Patent Publication Number: US-11031441-B2

Title: Electro-optical device, manufacturing method of electro-optical device, and electronic apparatus

Description:
This is a continuation application of U.S. patent application Ser. No. 16/288,764 filed on Feb. 28, 2019, which claims priority to Japanese Patent Application No. 2018-036220 filed on Mar. 1, 2018. Entire contents of each of the identified applications are hereby incorporated by reference. 
    
    
     BACKGROUND 
     1. Technical Field 
     The present invention relates to an electro-optical device, a manufacturing method of an electro-optical device, and an electronic apparatus. 
     2. Related Art 
     Organic electro-luminescence (EL) devices that include organic EL elements in pixels are known as electro-optical devices. Because organic EL elements can be made smaller and thinner than light-emitting diodes (LEDs), the use of organic EL elements in microdisplays such as head-mounted displays (HMDs) and electronic viewfinders (EVFs) is garnering attention. 
     For example, JP-A-2014-89804 proposes an organic EL device combining organic EL elements that emit white light with a color filter as means for realizing a color display in such a microdisplay. In the organic EL device of JP-A-2014-89804, a sealing layer is formed covering a plurality of organic EL elements disposed on a substrate, and a color filter constituted by blue (B), green (G), and red (R) coloring layers is formed on the sealing layer. The coloring layers that constitute the color filter are partitioned by protrusions on the sealing layer which are lower in height than the coloring layers. Compared to a configuration lacking such protrusions, the organic EL device of JP-A-2014-89804 reduces the percentage of emitted light from the organic EL element that, at the boundaries between the coloring layers, passes through coloring layers of colors aside from the coloring layer through which that light is originally supposed to pass. This is said to be capable of realizing excellent symmetry with respect to the visual field angle characteristics. 
     In the organic EL device disclosed in JP-A-2014-89804, an opposing substrate is arranged opposite the element substrate on which the organic EL elements and color filter are formed, with a transparent resin layer interposed between the element substrate and the opposing substrate, to protect the color filter. In other words, the organic EL device is configured by affixing the element substrate and the opposing substrate to each other with interposing the transparent resin layer. 
     However, if, for example, the thicknesses of the coloring layers are then adjusted to vary on a color-by-color basis to achieve desired optical characteristics, level differences will arise between the coloring layers. In such a case, there is a risk, when affixing the element substrate and the opposing substrate to each other, that the resin material will be unevenly applied when forming the transparent resin layer that covers the color filter of the element substrate, that bubbles will form at the areas of level differences between the coloring layers, or the like. Bubbles in particular will affect the display, and there is thus a need for improvement. 
     SUMMARY 
     An electro-optical device according to an aspect of the invention includes, a first substrate including a plurality of light-emitting elements and a color filter provided corresponding to the plurality of light-emitting elements, and a second substrate being a light-transmissive substrate and disposed facing the first substrate with an adhesive provided between the first substrate and the second substrate, wherein an adhesive surface of the color filter of the first substrate is provided with protrusions and recesses in a stripe pattern. 
     Preferably, the above-described electro-optical device includes an overcoat layer provided on the color filter, the overcoat layer being a light-transmissive layer, and the protrusions and recesses in stripes are provided in the overcoat layer. 
     Preferably, in the above-described electro-optical device, the color filter includes coloring layers of at least three colors, and the overcoat layer covers a coloring layer arranged in a first direction among the coloring layers of at least three colors. 
     Additionally, in the above-described electro-optical device, the coloring layer arranged in the first direction may include coloring layers having different thicknesses. 
     Additionally, in the above-described electro-optical device, a coloring layer arranged in a second direction intersecting with the first direction may have a thickness different from that of the coloring layer arranged in the first direction. 
     Preferably, in the above-described electro-optical device, the overcoat layer includes a first overcoat layer covering the color filter, and a second overcoat layer extending in a first direction on the first overcoat layer, and the protrusions and recesses in a stripe pattern are formed by the first overcoat layer and the second overcoat layer. 
     Additionally, in the above-described electro-optical device, the color filter may include coloring layers of at least three colors, and the protrusions and recesses in a stripe pattern may be formed by making thicknesses of two coloring layers of different colors, among the coloring layers of at least three colors, different from each other. 
     Preferably, in the above-described electro-optical device, the color filter includes coloring layers of at least three colors, and a light-shielding portion formed by laminating the coloring layers of at least three colors is provided in a position surrounding a light-emitting region in which the plurality of light-emitting elements are disposed. 
     A method of manufacturing an electro-optical device according to an aspect of the invention is a method of manufacturing an electro-optical device including a plurality of light-emitting elements and a color filter, the method including, forming a sealing layer sealing the plurality of light-emitting elements across a light-emitting region of a first substrate, the light-emitting region being a region in which the plurality of light-emitting elements are disposed, forming a color filter by forming coloring layers of at least three colors on the sealing layer, the coloring layers corresponding to the plurality of light-emitting elements, forming an overcoat layer covering a coloring layer arranged in a first direction among the coloring layers of at least three colors, the overcoat layer being a light-transmissive layer, and affixing the first substrate provided with the first substrate to a second substrate using an adhesive, the second substrate being a light-transmissive substrate. 
     A method of manufacturing an electro-optical device according to another aspect of the invention is a method of manufacturing an electro-optical device including a plurality of light-emitting elements and a color filter, the method including, forming a sealing layer sealing the plurality of light-emitting elements across a light-emitting region of a first substrate, the light-emitting region being a region in which the plurality of light-emitting elements are disposed, forming a color filter by forming coloring layers of at least three colors on the sealing layer, the coloring layers corresponding to the plurality of light-emitting elements, forming a first overcoat layer covering the color filter, with the first overcoat layer being a light-transmissive layer, and forming a second overcoat layer extending in the first direction on the first overcoat layer, with the second overcoat layer being a light-transmissive layer, and affixing the first substrate provided with the first overcoat layer and the second overcoat layer, to a second substrate using an adhesive, the second substrate being a light-transmissive substrate. 
     A method of manufacturing an electro-optical device according to another aspect of the invention is a method of manufacturing an electro-optical device including a plurality of light-emitting elements and a color filter, the method including, forming a sealing layer sealing the plurality of light-emitting elements across a light-emitting region of a first substrate, the light-emitting region being a region in which the plurality of light-emitting elements are disposed, forming a color filter by forming coloring layers of at least three colors on the sealing layer, the coloring layers corresponding to the plurality of light-emitting elements, and affixing the first substrate provided with the color filter to a second substrate using an adhesive, the second substrate being a light-transmissive substrate, wherein in the forming of the color filter, a first coloring layer and a second coloring layer, among the coloring layers of at least three colors, are formed to be arranged in a first direction, and a third coloring layer having a different thickness from the first coloring layer and the second coloring layer is formed and arranged adjacent to the first coloring layer and the second coloring layer in a second direction intersecting with the first direction. 
     Preferably, in the above-described method of manufacturing an electro-optical device, in the forming of the color filter, a light-shielding portion is formed by laminating the coloring layers of at least three colors in a position surrounding the light-emitting region. 
     Preferably, in the above-described method of manufacturing an electro-optical device, in the forming of the color filter, a light-shielding portion is formed by laminating the coloring layers of at least three colors in a position surrounding the light-emitting region, and in the forming of the overcoat layer, the overcoat layer is formed on an inner side of the light-shielding portion. 
     An electronic apparatus according to an aspect of the invention includes the above-described electro-optical device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements. 
         FIG. 1  is a plan view schematically illustrating the configuration of an electro-optical device according to a first exemplary embodiment. 
         FIG. 2  is an equivalent circuit diagram illustrating the electrical configuration of the electro-optical device according to the first exemplary embodiment. 
         FIG. 3  is a plan view schematically illustrating the arrangement of sub pixels and a color filter in a pixel. 
         FIG. 4  is a schematic cross-sectional view illustrating the structure of a sub pixel, taken along line A-A□ from  FIG. 3 . 
         FIG. 5  is a plan view schematically illustrating the arrangement of a light-shielding portion in an element substrate. 
         FIG. 6  is a schematic cross-sectional view illustrating the structure of the electro-optical device, taken along line C-C□ from  FIG. 5 . 
         FIG. 7  is a flowchart illustrating a method of manufacturing the electro-optical device according to the first exemplary embodiment. 
         FIG. 8  is a schematic cross-sectional view illustrating the method of manufacturing the electro-optical device according to the first exemplary embodiment. 
         FIG. 9  is a schematic cross-sectional view illustrating the method of manufacturing the electro-optical device according to the first exemplary embodiment. 
         FIG. 10  is a schematic cross-sectional view illustrating the method of manufacturing the electro-optical device according to the first exemplary embodiment. 
         FIG. 11  is a schematic cross-sectional view illustrating the method of manufacturing the electro-optical device according to the first exemplary embodiment. 
         FIG. 12  is a schematic cross-sectional view illustrating the structure of an electro-optical device according to a second exemplary embodiment. 
         FIG. 13  is an enlarged cross-sectional view illustrating the structure of a color filter and an overcoat layer in the electro-optical device according to the second exemplary embodiment. 
         FIG. 14  is a schematic cross-sectional view illustrating the structure of an electro-optical device according to a third exemplary embodiment. 
         FIG. 15  is an enlarged cross-sectional view illustrating the structure of a color filter in the electro-optical device according to the third exemplary embodiment. 
         FIG. 16  is a schematic diagram illustrating the structure of a head-mounted display serving as an electronic apparatus according to a fourth exemplary embodiment. 
         FIG. 17  is a plan view schematically illustrating the arrangement of sub pixels and a color filter according to a first modified example. 
         FIG. 18  is a schematic cross-sectional view illustrating the structure of a color filter and an overcoat layer, taken along line D-D□ from  FIG. 17 . 
         FIG. 19  is a plan view schematically illustrating the arrangement of sub pixels and a color filter according to a second modified example. 
         FIG. 20  is a schematic cross-sectional view illustrating the structure of a color filter and an overcoat layer, taken along line F-F□ from  FIG. 19 . 
     
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     Exemplary embodiments of the invention will be described below with reference to the accompanying drawings. Note that in the drawings referred to below, the parts described are illustrated in an enlarged or reduced state as appropriate so that those parts can be easily recognized. 
     First Exemplary Embodiment 
     Electro-Optical Device 
     An electro-optical device according to this embodiment will be described with reference to  FIGS. 1 to 4 .  FIG. 1  is a plan view schematically illustrating the electro-optical device according to the first exemplary embodiment;  FIG. 2  is an equivalent circuit diagram illustrating the electrical configuration of the electro-optical device according to the first exemplary embodiment;  FIG. 3  is a plan view schematically illustrating the arrangement of sub pixels and a color filter in a pixel; and  FIG. 4  is a schematic cross-sectional view illustrating the structure of a sub pixel, taken along line A-A□ from  FIG. 3 . The electro-optical device according to this embodiment is a self-luminous microdisplay suitable for use as a display unit in a head-mounted display (HMD), which will be described later. 
     As illustrated in  FIG. 1 , an electro-optical device  100  according to this embodiment includes an element substrate  10  and an opposing substrate  40 . These substrates are disposed facing each other, and are fixed to each other, interposing an adhesive  41  (see  FIG. 4 ). 
     The element substrate  10  includes a display region E 1 , in which a plurality of pixels P are arranged in a matrix, and a non-display region E 2 , which is a peripheral region further on the outside than the display region E 1 . Each pixel P includes a sub pixel  18 B, which emits blue (B) light; a sub pixel  18 G, which emits green (G) light; and a sub pixel  18 R, which emits red (R) light. The electro-optical device  100  provides a full-color display, with each pixel P, including the three sub pixels  18 B,  18 G, and  18 R, serving as a unit of the display. 
     Note that the following descriptions may refer to the sub pixels  18 B,  18 G, and  18 R collectively as “sub pixels  18 ”. Each sub pixel  18  of this embodiment includes an organic EL element  30  serving as a light-emitting element (see  FIG. 2  or  FIG. 4 ). Accordingly, the display region E 1  is an example of a light-emitting region according to the invention. Note that the display region E 1  may include a region in which dummy pixels, which do not contribute to the display, are disposed, on the outside of the region in which the plurality of pixels P, which do contribute to the display, are disposed. 
     The element substrate  10  is an example of a first substrate according to the invention, is larger than the opposing substrate  40 , and has a plurality of external connection terminals  102  arranged along a first side of the element substrate  10  that protrudes further than the opposing substrate  40 . A data line driving circuit  15  is provided between the plurality of external connection terminals  102  and the display region E 1 . A scanning line driving circuit  16  is provided between a second side and the display region E 1 , and also between a third side and the display region E 1 , the second side and the third side oppose each other in a direction orthogonal to the first side. A flexible printed circuit (FPC)  103 , for connecting with an external driving circuit that supplies control signals pertaining to the display, power, and the like, is mounted to the external connection terminals  102 . 
     The opposing substrate  40  is an example of a second substrate according to the invention, is slightly smaller than the element substrate  10  serving as the first substrate, and is arranged so that the external connection terminals  102  are exposed. The opposing substrate  40  is a light-transmissive substrate, and a quartz substrate, a glass substrate, or the like can be used, for example. The opposing substrate  40  has a protective function for ensuring that the organic EL elements  30  (described later), which are disposed in the sub pixels  18 , are not damaged, and is arranged to oppose at least the display region E 1 . A top-emission system, in which light emitted from the sub pixels  18  exits from the opposing substrate  40  side, is employed for the electro-optical device  100  of this embodiment. 
     In the following descriptions, the direction following the first side along which the external connection terminals  102  are arranged is an X direction, and the direction following the other two sides orthogonal to the first side and opposing each other (the second side and the third side) is a Y direction. The direction oriented from the element substrate  10  toward the opposing substrate  40  is a Z direction. Additionally, a view taken along the Z direction from the opposing substrate  40  side will be called a “plan view”. 
     Electrical Configuration of Organic EL Device 
     As illustrated in  FIG. 2 , the electro-optical device  100  includes scanning lines  12  and data lines  13 , which intersect with each other, and power lines  14 . The scanning lines  12  are electrically connected to the scanning line driving circuit  16 , and the data lines  13  are electrically connected to the data line driving circuit  15 . The sub pixels  18  are provided in regions partitioned by the scanning lines  12  and the data lines  13 . 
     Each sub pixel  18  includes an organic EL element  30  and a pixel circuit  20  that controls the driving of that organic EL element  30 . 
     Each organic EL element  30  is constituted by a pixel electrode  31 , a light-emission functional layer  32 , and an opposing electrode  33 . The pixel electrode  31  functions as a positive electrode that injects holes into the light-emission functional layer  32 . The opposing electrode  33  functions as a negative electrode that injects electrons into the light-emission functional layer  32 . In the light-emission functional layer  32 , excitons (a state where a hole and an electron bind to each other under Coulomb force) are formed by the injected holes and electrons, and when the excitons decay (that is, when the holes and electrons recombine), some of the resulting energy is radiated as fluorescence or phosphorescence. In this embodiment, the light-emission functional layer  32  is configured so that white light is emitted from the light-emission functional layer  32 . 
     Each pixel circuit  20  includes a switching transistor  21 , a storage capacitor  22 , and a driving transistor  23 . The two transistors  21  and  23  can be configured using n channel or p channel-type transistors, for example. 
     The gate of the switching transistor  21  is electrically connected to the scanning line  12 . The source of the switching transistor  21  is electrically connected to the data line  13 . The drain of the switching transistor  21  is electrically connected to the gate of the driving transistor  23 . 
     The drain of the driving transistor  23  is electrically connected to the pixel electrode  31  of the organic EL element  30 . The source of the driving transistor  23  is electrically connected to the power line  14 . The storage capacitor  22  is electrically connected between the gate of the driving transistor  23  and the power line  14 . 
     When the switching transistor  21  is driven by the scanning line  12  under a control signal supplied from the scanning line driving circuit  16  and turns to ON state, a potential based on an image signal supplied from the data line  13  is stored in the storage capacitor  22  via the switching transistor  21 . The ON/OFF state of the driving transistor  23  is determined in accordance with the potential of the storage capacitor  22 , i.e., the gate potential of the driving transistor  23 . When the driving transistor  23  turns to ON state, an amount of current based on the gate potential flows to the organic EL element  30  from the power line  14  via the driving transistor  23 . The organic EL element  30  emits light at a luminance based on the amount of current flowing to the light-emission functional layer  32 . 
     Note that the configuration of the pixel circuit  20  is not limited to having the two transistors  21  and  23 , and for example, a transistor for controlling the current flowing to the organic EL element  30  may be further provided. 
     Arrangement of Sub Pixels and Color Filters 
     Next, the arrangement of the sub pixels  18 B,  18 G, and  18 R and a color filter  36  in the pixels P will be described with reference to  FIG. 3 . As described above, the organic EL element  30  and the pixel circuit  20  are provided in each sub pixel  18 , and thus in the following, an organic EL element  30  disposed in a sub pixel  18 B will be called an organic EL element  30 B; an organic EL element  30  disposed in a sub pixel  18 G, an organic EL element  30 G; and an organic EL element  30  disposed in a sub pixel  18 R, an organic EL element  30 R. The pixel electrode  31  in an organic EL element  30 B will be called a pixel electrode  31 B; the pixel electrode  31  in an organic EL element  30 G, a pixel electrode  31 G; and the pixel electrode  31  in an organic EL element  30 R, a pixel electrode  31 R. 
     As illustrated in  FIG. 3 , in this embodiment, the pixels P are arranged in a matrix along the X direction and the Y direction. The outer shape of each pixel P including the sub pixels  18 B,  18 G, and  18 R is substantially a square, and the pitch at which the pixels P are arranged in the X direction and the Y direction is 7.5 μm, for example. In each pixel P, the sub pixel  18 B and the sub pixel  18 R are arranged adjacent to each other with respect to the Y direction, and the sub pixel  18 G is arranged adjacent to the sub pixel  18 B and the sub pixel  18 R with respect to the X direction. The sub pixel  18 B and the sub pixel  18 R are disposed repeatedly along the Y direction in units of the pixels P. The sub pixel  18 G is also disposed repeatedly along the Y direction in units of the pixels P. The range over which emitted light can be obtained from each of the sub pixels  18 B,  18 G, and  18 R depends on openings provided in an insulating film  28  (see  FIG. 4 ), which defines a range over which the pixel electrodes  31  of the organic EL elements  30  make contact with the light-emission functional layer  32  in each of the sub pixels  18 B,  18 G, and  18 R. In  FIG. 3 , the openings are represented by solid lines, with an opening  28 KB provided for each sub pixel  18 B, an opening  28 KG provided for each sub pixel  18 G, and an opening  28 KR provided for each sub pixel  18 R. 
     Each of the openings  28 KB,  28 KG, and  28 KR are quadrangular in shape, and the area ratio of each openings  28 KB,  28 KG, and  28 KR is such that, for example, when the size of the opening  28 KR is “1”, the size of the opening  28 KB is “2” and the size of the opening  28 KG is “3”. However, the area ratio of the openings  28 KB,  28 KG, and  28 KR is not limited thereto. 
     The color filter  36  is disposed on the sub pixels  18 B,  18 G, and  18 R. The color filter  36  is constituted by blue (B) coloring layers  36 B, green (G) coloring layers  36 G, and red (R) coloring layers  36 R. Specifically, because the sub pixels  18 B and the sub pixels  18 R are arranged adjacent to each other in the Y direction, the coloring layers  36 B are disposed independently for each of the plurality of sub pixels  18 B, and likewise, the coloring layers  36 R are disposed independently for each of the plurality of sub pixels  18 R. The coloring layers  36 G are disposed for the sub pixels  18 G. Because the sub pixels  18 G are adjacent to each other in the Y direction, the coloring layers  36 G are disposed as stripes for corresponding pluralities of sub pixels  18 G arranged in the Y direction. 
     In other words, the coloring layers  36 B are disposed independently to overlap with the openings  28 KB. Likewise, the coloring layers  36 R are disposed independently to overlap with the openings  28 KR. The coloring layers  36 G are disposed as stripes extending in the Y direction to overlap with corresponding pluralities of the openings  28 KG arranged in the Y direction. 
     Although the arrangement of the coloring layers  36 B,  36 G, and  36 R in the element substrate  10  will be described in more detail later, in this embodiment, the coloring layers  36 B and the coloring layers  36 R are disposed to overlap at the boundaries between the sub pixels  18 B and the sub pixels  18 R adjacent to each other in the Y direction. The coloring layers  36 B and the coloring layers  36 G are disposed to overlap at the boundaries between the sub pixels  18 B and the sub pixels  18 G adjacent to each other in the X direction. Likewise, the coloring layers  36 R and the coloring layers  36 G are disposed to overlap at the boundaries between the sub pixels  18 R and the sub pixels  18 G adjacent to each other in the X direction. 
     In this embodiment, the Y direction in which the coloring layers  36 B and the coloring layers  36 R are adjacent is an example of a first direction according to the invention, and the X direction orthogonal to the Y direction is an example of a second direction intersecting with the first direction according to the invention. The coloring layer  36 B is an example of a first coloring layer according to the invention, the coloring layer  36 R is an example of a second coloring layer according to the invention, and the coloring layer  36 G is an example of a third coloring layer according to the invention. 
     The luminance (brightness) of the colors of light obtained from the sub pixels  18 B,  18 G, and  18 R depend on the sizes of the openings  28 KB,  28 KG, and  28 KR and the optical characteristics (transmittances) of the coloring layers  36 B,  36 G, and  36 R overlapping with the openings  28 KB,  28 KG, and  28 KR. 
     Structure of Sub Pixels 
     Next, the structure of the sub pixels  18  in the electro-optical device  100  will be described with reference to  FIG. 4 .  FIG. 4  illustrates a cross section taken along line A-A□ from  FIG. 3 , where line A-A□ is a line that crosses the sub pixels  18  in the Y direction, in order from the sub pixel  18 B, to the sub pixel  18 R, and to the sub pixel  18 G. 
     As illustrated in  FIG. 4 , the electro-optical device  100  includes the element substrate  10  and the opposing substrate  40 , which are disposed opposite each other interposing the adhesive  41 . The adhesive  41  serves to affix the element substrate  10  and the opposing substrate  40  to each other, and is constituted by epoxy resin or acrylic resin, which have light-transmissive properties, for example. A thermosetting resin, an ultraviolet light-curing resin, or a resin cured by both heat and ultraviolet light can be used as these resins. 
     The element substrate  10  includes a base material  11 , and a reflection layer  25 , a light-transmissive layer  26 , the organic EL elements  30 , a sealing layer  34 , and the color filter  36 , which are laminated in that order in the Z direction on the base material  11 . 
     The base material  11  is a semiconductor substrate such as silicon, for example. The scanning lines  12 , the data lines  13 , the power lines  14 , the data line driving circuit  15 , the scanning line driving circuit  16 , the pixel circuits  20  (the switching transistors  21 , the storage capacitors  22 , and the driving transistors  23 ), and the like of the above-described equivalent circuit are formed in the base material  11  using a known technique. These lines, circuit configurations, and the like are not illustrated in  FIG. 4 . 
     Note that the base material  11  is not limited to a semiconductor substrate such as silicon, and may instead be a substrate constituted by quartz, glass, or the like, for example. In other words, the transistors constituting the pixel circuits  20  may be MOS type transistors having an active layer in the semiconductor substrate, or may be thin-film transistors or field-effect transistors formed in a substrate constituted by quartz, glass, or the like. 
     The reflection layer  25  is disposed spanning the sub pixels  18 B,  18 R, and  18 G, and reflects light emitted from the organic EL elements  30 B,  30 R, and  30 G of the respective sub pixels  18 B,  18 R, and  18 G back toward the opposing substrate  40  side. A material that can realize a high reflectivity, such as aluminum, silver, or an alloy of such metals, is used as the material for forming the reflection layer  25 . 
     The light-transmissive layer  26  is provided on the reflection layer  25 . The light-transmissive layer  26  is constituted by a first insulating film  26   a , a second insulating film  26   b , and a third insulating film  26   c . The first insulating film  26   a  is disposed on the reflection layer  25 , spanning the sub pixels  18 B,  18 R, and  18 G. The second insulating film  26   b  is laminated on the first insulating film  26   a , and is disposed spanning the sub pixels  18 R and the sub pixels  18 G. The third insulating film  26   c  is laminated on the second insulating film  26   b , and is disposed on the sub pixels  18 R. The insulating films are constituted by silicon oxide, for example. 
     In other words, the light-transmissive layer  26  of the sub pixel  18 B is constituted by the first insulating film  26   a , the light-transmissive layer  26  of the sub pixel  18 G is constituted by the first insulating film  26   a  and the second insulating film  26   b , and the light-transmissive layer  26  of the sub pixel  18 R is constituted by the first insulating film  26   a , the second insulating film  26   b , and the third insulating film  26   c . As such, the thickness of the light-transmissive layer  26  increases in order from the sub pixel  18 B, to the sub pixel  18 G, and to the sub pixel  18 R. 
     The organic EL elements  30  are provided on the light-transmissive layer  26 . Each organic EL element  30  includes the pixel electrode  31 , the light-emission functional layer  32 , and the opposing electrode  33 , laminated in that order in the Z direction. The pixel electrodes  31  are constituted by a transparent conductive film such as indium tin oxide (ITO) film, and are formed having island shapes for each of the corresponding sub pixels  18 . 
     The insulating film  28  is disposed to cover edge portions of the pixel electrodes  31 B,  31 R, and  31 G. As described above, the opening  28 KB is formed in the insulating film  28  over the pixel electrode  31 B; the opening  28 KR, over the pixel electrode  31 R; and the opening  28 KG, over the pixel electrode  31 G. The insulating film  28  is constituted by silicon oxide, for example. 
     In the areas where the openings  28 KB,  28 KR, and  28 KG are provided, the pixel electrodes  31  ( 31 B,  31 R, and  31 G) contact the light-emission functional layer  32 , and the light-emission functional layer  32  emits light when holes are supplied from the pixel electrodes  31  to the light-emission functional layer  32  and electrons are supplied from the opposing electrode  33 . In other words, the regions where the openings  28 KB,  28 KR, and  28 KG are provided serve as regions in each of the sub pixels  18 B,  18 R, and  18 G where the light-emission functional layer  32  emits light. In the regions where the insulating film  28  is provided, the supply of holes from the pixel electrodes  31  to the light-emission functional layer  32  is suppressed, and thus light emission from the light-emission functional layer  32  is suppressed. 
     The light-emission functional layer  32  is disposed to span the sub pixels  18 B,  18 R, and  18 G and cover the entirety of the display region E 1  (see  FIG. 1 ). The light-emission functional layer  32  includes, for example, a hole injection layer, a hole transport layer, an organic light-emission layer, an electron transport layer, and the like, which are laminated in that order in the Z direction. The organic light-emission layer emits light in a wavelength range from blue to red. The organic light-emission layer may be constituted by a single layer, or may be constituted by a plurality of layers including a blue light-emitting layer, a green light-emitting layer, and a red light-emitting layer, for example, or including a blue light-emitting layer as well as a yellow light-emitting layer that can emit light including the wavelength ranges of red (R) and green (G). 
     The opposing electrode  33  is disposed to cover the light-emission functional layer  32 . The opposing electrode  33  is constituted by an alloy of magnesium and silver, for example, and the thickness of the opposing electrode  33  is controlled, so that the electrode is both light-transmissive and reflective. 
     The sealing layer  34  that covers the opposing electrode  33  is constituted by a first sealing layer  34   a , a flattening layer  34   b , and a second sealing layer  34   c , which are laminated in that order in the Z direction. The first sealing layer  34   a  and the second sealing layer  34   c  are inorganic sealing layers formed using an inorganic material. Silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, and the like, which are not easily permeated by moisture, oxygen, and the like, can be given as examples of the inorganic material. This sealing layer  34  is formed across at least the display region E 1  in which the light-emission functional layer  32  (the organic EL elements  30 ) is disposed. 
     Vacuum deposition, ion implanting, sputtering, CVD, and the like can be given as examples of the method of forming the first sealing layer  34   a  and the second sealing layer  34   c . From the standpoint of avoiding thermal damage to the organic EL elements  30 , it is desirable that vacuum deposition or ion implanting be used. The thicknesses of the first sealing layer  34   a  and the second sealing layer  34   c  are, for example, from approximately 50 nm to approximately 1000 nm, and preferably from approximately 200 nm to approximately 400 nm, to make it difficult for cracks and the like to be generated during deposition while also ensuring that the layers are light-transmissive. 
     The flattening layer  34   b  is a transmissive organic sealing layer, and can be formed using a resin material such as a heat- or ultraviolet light-curing epoxy resin, acrylic resin, urethane resin, silicone resin, or the like, for example. The flattening layer  34   b  is laminated upon the first sealing layer  34   a  covering a plurality of the organic EL elements  30 . 
     The flattening layer  34   b  covers defects (pinholes, cracks) arising when depositing the first sealing layer  34   a , foreign materials, or the like to form a substantially flat surface. Unevenness arises in the surface of the first sealing layer  34   a  due to the influence of the different thicknesses in the light-transmissive layer  26 , and it is thus preferable that the flattening layer  34   b  be formed at a thickness of from approximately 1 μm to approximately 5 μm, for example, to eliminate such unevenness. This makes it unlikely that the color filter  36  formed on the sealing layer  34  will be affected by such unevenness. From the standpoint of eliminating the unevenness caused by the light-transmissive layer  26 , it is preferable that the flattening layer  34   b  be constituted by an organic sealing layer that can be made thicker with ease; however, the flattening layer  34   b  may be formed using a coating type inorganic material (silicon oxide or the like) instead. 
     The color filter  36  is formed on the sealing layer  34 . The color filter  36  is constituted by the coloring layers  36 B,  36 G, and  36 R, which are formed through photolithography by using a photosensitive resin material containing blue (B), green (G), and red (R) color materials. The coloring layers  36 B are formed corresponding to the sub pixels  18 B; the coloring layers  36 R, to the sub pixels  18 R; and the coloring layers  36 G, to the sub pixels  18 G. 
     Adjacent coloring layers of different colors are formed to partially overlap with each other at the boundaries between sub pixels  18  on the sealing layer  34 . 
     The coloring layers  36 B,  36 R, and  36 G are formed by first applying photosensitive resin materials containing color materials of the respective colors through a method such as spin coating to form a photosensitive resin layer, and then exposing and developing the photosensitive resin layer using photolithography. In this embodiment, the coloring layers  36 G, the coloring layers  36 B, and the coloring layers  36 R are formed in that order. 
     Accordingly, the edges of the coloring layers  36 G in the X direction are covered by the edges of the coloring layers  36 B and the edges of the coloring layers  36 R, and the edges of the coloring layers  36 B in the Y direction are covered by the edges of the coloring layers  36 R. 
     An overcoat (OC) layer  50  is provided to overlap with the coloring layers  36 B and the coloring layers  36 R, which of the three colors of coloring layers  36 B,  36 G, and  36 R, are disposed adjacent to each other and repeating in the Y direction. While the OC layer  50  does cover parts corresponding to the boundaries between the coloring layers  36 R (the coloring layers  36 B) and the coloring layers  36 G, the OC layer  50  is not provided at parts aside from the boundaries of the coloring layers  36 G. Although the method of forming the OC layer  50  will be described in detail later, the OC layer  50  is formed by first applying a transmissive photosensitive resin material through a method such as spin coating to form a photosensitive resin layer, and then exposing and developing the photosensitive resin layer using photolithography. In other words, by forming the OC layer  50  to cover the coloring layers  36 B and the coloring layers  36 R, grooves  50   a  that follow the Y direction along which the coloring layers  36 G extend are formed on the surface of the color filter  36  that is affixed to the adhesive  41 . The grooves  50   a  are formed along the coloring layers  36 G corresponding to one color. The grooves  50   a  are an example of protrusions and recesses in a stripe pattern in an adhesive surface of the color filter, according to the invention. 
     Optical Resonance Structure 
     The electro-optical device  100  according to this embodiment is provided with an optical resonance structure between the reflection layer  25  and the opposing electrode  33 . In the electro-optical device  100 , light emitted by the light-emission functional layer  32  is repeatedly reflected between the reflection layer  25  and the opposing electrode  33 , the intensity of light of a specific wavelength (a resonant wavelength) corresponding to the optical distance between the reflection layer  25  and the opposing electrode  33  is amplified, and the light passing through the color filter  36  is emitted from the opposing substrate  40  in the Z direction as display light. 
     In this embodiment, the light-transmissive layer  26  has a function of adjusting the optical distance between the reflection layer  25  and the opposing electrode  33 . As described above, the thickness of the light-transmissive layer  26  increases in order from the sub pixel  18 B, to the sub pixel  18 G, and to the sub pixel  18 R. As a result, the optical distance between the reflection layer  25  and the opposing electrode  33  increases in order from the sub pixel  18 B, to the sub pixel  18 G, and to the sub pixel  18 R. Note that the optical distance can be expressed as the total of the products of the refractive indices and thicknesses of each layer between the reflection layer  25  and the opposing electrode  33 . 
     For example, in the sub pixels  18 B, the thickness of the light-transmissive layer  26  is set so that the resonant wavelength (a peak wavelength of maximum luminance) is 470 nm. In the sub pixels  18 G, the thickness of the light-transmissive layer  26  is set so that the resonant wavelength is 540 nm. In the sub pixels  18 R, the thickness of the light-transmissive layer  26  is set so that the resonant wavelength is 610 nm. 
     As a result, blue light (B) having a peak wavelength of 470 nm is emitted from the sub pixels  18 B, green light (G) having a peak wavelength of 540 nm is emitted from the sub pixels  18 G, and red light (R) having a peak wavelength of 610 nm is emitted from the sub pixels  18 R. In other words, the electro-optical device  100  has an optical resonance structure that amplifies the intensity of light at a specific wavelength, where a blue light component is obtained from the white light emitted from the light-emission functional layer  32  in the sub pixels  18 B, a green light component is obtained from the white light emitted from the light-emission functional layer  32  in the sub pixels  18 G, and a red light component is obtained from the white light emitted from the light-emission functional layer  32  in the sub pixels  18 R. 
     Note that rather than using the light-transmissive layer  26 , the configuration for adjusting the optical distance between the reflection layer  25  and the opposing electrode  33  may be realized by varying the thicknesses of the pixel electrodes  31  ( 31 B,  31 G, and  31 R). 
     The color filter  36  is disposed on the sealing layer  34  in the sub pixels  18 B,  18 G, and  18 R. The coloring layers  36 B are disposed on the organic EL elements  30 B of the sub pixels  18 B, with the sealing layer  34  interposed between the organic EL elements  30 B and the coloring layers  36 B. Accordingly, the color purity can be increased by the blue light (B), which has a peak wavelength of 470 nm, passing through the coloring layers  36 B. Likewise, the coloring layers  36 G are disposed on the organic EL elements  30 G of the sub pixels  18 G, with the sealing layer  34  interposed between the organic EL elements  30 G and the coloring layers  36 G, and the coloring layers  36 R are disposed on the organic EL elements  30 R of the sub pixels  18 R, with the sealing layer  34  interposed between the organic EL elements  30 R and the coloring layers  36 R. Accordingly, the color purity can be increased by the green light (G), which has a peak wavelength of 540 nm, passing through the coloring layers  36 G, and the color purity can be increased by the red light (R), which has a peak wavelength of 610 nm, passing through the coloring layers  36 R. 
     The optical characteristics, such as the color purity of the respective colors of light, depend on the thicknesses of the coloring layers  36 B,  36 G, and  36 R. In this embodiment, the blue coloring layers  36 B and the red coloring layers  36 R are formed to have an average thickness on the sealing layer  34  of 2 μm, and similarly, the green coloring layers  36 G are formed to have an average thickness of approximately 1 μm. Note that the settings for the thicknesses of the coloring layers  36 B,  36 G, and  36 R are not limited thereto. 
     As described above, the light emitted from the sub pixels  18  is light emitted from the opposing electrode  33  toward the sealing layer  34  and passing through the coloring layers  36 B,  36 G, and  36 R and is light having different spectra than the spectrum of the light emitted within the light-emission functional layer  32  of the organic EL elements  30 . 
     Structure for Affixing Element Substrate and Opposing Substrate 
     Next, a structure for affixing the element substrate  10  and the opposing substrate  40  will be described with reference to  FIGS. 5 and 6 .  FIG. 5  is a plan view schematically illustrating the arrangement of a light-shielding portion in the element substrate, and  FIG. 6  is a schematic cross-sectional view illustrating the structure of the electro-optical device, taken along line C-C□ from  FIG. 5 . Line C-C□ in  FIG. 5  is a line that crosses the light-shielding portion and the display region E 1  in the X direction. Note that in  FIG. 6 , the pixel circuits  20  in the element substrate  10 , as well as the scanning lines  12 , the data lines  13 , the power lines  14 , the data line driving circuit  15 , and the scanning line driving circuit  16  connected to the pixel circuits  20 , are not illustrated. 
     As illustrated in  FIG. 5 , the element substrate  10  of the electro-optical device  100  is provided with a frame-shaped light-shielding portion  36 S surrounding the display region E 1 . The light-portion  36 S is provided to overlap with the scanning line driving circuit  16  (see  FIG. 1 ), which is provided in the non-display region E 2  located on the outside of the display region E 1 , when viewed in plan view. A dummy color filter region E 4  (called a “dummy CF region E 4 ” hereinafter) is provided between the inner edges of the frame-shaped light-shielding portion  36 S and the display region E 1 . Providing the frame-shaped light-shielding portion  36 S surrounding the display region E 1  in this manner results in a configuration making it possible to prevent the light emitted from the display region E 1  from being reflected by other parts and affecting the display light, or entering the peripheral circuits such as the scanning line driving circuit  16  and destabilizing the operations of the transistors and the like included in the peripheral circuits. The region in which the light-shielding portion  36 S is provided in a frame shape will be called a “light-shielding region E 3 ” hereinafter. 
     As illustrated in  FIG. 6 , the element substrate  10  and the opposing substrate  40  are disposed opposing each other, and are affixed to each other, interposing the adhesive  41 . The light-emission functional layer  32  and the opposing electrode  33 , which partially constitute the organic EL element  30 , are provided on the base material  11  of the element substrate  10  across the display region E 1 . The sealing layer  34  is provided covering the light-emission functional layer  32  and the opposing electrode  33 . Outer edge  34   e  of the sealing layer  34  is located slightly further to the outside than the light-shielding region E 3  (see  FIG. 5 ). 
     The coloring layers  36 B,  36 G, and  36 R are provided on the sealing layer  34 , in the display region E 1 , to correspond to the sub pixels  18 B,  18 G, and  18 R of the pixels P. The above-described light-shielding portion  36 S is provided in a position surrounding the display region E 1 . The light-shielding portion  36 S is configured to shield entering light as a result of laminating the coloring layers  36 G, the coloring layers  36 B, and the coloring layers  36 R in that order. The width of the frame-shaped light-shielding portion  36 S (the light-shielding region E 3 ) on the sealing layer  34  is, for example, from approximately 0.5 mm to approximately 1.0 mm. 
     The coloring layer  36 R is provided as a dummy CF on the sealing layer  34 , in the dummy CF region E 4  between the light-shielding portion  36 S and the color filter  36  corresponding to the pixels P in the display region E 1 . The dummy CF is not limited to the red (R) coloring layer  36 R, and another color of coloring layer may be used; however, it is preferable that the coloring layer  36 R, which is thicker than the coloring layer  36 G, be used in consideration of light leakage. The width of the dummy CF region E 4  between the display region E 1  and the light-shielding region E 3  is, for example, from 50 μm to 300 μm. 
     As described above, in the display region E 1 , the stripe-shaped OC layer  50  is provided to overlap with the coloring layers  36 B and the coloring layers  36 R which, of the color filter  36 , are arranged in the Y direction. The pixels P thus include the parts where the OC layer  50  is provided, and the parts where the OC layer  50  is not provided and the grooves  50   a  are formed between the adjacent pixels P. In other words, the grooves  50   a , serving as protrusions and recesses in a stripe pattern extending in the Y direction for each pixel P arranged in the X direction, are provided in the adhesive surface of the color filter  36  that makes contact with the adhesive  41 . Note that the number of stripes in the OC layer  50  and grooves  50   a  in the display region E 1 , illustrated in  FIG. 5 , is determined by the number of pixels P arranged in the X direction.  FIGS. 5 and 6  illustrate the stripe-shaped OC layer  50  and grooves  50   a  at a number that is visually recognizable. 
     Method of Manufacturing Electro-Optical Device 
     Next, a method of manufacturing the electro-optical device  100  will be described with reference to  FIGS. 7 to 11 .  FIG. 7  is a flowchart illustrating the method of manufacturing the electro-optical device according to the first exemplary embodiment, and  FIGS. 8 to 11  are schematic cross-sectional views illustrating the method of manufacturing the electro-optical device according to the first exemplary embodiment. 
     As illustrated in  FIG. 7 , the method of manufacturing the electro-optical device  100  includes a process of forming the plurality of organic EL elements  30  on the base material  11  (step S 1 ), a sealing layer formation process of forming the sealing layer  34  for sealing the plurality of organic EL elements  30  (step S 2 ), a color filter formation process of forming the color filter  36  on the sealing layer  34  (step S 3 ), an overcoat (OC) formation process of forming the overcoat (OC) layer  50  (step S 4 ), and a process of affixing the opposing substrate  40  to the element substrate  10  (step S 5 ). Note that as described above, a known method can be used for the processes for forming the peripheral circuits such as the data line driving circuit  15  and the scanning line driving circuit  16 , the pixel circuits  20 , the lines connecting those circuits, the external connection terminals  102 , and the like in the base material  11 . The same applies to the reflection layer  25  and the light-transmissive layer  26 . Therefore, the process will be described from step S 1 . 
     Step S 1  is a process of forming the organic EL elements  30 , in which the pixel electrodes  31  are formed in the display region E 1  for each of the sub pixels  18 , the light-emission functional layer  32  and the opposing electrode  33  are formed spanning a plurality of the sub pixels  18 , and the organic EL elements  30  are formed for each of the sub pixels  18 . Then, the process proceeds to step S 2 . 
     Step S 2  is a process of forming the sealing layer  34 , in which the sealing layer  34 , which seals the plurality of organic EL elements  30  formed in the display region E 1 , is formed. To be more specific, the first sealing layer  34   a  is formed, using an inorganic material, to cover the opposing electrode  33 . The flattening layer  34   b  is then formed by forming the organic sealing layer using a resin material and then patterning the organic sealing layer. The second sealing layer  34   c  is then formed using an inorganic material to cover the flattening layer  34   b  as well as the first sealing layer  34   a  protruding from the flattening layer  34   b . The sealing layer  34  is formed as a result. Note that from the standpoint of improving the sealing characteristics, it is preferable that the first sealing layer  34   a  and the second sealing layer  34   c , which are constituted by an inorganic material, are formed to sandwich the flattening layer  34   b , which is constituted by an organic material, and to extend to the outer peripheral ends of the base material  11 . Then, the process proceeds to step S 3 . 
     Step S 3  is a process of forming the color filter  36 , in which the coloring layers  36 B,  36 G, and  36 R are formed on the sealing layer  34  in the display region E 1 , corresponding to the three sub pixels  18 B,  18 G, and  18 R. As described above, in the method of forming the coloring layers  36 B,  36 G, and  36 R, photosensitive resin materials containing the color materials are first applied through spin coating to form a photosensitive resin layer, and the photosensitive resin layer is then exposed and developed using photolithography. In this embodiment, the coloring layers  36 G, the coloring layers  36 B, and the coloring layers  36 R are formed in that order. Additionally, in the process of forming the color filter  36 , the light-shielding portion  36 S is formed in the light-shielding region E 3  surrounding the display region E 1  by laminating the three coloring layers  36 G,  36 B, and  36 R in that order, at the same time as when the coloring layers  36 G,  36 B, and  36 R are formed in the display region E 1 . Furthermore, in this embodiment, the coloring layer  36 R, which, of the three coloring layers  36 B,  36 G, and  36 R, is the thickest and thus contributes the most to the light-shielding properties, is formed in the dummy CF region E 4  between the display region E 1  and the light-shielding region E 3 . Note that the order in which the three color of the coloring layers  36 B,  36 G, and  36 R are formed is not limited to green (G), blue (B), and red (R). Because coloring layers having different colors overlap at the boundaries between sub pixels  18 , it is preferable that the thinnest layer be formed first. Then, the process proceeds to step S 4 . 
     Step S 4  is a process of forming the overcoat (OC) layer  50 , in which the OC layer  50  is first formed covering the color filter  36  formed in the display region E 1 , the light-shielding portion  36 S, and the coloring layer  36 R serving as the dummy CF, through spin coating or the like using a photosensitive resin material that does not contain a color material, for example, as illustrated in  FIG. 8 . At this time, the thickness of the OC layer  50  is approximately 1 μm, for example. 
     Next, as illustrated in  FIG. 9 , the OC layer  50  is irradiated with ultraviolet (UV) light, for example, over an exposure mask  60 . A light-shielding pattern  61  is provided in the mask  60 . The light-shielding pattern  61  includes a plurality of stripe-shaped light-shielding layers extending in the Y direction in positions overlapping with the coloring layers  36 B and the coloring layers  36 R formed in the display region E 1 . The light-shielding pattern  61  also includes a light-shielding layer formed in a frame shape, in positions overlapping the coloring layer  36 R formed in the dummy CF region E 4 . 
     Once the OC layer  50  irradiated with ultraviolet (UV) light is developed, the OC layer  50  is formed having been patterned to overlap with the coloring layers  36 B and the coloring layers  36 R in the display region E 1  and to overlap with the coloring layer  36 R serving as the dummy CF in the dummy CF region E 4 , as illustrated in  FIG. 10 . As a result, the grooves  50   a  are formed in the patterned OC layer  50  to extend in the Y direction, in positions overlapping the coloring layers  36 G in the display region E 1 . The OC layer  50  is formed on the inner side of the light-shielding portion  36 S. Because the OC layer  50  is formed to cover the coloring layers  36 B and the coloring layers  36 R arranged in the Y direction, the thicknesses of the coloring layers  36 B and the coloring layers  36 R may differ. Then, the process proceeds to step S 5 . 
     Step S 5  is a process of affixing the element substrate  10 , on which the OC layer  50  is formed, to the opposing substrate  40 , using the adhesive  41 . Specifically, as illustrated in  FIG. 11 , a prescribed amount of the adhesive  41  is applied on the color filter  36  of the element substrate  10 , after which the opposing substrate  40  is pressed toward the element substrate  10  from above so that the applied adhesive  41  spreads out. Because the plurality of grooves  50   a , which follow the Y direction, are formed in the adhesive surface of the color filter  36 , the adhesive  41  spreads out along the plurality of grooves  50   a.    
     Because the light-shielding portion  36 S surrounding the display region E 1  is formed from the three coloring layers  36 G,  36 B, and  36 R laminated in that order, the height of the light-shielding portion  36 S on the sealing layer  34  is approximately 5 μm. However, the height of the color filter  36  on the sealing layer  34  is a maximum of approximately 2 μm. The OC layer  50 , which is approximately 1 μm thick, is formed on the coloring layer  36 R serving as the dummy CF provided between the light-shielding region E 3  and the display region E 1 . Therefore, as the substantial height of the dummy CF on the sealing layer  34  is approximately 3 μm, a level difference between the light-shielding portion  36 S and the color filter  36  can be reduced as compared to a case where the dummy CF is not provided. The adhesive  41  that has spread out on the color filter  36  fills the level difference between the light-shielding portion  36 S and the color filter  36 , and passes over the light-shielding portion  36 S, more easily than in the past. The adhesive  41  is cured in a state where the adhesive  41  has spread to a predetermined application range on the base material  11 , and the element substrate  10  is affixed to the opposing substrate  40  as a result. 
     The electro-optical device  100  illustrated in  FIG. 1  is completed by then mounting the FPC  103  to the terminal parts of the element substrate  10 . 
     According to the electro-optical device  100  and the method of manufacturing the electro-optical device  100  of the first exemplary embodiment, the following effects can be achieved. 
     (1) In the color filter  36 , the coloring layers  36 B and the coloring layers  36 R are formed so that the end parts of those layers overlap each other at the boundaries in the Y direction. Additionally, the coloring layers  36 G are formed so that the end parts of the coloring layers  36 G overlap with the coloring layers  36 B and the coloring layers  36 R at the boundaries in the X direction. The OC layer  50  is then formed on the color filter  36  of this element substrate  10  through patterning, in positions overlapping with the coloring layers  36 B and the coloring layers  36 R arranged in the Y direction. As a result, the plurality of grooves  50   a , serving as protrusions and recesses in a stripe pattern extending in the Y direction, are formed in the surface of the color filter  36  affixed to the adhesive  41 . The grooves  50   a  are formed in positions overlapping with the coloring layers  36 G, which similarly extend in the Y direction, in the sub pixels  18 G. In other words, there is no level difference in the base part of the grooves  50   a . In the affixing process, where the element substrate  10  and the opposing substrate  40  are affixed to each other, the adhesive  41  spreads out along the plurality of grooves  50   a  when the opposing substrate  40  is pressed so that the adhesive  41  applied to the element substrate  10  spreads out. Accordingly, it is more difficult for unevenness to arise in the adhesive  41  than when complex level differences are present in the color filter  36  due to the three coloring layers  36 B,  36 G, and  36 R having different thicknesses and the OC layer  50  not being present, for example. Additionally, the adhesive  41  spreads out along the plurality of grooves  50   a , which extend in the Y direction serving as the first direction and which have no level differences in their base parts, and it is therefore difficult for bubbles to form in the grooves  50   a . In other words, an electro-optical device  100  in which bubbles that affect the display do not easily form, and a method of manufacturing the electro-optical device  100 , can be provided. 
     (2) The light-shielding portion  36 S formed in a position surrounding the display region E 1  is formed by laminating the three coloring layers  36 G,  36 B, and  36 R, which have different colors, in that order, and the height of the light-shielding portion  36 S on the sealing layer  34  is approximately 5 μm. The dummy CF region E 4  is provided, in a frame shape, between the light-shielding region E 3  where the light-shielding portion  36 S is provided and the display region E 1  where the color filter  36  is provided. The red coloring layer  36 R, serving as the dummy CF, and the OC layer  50 , formed through patterning, are provided in the dummy CF region E 4 . The combined height of the coloring layer  36 R and the OC layer  50  on the sealing layer  34  is 3 μm. In other words, forming the dummy CF region E 4  between the light-shielding region E 3  and the display region E 1  in this manner makes it possible to reduce the level difference between the light-shielding portion  36 S and the color filter  36  while maintaining light-shielding properties. Accordingly, when affixing the element substrate  10  and the opposing substrate  40  using the adhesive  41 , a situation in which the substrates are affixed with bubbles present between the light-shielding portion  36 S, which is the highest part on the sealing layer  34 , and the color filter  36 , can be suppressed. 
     (3) The plurality of grooves  50   a  obtained by patterning the OC layer  50  are formed to overlap with the coloring layers  36 G, which are the thinnest of the three coloring layers  36 B,  36 G, and  36 R. Accordingly, the grooves  50   a  are deeper, and it is thus easier to restrict the direction in which the adhesive  41  spreads out when affixing the element substrate  10  and the opposing substrate  40 , than when the thickness of the coloring layers  36 G is the same as the other coloring layers  36 B and  36 R. This makes it possible to suppress unevenness in the application of the adhesive  41  and achieve a uniform application state. In other words, the coloring layers  36 G arranged in the X direction, serving as the second direction intersecting with the Y direction, have a different thickness from, and are preferably thinner than, the coloring layers  36 B and  36 R arranged in the Y direction, serving as the first direction in which the OC layer  50  is formed. 
     The pixels P of the electro-optical device  100  according to the first exemplary embodiment described above are configured so that the sub pixels  18 B (the coloring layers  36 B) and the sub pixels  18 R (the coloring layers  36 R) are arranged in the Y direction serving as the first direction, and the sub pixels  18 G (the coloring layers  36 G) are arranged in the X direction, serving as the second direction, with respect to the sub pixels  18 B (the coloring layers  36 B) and the sub pixels  18 R (the coloring layers  36 R). However, the configuration is not limited thereto. For example, the configuration may be such that the sub pixels  18 B (the coloring layers  36 B) and the sub pixels  18 R (the coloring layers  36 R) are arranged in the X direction serving as the first direction, and the sub pixels  18 G (the coloring layers  36 G) are arranged in the Y direction, serving as the second direction, with respect to the sub pixels  18 B (the coloring layers  36 B) and the sub pixels  18 R (the coloring layers  36 R). In this case, the configuration is such that the plurality of grooves  50   a , extending in the X direction and serving as protrusions and recesses in a stripe pattern, are provided in the adhesive surface of the color filter  36 . In other words, the direction in which the plurality of grooves  50   a , serving as the protrusions and recesses in a stripe pattern extend, is not limited to the Y direction, and may be the X direction instead. 
     Second Exemplary Embodiment 
     Next, an electro-optical device, and a method of manufacturing the electro-optical device, according to a second exemplary embodiment will be described with reference to  FIGS. 12 and 13 .  FIG. 12  is a schematic cross-sectional view illustrating the structure of the electro-optical device according to the second exemplary embodiment, and  FIG. 13  is an enlarged cross-sectional view illustrating the structure of a color filter and an overcoat layer in the electro-optical device according to the second exemplary embodiment. Note that  FIG. 12  is a schematic cross-sectional view corresponding to  FIG. 6 , described in the foregoing first exemplary embodiment. 
     An electro-optical device  200  of the second exemplary embodiment differs from the electro-optical device  100  of the foregoing first exemplary embodiment in terms of the configuration of the overcoat layer  50 . The rest of the configuration is the same, and thus elements that are the same as those in the electro-optical device  100  of the foregoing first exemplary embodiment will be given the same reference signs, and will not be given detailed descriptions. 
     As illustrated in  FIG. 12 , the electro-optical device  200  of this embodiment is a self-luminous display device in which an element substrate  210 , which includes a plurality of organic EL elements  30  and the color filter  36 , and a transmissive opposing substrate  40 , are disposed opposing each other, and are affixed to each other, interposing the adhesive  41 . 
     In the element substrate  210 , each of the plurality of pixels P arranged in the display region E 1  includes the three sub pixels  18 B,  18 G, and  18 R. Each of the sub pixels  18 B,  18 G, and  18 R has an organic EL element  30 , which includes the light-emission functional layer  32  formed between the pixel electrode  31  and the opposing electrode  33 . The light-emission functional layer  32  and the opposing electrode  33  are formed across the display region E 1 , and are sealed by the sealing layer  34 . 
     The color filter  36  is formed on the sealing layer  34 , in the display region E 1 . The color filter  36  is configured including the blue coloring layers  36 B, the green coloring layers  36 G, and the red coloring layers  36 R, which are formed corresponding to the sub pixels  18 B,  18 G, and  18 R. 
     The frame-shaped dummy CF region E 4  is provided on the sealing layer  34 , in a position surrounding the display region E 1 , and the red coloring layer  36 R is formed as the dummy CF in the dummy CF region E 4 . Furthermore, the similarly frame-shaped light-shielding portion  36 S (light-shielding region E 3 ) is provided surrounding the dummy CF region E 4 . The light-shielding portion  36 S is formed by laminating the coloring layers  36 G,  36 B, and  36 R, which have different colors, in that order. The average thickness of the coloring layers  36 G is approximately 1 μm, and the average thickness of the coloring layers  36 B and the coloring layers  36 R is approximately 2 μm. 
     A first overcoat (OC) layer  51  is formed to cover the coloring layers  36 B,  36 G, and  36 R in the display region E 1  and the coloring layer  36 R in the dummy CF region E 4 . Furthermore, a second overcoat (OC) layer  52  is formed through patterning, on the first overcoat (OC) layer  51 , in positions overlapping, when viewed in plan view, with the coloring layers  36 B and the coloring layers  36 R arranged in the Y direction. In other words, the overcoat (OC) layer  50  according to this embodiment includes the first OC layer  51 , formed across the display region E 1  and the dummy CF region E 4 , and the second OC layer  52 , which is formed having stripe shapes extending in the Y direction for each pixel P. 
     In other words, a plurality of grooves  52   a , serving as protrusions and recesses in a stripe pattern extending in the Y direction, are formed in the surface of the color filter  36 , in the element substrate  210 , that is affixed to the adhesive  41 , the grooves  52   a  being formed by the first OC layer  51  and the second OC layer  52  formed through patterning. As illustrated in  FIG. 13 , the grooves  52   a  are formed in positions overlapping with the coloring layers  36 G in the color filter  36 . The thickness of the first OC layer  51  on the color filter  36  is, for example, 1.5 μm, from the standpoint of covering the color filter  36  across the display region E 1  and ensuring flatness. The thickness of the second OC layer  52  on the first OC layer  51  is thinner than the thickness of the first OC layer  51  at, for example, 1 μm, to regulate the depth of the grooves  52   a.    
     The method of manufacturing the electro-optical device  200  is basically configured same as the method of manufacturing the electro-optical device  100  of the foregoing first exemplary embodiment, with the overcoat layer formation process (step S 4 ) according to this embodiment including a process of forming the transmissive first OC layer  51  covering the color filter  36 , and a process of forming the second OC layer  52  on the first OC layer  51 , extending in the Y direction serving as the first direction. The first OC layer  51  and the second OC layer  52  are both formed through photolithography, using a transmissive photosensitive resin material. 
     According to the electro-optical device  200  and the method of manufacturing the electro-optical device  200  of the second exemplary embodiment, the following effects can be achieved. 
     (1) Regardless of how the thicknesses of the three coloring layers  36 B,  36 G, and  36 R constituting the color filter  36  are set, the plurality of grooves  52   a , serving as protrusions and recesses in a stripe pattern extending in the Y direction, are formed by the first OC layer  51  and the second OC layer  52  formed through patterning, on the surface of the color filter  36  that is affixed to the adhesive  41 . In other words, even if the thicknesses of the three coloring layers  36 B,  36 G, and  36 R are different and complex level differences are produced on the color filter  36 , the color filter  36  is covered by the first OC layer  51 , and it is thus difficult for unevenness in the application of the adhesive  41  to arise in the process of affixing the element substrate  210  and the opposing substrate  40 . Additionally, the adhesive  41  spreads out along the plurality of grooves  52   a , which extend in the Y direction serving as the first direction and which have no level differences in their base parts, and it is therefore difficult for bubbles to form in the grooves  52   a . In other words, an electro-optical device  200  in which bubbles that affect the display do not easily form, and a method of manufacturing the electro-optical device  200 , can be provided. 
     (2) The first OC layer  51  and the second OC layer  52  are laminated, in addition to the coloring layer  36 R serving as the dummy CF, in the dummy CF region E 4  between the light-shielding region E 3  and the display region E 1 , and the height of those layers on the sealing layer  34  is approximately 4.5 μm. Accordingly, level differences between the light-shielding portion  36 S and the color filter  36  can be reduced even more than in the configuration of the foregoing first exemplary embodiment. Additionally, in the process of affixing the element substrate  210  and the opposing substrate  40  using the adhesive  41 , the adhesive  41  easily passes over the light-shielding portion  36 S, and a situation in which the substrates are affixed with bubbles present between the light-shielding portion  36 S, which is the highest part on the sealing layer  34 , and the color filter  36 , can be suppressed. 
     Because the color filter  36  is covered by the first OC layer  51 , level differences pertaining to the setting of the thicknesses of the coloring layers  36 B,  36 G, and  36 R do not affect the affixing process, and thus the direction in which the second OC layer  52  formed on the first OC layer  51  extends is not limited to the Y direction, and may be the X direction instead. 
     Third Exemplary Embodiment 
     Next, an electro-optical device, and a method of manufacturing the electro-optical device, according to a third exemplary embodiment will be described with reference to  FIGS. 14 and 15 .  FIG. 14  is a schematic cross-sectional view illustrating the structure of the electro-optical device according to the third exemplary embodiment, and  FIG. 15  is an enlarged cross-sectional view illustrating the structure of a color filter in the electro-optical device according to the third exemplary embodiment. Note that  FIG. 14  is a schematic cross-sectional view corresponding to  FIG. 6 , described in the foregoing first exemplary embodiment. 
     An electro-optical device  300  of the third exemplary embodiment differs from the electro-optical device  100  of the foregoing first exemplary embodiment in that the overcoat layer  50  is omitted. The rest of the configuration is the same, and thus elements that are the same as those in the electro-optical device  100  of the foregoing first exemplary embodiment will be given the same reference signs, and will not be given detailed descriptions. 
     As illustrated in  FIG. 14 , the electro-optical device  300  of this embodiment is a self-luminous display device in which an element substrate  310 , which includes a plurality of organic EL elements  30  and the color filter  36 , and a transmissive opposing substrate  40 , are disposed opposing each other, and are affixed to each other, interposing the adhesive  41 . 
     In the element substrate  310 , each of the plurality of pixels P arranged in the display region E 1  includes the three sub pixels  18 B,  18 G, and  18 R. Each of the sub pixels  18 B,  18 G, and  18 R has an organic EL element  30 , which includes the light-emission functional layer  32  formed between the pixel electrode  31  and the opposing electrode  33 . The light-emission functional layer  32  and the opposing electrode  33  are formed across the display region E 1 , and are sealed by the sealing layer  34 . 
     The color filter  36  is formed on the sealing layer  34 , in the display region E 1 . The color filter  36  is configured including the blue coloring layers  36 B, the green coloring layers  36 G, and the red coloring layers  36 R, which are formed corresponding to the sub pixels  18 B,  18 G, and  18 R. 
     The frame-shaped dummy CF region E 4  is provided in a position surrounding the display region E 1  on the sealing layer  34 , and the green coloring layer  36 G and the blue coloring layer  36 B are laminated in the dummy CF region E 4  as the dummy CF. Furthermore, the similarly frame-shaped light-shielding portion  36 S (light-shielding region E 3 ) is provided surrounding the dummy CF region E 4 . The light-shielding portion  36 S is formed by laminating the coloring layers  36 G,  36 B, and  36 R, which have different colors, in that order. The coloring layer  36 G formed in the light-shielding region E 3  and the coloring layer  36 G formed in the dummy CF region E 4  are connected. Likewise, the coloring layer  36 B formed in the light-shielding region E 3  and the coloring layer  36 B formed in the dummy CF region E 4  are connected. Note that the average thickness of the coloring layers  36 G is approximately 1 μm, and the average thickness of the coloring layers  36 B and the coloring layers  36 R is approximately 2 μm. The arrangement of the coloring layers  36 B,  36 G, and  36 R in the pixels P is the same as in the above-described first exemplary embodiment. In other words, the coloring layers  36 B are disposed on the sealing layer  34  independently for the sub pixels  18 B, and the coloring layers  36 R are disposed independently for the sub pixels  18 R. The green coloring layers  36 G are disposed in stripe shapes corresponding to a plurality of sub pixels  18 G arranged in the Y direction. 
     In other words, a plurality of grooves  36   a , serving as protrusions and recesses in a stripe pattern extending in the Y direction, are formed on the surface of the color filter  36 , in the element substrate  310 , that is affixed to the adhesive  41 , the grooves  36   a  being formed by the color filter  36 . As illustrated in  FIG. 15 , the grooves  36   a  are formed by the coloring layers  36 G and the coloring layers  36 B (the coloring layers  36 R) in the color filter  36  having different thicknesses. 
     The method of manufacturing the electro-optical device  300  omits the overcoat layer formation process (step S 4 ) from the method of manufacturing the electro-optical device  100  of the foregoing first exemplary embodiment; additionally, in the color filter formation process (step S 3 ) of this embodiment, the coloring layers  36 B,  36 G, and  36 R are formed in the display region E 1  corresponding to the sub pixels  18 B,  18 G, and  18 R, and the coloring layer  36 G and coloring layer  36 B are formed in a frame shape across the light-shielding region E 3  and the dummy CF region E 4 . Furthermore, the light-shielding portion  36 S is formed by laminating the coloring layer  36 R in a frame shape on the coloring layer  36 B in the light-shielding region E 3 . 
     According to the electro-optical device  300  and the method of manufacturing the electro-optical device  300  of the third exemplary embodiment, the following effects can be achieved. 
     (1) In the color filter  36  on the sealing layer  34 , the coloring layers  36 B (coloring layers  36 R) and the coloring layers  36 G adjacent in the X direction serving as the second direction are given different thicknesses, and the coloring layers  36 B (the coloring layers  36 R) are made thinner than the coloring layers  36 G, to form the grooves  36   a  extending in the Y direction on the coloring layers  36 G. In other words, the plurality of grooves  36   a , serving as protrusions and recesses in a stripe pattern, are formed in the surface of the color filter  36  that is affixed to the adhesive  41 . In the process of affixing the element substrate  310  and the opposing substrate  40 , the adhesive  41  spreads out along the grooves  36   a , which extend in the Y direction serving as the first direction and which have no level differences in their base parts, and it is therefore difficult for bubbles to form in the grooves  36   a . In other words, an electro-optical device  300  in which bubbles that affect the display do not easily form, and a method of manufacturing the electro-optical device  300 , can be provided. 
     (2) In the dummy CF region E 4  between the light-shielding region E 3  and the display region E 1 , the coloring layer  36 B is formed in addition to the coloring layer  36 G as the dummy CF, and the height of the coloring layer  36 B on the sealing layer  34  is approximately 3 μm. Accordingly, level differences between the light-shielding portion  36 S and the color filter  36  can be reduced, in the same manner as in the foregoing first exemplary embodiment. As such, when affixing the element substrate  310  and the opposing substrate  40  using the adhesive  41 , a situation in which the substrates are affixed with bubbles present between the light-shielding portion  36 S, which is the highest part on the sealing layer  34 , and the color filter  36 , can be suppressed. 
     The pixels P of the electro-optical device  300  according to the third exemplary embodiment described above are, as in the electro-optical device  100  of the foregoing first exemplary embodiment, configured so that the sub pixels  18 B (the coloring layers  36 B) and the sub pixels  18 R (the coloring layers  36 R) are arranged in the Y direction serving as the first direction, and the sub pixels  18 G (the coloring layers  36 G) are arranged in the X direction, serving as the second direction, with respect to the sub pixels  18 B (the coloring layers  36 B) and the sub pixels  18 R (the coloring layers  36 R). However, the configuration is not limited thereto. For example, the configuration may be such that the sub pixels  18 B (the coloring layers  36 B) and the sub pixels  18 R (the coloring layers  36 R) are arranged in the X direction serving as the first direction, and the sub pixels  18 G (the coloring layers  36 G) are arranged in the Y direction, serving as the second direction, with respect to the sub pixels  18 B (the coloring layers  36 B) and the sub pixels  18 R (the coloring layers  36 R). In this case, the configuration is such that the plurality of grooves  36   a , extending in the X direction and serving as protrusions and recesses in a stripe pattern, are provided in the adhesive surface of the color filter  36 . In other words, the direction in which the plurality of grooves  36   a , serving as the protrusions and recesses in a stripe pattern, extend is not limited to the Y direction, and may be the X direction instead. 
     Fourth Exemplary Embodiment 
     Electronic Apparatus 
     Next, a head-mounted display (HMD) serving as an example of an electronic apparatus in which the electro-optical device of this embodiment is applied in a display unit will be described with reference to  FIG. 16 .  FIG. 16  is a schematic diagram illustrating the configuration of the head-mounted display serving as the electronic apparatus. 
     A head-mounted display (HMD)  1000  includes a pair of optical units  1010 L and  1010 R for displaying information, corresponding to left and right eyes; a mounting part (not illustrated) for mounting the pair of optical units  1010 L and  1010 R on the head area of a user; a power source unit and a control unit (not shown), and the like. Here, the pair of optical units  1010 L and  1010 R are configured to be horizontally symmetrical, and thus the optical unit  1010 R, configured for the right eye, will be described as an example. 
     The optical unit  1010 R includes a display unit  1001 R, a frame-shaped case part  1002 , a focusing optical system  1003 , and a light guide  1004  bent into an L shape. A half mirror layer  1005  is provided in the light guide  1004 . In the optical unit  1010 R, display light emitted from the display unit  1001 R is guided to the right eye by entering the light guide  1004  through the focusing optical system  1003  and being reflected by the half mirror layer  1005 . The display light (image) projected onto the half mirror layer  1005  is a virtual image. Accordingly, the user can visually recognize both the display (the virtual image) by the display unit  1001 R and the outside world beyond the half mirror layer  1005 . In other words, the HMD  1000  is a transmissive (see-through) projection-type display device. 
     The light guide  1004  is configured by combining rod lenses, and forms a rod integrator. The focusing optical system  1003  and the display unit  1001 R are arranged on the side of the light guide  1004  where light enters, and the configuration is such that the display light focused by the focusing optical system  1003  is received by the rod lenses. Additionally, the half mirror layer  1005  of the light guide  1004  has an angle that reflects light beams, which are focused by the focusing optical system  1003  and then fully reflected and transmitted within the rod lenses, toward the right eye. 
     The display unit  1001 R can display a display signal transmitted from the control unit in a display region as image information such as text, and video. The displayed image information is converted from an actual image into a virtual image by the focusing optical system  1003 . The self-luminous electro-optical device  100  of the above-described first exemplary embodiment is applied in the display unit  1001 R of this embodiment. The frame-shaped case part  1002  is provided on the focusing optical system  1003  side of the display unit  1001 R, surrounding the display region, so that light emitted from parts aside from the display region of the display unit  1001 R is not focused by the focusing optical system  1003  and therefore does not affect the display. 
     As described above, the optical unit  1010 L for the left eye includes a display unit  1001 L in which the electro-optical device  100  of the above-described first exemplary embodiment is applied, and the configuration and functions of the optical unit  1010 L are the same as those of the optical unit  1010 R for the right eye. 
     According to this embodiment, the self-luminous electro-optical device  100  is applied in the display units  1001 L and  1001 R, and thus an illumination device such as a backlight is unnecessary, unlike with applying non-luminous type liquid crystal devices. It is therefore possible to provide a see-through type HMD  1000  which is both small and light and which has an attractive display. 
     Note that the HMD  1000  in which the electro-optical device  100  of the above-described first exemplary embodiment is applied is not limited to a configuration including the pair of optical units  1010 L and  1010 R corresponding to both eyes, and the configuration may instead include only the one optical unit  1010 R, for example. The HMD is furthermore not limited to a see-through type, and may instead be an immersive type in which the display is viewed in a state where the outside light is shielded. 
     Furthermore, the electro-optical device  200  of the above-described second exemplary embodiment or the electro-optical device  300  of the above-described third exemplary embodiment may be applied in the display units  1001 L and  1001 R. 
     Note that the invention is not limited to the exemplary embodiment described above, and the exemplary embodiment described above can be variously changed and modified. Modified examples are described below. 
     First Modified Example 
     The planar arrangement of the sub pixels  18 B,  18 G, and  18 R in the pixels P and the color filter  36  corresponding to these sub pixels is not limited to the arrangement illustrated in  FIG. 3 , described in the foregoing first exemplary embodiment.  FIG. 17  is a plan view schematically illustrating the arrangement of sub pixels and a color filter according to a first modified example, and  FIG. 18  is a schematic cross-sectional view illustrating the structure of the color filter and an overcoat layer, taken along line D-D□ from  FIG. 17 . 
     As illustrated in  FIG. 17 , in the first modified example, pixels P adjacent in the X direction are arranged so that the sub pixel  18 G of one of the pixels P is adjacent to the sub pixel  18 G of the other pixel P in the X direction. The green coloring layers  36 G are disposed in stripe shapes corresponding to two columns□ worth of sub pixels  18 G arranged in the Y direction. Accordingly, as illustrated in  FIG. 18 , forming the OC layer  50  through patterning to overlap with the coloring layers  36 B and the coloring layers  36 R forms grooves  50   b , which span two pixels P adjacent in the X direction and which extend in the Y direction. In other words, the grooves  50   b , which are wider than the grooves  50   a  according to the above-described first exemplary embodiment, are formed. As such, during the process for affixing the element substrate  10  to the opposing substrate  40 , the adhesive  41  spreads out along the wide grooves  50   b , and it is difficult for bubbles to form in the grooves  50   b . Note that as described in the foregoing first exemplary embodiment, the arrangement of the sub pixels  18 B,  18 G, and  18 R in the pixels P is not limited to the arrangement described here, and a configuration is also possible in which the grooves  50   b  of the above-described first modified example, obtained by patterning the OC layer  50 , extend in the X direction. 
     Second Modified Example 
     The planar arrangement of the sub pixels  18 B,  18 G, and  18 R in the pixels P and the color filter  36  corresponding to these sub pixels is not limited to the arrangement illustrated in  FIG. 3 , described in the foregoing first exemplary embodiment.  FIG. 19  is a plan view schematically illustrating the arrangement of sub pixels and a color filter according to a second modified example, and  FIG. 20  is a schematic cross-sectional view illustrating the structure of the color filter and an overcoat layer, taken along line F-F□ from  FIG. 19 . 
     As illustrated in  FIG. 19 , in the second modified example, each pixel P includes two sub pixels  18 B, one sub pixel  18 G, and one sub pixel  18 R, for example. In the pixel P, a sub pixel  18 B and the sub pixel  18 R are arranged in the Y direction. The sub pixel  18 G is arranged adjacent to a sub pixel  18 B in the X direction. The other sub pixel  18 B is arranged adjacent to the sub pixel  18 R in the X direction. The openings for the sub pixels  18 B,  18 G, and  18 R are the same size, but as two sub pixels  18 B are used in each pixel P, the region from which blue light is emitted is substantially larger. The coloring layers  36 B,  36 G, and  36 R in the color filter  36  are arranged independently, corresponding to this arrangement of the sub pixels  18 B,  18 G, and  18 R. With this arrangement for the coloring layers  36 B,  36 G, and  36 R, in a case where each of the coloring layers are given different thicknesses, complex level differences will arise in the color filter  36  within the pixels P. As illustrated in  FIG. 20 , in the second modified example, the first OC layer  51  is first formed to cover the color filter  36 , after which the second OC layer  52  is formed on the first OC layer  51  through patterning in positions overlapping with the coloring layers  36 B and the coloring layers  36 R, for example, when viewed in plan view, in the same manner as in the second exemplary embodiment. As a result, the plurality of grooves  52   a , serving as protrusions and recesses in a stripe pattern extending in the Y direction, are formed on the color filter  36 , in positions overlapping with the coloring layers  36 G and the coloring layers  36 B when viewed in plan view. Accordingly, in the process of affixing the element substrate and the opposing substrate  40  in the second modified example, the adhesive  41  spreads out along the plurality of grooves  52   a , and it is difficult for bubbles to form in the grooves  52   a . Note that the pixel P is not limited to including the three sub pixels  18 B,  18 G, and  18 R, and may, for example, include a sub pixel  18 Y for yellow (Y) in addition to blue (B), green (G), and red (R). Furthermore, even if the pixel P includes a total of four sub pixels  18 , the direction in which the plurality of grooves  52   a  formed on the color filter  36  extend is not limited to the Y direction, and may be the X direction instead, as described in the foregoing second exemplary embodiment. 
     Third Modified Example 
     In the above-described second exemplary embodiment, the second OC layer  52  is formed on the first OC layer  51  through patterning, in positions overlapping with the coloring layers  36 B and the coloring layers  36 R arranged in the Y direction, when viewed in plan view. However, the method of forming the second OC layer  52  is not limited thereto. Because the first OC layer  51  is formed covering the color filter  36 , it is difficult for differences in the thicknesses of the coloring layers  36 B,  36 G, and  36 R in the color filter  36  to have an effect on the affixing process. Thus, the direction in which the second OC layer  52  is formed as stripes is not limited to the Y direction, and may be the X direction instead. Additionally, the stripe-shaped second OC layer  52  is not limited to being formed for each of the pixels P, and the stripe-shaped second OC layer  52  having desired widths with desired gaps may be formed on the first OC layer  51 . 
     Fourth Modified Example 
     The electronic apparatus in which the electro-optical devices of the above-described embodiments is applied is not limited to the head-mounted display (HMD) of the above-described fourth exemplary embodiment. For example, the electro-optical device can be favorably used in the display unit of an electronic viewfinder in a digital camera or the like, a head-up display, a mobile information terminal, and the like. 
     The following describes details that can be derived from the embodiments. 
     An electro-optical device according to an aspect of the invention includes, a first substrate including a plurality of light-emitting elements and a color filter provided corresponding to the plurality of light-emitting elements, and a second substrate being a transmissive substrate and disposed facing the first substrate with an adhesive provided between the first substrate and the second substrate, wherein an adhesive surface of the color filter of the first substrate is provided with protrusions and recesses in a stripe pattern. 
     According to the configuration of this aspect, when affixing the first substrate and the second substrate, the adhesive spreads out along the protrusions and recesses in a stripe pattern at the adhesive surface of the color filter. Accordingly, even if the coloring layers constituting the color filter have, for example, different thicknesses from color to color and complex level differences arise as a result, problems such as unevenness in the application of the adhesive, bubbles forming in the adhesive, and the like can be reduced. In other words, an electro-optical device in which bubbles that affect the display do not easily form can be provided. 
     Preferably, the above-described electro-optical device further including an overcoat layer provided on the color filter, the overcoat layer being a transmissive layer, and the overcoat layer is provided with protrusions and recesses in a stripe pattern. 
     According to this configuration, providing the overcoat layer on the color filter makes it difficult for the device to be affected by level differences produced by differences in the thicknesses of the coloring layers. In other words, an electro-optical device in which bubbles that affect the display form even less easily can be provided. 
     Preferably, in the above-described electro-optical device, the color filter includes coloring layers of at least three colors, and the overcoat layer covers a coloring layer arranged in a first direction among the coloring layers of at least three colors. 
     According to this configuration, the protrusions and recesses in a stripe pattern can be realized by the overcoat layer in each pixel provided with the coloring layers of at least three colors. 
     Additionally, in the above-described electro-optical device, the coloring layer arranged in the first direction may include coloring layers having different thicknesses. 
     According to this configuration, the coloring layers of different thicknesses that are arranged in the first direction are covered by the overcoat layer, and as a result, the coloring layers having different thicknesses has no effect when adhering the first substrate and the second substrate. 
     Additionally, in the above-described electro-optical device, a coloring layer arranged in a second direction intersecting with the first direction may have a thickness different from that of the coloring layer arranged in the first direction. 
     According to this configuration, the coloring layer arranged in the second direction has a thickness different from that of the coloring layer arranged in the first direction, and thus protrusions and recesses in a stripe pattern extending in the first direction can be configured at the adhesive surface of the color filter. 
     Preferably, in the above-described electro-optical device, the overcoat layer includes a first overcoat layer covering the color filter, and a second overcoat layer extending in a first direction on the first overcoat layer, and the protrusions and recesses in a stripe pattern are formed by the first overcoat layer and the second overcoat layer. 
     According to this configuration, the color filter is covered by the first overcoat layer, and thus even if the coloring layers constituting the color filter have, for example, different thicknesses from color to color, the first substrate and the second substrate can be affixed to each other, interposing the adhesive without being affected by level differences between the coloring layers. 
     Additionally, in the above-described electro-optical device, the color filter may include coloring layers of at least three colors, and the protrusions and recesses in a stripe pattern may be formed by making thicknesses of two coloring layers of different colors among the coloring layers of at least three colors, different from each other. 
     According to this configuration, the protrusions and recesses in a stripe pattern are provided by giving two coloring layers of different colors different thicknesses at the adhesive surface of the color filter. Accordingly, when affixing the first substrate and the second substrate using the adhesive, the adhesive spreads out along the protrusions and recesses, which makes it possible to affix the first substrate and the second substrate in a state where bubbles do not easily form. 
     Preferably, in the above-described electro-optical device, the color filter includes coloring layers of at least three colors, and a light-shielding portion formed by laminating the coloring layers of at least three colors is provided in a position surrounding a light-emitting region, the light-emitting region being a region in which the plurality of light-emitting elements are disposed. 
     According to this configuration, the light-shielding portion formed by laminating the coloring layers of at least three colors is provided in a position surrounding the light-emitting region, and thus light leaking from the light-emitting region can be shielded by the light-shielding portion, making it possible to provide an electro-optical device capable of an attractive display. 
     A method of manufacturing an electro-optical device according to an aspect of the invention is a method of manufacturing an electro-optical device including a plurality of light-emitting elements and a color filter, the method including, forming a sealing layer sealing the plurality of light-emitting elements across a light-emitting region of a first substrate, the light-emitting region being a region in which the plurality of light-emitting elements are disposed, forming a color filter by forming coloring layers of at least three colors on the sealing layer, the coloring layers corresponding to the plurality of light-emitting elements, forming an overcoat layer covering a coloring layer arranged in a first direction among the coloring layers of at least three colors, the overcoat layer being a transmissive layer, and affixing the first substrate to a second substrate using an adhesive, the first substrate being a substrate on which the overcoat layer is formed and the second substrate being a transmissive substrate. 
     According to this method, when forming the overcoat layer, the protrusions and recesses in a stripe pattern extending in the first direction can be formed at the adhesive surface of the color filter. As such, during the affixing, the adhesive can spread out along the protrusions and recesses in a stripe pattern, and thus the first substrate and the second substrate can be affixed to each other, without being affected by level differences caused by the thicknesses of the coloring layers in the color filter, while reducing problems such as unevenness in the application of the adhesive and bubbles forming in the adhesive. In other words, a method of manufacturing an electro-optical device in which bubbles that affect the display do not easily form can be provided. 
     A method of manufacturing an electro-optical device according to another aspect of the invention is a method of manufacturing an electro-optical device including a plurality of light-emitting elements and a color filter, the method including, forming a sealing layer sealing the plurality of light-emitting elements across a light-emitting region of a first substrate, the light-emitting region being a region in which the plurality of light-emitting elements are disposed, forming a color filter by forming coloring layers of at least three colors on the sealing layer, the coloring layers corresponding to the plurality of light-emitting elements, forming a first overcoat layer covering the color filter, with the first overcoat layer being a transmissive layer, and forming a second overcoat layer extending in the first direction on the first overcoat layer, with the second overcoat layer being a transmissive layer, and affixing the first substrate to a second substrate using an adhesive, the first substrate being a substrate provided with the first overcoat layer and the second overcoat layer the second substrate being a transmissive substrate. 
     According to the method of this other aspect, during the forming of the overcoat layer, the first overcoat layer is formed covering the color filter, and the second overcoat layer is furthermore formed on the first overcoat layer. Accordingly, the protrusions and recesses in a stripe pattern can be formed at the adhesive surface of the color filter by the second overcoat layer extending in the first direction. As such, during the affixing, the adhesive can spread out along the protrusions and recesses in a stripe pattern, and thus the first substrate and the second substrate can be affixed to each other, without being affected by level differences caused by the thicknesses of the coloring layers in the color filter, while reducing problems such as unevenness in the application of the adhesive and bubbles forming in the adhesive. In other words, a method of manufacturing an electro-optical device in which bubbles that affect the display do not easily form can be provided. 
     A method of manufacturing an electro-optical device according to another aspect of the invention is a method of manufacturing an electro-optical device including a plurality of light-emitting elements and a color filter, the method including, forming a sealing layer sealing the plurality of light-emitting elements across a light-emitting region of a first substrate, the light-emitting region being a region in which the plurality of light-emitting elements are disposed, forming a color filter by forming coloring layers of at least three colors on the sealing layer, the coloring layers corresponding to the plurality of light-emitting elements, and affixing the first substrate to a second substrate using an adhesive, the first substrate being a substrate on which the color filter is formed, with the second substrate being a transmissive substrate, wherein in the forming of the color filter, a first coloring layer and a second coloring layer among the coloring layers of at least three colors are formed to be arranged in a first direction, and a third coloring layer having a different thickness from the first coloring layer and the second coloring layer is formed and arranged adjacent to the first coloring layer and the second coloring layer in a second direction intersecting with the first direction. 
     According to the method of this other aspect, during the forming of the color filter, the third coloring layer is formed adjacent in the second direction to, and having a different thickness with respect to the first coloring layer and the second coloring layer, which are arranged in the first direction. As such, the protrusions and recesses in a stripe pattern extending in the first direction are formed on the color filter. As such, during the affixing, the adhesive can spread out along the protrusions and recesses in a stripe pattern, and thus the first substrate and the second substrate can be affixed to each other, without being affected by level differences caused by the thicknesses of the coloring layers in the color filter, while reducing problems such as unevenness in the application of the adhesive and bubbles forming in the adhesive. In other words, a method of manufacturing an electro-optical device in which bubbles that affect the display do not easily form can be provided. 
     Preferably, in the above-described method of manufacturing an electro-optical device, in the forming of the color filter, a light-shielding portion is formed by laminating the coloring layers of at least three colors in a position surrounding the light-emitting region. 
     According to this method, the light-shielding portion formed by layering the coloring layers of at least three colors is formed in a position surrounding the light-emitting region, and thus light leaking from the light-emitting region can be shielded by the light-shielding portion, making it possible to manufacture an electro-optical device capable of an attractive display. 
     Preferably, in the above-described method of manufacturing an electro-optical device, in the forming of the color filter, a light-shielding portion is formed by layering the coloring layers of at least three colors in a position surrounding the light-emitting region and in the forming of the overcoat layer, the overcoat layer is formed on an inner side of the light-shielding portion. 
     According to this method, a level difference arising between the light-shielding portion and the color filter provided in the light-emitting region can be reduced by the overcoat layer. Accordingly, during the affixing, the adhesive can easily pass over the light-shielding portion and spread out, which makes it possible to reduce situations where bubbles form in the adhesive at the level difference between the light-shielding portion and the color filter. 
     An electronic apparatus according to an aspect of the invention including the above-described electro-optical device. 
     According to the configuration of this aspect, a self-luminous electro-optical device in which it is at least difficult for bubbles to arise in the light-emitting region is included, and thus an electronic apparatus capable of an attractive display can be provided. 
     The entire disclosure of Japanese Patent Application No. 2018-036220, filed Mar. 1, 2018 is expressly incorporated by reference herein.