrates the cross-sectional surface of the light-emitting element  3 G, a cross-sectional surface of the barrier metal-positive electrode contact  7   b G, a cross-sectional surface of the reflective layer-barrier metal contact  7   a G, and the cross-sectional surface of the light-emitting element  3 B 1 . In  FIG.  16   , the descriptions of the portions that have been described with reference to  FIGS.  7 ,  8 ,  14 , and  15    are omitted. 
     The contact electrode  71  is layered on the reflective layer  52  and the protective layer  72 , and is formed along the gap  53 CT. As depicted in  FIG.  16   , the contact electrode  71  extends along the gap  53 CT and thus the reflective layer-barrier metal contact  7   a G is formed. In addition, the pixel electrode  31  is layered on the contact electrode  71  and the second distance adjustment layer  58 , and is formed along a gap  58 CT. As depicted in  FIG.  16   , the pixel electrode  31  extends along the gap  58 CT and thus the barrier metal-positive electrode contact  7   b G is formed. Modified Example 3 
       FIG.  17    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  in Modified Example 3 is viewed in a plan view from the +Z direction. Note that the plan view of  FIG.  17    is illustrated excluding the color filter  81  to make the drawing more understandable.  FIG.  17    illustrates the sub pixel PxR, the sub pixel PxG, the sub pixel PxB 1 , and the sub pixel PxB 2  that form one pixel MPx 1 . Note that in Modified Example 3, in a plan view from the +Z direction, the structure included in the light-emitting region Ha is taken as the sub pixel Px. 
     The disposal relationship of each of the sub pixels Px in Modified Example 3 is identical to the disposal relationship of the above-described exemplary embodiments. In addition, each of the sub pixels Px in Modified Example 3 is formed in a rectangular shape, and the contact region Ca in Modified Example 3 is disposed inside the light-emitting region Ha in Modified Example 3. As described above, the contact region Ca is disposed inside the light-emitting region Ha and the contact region Ca is not arrayed outside the light-emitting region Ha, and thus the intervals between the light-emitting regions Ha do not vary due to the presence of the contact region Ca. Accordingly, the variation in color change depending on the viewing angle is suppressed. 
     According to the viewing angle in the X-axis direction in Modified Example 3, the distance between the light-emitting region HaB 1  and the light-emitting region HaG in the pixel MPx 1  is substantially equal to the distance between the light-emitting region HaG of the pixel MPx 1  and the light-emitting region HaB 1  of the pixel MPx located adjacent to the pixel MPx 1  in the +X direction. Accordingly, in Modified Example 3, as in the above-described exemplary embodiments, the variation in color change depending on the viewing angle caused by the variation in the distance between the light-emitting regions Ha, in the viewing angle in the X-axis direction, is suppressed. Similarly, the distance between the light-emitting region HaB 1  and the light-emitting region HaR of the pixel MPx 1  is substantially equal to the distance between the light-emitting region HaG of the pixel MPx 1  and the light-emitting region HaB 1  of the pixel MPx located adjacent to the pixel MPx 1  in the +Y direction. Accordingly, in Modified Example 3, as in the above-described exemplary embodiments, the variation in color change depending on the viewing angle caused by the variation in the distance between the light-emitting regions Ha, in the viewing angle in the Y-axis direction, is suppressed. 
     In addition, the disposal relationship of each of the sub pixels Px in Modified Example 3 is identical to the disposal relationship of the above exemplary embodiments. Accordingly, the variation in color change depending on the viewing angle in the X-axis direction caused by the color variation of the color filters  81  located adjacent to each other in the X-axis direction, and the variation in color change depending on the viewing angle in the Y-axis direction caused by the color change of adjacent color filters  81  in the Y-axis direction, are suppressed. 
     In addition, as depicted in  FIG.  17   , the contact regions Ca in Modified Example 3 are arrayed in the +Y direction. In other words, the direction in which the contact regions Ca are arrayed is inclined at 90 degrees with respect to the +X direction, and the direction in which the contact regions Ca are arrayed is inclined at 0 degrees with respect to the +Y direction. Furthermore, the two contacts  7  are disposed within one contact region Ca, and thus in a similar manner as in the above-described exemplary embodiments, the two contacts  7  are concentrated at one location, and the distance between the two contacts  7  is shortened and the wiring is able to be smoothly performed. 
     In Modified Example 3, as in the above-described exemplary embodiments, according to the viewing angle in the direction A, the distances between the light-emitting regions Ha of the sub pixels Px and the light-emitting regions Ha of the sub pixels Px located adjacent to the above-described sub pixels Px in the direction A, are constant values. Accordingly, the variation in color change related to the distance between the light-emitting regions Ha in the viewing angles in the directions A and C is suppressed. 
     In Modified Example 3, the angle 90 degrees is an example of the “first angle”, the angle 0 degrees is an example of the “second angle”, and the +Y direction is an example of the “third direction”. 
       FIG.  18    is an example of a partial cross-sectional view taken along line E 5 -E 6 -E 7  in  FIG.  17    of the display  12  in Modified Example 3, and illustrates the cross-sectional surface of the light-emitting element  3 B 2 , the cross-sectional surface of the light-emitting element  3 R, the cross-sectional surface of the reflective layer-barrier metal contact  7   a R, the cross-sectional surface of the barrier metal-positive electrode contact  7   b R and the cross-sectional surface of the light-emitting element  3 B 1 . As depicted in  FIG.  17   , the light-emitting region Ha is opened by the pixel separation layer  34  in the regions of the pixel electrode  31 . In  FIG.  18   , there are portions that have been described with reference to  FIGS.  7 ,  8 ,  14 , and  15   , and thus the descriptions are omitted. 
     Note that the disposal relationship of the color filter  81  in Modified Example 3 is identical to the disposal relationship of the color filter  81  in the above-described exemplary embodiments, and thus the illustrations are omitted. 
     Modified Example 4 
       FIG.  19    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  in Modified Example 4 is viewed in a plan view from the +Z direction. Note that the plan view of  FIG.  19    is illustrated excluding the color filter  81  to make the drawing more understandable.  FIG.  19    illustrates the sub pixel PxR, the sub pixel PxG, the sub pixel PxB 1 , and the sub pixel PxB 2  that form one pixel MPx 1 . Note that, in Modified Example 4, as in Modified Example 3, the structure included in the light-emitting region Ha in a plan view from the +Z direction is taken as the sub pixel Px. 
     The disposal relationship of each of the sub pixels Px in Modified Example 4 is identical to the disposal relationship of Modified Example 2. The sub pixel PxB 1  is connected to the sub pixel PxB 2  in the reflective layer  52  and the pixel electrode  31 . In addition, each of the sub pixels Px in Modified Example 4 is formed in a rectangular shape in the same manner as Modified Example 3. In a similar manner as in Modified Example 3, the contact region Ca in Modified Example 4 is disposed inside the light-emitting region Ha in Modified Example 4. 
     Note that the disposed location of the color filter  81  in Modified Example 4 is identical to the disposed location of the color filter  81  in Modified Example 2, and thus the illustrations are omitted. 
     Modified Example 5 
       FIG.  20    is a plan view illustrating an example of a schematic structure of the display  12  when a part of the display  12  in Modified Example 5 is viewed in a plan view from the +Z direction. 
     Note that, the plan view of  FIG.  20    is illustrated excluding the contact region Ca to make the drawing more understandable. 
     In one exemplary embodiment, the color filters  81  do not overlap with each other, while in Modified Example 5, a part of the color filter  81  overlaps with a part of another color filter  81 . In  FIG.  20   , features excluding the color filter  81  are identical to the features in the above-described exemplary embodiments. Even when a part of the color filter  81  overlaps with a part of another color filter  81 , in one of the X-axis direction and the Y-axis direction, the distances between the end portion of the color filter  81  and the light-emitting region Ha adjacent to the corresponding color filter  81  in one of the X-axis direction and the Y-axis direction, are equal to each other. The aspect in which a part of the color filter  81  overlaps with a part of another color filter  81  is not limited to the exemplary embodiment, and is able to be applied to any of Modified Example 1, Modified Example 2, Modified Example 3, and Modified Example 4. 
     Other Modified Examples 
     In the above-described exemplary embodiments, the +X direction as an example of the first direction is orthogonal to the +Y direction as an example of the second direction, and the first direction may be simply intersected by the second direction. For example, even when the array of the sub pixels Px is the so-called delta-array, the above is applicable. Further, in a plan view from the +Z direction, the light-emitting regions Ha in the exemplary embodiments, Modified Example 1, and Modified Example 2 are octagonal, and the shape is not limited to being octagonal and may be circular. Further, the width and the height of the light-emitting region Ha may be equal to each other or may be different from each other. Further, in the exemplary embodiments, Modified Example 1, and Modified Example 3 as described above, the sub pixels PxB are arrayed in the direction A, and the sub pixels PxB may be arrayed in the direction D. Furthermore, in Modified Example 2 and Modified Example 4, the sub pixels PxB are arrayed in the X-axis direction, and the sub pixels PxB may be arrayed in the Y-axis direction. 
     Application Examples 
     The electro-optical device  1  of the exemplary embodiments and the modified examples described above is able to be applied to various electronic devices. Hereafter, electronic devices according to the disclosure will be described. 
       FIG.  21    is a perspective view illustrating the external appearance of a head mounted display  300  as an electronic device that employs the electro-optical device  1  of the disclosure. As depicted in  FIG.  21   , the head mounted display  300  includes a temple  310 , a bridge  320 , a projection optical system  301 L, and a projection optical system  301 R. Furthermore, in  FIG.  21   , an electro-optical device  1  (not depicted) for the left eye is provided behind the projection optical system  301 L, and an electro-optical device  1  (not depicted) for the right eye is provided behind the projection optical system  301 R.  FIG.  22    is a perspective view of a portable personal computer  400  that employs the electro-optical device  1 . The personal computer  400  includes the electro-optical device  1  for displaying various images, and a main body portion  403  provided with a power switch  401  and a keyboard  402 . Note that the electronic devices to which the electro-optical device  1  according to the disclosure is applied, include, in addition to the devices exemplified in  FIGS.  21  and  22   , mobile phones, smartphones, personal digital assistants (PDAs), digital still cameras, televisions, video cameras, car navigation devices, in-vehicle display devices (instrument panels), electronic notebooks, electronic papers, electronic calculators, word processors, workstations, video phones, POS terminals, and the like. Furthermore, the electro-optical device  1  according to the disclosure is able to be applied as a display provided in an electronic device, such as a printer, a scanner, a copying machine, and a video player. 
     The entire disclosure of Japanese Patent Application No. 2017-147405, filed Jul. 31, 2017 is expressly incorporated by reference herein.