Display device and electronic apparatus

JP2024108322A5Pending Publication Date: 2025-12-16SEIKO EPSON CORP
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Patent Information

Application Number
JP2023012631
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-01-31
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

Existing display devices with organic EL elements face challenges in improving image quality, particularly in mixing colors uniformly and maintaining brightness across different sub-pixels, leading to potential color changes and unevenness depending on the viewing angle.

Method used

The display device is designed with multiple adjacent sub-pixels, each with a specific light emitting region and pixel circuit, where the pixel electrodes and circuits are connected through contact holes in insulating layers, and the light emitting regions have notches to facilitate better color mixing and uniformity, with optimized shapes and sizes to reduce viewing angle effects.

Benefits of technology

This configuration enhances image quality by improving color mixing uniformity and maintaining brightness across sub-pixels, reducing color changes with viewing angle, and allowing for a more efficient use of pixel area, particularly for blue sub-pixels.

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Abstract

To provide a display device that can improve the image quality.SOLUTION: There is provided a display device in which a first sub pixel, a second sub pixel and a third sub pixel are adjacent to each other in each of multiple pixels; a first light emitting region overlaps a second light emitting region when viewed from a first direction; a third light emitting region overlaps the first light emitting region and the second light emitting region when viewed from a second direction perpendicular to the first direction; the first light emitting region has a shape that has a first notch on the opposite side to the second light emitting region in a plan view from the third direction perpendicular to the first direction and the second direction; the second light emitting region has a shape that has a second notch on the opposite side to the first light emitting region; at least one of a first contact hole and a third contact hole of the adjacent pixel of the multiple pixels is provided in the area of the first notch, and a second contact hole is provided in the area of the second notch.SELECTED DRAWING: Figure 5
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Description

[Technical field]

[0001] The present invention relates to a display device and an electronic device. [Background technology]

[0002] 2. Description of the Related Art Display devices having light-emitting elements such as organic EL (Electro Luminescence) elements are known.

[0003] For example, Patent Document 1 describes a display device in which a light-emitting section is formed in an L-shape and a contact hole for electrically connecting a pixel electrode and a pixel circuit is formed in an area where the light-emitting section is not formed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-45304 A Summary of the Invention [Problem to be solved by the invention]

[0005] In such display devices, it is desirable to improve the image quality. [Means for solving the problem]

[0006] One aspect of the display device according to the present invention is A plurality of pixels are included. Each of the plurality of pixels is a first sub-pixel having a first light-emitting region, a first pixel electrode, and a first pixel circuit that controls light emission in the first light-emitting region, and emitting a first color light; a second sub-pixel having a second light-emitting region, a second pixel electrode, and a second pixel circuit that controls light emission in the second light-emitting region, the second sub-pixel emitting a second color light different from the first color light; a third sub-pixel including a third light-emitting region, a third pixel electrode, and a third pixel circuit that controls light emission in the third light-emitting region, and that emits a third color light different from the first color light and the second color light; having In each of the plurality of pixels, the first sub-pixel, the second sub-pixel, and the third sub-pixel are adjacent to each other, When viewed from a first direction, the first light-emitting region overlaps with the second light-emitting region, When viewed from a second direction perpendicular to the first direction, the third light-emitting region overlaps with the first light-emitting region and the second light-emitting region, When viewed from a third direction perpendicular to the first direction and the second direction, the first light-emitting region has a shape having a first notch on an opposite side to the second light-emitting region, The second light-emitting region has a shape having a second notch on an opposite side to the first light-emitting region, the first pixel electrode and the first pixel circuit are electrically connected to each other via a first contact hole formed in an insulating layer provided between the first pixel electrode and the first pixel circuit; the second pixel electrode and the second pixel circuit are electrically connected to each other via a second contact hole formed in an insulating layer provided between the second pixel electrode and the second pixel circuit; the third pixel electrode and the third pixel circuit are electrically connected to each other via a third contact hole formed in an insulating layer provided between the third pixel electrode and the third pixel circuit; At least one of the first contact hole and the third contact hole of an adjacent pixel among the plurality of pixels is provided in a region of the first cutout; The second contact hole is provided in the region of the second cutout.

[0007] One aspect of the electronic device according to the present invention is The display device has one aspect of the above. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view illustrating a display device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a plan view illustrating a display panel of the display device according to the embodiment. [Diagram 3] FIG. 2 is a circuit diagram showing a pixel circuit of a sub-pixel of the display device according to the embodiment. [Figure 4] FIG. 2 is a cross-sectional view illustrating a pixel of the display device according to the embodiment. [Diagram 5] FIG. 2 is a plan view illustrating a pixel of the display device according to the embodiment. [Figure 6] FIG. 13 is a diagram for explaining a color change depending on a viewing angle. [Figure 7] FIG. 11 is a plan view illustrating a pixel of a display device according to a first modified example of the present embodiment. [Figure 8] FIG. 11 is a plan view illustrating a pixel of a display device according to a second modified example of the present embodiment. [Figure 9] FIG. 1 is a perspective view showing a schematic diagram of a head mounted display according to an embodiment of the present invention. [Figure 10] FIG. 2 is a diagram illustrating an image forming device and a light guiding device of the head mounted display according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Preferred embodiments of the present invention will be described in detail below with reference to the drawings. Note that the embodiments described below do not unduly limit the contents of the present invention described in the claims. In addition, not all of the configurations described below are necessarily essential components of the present invention.

[0010] 1. Display device 1.1. Overall structure First, the display device according to the present embodiment will be described with reference to the drawings. Fig. 1 is a perspective view that shows a display device 100 according to the present embodiment. Fig. 2 is a plan view that shows a display panel 110 of the display device 100 according to the present embodiment. Note that Figs. 1 and 2 show an X-axis, a Y-axis, and a Z-axis as three axes that are orthogonal to each other.

[0011] The display device 100 includes, for example, a display panel 110, an FPC (Flexible Printed Circuits) 120, and a frame 130 to which the display panel 110 is fixed, as shown in FIG.

[0012] The FPC 120 is electrically connected to the display panel 110. A driver IC (Integrated Circuit) 122 that drives the display panel 110 is mounted on the FPC 120. The FPC 120 has a plurality of external connection terminals 124. The external connection terminals 124 are terminals for inputting input signals such as image information from an external circuit to the driver IC 122. The frame 130 is provided with a window frame 132 through which the display on the display panel 110 can be viewed.

[0013] The display panel 110 has a display area 112 as shown in FIG. 2. In the illustrated example, the display area 112 is a rectangle with long sides parallel to the X-axis. In the display panel 110, a plurality of pixels P as display units are arranged in a matrix at a predetermined arrangement pitch. In the illustrated example, the plurality of pixels P are arranged in a matrix in the X-axis direction and the Y-axis direction. Although not shown in FIG. 2, the pixel P has, for example, a red sub-pixel capable of displaying red, a green sub-pixel capable of displaying green, and a blue sub-pixel capable of displaying blue. Note that the pixel P is illustrated in a simplified form in FIG. 2.

[0014] 1.2. Electrical configuration of sub-pixel 3 is a circuit diagram showing the pixel circuit 114 of the subpixel SP of the pixel P. The red subpixel capable of displaying red has a first pixel circuit 114R as the pixel circuit 114. The green subpixel capable of displaying green has a second pixel circuit 114G as the pixel circuit 114. The blue subpixel capable of displaying blue has a third pixel circuit 114B as the pixel circuit 114.

[0015] 3, the pixel circuit 114 of the subpixel SP includes, for example, four transistors 2a, 2b, 2c, and 2d, a storage capacitor 3, and an organic EL element 40. In a display area 112 of the display panel 110, a scanning line 4a, a data line 4b, a first control line 5a, a second control line 5b, a first power supply line 6a, and a second power supply line 6b are provided.

[0016] The pixel circuit 114 is provided between the first power supply wiring 6a and the second power supply wiring 6b. The scanning line 4a, the first control line 5a, and the second control line 5b extend in the X-axis direction so as to straddle the multiple pixel circuits 114 arranged in the X-axis direction. The data line 4b extends in the Y-axis direction so as to straddle the multiple pixel circuits 114 arranged in the Y-axis direction. A capacitive element 7 is connected in series to the input side of the data line 4b.

[0017] The pixel circuit 114 includes, for example, a writing control transistor 2a, a driving transistor 2b, a compensation transistor 2c, and a light-emitting control transistor 2d. The transistors 2a, 2b, 2c, and 2d may be P-channel or N-channel.

[0018] The organic EL element 40 has a pixel electrode 41 as an anode, a common electrode 43 as a cathode, and a light-emitting functional layer 42 provided between the pixel electrode 41 and the common electrode 43. The pixel electrode 41 is an electrode provided for each of the plurality of sub-pixels SP. The common electrode 43 is an electrode provided in common across the plurality of sub-pixels SP.

[0019] The light-emitting functional layer 42 of the organic EL element 40 has a light-emitting layer containing an organic light-emitting material. The light-emitting functional layer 42 emits, for example, white light.

[0020] The organic EL element 40 is connected between a first power supply wiring 6a and a second power supply wiring 6b via a drive transistor 2b and a light emission control transistor 2d. A high power supply potential Vel is supplied to the first power supply wiring 6a. A low power supply potential Vct is supplied to the second power supply wiring 6b. The power supply potential Vct is, for example, a ground potential.

[0021] A source of the driving transistor 2b is connected to, for example, a first power supply wiring 6a. A drain of the driving transistor 2b is connected to, for example, a source of the emission control transistor 2d. A drain of the emission control transistor 2d is connected to a pixel electrode 41 of the organic EL element 40. A common electrode 43 of the organic EL element 40 is connected to a second power supply wiring 6b.

[0022] The gate of the write control transistor 2a is connected to the scanning line 4a. The source of the write control transistor 2a is connected to, for example, a data line 4b. The drain of the write control transistor 2a is connected to, for example, a gate of the drive transistor 2b. One capacitance electrode 3a of the storage capacitor 3 is connected to a first power supply wiring 6a. The other capacitance electrode 3b of the storage capacitor 3 is connected to the drain of the write control transistor 2a.

[0023] The gate of the compensation transistor 2c is connected to a first control line 5a. The source of the compensation transistor 2c is connected to, for example, a data line 4b. The drain of the compensation transistor 2c is connected to, for example, a source of the emission control transistor 2d. The gate of the emission control transistor 2d is connected to a second control line 5b.

[0024] The source-drain connections of the transistors 2a, 2b, 2c, and 2d may be reversed. For example, the drain of the write control transistor 2a may be connected to the data line 4b, and the source of the write control transistor 2a may be connected to the gate of the drive transistor 2b.

[0025] The scanning line 4a is connected to a scanning line driving circuit that supplies a scanning signal. The data line 4b is connected to one end of a capacitive element 7. The other end of the capacitive element 7 is connected to a data line driving circuit that supplies a data signal based on an image signal. The data signal is supplied to the capacitive element 7, and a potential corresponding to the data signal is supplied to the data line 4b.

[0026] In the display device 100, a horizontal scanning period includes a compensation period and a writing period. The scanning line driving circuit sequentially selects each of the multiple scanning lines 4a for each horizontal scanning period by supplying a scanning signal to the scanning lines 4a. The writing control transistor 2a of the pixel circuit 114 corresponding to the scanning line 4a selected by the scanning line driving circuit transitions to an ON state. Furthermore, the driving transistor 2b of the pixel circuit 114 also transitions to an ON state.

[0027] The scanning line driving circuit sequentially selects each of the multiple first control lines 5a for each compensation period by supplying a control signal to the first control line 5a. The compensation transistor 2c of the pixel circuit 114 corresponding to the first control line 5a selected by the scanning line driving circuit transitions to an ON state. Then, the storage capacitor 3 holds the threshold voltage |Vth| of the driving transistor 2b until the end of the compensation period when the compensation transistor 2c is turned OFF.

[0028] When the scanning line driving circuit supplies a control signal to the first control line 5a to control the compensation transistor 2c of the pixel circuit 114 to the off state, the path from the data line 4b to the gate electrode of the driving transistor 2b is put into a floating state. Meanwhile, the gate potential of the driving transistor 2b is maintained at a potential of (Vel-|Vth|) by the storage capacitor 3.

[0029] Next, the data line driving circuit supplies, in parallel to the capacitive element 7 for each writing period, a gradation potential (data signal) corresponding to the gradation specified for each pixel circuit 114 by an image signal supplied from an external circuit. The level of the gradation potential is shifted using the capacitive element 7, and the potential is supplied to the gate of the driving transistor 2b of the pixel circuit 114 via the data line 4b and the writing control transistor 2a. The storage capacitor 3 holds a voltage corresponding to the gradation potential while compensating for the threshold voltage |Vth| of the driving transistor 2b.

[0030] On the other hand, when the selection of the scanning line 4a in the writing period is completed, the scanning line driving circuit controls the emission control transistor 2d of the pixel circuit 114 corresponding to the second control line 5b to be in the on state by supplying a control signal to the second control line 5b. As a result, a driving current according to the voltage held in the holding capacitor 3 in the immediately preceding writing period is supplied from the driving transistor 2b via the emission control transistor 2d to the organic EL element 40. Then, the organic EL element 40 emits light with a luminance according to the amount of the driving current.

[0031] As described above, the organic EL element 40 emits light at a luminance corresponding to the gradation potential, and an arbitrary image specified by the image signal is displayed. The influence of the threshold voltage of the drive current supplied from the drive transistor 2b to the organic EL element 40 is offset. Therefore, even if the threshold voltage of the drive transistor 2b varies for each pixel circuit 114, the variation is compensated for. In addition, since a drive current corresponding to the gradation level is supplied to the organic EL element 40, the occurrence of display unevenness that impairs the uniformity of the display screen can be suppressed. As a result, a high-quality display is possible.

[0032] The pixel circuit 114 is not limited to having four transistors 2a, 2b, 2c, and 2d. For example, if the variation in the threshold voltage of the driving transistor 2b between pixel circuits 114 is small, the pixel circuit 114 may not have the compensation transistor 2c.

[0033] In addition, the configuration of the signal wiring is not particularly limited. For example, in the above, the scanning line 4a is a wiring different from the first control line 5a, but the scanning line 4a and the first control line 5a may be a single wiring.

[0034] 1.4. Cross-sectional structure of pixel FIG. 4 is a cross-sectional view illustrating a pixel P of the display device 100. As shown in FIG.

[0035] As shown in FIG. 4, the pixel P has, for example, a substrate 10, interlayer insulating layers 14, 15, 16, and 17, a wiring layer 18, a reflective layer 20, an insulating layer 30, an organic EL element 40, a contact 50, an insulating layer 60, a sealing layer 70, a colored layer 80, and a counter substrate 90.

[0036] The substrate 10 is, for example, a silicon substrate. The substrate 10 is provided with an impurity region 11 into which an impurity is ion-implanted. The impurity region 11 functions as a source or drain of the above-mentioned transistors 2a, 2b, 2c, and 2d. A gate insulating layer 12 is provided on the substrate 10. The material of the gate insulating layer 12 is, for example, silicon oxide. A gate electrode 13 is provided on the gate insulating layer 12. The material of the gate electrode 13 is, for example, metal, polysilicon, or the like. The substrate 10, the impurity region 11, the gate insulating layer 12, and the gate electrode 13 constitute the above-mentioned transistors 2a, 2b, 2c, and 2d. The substrate 10, the impurity region 11, the gate insulating layer 12, and the gate electrode 13 constitute the above-mentioned pixel circuit 114.

[0037] The interlayer insulating layer 14 covers the gate insulating layer 12 and the gate electrode 13. The interlayer insulating layers 14, 15, 16, and 17 are stacked in this order from the substrate 10 side. The interlayer insulating layers 14, 15, 16, and 17 are, for example, silicon oxide layers.

[0038] The wiring layer 18 is provided on the interlayer insulating layer 14, the interlayer insulating layer 15, and the interlayer insulating layer 16. The material of the wiring layer 18 is a metal such as aluminum or copper. The wiring layer 18 constitutes the above-mentioned scanning lines 4a, data lines 4b, control lines 5a and 5b, and power supply lines 6a and 6b.

[0039] The reflective layer 20 is provided on the interlayer insulating layer 17. The reflective layer 20 is provided between the interlayer insulating layer 17 and the insulating layer 30. The reflective layer 20 is provided for each of a plurality of subpixels SP. In FIG. 2, two subpixels SP are illustrated. The reflective layer 20 is made of a material such as a metal such as aluminum. The reflective layer 20 reflects light generated by the organic EL element 40 and directed toward the substrate 10, toward the colored layer 80.

[0040] The insulating layer 30 is provided on the reflective layer 20. The insulating layer 30 is provided between the reflective layer 20 and the organic EL element 40. The insulating layer 30 is provided between the pixel circuit 114 and the pixel electrode 41. The insulating layer 30 has different thicknesses in the subpixel SP emitting red light, the green subpixel SP emitting green light, and the blue subpixel SP emitting blue light. The insulating layer 30 has, for example, a stacked structure in which a plurality of layers are stacked. The insulating layer 30 has different numbers of stacked layers in the subpixel SP emitting red light, the green subpixel SP emitting green light, and the blue subpixel SP emitting blue light. The insulating layer 30 is, for example, a silicon oxide layer, a silicon nitride layer, a silicon oxynitride layer, or the like.

[0041] The organic EL element 40 is provided on the insulating layer 30. The organic EL element 40 is provided between the insulating layer 30 and the sealing layer 70. The organic EL element 40 is, for example, an OLED (Organic Light Emitting Diode). The organic EL element 40 has a pixel electrode 41, a light emitting functional layer 42, and a common electrode 43.

[0042] The pixel electrode 41 is provided on the insulating layer 30. The pixel electrode 41 is provided between the insulating layer 30 and the light-emitting functional layer 42. The pixel electrode 41 is provided for each of a plurality of sub-pixels SP. The pixel electrode 41 transmits light generated in the light-emitting functional layer 42. The pixel electrode 41 is a transparent electrode made of, for example, ITO (Indium Tin Oxide). The pixel electrode 41 is one of the electrodes for injecting a current into the light-emitting functional layer 42.

[0043] The light-emitting functional layer 42 is provided on the pixel electrode 41. The light-emitting functional layer 42 is provided between the pixel electrode 41 and a common electrode 43. The light-emitting functional layer 42 is provided continuously in a plurality of sub-pixels SP. The light-emitting functional layer 42 is configured, for example, by stacking a plurality of light-emitting layers. The light-emitting functional layer 42 emits, for example, white light.

[0044] The common electrode 43 is provided on the light-emitting functional layer 42. The common electrode 43 is provided between the light-emitting functional layer 42 and the sealing layer 70. The common electrode 43 is a common electrode provided continuously in the plurality of sub-pixels SP. The material of the common electrode 43 is, for example, an alloy of magnesium and silver. The common electrode 43 is the other electrode for injecting a current into the light-emitting functional layer 42.

[0045] The common electrode 43, the insulating layer 30, and the reflective layer 20 form an optically resonant structure. The thickness of the insulating layer 30 is adjusted so as to form a standing wave of a predetermined wavelength between the reflective layer 20 and the common electrode 43. This allows light of a predetermined wavelength to be emitted from the organic EL element 40 for each of the sub-pixels SP.

[0046] The contact 50 is connected to the pixel electrode 41. The contact 50 is provided in a contact hole 52 formed in the insulating layer 30. The contact 50 is provided between the reflective layer 20 and the pixel electrode 41. A plurality of contacts 50 are provided corresponding to the plurality of pixel electrodes 41. The contact 50 is provided, for example, integrally with the pixel electrode 41. The contact 50 is electrically connected to the wiring layer 18. The current flowing through the wiring layer 18 is supplied to the pixel electrode 41 through the contact 50. In this embodiment, the contact 50 is provided integrally with the pixel electrode 41, but this is not limited thereto, and the contact 50 and the pixel electrode 41 may be made of different materials.

[0047] The insulating layer 60 covers the contact 50. When viewed from the Z-axis direction (hereinafter also referred to as "in a planar view"), the insulating layer 60 overlaps the contact 50. The insulating layer 60 is provided on the pixel electrode 41. The insulating layer 60 is provided between the pixel electrode 41 and the light-emitting function layer 42. When viewed in a planar view, the insulating layer 60 overlaps the outer edge of the pixel electrode 41. The insulating layer 60 is, for example, a silicon oxide layer, a silicon nitride layer, or a silicon oxynitride layer.

[0048] An opening 62 is formed in the insulating layer 60. The opening 62 penetrates the insulating layer 60. The insulating layer 60 defines the light-emitting region 44 of the organic EL element 40. The light-emitting region 44 is a region that overlaps with the opening 62 of the organic EL element 40 in a planar view. In other words, the light-emitting region 44 is a region where the pixel electrode 41 and the light-emitting functional layer 42 are in contact with each other in a planar view. The light-emitting region 44 does not overlap with the insulating layer 60 in a planar view. In the region where the insulating layer 60 is provided, the supply of holes from the pixel electrode 41 to the light-emitting functional layer 42 is suppressed, and the light emission of the light-emitting functional layer 42 is suppressed. In the organic EL element 40, the region that overlaps with the contact 50 is not used as the light-emitting region 44, so that the light can be prevented from being blocked by the contact 50. The pixel circuit 114 controls the light emission of the light-emitting functional layer 42 in the light-emitting region 44.

[0049] The sealing layer 70 is provided on the common electrode 43. The sealing layer 70 is provided between the common electrode 43 and the colored layer 80. The sealing layer 70 is continuous in a plurality of sub-pixels SP. The sealing layer 70 is configured by, for example, laminating an inorganic layer and an organic layer. The sealing layer 70 may have a structure in which an organic layer is sandwiched between a pair of inorganic layers. The inorganic layer is, for example, a silicon oxide layer, a silicon nitride layer, or a silicon oxynitride layer. The inorganic layer protects the light-emitting functional layer 42 from moisture, oxygen, and the like. The organic layer is, for example, an acrylic resin layer. The organic layer improves the flatness of the upper surface of the sealing layer 70.

[0050] The colored layer 80 is provided on the sealing layer 70. The colored layer 80 is provided between the sealing layer 70 and the counter substrate 90. The colored layer 80 is a color filter configured to transmit light of a predetermined wavelength in each of the sub-pixels SP that emit red light, the green sub-pixels SP that emit green light, and the blue sub-pixels SP that emit blue light. The material of the colored layer 80 is, for example, a color resist.

[0051] The counter substrate 90 is provided on the colored layer 80. In the illustrated example, the counter substrate 90 is adhered to the colored layer 80 by an adhesive layer 92. The counter substrate 90 and the adhesive layer 92 transmit light emitted from the colored layer 80. The counter substrate 90 functions as a protective substrate that protects the organic EL element 40 and the colored layer 80.

[0052] The pixels P of the display device 100 are manufactured using, for example, a known semiconductor manufacturing process.

[0053] 1.5. Planar structure of pixel Fig. 5 is a plan view showing a pixel P of the display device 100. Fig. 4 mentioned above is a cross-sectional view taken along line VI-VI in Fig. 5. For convenience, Fig. 5 omits illustration of members other than the reflective layer 20, the pixel electrode 41, the light-emitting region 44, the contact 50, and the colored layer 80. The colored layer 80 is indicated by a dashed line.

[0054] 5, a plurality of pixels P are provided. The number of pixels P is not particularly limited as long as it is a plurality of pixels P. The plurality of pixels P are arranged in a matrix in the X-axis direction and the Y-axis direction.

[0055] The shapes of pixels P adjacent in the X-axis direction have a complementary relationship in the Y-axis direction. That is, of the pixels P adjacent in the X-axis direction, the shape of one pixel P is the inverted shape in the Y-axis direction of the other pixel P. This makes the color change symmetrical in the Y-axis direction, reducing the sense of incongruity caused by color change due to viewing angle. Meanwhile, the pixels P adjacent in the Y-axis direction are arranged to have the same shape.

[0056] A pixel P is composed of three sub-pixels SP. Specifically, the pixel P is composed of three sub-pixels SP: a red sub-pixel SPR that emits red light, a green sub-pixel SPG that emits green light, and a blue sub-pixel SPB that emits blue light. The sub-pixels SPR, SPG, and SPB that constitute one pixel P are adjacent to each other. In the multiple pixels P, the multiple sub-pixels SPR, SPG, and SPB are arranged in a delta configuration. A figure F that connects the centers of the sub-pixels SPR, SPG, and SPB that constitute one pixel P is, for example, a right-angled triangle, an equilateral triangle, or an isosceles triangle. In a plan view, the outer edge of the colored layer 80 defines the shapes of the sub-pixels SPR, SPG, and SPB.

[0057] The red subpixel SPR has a first pixel electrode 41R as the pixel electrode 41, a first pixel circuit 114R as the pixel circuit 114, a first light-emitting region 44R as the light-emitting region 44, and a first pixel contact 50R as the contact 50. The green subpixel SPG has a second pixel electrode 41G as the pixel electrode 41, a second pixel circuit 114G as the pixel circuit 114, a second light-emitting region 44G as the light-emitting region 44, and a second pixel contact 50G as the contact 50. The blue subpixel SPB has a third pixel electrode 41B as the pixel electrode 41, a third pixel circuit 114B as the pixel circuit 114, a third light-emitting region 44B as the light-emitting region 44, and a third pixel contact 50B as the contact 50. The first pixel electrode 41R is electrically connected to the first pixel circuit 114R via a first contact hole 52R as the contact hole 52. The second pixel electrode 41G is electrically connected to the second pixel circuit 114G through a second contact hole 52G serving as the contact hole 52. The third pixel electrode 41B is electrically connected to the third pixel circuit 114B through a third contact hole 52B serving as the contact hole 52.

[0058] The first light-emitting region 44R, the second light-emitting region 44G, and the third light-emitting region 44B are shaped such that their longitudinal direction is in the X-axis direction. In the light-emitting regions 44R, 44G, and 44B, the size in the X-axis direction is greater than the size in the Y-axis direction. In a plurality of pixels P, the first light-emitting region 44R, the second light-emitting region 44G, and the third light-emitting region 44B are repeatedly arranged in this order in the X-axis direction.

[0059] The first light-emitting region 44R, the second light-emitting region 44G, and the third light-emitting region 44B are provided inside the outer edge of the pixel electrode 41 in a planar view. The pixel electrode 41 is provided inside the outer edge of the reflective layer 20 in a planar view. The reflective layer 20 is provided inside the colored layer 80 in a planar view. In the illustrated example, in the pixels P adjacent to each other in the X-axis direction, the reflective layer 20 of the red sub-pixel SPR and the reflective layer 20 of the blue sub-pixel SPB are separated from each other. In a planar view, the pixel electrode 41 and the colored layer 80 have, for example, a rectangular shape. Note that, in the pixels P adjacent to each other in the X-axis direction, the respective reflective layers 20 may be continuous.

[0060] In one pixel P, the first light-emitting region 44R overlaps with the second light-emitting region 44G when viewed from the X-axis direction. In other words, when the first light-emitting region 44R is moved in the X-axis direction, it overlaps with the second light-emitting region 44G. In one pixel P, the third light-emitting region 44B overlaps with the first light-emitting region 44R and the second light-emitting region 44G when viewed from the Y-axis direction. In other words, when the third light-emitting region 44B is moved in the Y-axis direction, it overlaps with the first light-emitting region 44R and the second light-emitting region 44G.

[0061] In one pixel P, the first light-emitting region 44R has a first cutout 45R on the opposite side to the second light-emitting region 44G in a plan view. The first cutout 45R is provided on the opposite side to the third light-emitting region 44B. The first cutout 45R is provided in the -X-axis direction of the first light-emitting region 44R. The first light-emitting region 44R has a substantially L-shape due to the first cutout 45R. When viewed from the Y-axis direction, the first cutout 45R does not overlap with, for example, the third light-emitting region 44B.

[0062] A first pixel contact 50R (first contact hole 52R) is provided in the region of the first cutout 45R. Furthermore, a third pixel contact 50B (third contact hole 52B) is provided in the region of the first cutout 45R. The third pixel contact 50B (third contact hole 52B) provided in the region of the first cutout 45R is the third pixel contact 50B (third contact hole 52B) of the blue sub-pixel SPB of the pixel P adjacent in the X-axis direction to the pixel P having the first cutout 45R. In the illustrated example, in the region of the first cutout 45R, the third pixel contact 50B (third contact hole 52B) is provided in the -X-axis direction of the first pixel contact 50R (first contact hole 52R).

[0063] The region of the first cutout 45R has a shape whose longitudinal direction is in the X-axis direction. In the region of the first cutout 45R, the size in the X-axis direction is larger than the size in the Y-axis direction. In the illustrated example, the shape of the first cutout 45R is rectangular.

[0064] In one pixel P, the second light-emitting region 44G has a second cutout 45G on the opposite side to the first light-emitting region 44R in a plan view. The second cutout 45G is provided on the opposite side to the third light-emitting region 44B. The second cutout 45G is provided in the +X-axis direction of the second light-emitting region 44G. The second light-emitting region 44G has a substantially L-shaped shape due to the second cutout 45G. When viewed from the Y-axis direction, the second cutout 45G does not overlap with, for example, the third light-emitting region 44B. When viewed from the X-axis direction, the second cutout 45G overlaps with the first cutout 45R.

[0065] A second pixel contact 50G (second contact hole 52G) is provided in the region of the second cutout 45G. In the illustrated example, the shape of the second cutout 45G is square.

[0066] The third light-emitting region 44B is, for example, rectangular in shape. The third light-emitting region 44B has a shape without a notch. A third pixel contact 50B (third contact hole 52B) for causing the third light-emitting region 44B to emit light is provided in the region of the first notch 45R of the pixel P having the third light-emitting region 44B and the adjacent pixel P. In a plan view, the area of ​​the third light-emitting region 44B is, for example, larger than the area of ​​the second light-emitting region 44G.

[0067] In one pixel P, the distance D1 between the first light-emitting region 44R and the second light-emitting region 44G, the distance D2 between the second light-emitting region 44G and the third light-emitting region 44B, and the distance D3 between the first light-emitting region 44R and the third light-emitting region 44B are, for example, the same as each other. The distance D1 is the shortest distance between the first light-emitting region 44R and the second light-emitting region 44G. The distance D2 is the shortest distance between the second light-emitting region 44G and the third light-emitting region 44B. The distance D3 is the shortest distance between the first light-emitting region 44R and the third light-emitting region 44B.

[0068] The maximum size in the X-axis direction of the first light-emitting region 44R, the maximum size in the X-axis direction of the second light-emitting region 44G, and the maximum size in the X-axis direction of the third light-emitting region 44B are, for example, the same as each other. The maximum size in the Y-axis direction of the first light-emitting region 44R, the maximum size in the Y-axis direction of the second light-emitting region 44G, and the maximum size in the Y-axis direction of the third light-emitting region 44B are, for example, the same as each other.

[0069] In one pixel P, the length of the side of the first light-emitting region 44R facing the second light-emitting region 44G is the same as the length of the side of the second light-emitting region 44G facing the first light-emitting region 44R. In the illustrated example, the length of the side of the first light-emitting region 44R parallel to the Y axis in the +X axis direction is the same as the length of the side of the second light-emitting region 44G parallel to the Y axis in the -X axis direction.

[0070] 1.6. Effects In the display device 100, in each of the pixels P, the red subpixel SPR as the first subpixel, the green subpixel SPG as the second subpixel, and the blue subpixel SPB as the third subpixel are adjacent to each other. When viewed from the X-axis direction as the first direction, the first light-emitting region 44R overlaps with the second light-emitting region 44G, and when viewed from the Y-axis direction as the second direction perpendicular to the first direction, the third light-emitting region 44B overlaps with the first light-emitting region 44R and the second light-emitting region 44G. In each of the pixels P, when viewed in a plan view from the Z-axis direction as the third direction perpendicular to the first and second directions, the first light-emitting region 44R has a shape having a first cutout 45R on the opposite side to the second light-emitting region 44G, and the second light-emitting region 44G has a shape having a second cutout 45G on the opposite side to the first light-emitting region 44R. The first pixel electrode 41R and the first pixel circuit 114R are electrically connected to each other through a first contact hole 52R formed in the insulating layer 30 provided between the first pixel electrode 41R and the first pixel circuit 114R. The second pixel electrode 41G and the second pixel circuit 114G are electrically connected to each other through a second contact hole 52G formed in the insulating layer 30 provided between the second pixel electrode 41G and the second pixel circuit 114G. The third pixel electrode 41B and the third pixel circuit 114B are electrically connected to each other through a third contact hole 52B formed in the insulating layer 30 provided between the third pixel electrode 41B and the third pixel circuit 114B. At least one of the first contact hole 52R and the third contact hole 52B of the adjacent pixel P among the multiple pixels P is provided in the region of the first cutout 45R, and the second contact hole 52G is provided in the region of the second cutout 45G.

[0071] Therefore, in the display device 100, the colored light emitted from the red subpixel SPR, the green subpixel SPG, and the blue subpixel SPB can be mixed more easily than in a case where the first light-emitting region has a shape with a notch on the second light-emitting region side and the second light-emitting region has a shape with a notch on the first light-emitting region side. This can improve image quality. In the display device 100, the center of gravity of the first light-emitting region 44R, the center of gravity of the second light-emitting region 44G, and the center of gravity of the third light-emitting region 44B can be brought closer to the center of the pixel P in a plan view.

[0072] For example, when colored light emitted from the red, green, and blue subpixels is mixed to emit white light from the pixel, if the first light-emitting region has a notch on the second light-emitting region side, or if the second light-emitting region has a notch on the first light-emitting region side, the colored light emitted from the red, green, and blue subpixels is difficult to mix, and the color purity of the white light is reduced.

[0073] Furthermore, in the display device 100, at least one of the first contact hole 52R and the third contact hole 52B of an adjacent pixel P among the multiple pixels P is provided in the area of ​​the first cutout 45R, and the second contact hole 52G is provided in the area of ​​the second cutout 45G, thereby making it possible to reduce the area of ​​the pixel P.

[0074] In the display device 100, the first contact hole 52R and the third contact hole 52B of the adjacent pixel P among the plurality of pixels P are provided in the region of the first cutout 45R. Therefore, in the display device 100, it is not necessary to form the third light-emitting region 44B into a shape having a cutout in order to provide the third contact hole 52B. This allows the area of ​​the third light-emitting region 44B to be increased. The blue subpixel SPB having the third light-emitting region 44B emits blue light having a shorter wavelength than red light and green light, and therefore may deteriorate faster than the red subpixel SPR and the green subpixel SPG, and is more likely to decrease in luminance. Therefore, by increasing the area of ​​the third light-emitting region 44B, it is possible to suppress the decrease in luminance of the blue subpixel SPB. This allows the luminance of the blue subpixel SPB to approach the luminance of the subpixels SPR and SPG.

[0075] In the display device 100, the first light-emitting region 44R, the second light-emitting region 44G, and the third light-emitting region 44B have a shape having a longitudinal direction in the X-axis direction, and the first light-emitting region 44R, the second light-emitting region 44G, and the third light-emitting region 44B are aligned in the X-axis direction in a plurality of pixels P. Therefore, in the display device 100, color change due to viewing angle can be reduced.

[0076] Here, Fig. 6 is a diagram for explaining color changes depending on the viewing angle. In Fig. 6, a plurality of light-emitting regions L are aligned in the X-axis direction. Red filters CR, green filters CG, and blue filters CB are also aligned in the X-axis direction.

[0077] In the case of α shown in Fig. 6, light that has passed through the red filter CR is incident on the eye E located at a position Δx away in the +X-axis direction from the center O of the light-emitting area L located furthest in the -X-axis direction. Therefore, there is little color change between when viewed from the position of the center O and when viewed from a position Δx away in the +X-axis direction from the center O.

[0078] In the case of β shown in FIG. 6, the size of the light-emitting area L in the X-axis direction is smaller than in the case of α. Accordingly, in the case of β, the size of the filters CR, CG, and CB in the X-axis direction is smaller than in the case of α. In the case of β shown in FIG. 6, light that has passed through not only the red filter CR but also the green filter CG is incident on the eye E located at a distance Δx from the center O in the +X-axis direction. Therefore, there is a large color change between when viewed from the position of the center O and when viewed from a position Δx away from the center O in the +X-axis direction.

[0079] As described above, the color change due to the viewing angle can be reduced by increasing the size of the light-emitting region L in the X-axis direction. In display device 100, as described above, light-emitting regions 44R, 44G, 44B have a shape having a longitudinal direction in the X-axis direction, and in multiple pixels P, light-emitting regions 44R, 44G, 44B are aligned in the X-axis direction, so that the color change due to the viewing angle can be reduced.

[0080] Furthermore, in display device 100, the area ratio of light emitting regions 44R, 44G, and 44B can be adjusted by changing the sizes of light emitting regions 44R, 44G, and 44B in the X-axis direction.

[0081] In the display device 100, the region of the first cutout 45R has a shape having a longitudinal direction in the X-axis direction. Therefore, for example, compared to a case where the region of the first cutout has a shape having a longitudinal direction in the Y-axis direction, the width W of the narrowing region 47 of the first light-emitting region 44R can be made larger. In the illustrated example, the narrowing region 47 is located on the Y-axis direction of the first cutout 45R. The width W is the size of the narrowing region 47 in the Y-axis direction.

[0082] In the display device 100, the distance D1 between the first light-emitting region 44R and the second light-emitting region 44G, the distance D2 between the second light-emitting region 44G and the third light-emitting region 44B, and the distance D3 between the first light-emitting region 44R and the third light-emitting region 44B are the same in each of the multiple pixels P. Therefore, in the display device 100, the colored lights emitted from the light-emitting regions 44R, 44G, and 44B can be mixed with good uniformity.

[0083] 2. Display Device Modifications 2.1. First variant Next, a display device 200 according to a first modified example of this embodiment will be described with reference to the drawings. Fig. 7 is a plan view showing a schematic view of a pixel P of the display device 200 according to the first modified example of this embodiment.

[0084] Hereinafter, in the display device 200 according to the first modification of this embodiment, the components having the same functions as those of the components of the display device 100 according to this embodiment described above are denoted by the same reference numerals, and detailed description thereof will be omitted. This is the same for the display device according to the second modification of this embodiment described later.

[0085] In the display device 100 described above, as shown in FIG. 5, the third light-emitting region 44B has a rectangular shape.

[0086] In contrast, in the display device 200, as shown in FIG. 7, in one pixel P, the third light-emitting region 44B has a third cutout 45B on the opposite side to the second light-emitting region 44G in a plan view.

[0087] The third light-emitting region 44B has a substantially L-shape due to the third cutout 45B. In the illustrated example, the cutouts 45R, 45G, and 45B are square. The areas of the light-emitting regions 44R, 44G, and 44B are, for example, the same as each other.

[0088] The third pixel contact 50B (third contact hole 52B) for the blue sub-pixel SPB is provided in the region of the third cutout 45B. The third pixel contact 50B (third contact hole 52B) is not provided in the region of the first cutout 45R. The first pixel contact 50R (first contact hole 52R) is provided in the region of the first cutout 45R.

[0089] In the display device 200, in each of the pixels P, the third light-emitting region 44B has a third cutout 45B on the opposite side to the second light-emitting region 44G in a plan view, and the first pixel contact 50R (first contact hole 52R) of the red subpixel SPR is provided in the region of the first cutout 45R, and the third pixel contact 50B (third contact hole 52B) of the blue subpixel SPB is provided in the region of the third cutout 45B. Therefore, in the display device 200, the difference between the area of ​​the first light-emitting region 44R, the area of ​​the second light-emitting region 44G, and the area of ​​the third light-emitting region 44B can be reduced. This allows the difference in luminance of the subpixels SPR, SPG, and SPB to be reduced when the difference in degradation rate of the subpixels SPR, SPG, and SPB is small.

[0090] 2.2. Second variant Next, a display device 300 according to a second modified example of this embodiment will be described with reference to the drawings. Fig. 8 is a plan view showing a schematic view of a pixel P of the display device 300 according to the second modified example of this embodiment.

[0091] In the display device 100 described above, as shown in FIG. 5, the first light-emitting region 44R has a substantially L-shape.

[0092] In contrast, in the display device 300, the shape of the first light-emitting region 44R is substantially T-shaped as shown in Fig. 8. The shape of the first light-emitting region 44R is convex.

[0093] In one pixel P, in a plan view, the first light-emitting region 44R has a first cutout 45R on the opposite side to the second light-emitting region 44G, and a fourth cutout 46R on the second light-emitting region 44G side. The fourth cutout 46R is provided on the opposite side to the third light-emitting region 44B. The fourth cutout 46R is provided in the +X-axis direction of the first light-emitting region 44R. In the illustrated example, the cutouts 45R, 45G, and 46R are square in shape.

[0094] A first pixel contact 50R (first contact hole 52R) is provided in the region of the fourth cutout 46R. The first pixel contact 50R (first contact hole 52R) is not provided in the region of the first cutout 45R. A third pixel contact 50B (third contact hole 52B) is provided in the region of the first cutout 45R.

[0095] In the display device 300, in each of the multiple pixels P, the first light-emitting region 44R has a shape having a fourth cutout 46R on the side opposite to the third light-emitting region 44B and on the green subpixel SPG side in a plan view, the third pixel contact 50B (third contact hole 52B) of the blue subpixel SPB of an adjacent pixel P among the multiple pixels P is provided in the region of the first cutout 45R, and the first pixel contact 50R (first contact hole 52R) of the red subpixel SPR is provided in the region of the fourth cutout 46R. Therefore, in the display device 300, the area of ​​the first cutout 45R can be reduced.

[0096] 3. Electronic equipment 3.1. Overall structure Next, a head mounted display as an electronic device according to this embodiment will be described with reference to the drawings. Fig. 9 is a perspective view showing a schematic diagram of a head mounted display 900 according to this embodiment.

[0097] The head mounted display 900 is a head-mounted display having an appearance like glasses, as shown in Fig. 9. The head mounted display 900 is worn on the head of an observer. The observer is a user who uses the head mounted display 900. The head mounted display 900 allows the observer to view image light formed by a virtual image, and also allows the observer to view an external world image in a see-through manner.

[0098] The head mounted display 900 has, for example, a first display unit 910a, a second display unit 910b, a frame 920, a first temple 930a, and a second temple 930b.

[0099] The first display unit 910a and the second display unit 910b display images. Specifically, the first display unit 910a displays a virtual image for the observer's right eye. The second display unit 910b displays a virtual image for the observer's left eye. The display units 910a and 910b each include, for example, an image forming device 911 and a light guide device 915.

[0100] The image forming device 911 forms image light. The image forming device 911 has an optical system, such as a light source and a projection device, and an external member 912. The external member 912 houses the light source and the projection device.

[0101] The light guiding device 915 covers the viewer's eyes. The light guiding device 915 guides the image light formed by the image forming device 911 and allows the viewer to visually recognize the image light overlapping with the outside light. Details of the image forming device 911 and the light guiding device 915 will be described later.

[0102] The frame 920 supports the first display unit 910a and the second display unit 910b. The frame 920, for example, surrounds the display units 910a and 910b. In the illustrated example, the image forming device 911 of the first display unit 910a is attached to one end of the frame 920. The image forming device 911 of the second display unit 910b is attached to the other end of the frame 920.

[0103] A first temple 930a and a second temple 930b extend from the frame 920. In the illustrated example, the first temple 930a extends from one end of the frame 920. The second temple 930b extends from the other end of the frame 920.

[0104] The first temple 930a and the second temple 930b are suspended from the ears of the viewer when the viewer wears the head mounted display 900. The viewer's head is positioned between the temples 930a and 930b.

[0105] 3.2. Image forming device and light guide device 10 is a diagram illustrating an image forming device 911 and a light guide device 915 of a first display unit 910a of a head mounted display 900. The first display unit 910a and the second display unit 910b basically have the same configuration. Therefore, the following description of the first display unit 910a can be applied to the second display unit 910b.

[0106] As shown in FIG. 10, the image forming device 911 includes, for example, the display device 100 as a light source, and a projection device 914 for forming an image.

[0107] The projection device 914 projects the image light emitted from the display device 100 toward the light guide device 915. The projection device 914 is, for example, a projection lens. The lens constituting the projection device 914 may have an axially symmetrical surface as a lens surface.

[0108] The light guiding device 915 is precisely positioned with respect to the projection device 914 by, for example, being screwed to the lens barrel of the projection device 914. The light guiding device 915 has, for example, an image light guiding member 916 that guides the image light, and a see-through member 918 for see-through.

[0109] The image light emitted from the projection device 914 is incident on the image light guiding member 916. The image light guiding member 916 is a prism that guides the image light toward the viewer's eye. The image light that enters the image light guiding member 916 is repeatedly reflected on the inner surface of the image light guiding member 916, and is then reflected by the reflective layer 917 and emitted from the image light guiding member 916. The image light that is emitted from the image light guiding member 916 reaches the viewer's eye. The reflective layer 917 is made of, for example, a metal or a dielectric multilayer film. The reflective layer 917 may be a half mirror.

[0110] The transparent member 918 is adjacent to the image light guiding member 916. The transparent member 918 is fixed to the image light guiding member 916. For example, the outer surface of the transparent member 918 is continuous with the outer surface of the image light guiding member 916. The transparent member 918 allows the observer to see outside light through it. The image light guiding member 916 also has a function of allowing the observer to see outside light through it, in addition to the function of guiding the image light. Note that the head mounted display 900 may be configured not to allow the observer to see outside light through it.

[0111] The electronic device according to the present embodiment is not limited to a head-mounted display as long as it has the display device according to the present embodiment. The electronic device according to the present embodiment may be an EVF (Electronic View Finder), a projector, a personal digital assistant, a wristwatch, or an in-vehicle head-up display.

[0112] The above-described embodiment and modifications are merely examples, and the present invention is not limited to these. For example, the embodiments and modifications can be appropriately combined.

[0113] The present invention includes configurations that are substantially the same as the configurations described in the embodiments, for example, configurations with the same functions, methods, and results, or configurations with the same purpose and effects. The present invention also includes configurations in which non-essential parts of the configurations described in the embodiments are replaced. The present invention also includes configurations that achieve the same effects as the configurations described in the embodiments, or configurations that can achieve the same purpose. The present invention also includes configurations in which publicly known technology is added to the configurations described in the embodiments.

[0114] The following can be derived from the above-described embodiment and modifications.

[0115] One aspect of the display device is A plurality of pixels are included. Each of the plurality of pixels is a first sub-pixel having a first light-emitting region, a first pixel electrode, and a first pixel circuit that controls light emission in the first light-emitting region, and emitting a first color light; a second sub-pixel having a second light-emitting region, a second pixel electrode, and a second pixel circuit that controls light emission in the second light-emitting region, the second sub-pixel emitting a second color light different from the first color light; a third sub-pixel including a third light-emitting region, a third pixel electrode, and a third pixel circuit that controls light emission in the third light-emitting region, and that emits a third color light different from the first color light and the second color light; having In each of the plurality of pixels, the first sub-pixel, the second sub-pixel, and the third sub-pixel are adjacent to each other, When viewed from a first direction, the first light-emitting region overlaps with the second light-emitting region, When viewed from a second direction perpendicular to the first direction, the third light-emitting region overlaps with the first light-emitting region and the second light-emitting region, When viewed from a third direction perpendicular to the first direction and the second direction, the first light-emitting region has a shape having a first notch on an opposite side to the second light-emitting region, The second light-emitting region has a shape having a second notch on an opposite side to the first light-emitting region, the first pixel electrode and the first pixel circuit are electrically connected to each other via a first contact hole formed in an insulating layer provided between the first pixel electrode and the first pixel circuit; the second pixel electrode and the second pixel circuit are electrically connected to each other via a second contact hole formed in an insulating layer provided between the second pixel electrode and the second pixel circuit; the third pixel electrode and the third pixel circuit are electrically connected to each other via a third contact hole formed in an insulating layer provided between the third pixel electrode and the third pixel circuit; At least one of the first contact hole and the third contact hole of an adjacent pixel among the plurality of pixels is provided in a region of the first cutout; The second contact hole is provided in the region of the second cutout.

[0116] According to this display device, the color lights emitted from the first, second, and third sub-pixels can be easily mixed together, thereby improving image quality.

[0117] In one embodiment of the display device, The first contact hole and the third contact hole of an adjacent pixel of the plurality of pixels may be provided in a region of the first cutout.

[0118] According to this display device, it is not necessary to form the third light-emitting region into a shape having a notch in order to provide the third contact hole, which makes it possible to increase the area of ​​the third light-emitting region.

[0119] In one embodiment of the display device, In each of the plurality of pixels, the third light-emitting region has a shape having a third notch on an opposite side to the second light-emitting region in the plan view, The first contact hole is provided in the region of the first cutout, The third contact hole may be provided in the region of the third cutout.

[0120] According to this display device, it is possible to reduce the difference in area between the first light-emitting region, the second light-emitting region, and the third light-emitting region.

[0121] In one embodiment of the display device, In each of the plurality of pixels, the first light-emitting region has a shape including a fourth notch on a side opposite to the third light-emitting region and on a side of the second sub-pixel in the plan view, the third contact hole of an adjacent pixel among the plurality of pixels is provided in the first cutout region; The first contact hole may be provided in the region of the fourth cutout.

[0122] According to this display device, the area of ​​the first cutout region can be reduced.

[0123] In one embodiment of the display device, the first light-emitting region, the second light-emitting region, and the third light-emitting region each have a shape having a longitudinal direction in the first direction, In the plurality of pixels, the first light-emitting region, the second light-emitting region, and the third light-emitting region may be aligned in the first direction.

[0124] According to this display device, color change due to viewing angle can be reduced.

[0125] In one embodiment of the display device, The first cutout region may have a shape having a longitudinal direction in the first direction.

[0126] According to this display device, the width of the narrow region of the first light-emitting region can be increased.

[0127] In one embodiment of the display device, In each of the multiple pixels, the distance between the first light-emitting region and the second light-emitting region, the distance between the second light-emitting region and the third light-emitting region, and the distance between the first light-emitting region and the third light-emitting region may be the same as each other.

[0128] According to this display device, the color lights emitted from the first light-emitting region, the second light-emitting region, and the third light-emitting region can be mixed with good uniformity.

[0129] One aspect of the electronic device is The display device has one aspect of the above. [Explanation of symbols]

[0130] 2a...write control transistor, 2b...drive transistor, 2c...compensation transistor, 2d...light-emission control transistor, 3...storage capacitance, 3a, 3b...capacitor electrode, 4a...scanning line, 4b...data line, 5a...first control line, 5b...second control line, 6a...first power supply wiring, 6b...second power supply wiring, 7...capacitor element, 10...substrate, 11...impurity region, 12...gate insulating layer, 13...gate electrode, 14, 15, 16, 17...interlayer insulating layer, 18...wiring layer, 20... Reflective layer, 30...insulating layer, 40...organic EL element, 41...pixel electrode, 41R...first pixel electrode, 41G...second pixel electrode, 41B...third pixel electrode, 42...light-emitting functional layer, 43...common electrode, 44...light-emitting region, 44R...first light-emitting region, 44G...second light-emitting region, 44B...third light-emitting region, 45R...first notch, 45G...second notch, 45B...third notch, 46R...fourth notch, 47...narrowing region, 50...contact, 50R...first pixel contact, 50G ...second pixel contact, 50B...third pixel contact, 52...contact hole, 52R...first contact hole, 52G...second contact hole, 52B...third contact hole, 60...insulating layer, 62...opening, 70...sealing layer, 80...colored layer, 90...opposite substrate, 92...adhesive layer, 100...display device, 110...display panel, 112...display area, 114...pixel circuit, 114R...first pixel circuit, 114G...second pixel circuit, 114B...third pixel circuit , 120...FPC, 122...driver IC, 124...external connection terminal, 130...frame, 132...window frame, 200, 300...display device, 900...head mounted display, 910a...first display section, 910b...second display section, 911...image forming device, 912...external member, 914...projection device, 915...light guide device, 916...image light guide member, 917...reflective layer, 918...transparent member, 920...frame, 930a...first temple, 930b...second temple

Claims

1. A plurality of pixels are included. Each of the plurality of pixels is a first sub-pixel having a first light-emitting region, a first pixel electrode, and a first pixel circuit that controls light emission in the first light-emitting region, the first sub-pixel emitting a first color light; a second sub-pixel having a second light-emitting region, a second pixel electrode, and a second pixel circuit that controls light emission in the second light-emitting region, the second sub-pixel emitting a second color light different from the first color light; a third sub-pixel including a third light-emitting region, a third pixel electrode, and a third pixel circuit that controls light emission in the third light-emitting region, the third sub-pixel emitting a third color light different from the first color light and the second color light; having In each of the plurality of pixels, the first sub-pixel, the second sub-pixel, and the third sub-pixel are adjacent to each other, When viewed from a first direction, the first light-emitting region overlaps with the second light-emitting region, When viewed from a second direction perpendicular to the first direction, the third light-emitting region overlaps with the first light-emitting region and the second light-emitting region, When viewed from a third direction perpendicular to the first direction and the second direction, the first light-emitting region has a shape having a first notch on an opposite side to the second light-emitting region, The second light-emitting region has a shape having a second notch on an opposite side to the first light-emitting region, the first pixel electrode and the first pixel circuit are electrically connected to each other via a first contact hole formed in an insulating layer provided between the first pixel electrode and the first pixel circuit; the second pixel electrode and the second pixel circuit are electrically connected to each other via a second contact hole formed in an insulating layer provided between the second pixel electrode and the second pixel circuit; the third pixel electrode and the third pixel circuit are electrically connected to each other via a third contact hole formed in an insulating layer provided between the third pixel electrode and the third pixel circuit; At least one of the first contact hole and the third contact hole of an adjacent pixel among the plurality of pixels is provided in a region of the first cutout; The display device, wherein the second contact hole is provided in the region of the second cutout.

2. In claim 1, A display device, wherein the first contact hole and the third contact hole of an adjacent pixel of the plurality of pixels are provided in a region of the first cutout.

3. In claim 1, In each of the plurality of pixels, the third light-emitting region has a shape having a third notch on an opposite side to the second light-emitting region in the plan view, The first contact hole is provided in the region of the first cutout, The display device, wherein the third contact hole is provided in the region of the third cutout.

4. In claim 1, In each of the plurality of pixels, in the plan view, the first light-emitting region has a shape including a fourth notch on a side opposite to the third light-emitting region and on a side of the second sub-pixel, the third contact hole of an adjacent pixel among the plurality of pixels is provided in a region of the first cutout; The display device, wherein the first contact hole is provided in the region of the fourth cutout.

5. In claim 1, the first light-emitting region, the second light-emitting region, and the third light-emitting region each have a shape having a longitudinal direction in the first direction, A display device, wherein in the plurality of pixels, the first light-emitting region, the second light-emitting region, and the third light-emitting region are aligned in the first direction.

6. In claim 5, A display device, wherein the first cutout has a shape having a longitudinal direction in the first direction.

7. In claim 1, A display device, wherein in each of the plurality of pixels, the distance between the first light-emitting region and the second light-emitting region, the distance between the second light-emitting region and the third light-emitting region, and the distance between the first light-emitting region and the third light-emitting region are the same as each other.

8. 8. An electronic device comprising the display device according to claim 1.