Display device and display device manufacturing method

Abstract

This display device comprises a plurality of sub-pixels that are arranged in a two-dimensional array and each output light of a corresponding color. Each of the plurality of sub-pixels includes a light-emitting region that emits light of the color of the sub-pixels. The distance between the light-emitting regions of different-color sub-pixels adjacent to each other and the distance between the light-emitting regions of the same-color sub-pixels adjacent to each other are different from each other.

Description

Display device and method for manufacturing a display device

[0001] This disclosure relates to a display device and a method for manufacturing a display device.

[0002] Some display devices have different light-emitting layers (light-emitting materials) applied to each subpixel according to the color of the light they emit (see, for example, Patent Document 1).

[0003] International Publication No. 2020 / 004086

[0004] In display devices with different colored light-emitting layers, the distance between subpixels of different colors increases. If the distance between subpixels of the same color is also increased accordingly, it becomes difficult to increase the resolution of the display device.

[0005] One aspect of this disclosure is that it enables high-definition.

[0006] A display device according to one aspect of the present disclosure comprises a plurality of subpixels arranged in a two-dimensional array, each of which outputs light of a corresponding color, and each of the plurality of subpixels includes a light-emitting region that emits light of the color of the subpixel, wherein the distance between the light-emitting regions of adjacent subpixels of different colors and the distance between the light-emitting regions of adjacent subpixels of the same color are different from each other.

[0007] A method for manufacturing a display device according to one aspect of the present disclosure includes forming an anode electrode, forming a light-emitting layer so as to cover the anode electrode, and forming a cathode electrode so as to cover the light-emitting layer, wherein the display device comprises a plurality of subpixels arranged in a two-dimensional array, each of which outputs light of a corresponding color, and each of the plurality of subpixels includes a light-emitting region in the light-emitting layer that is in contact with both the anode electrode and the cathode electrode, and the distance between the light-emitting regions of adjacent subpixels of different colors and the distance between the light-emitting regions of adjacent subpixels of the same color are different from each other.

[0008] This figure shows an example of the schematic configuration of the display device 1 according to the embodiment. This figure shows an example of the configuration of the subpixel 30. This figure shows an example of the schematic configuration of the subpixel 30. This figure shows an example of the schematic configuration of the pixel area 2. This figure shows an example of the schematic configuration of the pixel area 2. This figure shows an example of distances D1 and D2. This figure shows an example of the manufacturing method of the display device 1 schematic configuration of the pixel area 2. This figure shows an example of the schematic configuration of the pixel area 2. This figure shows an example of the schematic configuration of the pixel area 2. This figure shows an example of the schematic configuration of the pixel area 2. This figure shows an example of the schematic configuration of the pixel area 2. This is a conceptual diagram (1) to explain the relationship between the normal vector LN passing through the center of the light-emitting part, the normal vector LN' passing through the center of the lens member, and the normal vector LN" passing through the center of the wavelength-selecting part. This is a conceptual diagram (2) to explain the relationship between the normal vector LN passing through the center of the light-emitting part, the normal vector LN' passing through the center of the lens member, and the normal vector LN" passing through the center of the wavelength-selecting part. This is a conceptual diagram (3) to explain the relationship between the normal vector LN passing through the center of the light-emitting part, the normal vector LN' passing through the center of the lens member, and the normal vector LN" passing through the center of the wavelength-selecting part. This is a conceptual diagram (4) to explain the relationship between the normal vector LN passing through the center of the light-emitting part, the normal vector LN' passing through the center of the lens member, and the normal vector LN" passing through the center of the wavelength-selecting part. This is a conceptual diagram (No. 5) illustrating the relationship between the normal vector LN passing through the center of the light-emitting part, the normal vector LN' passing through the center of the lens member, and the normal vector LN'' passing through the center of the wavelength-selecting part. This is a conceptual diagram (No. 6) illustrating the relationship between the normal vector LN passing through the center of the light-emitting part, the normal vector LN' passing through the center of the lens member, and the normal vector LN'' passing through the center of the wavelength-selecting part. This is a conceptual diagram (No. 7) illustrating the relationship between the normal vector LN passing through the center of the light-emitting part, the normal vector LN' passing through the center of the lens member, and the normal vector LN'' passing through the center of the wavelength-selecting part.This is a schematic cross-sectional view illustrating the first example of a resonator structure. This is a schematic cross-sectional view illustrating the second example of a resonator structure. This is a schematic cross-sectional view illustrating the third example of a resonator structure. This is a schematic cross-sectional view illustrating the fourth example of a resonator structure. This is a schematic cross-sectional view illustrating the fifth example of a resonator structure. This is a schematic cross-sectional view illustrating the sixth example of a resonator structure. This is a schematic cross-sectional view illustrating the seventh example of a resonator structure. This is a front view showing an example of the appearance of a digital still camera. This is a rear view showing an example of the appearance of a digital still camera. This is an external view of a head-mounted display. This is an external view of a see-through head-mounted display. This is an external view of a television system. This is an external view of a smartphone. This is a diagram (1) showing the internal configuration of an automobile. This is a diagram (2) showing the internal configuration of an automobile.

[0009] Embodiments of this disclosure will be described in detail below with reference to the drawings. In each of the following embodiments, the same elements will be denoted by the same reference numerals to avoid redundant descriptions.

[0010] This disclosure will be described in the following order of items: 1. Embodiments 2. Examples of Manufacturing Methods 3. Modifications 4. Other Modifications 4.1 Modification 1 4.2 Modification 2 5. Application Examples 6. Summary

[0011] 1. Figure 1 of the embodiment shows an example of the schematic configuration of the display device 1 according to the embodiment. The XYZ coordinate system is also shown. The X-axis direction and the Y-axis direction (XY plane direction) correspond to the horizontal and vertical directions of the display device 1, in other words, the display surface direction of the display device 1. The Z-axis direction corresponds to the thickness direction of the display device 1, in other words, the front-to-back direction of the display device 1. Figure 1 shows the display device 1 when viewed from above (viewed in the negative Z-axis direction).

[0012] The display device 1 includes a pixel region 2 and a peripheral region 19. The pixel region 2 extends in the direction of the display surface (XY plane direction) of the display device 1. In this example, the pixel region 2 has a rectangular shape.

[0013] Pixel region 2 contains multiple pixels 3. The multiple pixels 3 are periodically arranged in a two-dimensional array across the entire pixel region 2. The row direction of the array corresponds to the X-axis direction, and the column direction corresponds to the Y-axis direction. Pixel region 2 also contains multiple subpixels 30. The multiple subpixels 30 are arranged in a two-dimensional array across the entire pixel region 2. Each of the multiple subpixels 30 emits light of a corresponding color. Examples of light include red (R) light, green (G) light, and blue (B) light.

[0014] A subpixel 30 that emits red light is also called subpixel 30R. A subpixel 30 that emits green light is also called subpixel 30G. A subpixel 30 that emits blue light is also called subpixel 30B. When these are not specifically distinguished, they are simply referred to as subpixel 30 or each subpixel 30.

[0015] Each pixel 3 includes two or more subpixels 30 that output different colors from each other. Unless otherwise specified, each pixel 3 includes subpixels 30R, 30G, and 30B.

[0016] The peripheral region 19 is a region located around the pixel region 2. In this example, there are four peripheral regions 19, each positioned opposite the sides of the rectangular pixel region 2.

[0017] Various elements are provided in the peripheral region 19. For example, circuits (peripheral circuits) for performing various controls necessary for the operation of the display device 1 are provided in the peripheral region 19. An example of control by peripheral circuits is the control of the light emission of each subpixel 30. For example, each subpixel 30 contains elements such as transistors for driving light emission, and these elements are controlled by peripheral circuits.

[0018] Furthermore, the peripheral region 19 may also be provided with terminals used for accessing external devices of the display device 1. For example, the signal for the image to be displayed by the display device 1 is supplied to the peripheral circuit via the terminals. In accordance with this signal, the peripheral circuit controls the light emission of each subpixel 30 within the pixel region 2.

[0019] Figure 2 shows an example of the configuration of a sub-pixel 30. The sub-pixel 30 includes a light-emitting element 31, a drive transistor 33, a capacitor 34, and a writing transistor 35. The capacitance of the light-emitting element 31 is schematically shown as a capacitor 32. The peripheral region 19 includes a horizontal drive circuit 191 and a vertical drive circuit 192. Signal lines HL and VL are indicated by their reference numerals. Power lines PL1 and PL2 are indicated by their reference numerals.

[0020] In the following explanation, when a transistor is said to be connected between two elements, it should be understood to mean that one of the transistor's drains and sources is connected to one element, and the other of its drains and sources is connected to the other element.

[0021] The light-emitting element 31 is a self-emitting light-emitting element, more specifically a light-emitting diode (LED). The light-emitting element 31 is connected between the drive transistor 33 and the power line PL2. The anode of the light-emitting element 31 is connected to the drive transistor 33. The cathode of the light-emitting element 31 is connected to the power line PL2. The light-emitting element 31 emits light when current flows from the anode to the cathode. The capacitance of the light-emitting element 31 is represented by the capacitor 32 connected in parallel with the light-emitting element 31.

[0022] The drive transistor 33 is connected between the power line PL1 and the light-emitting element 31. The gate of the drive transistor 33 is connected to the signal line VL via the write transistor 35. When the drive transistor 33 is ON (conducting), current flows from the power line PL1 to the power line PL2 through the drive transistor 33 and the light-emitting element 31, causing the light-emitting element 31 to emit light. When the drive transistor 33 is OFF (non-conducting), no current flows, and the light-emitting element 31 does not emit light.

[0023] Capacitor 34 is connected between the connection point of the power line PL1 and the drive transistor 33 and the gate of the drive transistor 33.

[0024] The writing transistor 35 is connected between the signal line VL and the gate of the driving transistor 33. The signal line VL is supplied with a signal from the vertical driving circuit 192. When the writing transistor 35 is ON, its control signal is supplied to the gate of the driving transistor 33 via the writing transistor 35. The signal line HL is connected to the gate of the writing transistor 35. The signal line HL is supplied with a signal (scanning signal) from the horizontal driving circuit 191, which controls the ON and OFF states of the writing transistor 35.

[0025] The following describes the overview of driving pixel 3. A voltage corresponding to the brightness of the image to be displayed is supplied from the vertical drive circuit 192 to the signal line VL. In this state, the writing transistor 35 is turned on by a signal from the horizontal drive circuit 191, and the voltage corresponding to the brightness is written (held) in the capacitor 34. After the writing transistor 35 is turned off, current flows through the drive transistor 33 according to the voltage written in the capacitor 34. This current flows through the light-emitting element 31, causing the light-emitting element 31 to emit light.

[0026] In the above example, the case where each sub-pixel 30 includes a driving element such as a driving transistor 33 and a writing transistor 35 was described as an example. However, if there are two or more sub-pixels 30 that output light of the same color in the same pixel 3, the driving elements of those sub-pixels 30 may be used in common. Also, the circuit configuration shown in Figure 2 is merely an example. Various known circuit configurations that can control the light emission of the light-emitting element 31 may be used.

[0027] Figure 3 shows an example of the schematic configuration of a subpixel 30. A schematic cross-section of a part of the subpixel 30 is shown when viewed from the side (viewed from a direction perpendicular to the Z-axis direction). Figure 3(A) schematically shows the cross-section of subpixel 30R. Figure 3(B) schematically shows the cross-section of subpixel 30G. Figure 3(C) schematically shows the cross-section of subpixel 30B.

[0028] Pixel region 2 includes an anode electrode 5 (lower electrode), a light-emitting layer 6, a cathode electrode 7 (upper electrode), a protective layer 8 (sealing layer), a planarization layer 9, a color filter layer 10, a lens layer 11, a resin layer 12, and an upper substrate 13. These are collectively referred to as the anode electrode 5 to the upper substrate 13. The anode electrode 5 to the upper substrate 13 are provided in order in the positive Z-axis direction. Note that a layer may be interpreted to include a film, and they may be appropriately read as such within a non-contradictory range.

[0029] The anode electrode 5 to the upper substrate 13 extend in the XY plane direction as a plane direction and have a thickness in the Z-axis direction. They exist in each sub-pixel 30, and thus each sub-pixel 30 includes the anode electrode 5 to the upper substrate 13. The sub-pixel 30 when viewed from the anode electrode 5 to the upper substrate 13 located in a certain sub-pixel 30 is also referred to as the corresponding sub-pixel 30.

[0030] Note that, below the anode electrode 5 (on the negative Z-axis side), a semiconductor substrate on which, for example, a driving transistor 33, a pixel 3, a writing transistor 35, etc. described above with reference to FIG. 2 are formed may be disposed via an insulating layer.

[0031] The anode electrode 5, the light-emitting layer 6, and the cathode electrode 7 constitute a light-emitting element 31. As described above, the light-emitting element 31 is an LED, and its anode and cathode correspond to the anode electrode 5 and the cathode electrode 7. The light-emitting layer 6 is provided between the anode electrode 5 and the cathode electrode 7, and its material, etc. are designed so as to be able to emit light of the color of the corresponding sub-pixel 30. In the example shown in FIG. 3, the light-emitting element 31 is an OLED (Organic Light Emitting Diode). The light-emitting layer 6 includes an organic material.

[0032] The light-emitting layer 6 provided in the sub-pixel 30R is referred to as the light-emitting layer 6R. The light-emitting layer 6 provided in the sub-pixel 30G is referred to as the light-emitting layer 6G. The light-emitting layer 6 provided in the sub-pixel 30B is referred to as the light-emitting layer 6B. When not particularly distinguishing these, they are simply referred to as the light-emitting layer 6 or each light-emitting layer 6.

[0033] The light-emitting layers 6 that emit different colors are formed separately. For example, the light-emitting layer 6R is formed using a material that emits red light. The light-emitting layer 6G is formed using a material that emits green light. The light-emitting layer 6B is formed using a material that emits blue light. The light-emitting layers 6 of the same-color sub-pixels 30 adjacent to each other may be integrally formed.

[0034] Various methods are used to form the light-emitting layer 6. An example of the forming method is mask evaporation. With the regions other than the region corresponding to the light-emitting layer 6 of a specific color covered with a mask, the material of the light-emitting layer 6 of that color is evaporated, thereby forming the light-emitting layer 6. An example of another method is shaping. After the material of the light-emitting layer 6 is provided, the material is shaped so as to obtain the light-emitting layer 6. Unless otherwise specified, it is assumed that the light-emitting layer 6 is formed by mask evaporation.

[0035] The anode electrodes 5 are provided separately and electrically isolated for each sub-pixel 30. The anode electrode 5 provided for the sub-pixel 30R is referred to as the anode electrode 5R and illustrated. The anode electrode 5 provided for the sub-pixel 30G is referred to as the anode electrode 5G and illustrated. The anode electrode 5 provided for the sub-pixel 30B is referred to as the anode electrode 5B and illustrated. When not particularly distinguishing these, they are simply referred to as the anode electrode 5 or each anode electrode 5.

[0036] An insulating portion 50 is provided between the anode electrodes 5 of the sub-pixels 30 adjacent to each other. The insulating portion 50 may be a layer (insulating layer) extending in the XY plane direction. Note that the sub-pixels 30 adjacent to each other refer to the sub-pixels 30 arranged adjacent to each other among the plurality of sub-pixels 30 arranged in an array.

[0037] In the following description, the sub-pixels 30 that output the same color to each other are also referred to as same-color sub-pixels 30. The sub-pixels 30 that output different colors to each other are also referred to as different-color sub-pixels 30.

[0038] The cathode electrode 7 is provided in common across, for example, same-colored sub-pixels 30 located within an adjacent range. The cathode electrode 7 provided in sub-pixel 30R is referred to as cathode electrode 7R and is shown in the figure. The cathode electrode 7 provided in sub-pixel 30G is referred to as cathode electrode 7G and is shown in the figure. The cathode electrode 7 provided in sub-pixel 30B is referred to as cathode electrode 7B and is shown in the figure. When these are not specifically distinguished, they are simply referred to as cathode electrode 7 or each cathode electrode 7.

[0039] The region of the light-emitting layer 6 that is in contact with both the anode electrode 5 and the cathode electrode 7 emits light. This region is called the light-emitting region 60. Each subpixel 30 includes a light-emitting region 60 that emits light of the color of that subpixel 30. Specifically, subpixel 30R includes a light-emitting region 60R that emits red light. Subpixel 30G includes a light-emitting region 60G that emits green light. Subpixel 30B includes a light-emitting region 60B that emits blue light.

[0040] The protective layer 8 is provided so as to cover the cathode electrode 7. An example of the material for the protective layer 8 is resin. The planarization layer 9 is provided so as to cover the protective layer 8. A material that is easier to planarize than the protective layer 8 may be selected for the planarization layer 9.

[0041] The color filter layer 10 is provided on the planarization layer 9. The color filter layer 10 allows light of the corresponding color from the light-emitting region 60 of the corresponding subpixel 30 to pass through. Various known materials (e.g., resin) suitable for allowing light of the desired color to pass through may be used.

[0042] Specifically, the color filter layer 10 includes a color filter for each subpixel 30 that allows light of the color of that subpixel 30 to pass through. The color filter provided on subpixel 30R is referred to as color filter 10R and is shown in the figure. Color filter 10R allows red light to pass through. The color filter provided on subpixel 30G is referred to as color filter 10G and is shown in the figure. Color filter 10G allows green light to pass through. The color filter provided on subpixel 30B is referred to as color filter 10B and is shown in the figure. Color filter 10B allows blue light to pass through.

[0043] The lens layer 11 is provided on the opposite side of the light-emitting layer 6 (or its light-emitting region 60), with the color filter layer 10 in between. In this example, the lens layer 11 is provided on the color filter layer 10. The lens layer 11 includes a lens for each subpixel 30 that directs the light emitted by that subpixel 30, for example, a lens that brings the direction of light propagation closer to the positive Z-axis direction. The lens provided at subpixel 30R is referred to as lens 11R and is shown in the figure. The lens provided at subpixel 30G is referred to as lens 11G and is shown in the figure. The lens provided at subpixel 30B is referred to as lens 11B and is shown in the figure. Lenses 11R, 11G, and 11B are also referred to as on-chip lenses (OCL), microlenses, etc.

[0044] The resin layer 12 is provided so as to cover the lens layer 11. The upper substrate 13 is provided on the resin layer 12. The surface of the upper substrate 13 on the positive Z-axis side is referred to as the upper surface 13a and is shown in the figure.

[0045] In the display device 1 having the above configuration, light from the light-emitting layer 6 of each subpixel 30 passes through the color filter layer 10 and the lens layer 11, etc., and is output from the upper surface 13a of the upper substrate 13.

[0046] To obtain a pixel region 2 containing multiple subpixels 30, it is necessary to form (paint) light-emitting layers 6 according to the color of the subpixels 30. In order to paint the light-emitting layers 6 according to the color, it is necessary to mask-deposit or shape-process the material of the light-emitting layers 6. As a result, the distance between the light-emitting layers 6 of adjacent subpixels 30 of different colors becomes longer. If the distance between the light-emitting layers 6 of adjacent subpixels 30 of the same color is also increased accordingly, the arrangement density (integration density) of the subpixels 30 in the pixel region 2 decreases, hindering the high resolution of the display device 1.

[0047] In the display device 1 according to this embodiment, the above-mentioned problems are addressed by devising the distance between the light-emitting regions 60 of the subpixels 30. This will be explained with reference to Figures 4 and 5.

[0048] Figures 4 and 5 show examples of the schematic configuration of the pixel region 2. Figure 4 schematically shows a part of the pixel region 2 when viewed from above (viewed in the negative Z-axis direction). Figure 5 schematically shows a cross-section of a part of the pixel region 2 when viewed along the V-V line in Figure 4.

[0049] In Figure 4, each pixel 3 is shown enclosed by a thick line. In this example, multiple pixels 3 are arranged according to a square arrangement. Each pixel 3 also contains four subpixels 30 arranged according to a square arrangement. The four subpixels 30 include one subpixel 30R, two subpixels 30G, and one subpixel 30B, arranged according to a Bayer arrangement.

[0050] The pixel arrangement shown in Figure 4 may be applied to the entire pixel region 2, or it may be applied to only a part of the pixel region 2.

[0051] Figure 5 also shows an insulating layer 4 located below the anode electrode 5 and the insulating portion 50. The insulating layer 4 may also be a component of each subpixel 30. The insulating layer 4 includes vias 40. One end of the via 40 is connected to an electrode provided on the insulating layer 4, in this example, the corresponding anode electrode 5. The other end of the via 40, with one end connected to the anode electrode 5, is connected to the drive transistor 33 shown in Figure 2.

[0052] In the pixel region 2, there are adjacent subpixels 30 of the same color. In the example shown in Figure 4, a subpixel group consisting of four subpixels 30 of the same color is arranged according to a square arrangement. As shown in Figure 5, the distance between the light-emitting regions 60 of adjacent subpixels 30 of the same color is called the distance D1.

[0053] Furthermore, the pixel region 2 also contains adjacent subpixels of different colors 30. In the example shown in Figure 4, there are adjacent subpixels 30R and 30G, subpixel 30G and 30B, and subpixel 30B and 30R. Each pixel 3 contains adjacent subpixels of different colors 30. As shown in Figure 5, the distance between the light-emitting regions 60 of adjacent subpixels of different colors 30 is referred to as the distance D2.

[0054] In the pixel region 2 of the display device 1 according to this embodiment, distance D2 and distance D1 are different from each other. Unless otherwise specified, in this exemplary embodiment, distance D2 is assumed to be greater than distance D1. The distances between the anode electrodes 5 of adjacent subpixels 30 may be adjusted to achieve this relationship. For example, the distance between the anode electrodes 5 of adjacent subpixels 30 of different colors may be greater than the distance between the anode electrodes 5 of adjacent subpixels 30 of the same color. In the example shown in Figure 5, the distance between the anode electrodes 5G of adjacent subpixels 30G and 30B of adjacent subpixels 30B is greater than the distance between the anode electrodes 5G of adjacent subpixels 30G, and also greater than the distance between the anode electrodes 5B of adjacent subpixels 30B. For example, in this way, distance D2 can be made greater than distance D1.

[0055] The magnitudes of distances D1 and D2 may be the same throughout the entire pixel region 2, or they may differ in different parts of the pixel region 2, as long as the relationship that distance D2 is greater than distance D1 is maintained. For example, the magnitudes of distances D1 and D2 may be smaller in the peripheral parts of the pixel region 2 than in the central part.

[0056] The shapes of each subpixel 30 and each light-emitting region 60 when viewed from above may be the same or different. The term "shape" may be interpreted to include the type of shape, and further to include its size (area). Examples of types of shapes include rectangular, polygonal, and circular shapes. A rectangular shape is a square or rectangular shape. Examples of polygonal shapes include hexagonal (honeycomb), octagonal, decagonal, and dodecagonal shapes. A circular shape may be interpreted to include elliptical shapes.

[0057] Distances D1 and D2 between the light-emitting regions 60 of subpixels 30 having various shapes can be defined. See also Figure 6 for further explanation.

[0058] Figure 6 shows examples of distances D1 and D2. Two subpixels 30G are shown as adjacent subpixels of the same color. Subpixels 30G and 30B are shown as adjacent subpixels of different colors.

[0059] In the example shown in Figure 6(A), the light-emitting region 60G of subpixel 30G has an octagonal shape. The light-emitting region 60B of subpixel 30B also has an octagonal shape. Distance D1 corresponds to the length of the straight line connecting the opposite points of the light-emitting regions 60G of the two subpixels 30G, in this example, the same positions on opposite sides. The same position on opposite sides may be shown as a solid line or a dashed line. Similarly, distance D2 corresponds to the length of the straight line connecting the opposite points of the light-emitting regions 60G of subpixel 30G and the light-emitting regions 60B of subpixel 30B.

[0060] In the example shown in Figure 6(B), the light-emitting region 60G of subpixel 30G has an octagonal shape. The light-emitting region 60B of subpixel 30B has a rectangular shape. The distance D1 is the same as in Figure 6(A) described above. The distance D2 is explained similarly. That is, the distance D2 corresponds to the length of the straight line connecting the opposite points of the light-emitting regions 60G of adjacent subpixels 30G and 30B, in this example, the same positions on opposite sides. The same position on opposite sides may be shown as a solid line or a dashed line.

[0061] Referring again to Figure 4, the shape of each subpixel 30 in the pixel region 2 may be designed in various ways. In one embodiment, when viewed from above (viewed in the negative Z-axis direction), the light-emitting regions 60 of at least some of the subpixels 30 among the multiple subpixels 30 may have the same shape. In the example shown in Figure 4, the light-emitting regions 60 of each subpixel 30 all have the same rectangular shape. Alternatively, in one embodiment, when viewed from above, the light-emitting regions 60 of at least some of the subpixels 30 among the multiple subpixels 30 may have different shapes.

[0062] In one embodiment, the plurality of pixels 3 may include pixels 3 in which the light-emitting regions 60 of adjacent different-colored subpixels 30 have the same shape when viewed from above. Alternatively, the plurality of pixels 3 may include pixels 3 in which the light-emitting regions 60 of adjacent different-colored subpixels 30 have different shapes.

[0063] As mentioned earlier, the light-emitting layer 6 can be formed by mask deposition. In that case, the edges of the light-emitting layers 6 can be stacked on top of each other between adjacent different-colored subpixels 30.

[0064] Specifically, as shown in Figure 5, the end of the light-emitting layer 6G of the subpixel 30G in pixel 3 is referred to as end 6Ga and illustrated. The end of the light-emitting layer 6B of the subpixel 30B in pixel 3 is referred to as end 6Ba and illustrated. The end 6Ga of subpixel 30G and the end 6Ba of subpixel 30B are stacked on top of each other. In this example, the end 6Ba of light-emitting layer 6B is stacked on top of the end 6Ga of light-emitting layer 6G. This is because the light-emitting layers 6G and 6B were formed in this order by mask deposition. Note that if the light-emitting layers 6B and 6G are formed in this order by mask deposition, the end 6Ga will be stacked on top of the end 6Ba.

[0065] In the display device 1 described above, in a configuration in which the light-emitting layer 6 is painted separately for each different-colored subpixel 30, the distance D2 between the light-emitting regions 60 of adjacent different-colored subpixels 30 and the distance D1 between the light-emitting regions 60 of adjacent same-colored subpixels 30 are different from each other. In the above example, distance D2 is greater than distance D1. In other words, distance D1 is smaller than distance D2. This makes it possible to increase the arrangement density (integration density) of subpixels 30 in the pixel region 2 and increase the resolution of the display device 1 compared to, for example, making distance D1 the same size as distance D2.

[0066] This is particularly effective when differentiating the light-emitting layer 6 using mask deposition. This is because mask variations and deposition blurring can occur during the masking process, making it difficult to achieve size shrinkage while taking these factors into account. Furthermore, when increasing the resolution, the aperture ratio becomes even smaller, making it difficult to obtain the desired characteristics. These problems are also addressed by the display device 1 according to this embodiment.

[0067] 2. Examples of Manufacturing Methods Figures 7 to 17 show examples of manufacturing methods for the display device 1. The material of the insulating layer 4 is referred to as insulating layer material 4m and is shown. The material of the via 40 is referred to as via material 40m and is shown. The material of the anode electrode 5 is referred to as anode electrode material 5m and is shown. The material of the insulating part 50 is referred to as insulating part material 50m and is shown. As a prerequisite, elements located below the insulating layer 4, such as a semiconductor substrate on which a drive transistor 33 is provided, a wiring layer, etc., are prepared.

[0068] <Formation of vias> As shown in Figure 7, an insulating layer material 4m is provided. For example, a film deposition technique is used. As shown in Figure 8, a portion of the insulating layer material 4m is processed to obtain a recess 4r having a shape corresponding to the via 40. For example, a lithography technique is used. As shown in Figure 9, a via material 40m is provided to fill the recess 4r of the insulating layer material 4m and to cover the insulating layer material 4m. For example, a film deposition technique is used. As shown in Figure 10, the portion of the via material 40m that is located above the insulating layer material 4m is removed. In this way, the via 40 is formed.

[0069] <Formation of Anode Electrodes> As shown in Figure 11, an anode electrode material 5m is provided so as to cover the insulating layer material 4m and the vias 40. For example, a film deposition technique is used. As shown in Figure 12, the anode electrode material 5m is processed so that each anode electrode 5 is obtained. For example, a lithography technique is used. In this way, the insulating layer 4 and each anode electrode 5 are formed.

[0070] <Formation of insulating portion> As shown in Figure 13, an insulating portion material 50m is provided so as to cover each anode electrode 5 and the insulating layer 4. For example, a film deposition technique is used. As shown in Figure 14, a portion of the insulating portion material 50m is processed so as to obtain an insulating portion 50 located between the anode electrodes 5. For example, a lithography technique is used. Of the upper surface (the surface on the positive Z-axis side) of the anode electrode 5, the surface not covered by the insulating portion 50 defines the light-emitting region 60 of the light-emitting layer 6.

[0071] <Formation of the light-emitting layer> As shown in Figure 15, a deposition mask M is placed so as to expose the portion corresponding to the subpixel 30G and cover the other portions. The material for the light-emitting layer 6G is deposited on the anode electrode 5G, etc., to form the light-emitting layer 6G so as to cover the anode electrode 5G, etc. As shown in Figure 16, a deposition mask M is placed so as to expose the portion corresponding to the subpixel 30B and cover the other portions. The material for the light-emitting layer 6B is deposited on the anode electrode 5B, etc., to form the light-emitting layer 6B so as to cover the anode electrode 5B, etc. Although not shown in the figure, similarly for the portion corresponding to the subpixel 30R, the material for the light-emitting layer 6R is deposited on the anode electrode 5R, etc., to form the light-emitting layer 6R so as to cover the anode electrode 5R, etc.

[0072] <Formation of Cathode Electrode and Protective Layer> As shown in Figure 17, a cathode electrode 7 is formed so as to cover the light-emitting layer 6. A protective layer 8 is formed so as to cover the cathode electrode 7. For example, a film deposition technique is used.

[0073] Although not shown in the figures, a planarization layer 9, a color filter layer 10, a lens layer 11, and a resin layer 12 are also formed on the protective layer 8, and an upper substrate 13 is also provided on the resin layer 12. This results in the pixel region 2 shown in Figures 4 and 5, which were explained earlier.

[0074] 3. The technologies disclosed in modified forms are not limited to the embodiments described above. Several modifications are described below.

[0075] <Low Resolution, Long Lifespan> Referring again to Figure 4, as explained earlier, the pixel region 2 has multiple subpixel groups. Each subpixel group contains multiple (four in this example) same-color subpixels 30 adjacent to each other. In one embodiment, one subpixel group may be used as one subpixel. In this case, the emission of light from the multiple subpixels 30 included in the subpixel group can be controlled individually, so for example, the emission time of each subpixel 30 in the subpixel group can be adjusted (shortened, etc.). The resolution will be lower, but the emission lifetime of the subpixel group will be longer than the emission lifetime of each subpixel 30 included therein. The emission lifetime of each color can be extended.

[0076] <Uniformity of the distance between anode electrodes> In the configuration shown in Figure 5, described earlier, in order to make distance D2 greater than distance D1, the distance between the anode electrodes 5 of adjacent different-colored subpixels 30 is greater than the distance between the anode electrodes 5 of adjacent same-colored subpixels 30. However, these distances may be the same (uniform). This will be explained with reference to Figure 18.

[0077] Figure 18 shows an example of the schematic configuration of the pixel region 2. Similar to Figure 5 described earlier, a schematic cross-section of a part of the pixel region 2 is shown. The anode electrodes 5 of adjacent subpixels of different colors have an extended portion that extends toward the anode electrode 5 of the other subpixel 30.

[0078] Specifically, the extended portion of the anode electrode 5G of subpixel 30G is referred to as the extended portion 5Ga and is shown in the figure. The extended portion 5Ga extends toward the anode electrode 5B of subpixel 30B. The extended portion of the anode electrode 5B of subpixel 30B is referred to as the extended portion 5Ba and is shown in the figure. The extended portion 5Ba extends toward the anode electrode 5G of subpixel 30G. The same applies to the anode electrode 5R of subpixel 30R, although it is not shown in the figure.

[0079] The length of the extension portion of the anode electrode 5 is designed so that the distance between the anode electrodes 5 of adjacent subpixels 30 is the same. Even if the distance between the anode electrodes 5 of adjacent subpixels 30 is the same, the distance D2 between the light-emitting regions 60 of adjacent different-colored subpixels 30 is greater than the distance D1 between the light-emitting regions 60 of adjacent same-colored subpixels 30 because the anode electrode 5 has an extension portion.

[0080] Specifically, in the example shown in Figure 18, the distance between the anode electrode 5G of subpixel 30G and the anode electrode 5B of subpixel 30B is the same as the distance between the anode electrodes 5G of subpixel 30G and the anode electrodes 5B of subpixel 30B. Due to the presence of the extended portions 5Ga and 5Ba, the distance D2 is greater than the distance D1. The same applies to the anode electrode 5R of subpixel 30R, although it is not shown in the figure.

[0081] For example, with the configuration shown in Figure 18 above, the distance D2 becomes greater than the distance D1, so as explained earlier, the display device 1 can be made higher resolution.

[0082] <Examples of Pixel Arrangements> Figures 19 to 21 show examples of pixel arrangements. In the pixel arrangement shown in Figure 19, compared to the pixel arrangement in Figure 4 described earlier, the subpixel groups of the same-colored subpixels 30 (in this example, four square-arranged subpixels 30) are arranged with each subpixel group column shifted alternately by one subpixel row. In this case as well, the multiple pixels 3 are arranged according to a square arrangement. Each pixel 3 contains four subpixels 30 arranged according to a square arrangement. The four subpixels 30 include one subpixel 30R, two subpixels 30G, and one subpixel 30B. However, the arrangement of these four subpixels 30 does not have to be a Bayer arrangement. Note that the cross-section along the V-V line in Figure 19 may be the same as in Figure 5 described earlier.

[0083] In the example shown in Figure 20, multiple pixels 3 are arranged according to a delta array. Each pixel 3 also contains three subpixels 30 arranged according to the delta array. Figure 21 schematically shows a cross-section of the pixel region 2 when viewed along the line XXI-XXI in Figure 20.

[0084] The color assignment of each subpixel 30 within a single pixel 3 is arbitrary. For example, a single pixel 3 may contain only two subpixels 30R and 30G, or only two subpixels 30G and 30B, or only two subpixels 30B and 30R.

[0085] Pixel 3 may include a subpixel 30 (referred to as subpixel 30W) that outputs white (W) light. A single pixel 3 may include subpixels 30R, 30G, 30B, and 30W. The light-emitting layer 6 of subpixel 30W can be formed, for example, by mask deposition of materials for three colors: light-emitting layer 6R, light-emitting layer 6G, and light-emitting layer 6B.

[0086] <Common electrode for cathode electrode> Since distance D2 is greater than distance D1, the space in that area can be effectively utilized. One example of utilization is the installation of a common electrode for the cathode electrode 7. This will be explained with reference to Figures 22 to 25.

[0087] Figures 22 to 25 show examples of the schematic configuration of the pixel region 2. The light-emitting layer 6 of each subpixel 30 is formed by shaping. The light-emitting layer 6 is not present between (at least a portion of) adjacent subpixels of different colors 30.

[0088] The processed edges of the light-emitting layer 6 are located between adjacent, differently colored subpixels 30. As before, since the distance D2 is greater than the distance D1, it becomes easier to secure the area for forming the sidewall protection of the processed edge obtained by the shape processing. In addition, the distance D1 can be shortened compared to mask deposition.

[0089] In the example shown in Figure 22, pixels 3 and subpixels 30 are arranged according to a square arrangement. Figure 23 schematically shows a cross-section along the line XXIII-XIII in Figure 22. In the example shown in Figure 24, pixels 3 and subpixels 30 are arranged according to a delta arrangement. Figure 25 schematically shows a cross-section along the line XXV-XXV in Figure 24.

[0090] Pixel region 2 further includes a common electrode 70. The common electrode 70 is provided between adjacent different-colored subpixels 30. The common electrode 70 is not covered by the light-emitting layer 6. The cathode electrodes 7 of adjacent different-colored subpixels 30 are commonly connected to the common electrode 70.

[0091] As shown in Figures 23 and 25, the cathode electrode 7 includes a first portion 71, a second portion 72, and an insulating layer 73. The first portion 71 is the portion that contacts the light-emitting layer 6. The second portion 72 is the portion (wiring) that contacts and connects the first portion 71 and the common electrode 70. The second portion 72 may contact any part of the first portion 71. Except for the portion that contacts the first portion 71 and the common electrode 70, the second portion 72 is separated from the first portion 71 via the insulating layer 73. The second portion 72 has recesses 72c at positions corresponding to the common electrode 70 and the first portion 71. The lower surface of the recess 72c corresponding to the common electrode 70 contacts the upper surface of the common electrode 70. The lower surface of the recess 72c corresponding to the first portion 71 contacts the upper surface of the first portion 71.

[0092] In this example, vias 40 are connected to the common electrode 70, but vias 40 do not necessarily have to be connected to the common electrode 70. In that case, the common electrode 70 will continue to pass through the layer of the anode electrode 5 and extend, for example, to the outside of the pixel region 2.

[0093] For example, as described above, the space in the distance D2 portion can be effectively utilized. Furthermore, compared to the case where the common electrode 70 is provided on the outer periphery of the pixel area 2, the distance from the cathode electrode 7 to the common electrode 70 can be shortened, increasing the likelihood of reducing the connection resistance between the cathode electrode 7 and the common electrode 70. This can contribute to improving the display performance of the display device 1.

[0094] <Example of the relationship between distances D1 and D2> In the above embodiment, the case where distance D2 is greater than distance D1 was used as an example. Conversely, distance D1 may be greater than distance D2. This configuration also allows for a higher density of subpixels 30 in the pixel region 2 and a higher resolution display device 1 compared to, for example, the case where distance D2 is the same size as distance D1.

[0095] 4. Other Modifications 4.1 Modification 1 As another modification of the embodiments of the present disclosure, a modification concerning the relationship between the normal vector LN passing through the center of the light-emitting unit (corresponding to the sub-pixel 30 in the previous embodiment), the normal vector LN' passing through the center of the lens member (corresponding to the lenses 11R, 11G, and 11B in the previous embodiment), and the normal vector LN" passing through the center of the wavelength selection unit (corresponding to the color filters 10R, 10G, and 10B in the previous embodiment) will be described with reference to Figures 26A to 26G. Figures 26A to 26G are conceptual diagrams for explaining the relationship between the normal vector LN passing through the center of the light-emitting unit, the normal vector LN' passing through the center of the lens member, and the normal vector LN" passing through the center of the wavelength selection unit.

[0096] In embodiments of this disclosure, the size of the wavelength selection area may be appropriately changed in response to the light emitted by the subpixel 30. Furthermore, if a light-absorbing layer (black matrix layer) is provided between the wavelength selection area of ​​an adjacent subpixel 30, the size of the light-absorbing layer (black matrix layer) may be appropriately changed in response to the light emitted by the subpixel 30. In addition, the size of the wavelength selection area may be determined by the distance (offset amount) d between the normal vector passing through the center of the subpixel 30 and the normal vector passing through the center of the wavelength selection area. ０ Depending on the circumstances, it may be changed as appropriate. The planar shape of the wavelength selection section may be the same as, similar to, or different from the planar shape of the lens element.

[0097] For example, as shown in Figure 26A, the normal vector LN passing through the center of the light-emitting part, the normal vector LN'' passing through the center of the wavelength selection part, and the normal vector LN' passing through the center of the lens member may be made to coincide. In other words, the distance (offset amount) D between the normal vector passing through the center of the light-emitting part and the normal vector passing through the center of the lens member. ０and the distance (offset amount) d between the normal line passing through the center of the light-emitting part and the normal line passing through the center of the wavelength selection part ０ may be equal to, and may be, zero (0).

[0098] Also, for example, as shown in FIG. 26B, the normal line LN passing through the center of the light-emitting part and the normal line LN” passing through the center of the wavelength selection part coincide with each other, but the normal line LN passing through the center of the light-emitting part and the normal line LN” passing through the center of the wavelength selection part and the normal line LN’ passing through the center of the lens member do not have to coincide with each other. In other words, D ０ ≠d ０ may be 0.

[0099] Also, for example, as shown in FIG. 26C, the normal line LN passing through the center of the light-emitting part, the normal line LN” passing through the center of the wavelength selection part, and the normal line LN’ passing through the center of the lens member do not coincide with each other, and the normal line LN” passing through the center of the wavelength selection part and the normal line LN’ passing through the center of the lens member may coincide with each other. In other words, D ０ =d ０ may be >0.

[0100] Also, for example, as shown in FIG. 26D, the normal line LN passing through the center of the light-emitting part, the normal line LN” passing through the center of the wavelength selection part, and the normal line LN’ passing through the center of the lens member do not coincide with each other, and the normal line LN’ passing through the center of the lens member may be in a form that does not coincide with the normal line LN passing through the center of the light-emitting part and the normal line LN” passing through the center of the wavelength selection part. Here, it is preferable that the center of the wavelength selection part (indicated by a black circle in FIG. 26D) is located on the straight line LL connecting the center of the surface of the light-emitting part and the center of the lens member (indicated by a black circle in FIG. 26D). Specifically, the distance from the center of the surface of the light-emitting part in the thickness direction to the center of the wavelength selection part is LL １ and the distance from the center of the wavelength selection part in the thickness direction to the center of the lens member is LL ２ When this is the case, D ０ >d ０ >0, and in consideration of manufacturing variations, d ０ : D ０ =LL １ : (LL １ +LL ２ ) is preferably satisfied.

[0101] Furthermore, the stacking relationship between the wavelength selection unit and the lens member may be reversed. In such a case, for example, as shown in Figure 26E, the normal vector LN passing through the center of the light-emitting unit, the normal vector LN'' passing through the center of the wavelength selection unit, and the normal vector LN' passing through the center of the lens member may be made to coincide. In other words, D ０ = d ０ It may also be equal to 0.

[0102] Furthermore, for example, as shown in Figure 26F, the normal vector LN passing through the center of the light-emitting part, the normal vector LN'' passing through the center of the wavelength-selecting part, and the normal vector LN' passing through the center of the lens member do not coincide, but the normal vector LN'' passing through the center of the wavelength-selecting part and the normal vector LN' passing through the center of the lens member may coincide. In other words, D ０ = d ０ It can also be 0.

[0103] Furthermore, as shown in the conceptual diagram Figure 26G, the normal vector LN passing through the center of the light-emitting part, the normal vector LN'' passing through the center of the wavelength-selecting part, and the normal vector LN' passing through the center of the lens member do not coincide, and the normal vector LN' passing through the center of the lens member does not coincide with the normal vector LN passing through the center of the light-emitting part and the normal vector LN'' passing through the center of the wavelength-selecting part. Here, it is preferable that the center of the lens member is located on the straight line LL connecting the center of the surface of the light-emitting part and the center of the wavelength-selecting part. Specifically, the distance from the center of the lens member in the thickness direction to the center of the wavelength-selecting part is LL. １ The distance from the center of the light-emitting part in the thickness direction to the center of the lens material is LL ２ When that happens, d ０ >D ０ > 0, and considering manufacturing variations, D ０ :d ０ =LL ２ : (LL １ +LL ２ It is preferable that the following conditions be met.

[0104] 4.2 Modification 2 The subpixel 1100 (corresponding to the subpixel 30 in the previous embodiment) used in the display device 1 according to the embodiment of the present disclosure described above can be configured to have a resonator structure (microcavity structure) that resonates the light generated in the light-emitting layer. The above resonator structure will be described below with reference to Figures 27 to 33. Figure 27 is a schematic cross-sectional view illustrating a first example of the resonator structure, Figure 28 is a schematic cross-sectional view illustrating a second example of the resonator structure, and Figure 29 is a schematic cross-sectional view illustrating a third example of the resonator structure. Furthermore, Figure 30 is a schematic cross-sectional view illustrating a fourth example of the resonator structure, and Figure 31 is a schematic cross-sectional view illustrating a fifth example of the resonator structure. Furthermore, Figure 32 is a schematic cross-sectional view illustrating a sixth example of the resonator structure, and Figure 33 is a schematic cross-sectional view illustrating a seventh example of the resonator structure.

[0105] (Resonator structure: First example) Figure 27 is a schematic cross-sectional view illustrating the first example of a resonator structure. In the first example, the first electrode (corresponding to the anode electrode 5 in the previous embodiment) 1202 is formed with a common film thickness in each subpixel 1100. The same applies to the second electrode (corresponding to the cathode electrode 7 in the previous embodiment) 1206.

[0106] As shown in Figure 27, a reflector 1401 is positioned below the first electrode 1202 of the subpixel 1100, with an optical adjustment layer 1402 in between. A resonator structure is formed between the reflector 1401 and the second electrode 1206, causing the light generated by the organic layer (corresponding to the light-emitting layer 6 in the previous embodiment) 1204 to resonate.

[0107] The reflector 1401 is formed with a common film thickness for each subpixel 1100. The film thickness of the optical adjustment layer 1402 differs depending on the color that the subpixel 1100 is to display. By having optical adjustment layers 1402R, 1402G, and 1402B with different film thicknesses, it is possible to set the optical distance that produces the optimal resonance for the wavelength of light corresponding to the color to be displayed.

[0108] In the example shown in Figure 27, the upper surfaces of the reflectors 1401 for subpixels 1100R, 1100G, and 1100B are aligned. As described above, the thickness of the optical adjustment layer 1402 differs depending on the color that the subpixel 1100 should display, so the position of the upper surface of the second electrode 1206 differs depending on the type of subpixel 1100R, 1100G, and 1100B.

[0109] The reflector 1401 can be formed using, for example, a metal such as aluminum (Al), silver (Ag), or copper (Cu), or an alloy mainly composed of these metals.

[0110] The optical adjustment layer 1402 can be constructed using inorganic insulating materials such as silicon nitride (SiNx), silicon oxide (SiOx), or silicon oxynitride (SiOxNy), or organic resin materials such as acrylic resin or polyimide resin. The optical adjustment layer 1402 may be a single layer or a laminated film of multiple materials. Furthermore, the number of layers may vary depending on the type of subpixel 1100.

[0111] The first electrode 1202 can be formed using, for example, a transparent conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), or zinc oxide (ZnO).

[0112] The second electrode 1206 preferably functions as a semi-transparent reflective film. The second electrode 1206 can be formed using magnesium (Mg), silver (Ag), or a magnesium-silver alloy (MgAg) mainly composed of these, or an alloy containing alkali metals or alkaline earth metals.

[0113] (Resonator structure: Second example) Figure 28 is a schematic cross-sectional view illustrating a second example of the resonator structure. In this second example as well, the first electrode 1202 and the second electrode 1206 are formed with a common film thickness in each subpixel 1100.

[0114] In the second example as well, a reflector 1401 is placed beneath the first electrode 1202 of the subpixel 1100, with an optical adjustment layer 1402 in between. A resonator structure is formed between the reflector 1401 and the second electrode 1206 to resonate the light generated by the organic layer 1204. Similar to the first example, the reflector 1401 is formed with a common film thickness for each subpixel 1100, while the film thickness of the optical adjustment layer 1402 differs according to the color that the subpixel 1100 should display.

[0115] In the first example shown in Figure 27, the upper surfaces of the reflectors 1401 for subpixels 1100R, 1100G, and 1100B were aligned, while the position of the upper surface of the second electrode 1206 differed depending on the type of subpixel 1100R, 1100G, and 1100B.

[0116] In contrast, in the second example shown in Figure 28, the upper surface of the second electrode 1206 is arranged to align with the subpixels 1100R, 1100G, and 1100B. In order to align the upper surfaces of the second electrode 1206, the upper surface of the reflector 1401 is arranged differently for the subpixels 1100R, 1100G, and 1100B, depending on the type of subpixel. As a result, the lower surface of the reflector 1401 has a stepped shape depending on the type of subpixel 1100R, 1100G, and 1100B.

[0117] The materials and other components constituting the reflector 1401, the optical adjustment layer 1402, the first electrode 1202, and the second electrode 1206 are the same as those described in the first example, so their explanation will be omitted.

[0118] (Resonator structure: Third example) Figure 29 is a schematic cross-sectional view illustrating the third example of the resonator structure. In the third example as well, the first electrode 1202 and the second electrode 1206 are formed with a common film thickness in each subpixel 1100.

[0119] In the third example, the reflector 1401 is positioned below the first electrode 1202 of the subpixel 1100, with the optical adjustment layer 1402 in between. A resonator structure is formed between the reflector 1401 and the second electrode 1206 to resonate the light generated by the organic layer 1204. Similar to the first and second examples, the thickness of the optical adjustment layer 1402 varies depending on the color that the subpixel 1100 should display. And, similar to the second example, the upper surface of the second electrode 1206 is positioned so that it aligns with the subpixels 1100R, 1100G, and 1100B.

[0120] In the second example shown in Figure 28, the lower surface of the reflector 1401 had a stepped shape corresponding to the type of sub-pixel 1100R, 1100G, and 1100B in order to align the upper surface of the second electrode 1206.

[0121] In contrast, in the third example shown in Figure 29, the film thickness of the reflector 1401 is set to differ depending on the type of sub-pixel 1100R, 1100G, and 1100B. More specifically, the film thickness is set so that the lower surfaces of the reflectors 1401R, 1401G, and 1401B are aligned.

[0122] The materials and other components constituting the reflector 1401, the optical adjustment layer 1402, the first electrode 1202, and the second electrode 1206 are the same as those described in the first example, so their explanation will be omitted.

[0123] (Resonator structure: 4th example) Figure 30 is a schematic cross-sectional view illustrating the 4th example of a resonator structure.

[0124] In the first example shown in Figure 27, the first electrode 1202 and the second electrode 1206 of the subpixel 1100 are formed with a common film thickness. A reflector 1401 is placed below the first electrode 1202 of the subpixel 1100, with an optical adjustment layer 1402 in between.

[0125] In contrast, in the fourth example shown in Figure 30, the optical adjustment layer 1402 is omitted, and the film thickness of the first electrode 1202 is set to differ depending on the type of subpixel 1100R, 1100G, and 1100B.

[0126] The reflector 1401 is formed with a common film thickness for each subpixel 1100. The film thickness of the first electrode 1202 differs depending on the color that the subpixel 1100 is to display. By having the first electrodes 1202R, 1202G, and 1202B have different film thicknesses, it is possible to set the optical distance that produces the optimal resonance for the wavelength of light corresponding to the color to be displayed.

[0127] The materials and other components constituting the reflector 1401, the first electrode 1202, and the second electrode 1206 are the same as those described in the first example, so their explanation will be omitted.

[0128] (Resonator structure: Fifth example) Figure 31 is a schematic cross-sectional view illustrating the fifth example of a resonator structure.

[0129] In the first example shown in Figure 27, the first electrode 1202 and the second electrode 1206 are formed with a common film thickness in each subpixel 1100. A reflector 1401 is placed below the first electrode 1202 of the subpixel 1100, with an optical adjustment layer 1402 in between.

[0130] In contrast, in the fifth example shown in Figure 31, the optical adjustment layer 1402 was omitted, and instead, an oxide film 1404 was formed on the surface of the reflector 1401. The thickness of the oxide film 1404 was set to differ depending on the type of subpixel 1100R, 1100G, and 1100B.

[0131] The thickness of the oxide film 1404 varies depending on the color that the subpixel 1100 is to display. By having oxide films 1404R, 1404G, and 1404B with different thicknesses, it is possible to set the optical distance that produces the optimal resonance for the wavelength of light corresponding to the color to be displayed.

[0132] The oxide film 1404 is a film obtained by oxidizing the surface of the reflector 1401, and is composed of, for example, aluminum oxide, tantalum oxide, titanium oxide, magnesium oxide, zirconium oxide, etc. The oxide film 1404 functions as an insulating film for adjusting the optical path length (optical distance) between the reflector 1401 and the second electrode 1206.

[0133] The oxide film 1404, which has a different thickness depending on the type of subpixel 1100R, 1100G, and 1100B, can be formed, for example, as follows.

[0134] First, the container is filled with electrolyte, and the substrate on which the reflector 1401 is formed is immersed in the electrolyte. Then, electrodes are positioned opposite the reflector 1401.

[0135] Then, a positive voltage is applied to the reflector 1401 with the electrode as the reference, and the reflector 1401 is anodized. The thickness of the oxide film formed by anodization is proportional to the voltage value applied to the electrode. Therefore, anodization is performed on each of the reflectors 1401R, 1401G, and 1401B with a voltage corresponding to the type of sub-pixel 1100R, 1100G, and 1100B applied. This makes it possible to form oxide films 1404 of different thicknesses all at once.

[0136] The materials and other components constituting the reflector 1401, the first electrode 1202, and the second electrode 1206 are the same as those described in the first example, so their explanation will be omitted.

[0137] (Resonator Structure: Sixth Example) Figure 32 is a schematic cross-sectional view illustrating the sixth example of a resonator structure. In the sixth example, the subpixel 1100 is constructed by stacking a first electrode 1202, an organic layer 1204, and a second electrode 1206. However, in the sixth example, the first electrode 1202 is formed to serve both as an electrode and a reflector. The first electrode (and reflector) 1202 is made of a material having optical constants selected according to the type of subpixel 1100R, 1100G, and 1100B. By different phase shifts caused by the first electrode (and reflector) 1202, it is possible to set an optical distance that produces optimal resonance for the wavelength of light corresponding to the color to be displayed.

[0138] The first electrode (and reflector) 1202 can be made from a single metal such as aluminum (Al), silver (Ag), gold (Au), or copper (Cu), or from an alloy mainly composed of these metals. For example, the first electrode (and reflector) 1202R of the subpixel 1100R can be made of copper (Cu), and the first electrode (and reflector) 1202G of the subpixel 1100G and the first electrode (and reflector) 1202B of the subpixel 1100B can be made of aluminum.

[0139] The materials and other components constituting the second electrode 1206 are the same as those described in the first example, so their explanation will be omitted.

[0140] (Resonator Structure: Seventh Example) Figure 33 is a schematic cross-sectional view illustrating the seventh example of the resonator structure. The seventh example basically applies the sixth example to sub-pixels 1100R and 1100G, and the first example to sub-pixel 1100B. In this configuration as well, it is possible to set the optical distance that produces optimal resonance for the wavelength of light corresponding to the color to be displayed.

[0141] The first electrodes (which also serve as reflectors) 1202R and 1202G used in the sub-pixels 1100R and 1100G can be made from elemental metals such as aluminum (Al), silver (Ag), gold (Au), and copper (Cu), or alloys in which these metals are the main components.

[0142] The materials and other components constituting the reflector 1401B, optical adjustment layer 1402B, and first electrode 1202B used in the subpixel 1100B are the same as those described in the first example, so their explanation will be omitted.

[0143] 5. Examples of Application For example, the technology relating to this disclosure may be applied to the display units of various electronic devices. Therefore, examples of electronic devices to which this technology can be applied will be described below.

[0144] (Specific Example 1) Figure 34A is a front view showing an example of the external appearance of the digital still camera 500, and Figure 34B is a rear view showing an example of the external appearance of the digital still camera 500. This digital still camera 500 is a single-lens reflex type with interchangeable lenses, and has an interchangeable shooting lens unit (interchangeable lens) 512 located approximately in the center of the front of the camera body 511, and a grip portion 513 for the photographer to hold on the left side of the front.

[0145] A monitor 514 is provided on the back of the camera body 511, slightly to the left of the center. An electronic viewfinder (eyepiece) 515 is provided above the monitor 514. The photographer can determine the composition by looking through the electronic viewfinder 515 and visually confirming the light image of the subject guided by the shooting lens unit 512. The display device 1 according to the embodiment of this disclosure can be used as the monitor 514 and the electronic viewfinder 515.

[0146] (Specific Example 2) Figure 35 is an external view of a head-mounted display 600. The head-mounted display 600 has, for example, an eyeglass-shaped display unit 611 and ear hooks 612 on both sides for attachment to the user's head. In this head-mounted display 600, the display device 1 according to the embodiment of this disclosure can be used as the display unit 611.

[0147] (Specific Example 3) Figure 36 is an external view of the see-through head-mounted display 634. The see-through head-mounted display 634 consists of a main body 632, an arm 633, and a lens barrel 631.

[0148] The main body 632 is connected to the arm 633 and the eyeglasses 630. Specifically, the long end of the main body 632 is connected to the arm 633, and one side of the main body 632 is connected to the eyeglasses 630 via a connecting member. The main body 632 may also be directly attached to the head of a person.

[0149] The main body 632 houses a control board for controlling the operation of the see-through head-mounted display 634 and a display unit. The arm 633 connects the main body 632 to the lens barrel 631 and supports the lens barrel 631. Specifically, the arm 633 is connected to the end of the main body 632 and the end of the lens barrel 631, respectively, and fixes the lens barrel 631 in place. The arm 633 also houses signal lines for communicating image-related data provided from the main body 632 to the lens barrel 631.

[0150] The lens barrel 631 projects image light, provided from the main body 632 via the arm 633, through the eyepiece lens towards the eyes of the user wearing the see-through head-mounted display 634. In this see-through head-mounted display 634, the display device 1 according to the embodiment of this disclosure can be used in the display section of the main body 632.

[0151] (Specific Example 4) Figure 37 shows an example of the appearance of a television device 710. This television device 710 has, for example, a video display screen section 711 including a front panel 712 and a filter glass 713, and this video display screen section 711 is configured with a display device 1 according to the embodiment of this disclosure.

[0152] (Specific Example 5) Figure 38 shows an example of the appearance of a smartphone 800. The smartphone 800 has a display unit 802 that displays various information, and an operation unit consisting of buttons, etc. that accept user input. The display unit 802 may be the display device 1 according to this embodiment.

[0153] (Specific Example 6) Figures 39A and 39B show the internal configuration of an automobile having a display device 1 according to the embodiment of this disclosure as a display device. More specifically, Figure 39A shows the interior of the automobile from the rear to the front, and Figure 39B shows the interior of the automobile from the diagonally rear to the diagonally front.

[0154] The automobile shown in Figures 39A and 39B includes a center display 911, a console display 912, a head-up display 913, a digital rear mirror 914, a steering wheel display 915, and a rear entertainment display 916. Some or all of these displays can be fitted with the display device 1 according to the embodiment of this disclosure.

[0155] The center display 911 is positioned on the center console 907, facing the driver's seat 901 and the passenger seat 902. Figures 39A and 39B show an example of a horizontally elongated center display 911 extending from the driver's seat 901 to the passenger seat 902, but the screen size and placement of the center display 911 are arbitrary. The center display 911 can display information detected by various sensors (not shown). As a specific example, the center display 911 can display images captured by an image sensor, distance images to obstacles in front of or to the side of the vehicle measured by a ToF (Time of Flight) sensor, and the body temperature of passengers detected by an infrared sensor. The center display 911 can be used to display, for example, at least one of safety-related information, operation-related information, life logs, health-related information, authentication / identification-related information, and entertainment-related information.

[0156] Safety-related information includes information such as drowsiness detection, distraction detection, detection of mischief by a passenger, seatbelt fastening status, and detection of an unattended occupant. This information is detected, for example, by a sensor (not shown) placed on top of the back of the center display 911. Operation-related information is detected by sensing occupant gestures using sensors. The detected gestures may include the operation of various equipment in the vehicle. For example, the sensors detect the operation of air conditioning equipment, navigation systems, AV (Audio / Visual) systems, lighting systems, etc. Life logs include the life logs of all occupants. For example, life logs include records of each occupant's actions while riding in the vehicle. By acquiring and saving life logs, it is possible to confirm the state of the occupants at the time of an accident. Health-related information is detected by sensing the occupant's body temperature using a temperature sensor and inferring the occupant's health status based on the detected body temperature. Alternatively, the occupant's face may be captured using an image sensor, and the occupant's health status may be inferred from the facial expression captured. Furthermore, the system may engage in automated voice conversations with the occupants and infer their health status based on their responses. Authentication / identification-related information includes keyless entry functions that use sensors for facial recognition, and functions that automatically adjust seat height and position based on facial recognition. Entertainment-related information includes functions that use sensors to detect information on how the occupants operate the AV equipment, and functions that use sensors to recognize the occupants' faces and provide content suitable for the occupants through the AV equipment.

[0157] The console display 912 can be used, for example, to display life log information. The console display 912 is located near the shift lever 908 on the center console 907 between the driver's seat 901 and the passenger seat 902. The console display 912 can also display information detected by various sensors (not shown). In addition, the console display 912 may display an image of the area around the vehicle captured by an image sensor, or it may display an image showing the distance to obstacles around the vehicle.

[0158] The head-up display 913 is virtually displayed behind the windshield 904 in front of the driver's seat 901. The head-up display 913 can be used to display at least one of the following: safety-related information, operation-related information, life logs, health-related information, authentication / identification-related information, and entertainment-related information. Because the head-up display 913 is often virtually positioned in front of the driver's seat 901, it is suitable for displaying information directly related to the operation of the vehicle, such as the vehicle's speed and fuel (battery) level.

[0159] The digital rearview mirror 914 can not only display what is behind the vehicle, but also what is happening to the passengers in the rear seat. By placing a sensor (not shown) on top of the back of the digital rearview mirror 914, it can be used, for example, to display life log information.

[0160] The steering wheel display 915 is positioned near the center of the steering wheel 906 of the automobile. The steering wheel display 915 can be used to display, for example, at least one of safety-related information, operation-related information, life log, health-related information, authentication / identification-related information, and entertainment-related information. In particular, because the steering wheel display 915 is located near the driver's hands, it is suitable for displaying life log information such as the driver's body temperature, or information related to the operation of AV equipment, air conditioning equipment, etc.

[0161] The rear entertainment display 916 is mounted on the back of the driver's seat 901 and the passenger seat 902, and is intended for viewing by rear-seat passengers. The rear entertainment display 916 can be used to display at least one of the following: safety-related information, operation-related information, life logs, health-related information, authentication / identification-related information, and entertainment-related information. In particular, because the rear entertainment display 916 is in front of the rear-seat passengers, it displays information relevant to the rear-seat passengers. For example, it may display information related to the operation of AV equipment or air conditioning equipment, or it may display the results of measurements of the rear-seat passengers' body temperature etc., taken by a temperature sensor (not shown).

[0162] 6. Summary The technology described above can be identified, for example, as follows: One of the disclosed technologies is a display device 1. As described with reference to Figures 1 to 5 and Figures 18 to 25, the display device 1 comprises a plurality of subpixels 30 (e.g., subpixel 30R, subpixel 30G, subpixel 30B) arranged in a two-dimensional array, each outputting light of a corresponding color. Each of the plurality of subpixels 30 includes a light-emitting region 60 that emits light of the color of the subpixel 30. The distance D2 between the light-emitting regions 60 of adjacent subpixels 30 of different colors and the distance D1 between the light-emitting regions 60 of adjacent subpixels 30 of the same color are different from each other. For example, distance D2 may be greater than distance D1.

[0163] In the above-described display device 1, in a configuration in which the light-emitting layer 6 is painted separately for each different-colored subpixel 30, the distance D2 between the light-emitting regions 60 of adjacent different-colored subpixels 30 and the distance D1 between the light-emitting regions 60 of adjacent same-colored subpixels 30 are different from each other. For example, distance D2 is greater than distance D1. In other words, distance D1 is smaller than distance D2. This allows for a higher density of subpixels 30 in the pixel region 2 and a higher resolution display device 1 compared to, for example, the case where distance D1 is the same size as distance D2. Conversely, distance D1 may be greater than distance D2. This configuration also allows for a higher density of subpixels 30 in the pixel region 2 and a higher resolution display device 1 compared to, for example, the case where distance D2 is the same size as distance D1.

[0164] As explained with reference to Figures 3, 5, 18, 21, 23, and 25, each of the multiple subpixels 30 includes an anode electrode 5, a cathode electrode 7, and a light-emitting layer 6 provided between the anode electrode 5 and the cathode electrode 7, which can emit light of the color of the subpixel 30. The light-emitting region 60 may be a region of the light-emitting layer 6 that is in contact with both the anode electrode 5 and the cathode electrode 7. Furthermore, the light-emitting layers 6 of adjacent subpixels 30 of the same color may be integrally formed. For example, the arrangement density of subpixels 30 including such light-emitting elements 31 (LEDs) can be increased to make the display device 1 higher resolution.

[0165] As explained with reference to Figures 3, 5, 15, 16, 18, and 21, the light-emitting layer 6 is formed by mask deposition of the material of the light-emitting layer 6, and the edges of the light-emitting layers 6 of adjacent different-colored subpixels 30 (for example, the edge 6Ga of the light-emitting layer 6G of subpixel 30G and the edge 6Ba of the light-emitting layer 6B of subpixel 30B) may be stacked on top of each other. For example, in a configuration in which the light-emitting layer 6 is coated using mask deposition in this way, the distance D2 can be increased to deal with mask variations, deposition blurring, etc., and the distance D1 can be decreased to increase the arrangement density of subpixels 30.

[0166] As explained with reference to Figures 3, 23, and 25, the light-emitting layer 6 may be formed by shaping the material of the light-emitting layer 6. Since the distance D2 is greater than the distance D1, it becomes easier to secure an area for forming the sidewall protection of the processed edge obtained by shaping. Also, the distance D1 can be shortened compared to mask deposition.

[0167] As explained with reference to Figures 5, 21, 23, and 25, the distance between the anode electrodes 5 of adjacent different-colored subpixels 30 may be greater than the distance between the anode electrodes 5 of adjacent same-colored subpixels 30. For example, in this way, distance D2 can be made greater than distance D1. Alternatively, as explained with reference to Figure 18, the distance between the anode electrodes 5 of adjacent different-colored subpixels 30 may be the same as the distance between the anode electrodes 5 of adjacent same-colored subpixels 30. Even with such a configuration, it is possible to make distance D2 greater than distance D1.

[0168] As explained with reference to Figures 4, 19, 20, 22, and 24, when viewed from above, the light-emitting regions 60 of at least some of the subpixels 30 may have the same shape or different shapes. Various planar layout designs for the subpixels 30 are possible.

[0169] As explained with reference to Figures 1, 3 to 5, and 18 to 25, the display device 1 comprises a plurality of pixels 3 arranged in a two-dimensional array, and each of the plurality of pixels 3 may include adjacent subpixels 30 of different colors. For example, in this way, a pixel 3 containing two or more subpixels 30 that output different colors can be obtained.

[0170] As explained with reference to Figures 4, 19, 20, 22, and 24, a plurality of pixels 3 may include pixels 3 in which the light-emitting regions 60 of adjacent different-colored subpixels 30 have the same shape when viewed from a planar perspective, or pixels 3 in which they have different shapes. Various planar layout designs are possible for each pixel 3 and its subpixels 30.

[0171] As explained with reference to Figures 4, 19, and 22, the plurality of pixels 3 are arranged according to a square array, and each of the plurality of pixels 3 may include a subpixel 30 arranged according to a square array. As explained with reference to Figure 19, the display device 1 includes a plurality of subpixel groups, each of the plurality of subpixel groups includes adjacent subpixels of the same color (e.g., four subpixels 30G, four subpixels 30B, etc.), and the plurality of subpixel groups may be arranged with an alternating shift of one subpixel row for each subpixel group column. Alternatively, as explained with reference to Figures 20 and 24, the plurality of pixels 3 are arranged according to a delta array, and each of the plurality of pixels 3 may include a subpixel 30 arranged according to a delta array. Various pixel array designs are possible, including, for example, such pixel arrays.

[0172] As explained with reference to Figure 2, each of the multiple subpixels 30 may include an element for driving light emission (for example, a drive transistor 33). As explained with reference to Figure 3, each of the multiple subpixels 30 may include a color filter layer 10 that allows light of the corresponding color from the light-emitting region 60 to pass through, and a lens layer 11 provided on the opposite side of the color filter layer 10 from the light-emitting region 60. For example, the arrangement density of the subpixels 30 can be increased in this way, and the display device 1 can be made higher resolution.

[0173] As explained with reference to Figures 22 to 25, the display device 1 includes a common electrode 70 provided between adjacent different-colored subpixels 30, and the cathode electrodes 7 of adjacent different-colored subpixels 30 may be connected in common to the common electrode 70. In this way, for example, the space obtained when the distance D2 is greater than the distance D1 can be effectively utilized.

[0174] The method for manufacturing the display device 1, as described with reference to Figures 1 to 5 and Figures 7 to 25, is also one of the disclosed technologies. The method for manufacturing the display device 1 includes forming an anode electrode 5 (Figures 11 and 12), forming a light-emitting layer 6 so as to cover the anode electrode 5 (for example, by mask deposition of the material for the light-emitting layer 6 as shown in Figures 15 and 16), and forming a cathode electrode 7 so as to cover the light-emitting layer 6 (Figure 17). The display device 1 comprises a plurality of subpixels 30 arranged in a two-dimensional array, each outputting light of a corresponding color. Each of the plurality of subpixels 30 includes a light-emitting region 60 in contact with both the anode electrode 5 and the cathode electrode 7 in the light-emitting layer 6. The distance D2 between the light-emitting regions 60 of adjacent subpixels 30 of different colors is greater than the distance D1 between the light-emitting regions 60 of adjacent subpixels 30 of the same color. As described above, the display device 1 can also be made high-resolution by such a method for manufacturing the display device 1.

[0175] The effects described in this disclosure are merely illustrative and not limited to those disclosed. Other effects may also occur.

[0176] While embodiments of this disclosure have been described above, the technical scope of this disclosure is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of this disclosure. Furthermore, components from different embodiments and modifications may be combined as appropriate.

[0177] Furthermore, this technology can also take the following configurations: (1) A display device comprising a plurality of subpixels arranged in a two-dimensional array, each outputting light of a corresponding color, each of the plurality of subpixels including a light-emitting region that emits light of the subpixel's color, and the distance between the light-emitting regions of adjacent opposite-color subpixels and the distance between the light-emitting regions of adjacent same-color subpixels are different from each other. (2) The display device according to (1), wherein the distance between the light-emitting regions of adjacent opposite-color subpixels is greater than the distance between the light-emitting regions of adjacent same-color subpixels. (3) The display device according to (1), wherein each of the plurality of subpixels includes an anode electrode, a cathode electrode, and a light-emitting layer provided between the anode electrode and the cathode electrode that can emit light of the subpixel's color, and the light-emitting region is a region of the light-emitting layer that is in contact with both the anode electrode and the cathode electrode. (4) The display device according to (3), wherein the light-emitting layers of adjacent same-color subpixels are integrally formed. (5) The light-emitting layer is formed by mask deposition of the material of the light-emitting layer, and the edges of the light-emitting layers of adjacent different-colored subpixels are stacked on top of each other between adjacent different-colored subpixels, as in (3) or (4). (6) The light-emitting layer is formed by shaping the material of the light-emitting layer, as in (3) or (4). (7) The distance between the anode electrodes of adjacent different-colored subpixels is greater than the distance between the anode electrodes of adjacent same-colored subpixels, as in any of (1) to (6). (8) The distance between the anode electrodes of adjacent different-colored subpixels is the same as the distance between the anode electrodes of adjacent same-colored subpixels, as in any of (1) to (6). (9) When viewed from above, the light-emitting regions of at least some of the subpixels among the plurality of subpixels have the same shape, as in any of (1) to (8).(10) A display device according to any one of (1) to (9), wherein when viewed from above, the light-emitting regions of at least some of the subpixels among the plurality of subpixels have different shapes from each other. (11) A display device according to any one of (1) to (10), comprising a plurality of pixels arranged in a two-dimensional array, wherein each of the plurality of pixels includes the adjacent different-colored subpixels. (12) A display device according to (11), wherein the plurality of pixels include pixels in which the light-emitting regions of adjacent different-colored subpixels have the same shape when viewed from above. (13) A display device according to (11) or (12), wherein the plurality of pixels include pixels in which the light-emitting regions of adjacent different-colored subpixels have different shapes when viewed from above. (14) A display device according to any one of (11) to (13), wherein the plurality of pixels are arranged according to a square arrangement, and each of the plurality of pixels includes the subpixels arranged according to a square arrangement. (15) A display device according to any one of (11) to (14), comprising a plurality of subpixel groups, each of the plurality of subpixel groups comprising adjacent same-color subpixels, and the plurality of subpixel groups being arranged alternately by one subpixel row for each subpixel group column. (16) A display device according to any one of (11) to (13), wherein the plurality of pixels are arranged according to a delta array, and each of the plurality of pixels comprises the subpixels arranged according to the delta array. (17) A display device according to any one of (1) to (16), wherein each of the plurality of subpixels comprises an element for driving light emission. (18) A display device according to any one of (1) to (17), wherein each of the plurality of subpixels comprises a color filter layer that allows light of the corresponding color from the light-emitting region to pass through, and a lens layer provided on the opposite side of the color filter layer from the light-emitting region.(19) The display device according to any one of (1) to (18), wherein each of the plurality of subpixels includes an anode electrode, a cathode electrode, and a light-emitting layer provided between the anode electrode and the cathode electrode and capable of emitting light of the color of the subpixel, the display device comprises a common electrode provided between adjacent subpixels of different colors, and the cathode electrodes of adjacent subpixels of different colors are commonly connected to the common electrode. (20) A method for manufacturing a display device, comprising: forming an anode electrode, forming a light-emitting layer so as to cover the anode electrode, and forming a cathode electrode so as to cover the light-emitting layer, wherein the display device comprises a plurality of subpixels arranged in a two-dimensional array, each outputting light of a corresponding color, each of the plurality of subpixels includes a light-emitting region in the light-emitting layer that is in contact with both the anode electrode and the cathode electrode, and the distance between the light-emitting regions of adjacent subpixels of different colors and the distance between the light-emitting regions of adjacent subpixels of the same color are different from each other. (21) The method for manufacturing a display device according to (20), wherein forming the light-emitting layer includes mask deposition of the material of the light-emitting layer.

[0178] 1 Display device 2 Pixel area 3 Pixel 30 Subpixel 30R Subpixel 30G Subpixel 30B Subpixel 31 Light-emitting element 32 Capacitor 33 Driving transistor 34 Capacitor 35 Writing transistor 4 Insulating layer 40 Via 5 Anode electrode 5R Anode electrode 5G Anode electrode 5B Anode electrode 50 Insulating part 6 Light-emitting layer 6R Light-emitting layer 6G Light-emitting layer 6Ga Edge 6B Light-emitting layer 6Ba Edge 60 Light-emitting region 60R Light-emitting region 60G Light-emitting region 60B Light-emitting region 7 Cathode electrode 7R Cathode electrode 7G Cathode electrode 7B Cathode electrode 70 Common electrode 71 First part 72 Second part 73 Insulating layer 8 Protective layer 9 Planarization layer 10 Color filter layer 11 Lens layer 12 Resin layer 13 Upper substrate 13a Top surface 19 Peripheral area 191 Horizontal drive circuit 192 Vertical drive circuit D1 Distance D2 Distance HL Signal line M Mask PL1 Power line PL2 Power line VL Signal line

Claims

1. A display device comprising a plurality of subpixels arranged in a two-dimensional array, each of which outputs light of a corresponding color, wherein each of the plurality of subpixels includes a light-emitting region that emits light of the color of the subpixel, and the distance between the light-emitting regions of adjacent subpixels of different colors and the distance between the light-emitting regions of adjacent subpixels of the same color are different from each other.

2. The display device according to claim 1, wherein the distance between the light-emitting regions of adjacent different-colored subpixels is greater than the distance between the light-emitting regions of adjacent same-colored subpixels.

3. The display device according to claim 1, wherein each of the plurality of subpixels includes an anode electrode, a cathode electrode, and a light-emitting layer provided between the anode electrode and the cathode electrode and capable of emitting light of the color of the subpixel, and the light-emitting region is a region of the light-emitting layer that is in contact with both the anode electrode and the cathode electrode.

4. The light-emitting layers of adjacent same-color subpixels are integrally formed, as described in claim 3.

5. The display device according to claim 3, wherein the light-emitting layer is formed by mask deposition of the material of the light-emitting layer, and the edges of the light-emitting layers of adjacent different-colored subpixels are stacked on top of each other between adjacent different-colored subpixels.

6. The display device according to claim 3, wherein the light-emitting layer is formed by shaping the material of the light-emitting layer.

7. The display device according to claim 1, wherein the distance between the anode electrodes of adjacent subpixels of different colors is greater than the distance between the anode electrodes of adjacent subpixels of the same color.

8. The display device according to claim 1, wherein the distance between the anode electrodes of adjacent subpixels of different colors is the same as the distance between the anode electrodes of adjacent subpixels of the same color.

9. The display device according to claim 1, wherein, when viewed from above, the light-emitting regions of at least some of the subpixels among the plurality of subpixels have the same shape as each other.

10. The display device according to claim 1, wherein, when viewed from above, the light-emitting regions of at least some of the subpixels among the plurality of subpixels have different shapes from each other.

11. The display device according to claim 1, comprising a plurality of pixels arranged in a two-dimensional array, wherein each of the plurality of pixels includes the adjacent different-colored subpixels.

12. The display device according to claim 11, wherein the plurality of pixels include pixels in which the light-emitting regions of adjacent different-colored subpixels have the same shape when viewed from a planar perspective.

13. The display device according to claim 11, wherein the plurality of pixels include pixels in which the light-emitting regions of adjacent dissimilar color subpixels have different shapes when viewed from a planar perspective.

14. The display device according to claim 11, wherein the plurality of pixels are arranged according to a square arrangement, and each of the plurality of pixels includes the subpixels arranged according to a square arrangement.

15. The display device according to claim 11, comprising a plurality of subpixel groups, each of the plurality of subpixel groups including adjacent same-color subpixels, and the plurality of subpixel groups are arranged alternately by one subpixel row for each subpixel group column.

16. The display device according to claim 11, wherein the plurality of pixels are arranged according to a delta array, and each of the plurality of pixels includes the subpixels arranged according to the delta array.

17. The display device according to claim 1, wherein each of the plurality of subpixels includes an element for driving light emission.

18. The display device according to claim 1, wherein each of the plurality of subpixels includes a color filter layer that allows light of a corresponding color from the light-emitting region to pass through, and a lens layer provided on the opposite side of the color filter layer from the light-emitting region.

19. The display device according to claim 1, wherein each of the plurality of subpixels includes an anode electrode, a cathode electrode, and a light-emitting layer provided between the anode electrode and the cathode electrode, which is capable of emitting light of the color of the subpixel, and the display device includes a common electrode provided between adjacent subpixels of different colors, and the cathode electrodes of adjacent subpixels of different colors are commonly connected to the common electrode.

20. A method for manufacturing a display device, comprising: forming an anode electrode; forming a light-emitting layer so as to cover the anode electrode; and forming a cathode electrode so as to cover the light-emitting layer, wherein the display device comprises a plurality of subpixels arranged in a two-dimensional array, each outputting light of a corresponding color; each of the plurality of subpixels includes a light-emitting region in the light-emitting layer that is in contact with both the anode electrode and the cathode electrode; and the distance between the light-emitting regions of adjacent subpixels of different colors and the distance between the light-emitting regions of adjacent subpixels of the same color are different from each other.

Images