WO2023176718A1 - 表示装置 - Google Patents

表示装置 Download PDF

Info

Publication number
WO2023176718A1
WO2023176718A1 PCT/JP2023/009274 JP2023009274W WO2023176718A1 WO 2023176718 A1 WO2023176718 A1 WO 2023176718A1 JP 2023009274 W JP2023009274 W JP 2023009274W WO 2023176718 A1 WO2023176718 A1 WO 2023176718A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
sub
display device
pixels
organic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/009274
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
直也 笠原
智明 澤部
昌也 小倉
健一 青柳
利章 白岩
英輔 根岸
滉大 立島
啓之 伊藤
純 吉田
孝義 加藤
寛 西川
大輔 濱下
朋芳 市川
宏史 藤巻
啓示 大島
雅貴 杉安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Semiconductor Solutions Corp
Original Assignee
Sony Semiconductor Solutions Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Semiconductor Solutions Corp filed Critical Sony Semiconductor Solutions Corp
Priority to JP2024508120A priority Critical patent/JPWO2023176718A1/ja
Priority to KR1020247033123A priority patent/KR20240159594A/ko
Priority to CN202380026491.4A priority patent/CN118974804A/zh
Priority to US18/837,731 priority patent/US20250160132A1/en
Priority to EP23770673.4A priority patent/EP4495920A4/en
Publication of WO2023176718A1 publication Critical patent/WO2023176718A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/17—Passive-matrix OLED displays
    • H10K59/173—Passive-matrix OLED displays comprising banks or shadow masks
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8051—Anodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H10K59/80521—Cathodes characterised by their shape
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/875—Arrangements for extracting light from the devices
    • H10K59/876—Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/875—Arrangements for extracting light from the devices
    • H10K59/878—Arrangements for extracting light from the devices comprising reflective means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/875—Arrangements for extracting light from the devices
    • H10K59/879—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses

Definitions

  • the present technology relates to a display device. Specifically, the present invention relates to a display device using a light emitting element.
  • organic EL Electro Luminescence
  • a first electrode is arranged for each subpixel, and an organic EL film and a second electrode are laminated on top of the first electrode, so that the organic EL film and the second electrode are connected to all subpixels inside the display area and outside the display area.
  • a display device with a similar structure has been proposed (for example, see Patent Document 1).
  • the above-mentioned conventional technology attempts to prevent the organic EL film from cracking or peeling during the patterning process by connecting the organic EL film inside and outside the display area.
  • it is difficult to suppress leakage current through the organic EL film.
  • This technology was created in view of this situation, and its purpose is to suppress leakage current in a display device provided with an organic EL film.
  • the present technology has been developed to solve the above-mentioned problems, and a first aspect thereof is that a first electrode and a second electrode with different polarities and a predetermined number of electrodes as viewed from a direction perpendicular to a predetermined plane.
  • a first electrode and a connecting portion are formed between a subpixel and a connecting portion that connects adjacent subpixels to each other in the interpixel region between the predetermined number of subpixels, and when viewed from a direction parallel to the predetermined plane, the first electrode and
  • the display device includes an organic EL film formed between second electrodes. This brings about the effect of suppressing leakage current.
  • connection portion may be a part of the inter-pixel region. This brings about the effect of suppressing leakage current.
  • the first electrode is formed in a predetermined area surrounding each subpixel for each subpixel when viewed from the vertical direction
  • the second electrode is formed in a predetermined area surrounding the subpixel when viewed from the vertical direction.
  • the connection portion may be formed between the predetermined number of sub-pixels and the connection portion. This brings about the effect that the subpixels are individually driven.
  • the first aspect further includes a protective film that covers a pixel array portion in which the predetermined number of sub-pixels are arranged, and a thickness of a predetermined portion of the protective film that covers the predetermined number of sub-pixels.
  • the film thickness may be larger than the film thickness of a portion that does not correspond to the above-mentioned predetermined portion. This brings about the effect of improving light extraction efficiency.
  • connection portion may be formed in a portion of the inter-pixel region that does not correspond to a rectangular region. This brings about the effect of suppressing leakage current.
  • the predetermined number of sub-pixels may be arranged in a pixel array section, and the width of the second electrode may be a value corresponding to a distance from the center of the pixel array section. good. This brings about the effect of suppressing shading.
  • connection portion is connected to one of a pair of adjacent subpixels among the predetermined number of subpixels, and the other end of the connection portion is connected to one of the pair of subpixels adjacent to each other among the predetermined number of subpixels. and the width of the one end may be different from the width of the other end.
  • the predetermined number of sub-pixels may be arranged within a pixel array section, and the width may be a value corresponding to a distance from the center of the pixel array section. This brings about the effect that principal ray control is performed.
  • the connecting portion includes first and second rectangular connecting portions, and a pair of adjacent sub-pixels among the predetermined number of sub-pixels are connected to the first and second connecting portions. They may be connected by a connecting part. This provides the effect of preventing connection failures.
  • connection portion may draw an arc. This provides the effect of preventing connection failures.
  • the width at the center of the connection part may be wider than the width at both ends of the connection part. This brings about the effect of improving light extraction efficiency.
  • an opening region where the organic EL film is not formed may be provided in the center of the connection portion. This brings about the effect of improving light extraction efficiency.
  • the organic EL film is arranged between the predetermined number of sub-pixels, the connecting portion, and a bridge region connecting the connecting portions in the inter-pixel region when viewed from the vertical direction. may be formed. This brings about the effect of suppressing an increase in the resistance of the cathode electrode.
  • the shape of the sub-pixel may be a composite figure of a core portion and a plurality of convex portions when viewed from the perpendicular direction. This brings about the effect of improving light extraction efficiency.
  • the shape of the organic EL film when viewed from the vertical direction may have a predetermined number of bent portions. This brings about the effect of improving light extraction efficiency.
  • unevenness may be formed on the side wall of the sub-pixel when viewed from a direction parallel to the predetermined plane. This brings about the effect of improving light extraction efficiency.
  • the predetermined number of sub-pixels may be arranged in a delta arrangement. This brings about the effect that leakage current is suppressed in the delta array display device.
  • the predetermined number of sub-pixels may be arranged in a square array. This brings about the effect of suppressing leakage current in a square array display device.
  • the predetermined number of sub-pixels may be arranged in stripes. This brings about the effect that leakage current is suppressed in a striped display device.
  • the organic EL film when viewed from the vertical direction, is formed on a frame surrounding the predetermined number of the sub-pixels, the predetermined number of the sub-pixels, and the connection portion, and is arranged in the vertical direction.
  • a plurality of openings are formed in the organic EL film when viewed from the direction, and the plurality of openings include a first opening whose at least one side is in contact with the frame and a first opening which does not correspond to the first opening. 2 opening, and the smallest angle between the two sides of the first opening does not have to exceed the smallest angle between the two sides of the second opening. . This brings about the effect of suppressing deterioration of the frame and pixels surrounding the frame.
  • FIG. 1 is a block diagram illustrating a configuration example of a display device according to a first embodiment of the present technology.
  • FIG. 3 is an example of a plan view and a cross-sectional view of a pixel array section in the first embodiment of the present technology.
  • FIG. 2 is an example of a plan view of a pixel array section according to the first embodiment of the present technology and a cross-sectional view taken along a line segment including a connection section.
  • FIG. 7 is an example of a plan view and a cross-sectional view of a pixel array section in a comparative example.
  • FIG. 3 is a diagram for explaining the manufacturing process up to photolithography in the first embodiment of the present technology.
  • FIG. 3 is a diagram for explaining the manufacturing process up to photolithography in the first embodiment of the present technology.
  • FIG. 3 is a diagram for explaining the manufacturing process up to the formation of a protective film in the first embodiment of the present technology. It is an example of the pixel array part of the delta arrangement in which sub-pixels arranged in the diagonal direction are connected in the first embodiment of the present technology. It is an example of the pixel array part of the delta arrangement in which sub-pixels arranged in the horizontal direction are connected in the first embodiment of the present technology. It is an example of the pixel array part of the delta arrangement in which sub-pixels arranged in the vertical direction are connected to each other in the first embodiment of the present technology. It is an example of the pixel array part of the delta arrangement in which sub-pixels arranged in the horizontal direction, vertical direction, and diagonal direction are connected in the first embodiment of the present technology.
  • pixel array part of the delta arrangement in which sub-pixels arranged in the horizontal direction and the vertical direction are connected in the first embodiment of the present technology. It is an example of the pixel array part of the square arrangement in which sub-pixels arranged in the diagonal direction are connected in the first embodiment of the present technology.
  • 1 is an example of a square pixel array section in which sub-pixels arranged in the vertical direction are connected to each other in the first embodiment of the present technology. It is an example of the pixel array part of the square arrangement in which sub-pixels arranged in the horizontal direction are connected in the 1st embodiment of this technology.
  • 1 is an example of a square pixel array section in which sub-pixels arranged in the horizontal and vertical directions are connected to each other in the first embodiment of the present technology.
  • 1 is an example of a square pixel array section in which sub-pixels arranged in the horizontal direction, vertical direction, and diagonal direction are connected to each other in the first embodiment of the present technology.
  • It is an example of the pixel array part of the stripe arrangement in which sub-pixels arranged in the vertical direction are connected to each other in the first embodiment of the present technology.
  • FIG. 1 is an example of a pixel array section in a stripe arrangement in which sub-pixels arranged in the horizontal and vertical directions are connected to each other in the first embodiment of the present technology. It is an example of the pixel array part of the stripe arrangement in which the sub-pixels arranged in the horizontal direction and the vertical direction are connected to each other, and the connection parts arranged in the horizontal direction are connected to each other in the first embodiment of the present technology.
  • FIG. 2 is an example of a plan view of a pixel array section in which connection sections are formed in areas other than rectangular sections according to the first embodiment of the present technology.
  • FIG. 7 is an example of a plan view of a pixel array section in a second embodiment of the present technology.
  • FIG. 7 is an example of a plan view of a delta array pixel array section in a third embodiment of the present technology.
  • FIG. 7 is an example of a plan view of a pixel array section in which the width is changed depending on the distance from the center in a delta arrangement according to the third embodiment of the present technology.
  • FIG. 7 is an example of a plan view of a square pixel array section in a third embodiment of the present technology.
  • FIG. 11 is an example of a plan view of a pixel array section in a square arrangement with a width varying depending on the distance from the center, according to a third embodiment of the present technology.
  • FIG. 7 is an example of a plan view of a pixel array section in which the connection section is T-shaped in the third embodiment of the present technology. It is an example of the top view of the pixel array part in the 4th embodiment of this technique. It is an example of the top view of the pixel array part in the modification of the 4th embodiment of this technique. It is another example of the top view of the pixel array part in the modification of the 4th embodiment of this technique. It is an example of the top view of the pixel array part in the 5th embodiment of this technique.
  • FIG. 12 is an example of a cross-sectional view of the pixel array section taken along a line including a connection section in a first modification of the fifth embodiment of the present technology. It is an example of the top view of the pixel array part in the 2nd modification of the 5th embodiment of this technique. It is an example of the cross-sectional view of the pixel array part in the 2nd modification of the 5th Embodiment of this technique.
  • FIG. 7 is an example of a plan view of a pixel array section in a sixth embodiment of the present technology.
  • FIG. 7 is an example of a cross-sectional view of a pixel array section in a sixth embodiment of the present technology. It is an example of the cross-sectional view when cutting
  • FIG. 12 is a diagram showing an example of the shape of a subpixel with four convex portions in a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of the shape of a subpixel with five convex portions in a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of the shape of a subpixel having six convex portions in a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of the shape of a subpixel having eight convex portions in a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of a pixel array section in which four or five convex sub-pixels are arranged in stripes according to a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of a pixel array section in which six or eight convex portions are arranged in stripes according to a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of the shape of a subpixel having six convex portions in a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of a pixel array section in which four or five convex portions are arranged in a delta arrangement according to a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of a pixel array section in which six or eight convex portions are arranged in a delta arrangement according to a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of a pixel array section in which four or five convex portions are arranged in a square array according to a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of a pixel array section in which six or eight convex portions are arranged in a square array according to a sixth embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of a pixel array section in which six or eight convex portions are arranged in a square array according to a sixth embodiment of the present technology.
  • FIG. 7 is a diagram showing a plan view of an organic EL film and a cross-sectional view of a pixel array section in a seventh embodiment of the present technology. It is a figure for explaining the manufacturing process up to photolithography in a 7th embodiment of this technique. It is a figure for explaining the manufacturing process up to film formation of a low refractive index film in a 7th embodiment of this technique. It is a figure which shows an example of the top view of the organic EL film in 7th Embodiment of this technique.
  • FIG. 7 is a diagram showing another example of a plan view of an organic EL film in the seventh embodiment of the present technology. It is a figure which shows an example of the cross-sectional view of the pixel array part in 7th Embodiment of this technique.
  • FIG. 12 is a diagram showing an example of a plan view of a pixel array section in which sub-pixels are arranged in stripes according to a seventh embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of a plan view of a pixel array section in which sub-pixels are arranged in a delta arrangement according to a seventh embodiment of the present technology.
  • FIG. 12 is a diagram showing an example of a plan view of a pixel array section in which sub-pixels are arranged in a square arrangement according to a seventh embodiment of the present technology.
  • FIG. 12 is a diagram showing another example of a plan view of a pixel array section in which sub-pixels are arranged in a square arrangement according to the seventh embodiment of the present technology.
  • FIG. 11 is a diagram illustrating an example of a method of arranging subpixels when cathode contact electrodes are arranged in an eighth embodiment of the present technology. It is a figure which shows an example of the cross-sectional view of the pixel array part in the 1st modification of the 8th Embodiment of this technique.
  • FIG. 7 is a diagram for explaining the manufacturing process up to the formation of a textured film in a first modified example of the eighth embodiment of the present technology. It is a figure which shows an example of the cross-sectional view of the pixel array part in the 2nd modification of the 8th Embodiment of this technique. It is a figure for explaining the manufacturing process in the 2nd modification of the 8th embodiment of this technique. It is a figure which shows an example of the cross-sectional view of the pixel array part in the 2nd modification of the 8th Embodiment of this technique, and the position of the unevenness
  • FIG. 2 is a plan view showing an example of the layout of an organic EL film in the first embodiment of the present technology.
  • FIG. 3 is an example of a perspective view of an opening in the first embodiment of the present technology.
  • FIG. 9 is a plan view showing an example of the layout of an organic EL film in a ninth embodiment of the present technology.
  • FIG. 9 is a plan view showing an example of the layout of an organic EL film in a first modification of the ninth embodiment of the present technology.
  • FIG. 9 is a plan view showing an example of the layout of an organic EL film in a second modification of the ninth embodiment of the present technology.
  • FIG. 12 is a plan view showing an example of the layout of an organic EL film in a third modification of the ninth embodiment of the present technology.
  • FIG. 6 is a conceptual diagram for explaining the relationship between a normal line LN passing through the center of the light emitting section, a normal line LN' passing through the center of the lens member, and a normal line LN'' passing through the center of the wavelength selection section.
  • FIG. 6 is a conceptual diagram for explaining the relationship between a normal line LN passing through the center of the light emitting section, a normal line LN' passing through the center of the lens member, and a normal line LN'' passing through the center of the wavelength selection section.
  • FIG. 6 is a conceptual diagram for explaining the relationship between a normal line LN passing through the center of the light emitting section, a normal line LN' passing through the center of the lens member, and a normal line LN'' passing through the center of the wavelength selection section.
  • FIG. 6 is a conceptual diagram for explaining the relationship between a normal line LN passing through the center of the light emitting section, a normal line LN' passing through the center of the lens member, and a normal line LN'' passing through the center of the wavelength selection section.
  • FIG. 6 is a conceptual diagram for explaining the relationship between a normal line LN passing through the center of the light emitting section, a normal line LN' passing through the center of the lens member, and a normal line LN'' passing through the center of the wavelength selection section.
  • FIG. 3 is a schematic cross-sectional view for explaining a first example and a second example of a resonator structure.
  • FIG. 7 is a schematic cross-sectional view for explaining a third example and a fourth example of a resonator structure. It is a typical sectional view for explaining the 5th example and the 6th example of a resonator structure. It is a typical sectional view for explaining the 7th example of a resonator structure.
  • FIG. 1 is a front view and a rear view showing an example of the appearance of a digital still camera.
  • FIG. FIG. 1 is a perspective view of an example of the appearance of a head-mounted display.
  • FIG. 1 is a perspective view showing an example of the appearance of a television device.
  • FIG. 2 is an external view of a see-through head-mounted display. 1 is an external view showing an example of an electronic device to which a display unit according to an embodiment of the present disclosure can be applied.
  • FIG. 2 is a diagram showing the inside of the vehicle from the rear to the front of the vehicle, and a diagram showing the inside of the vehicle from diagonally backward to diagonally forward.
  • First embodiment (example where organic EL film is left in the connection part) 2.
  • Second embodiment (example in which the organic EL film is left at the connection part and the width of the cathode electrode is adjusted) 3.
  • Third embodiment (example in which the organic EL film is left in the connection part and the width of the connection part is adjusted) 4.
  • Fourth embodiment (example where the organic EL film is left in the connection part and the number of connection parts is increased) 5.
  • Fifth embodiment (an example in which the organic EL film is left in the connection part and the width at the center of the connection part is widened) 6.
  • FIG. 1 is a block diagram illustrating a configuration example of a display device 100 according to a first embodiment of the present technology.
  • This display device 100 includes a control circuit 111, an H driver 112, a V driver 113, and a pixel array section 120.
  • As the display device 100 a display integrated with an electronic device such as a smartphone or a personal computer, a monitor device separated from the electronic device, etc. are assumed.
  • a plurality of pixels 200 are arranged within the pixel array section 120.
  • Each pixel 200 includes a plurality of subpixels that emit light of different colors.
  • subpixels 201, 202, and 203 that emit R, G, and B light are arranged for each pixel 200.
  • Each of the subpixels 201, 202, and 203 has a hexagonal shape, and these three are arranged in a triangle, for example. That is, the subpixels are arranged in a delta arrangement. Note that the shape and arrangement of the subpixels are not limited to hexagonal or delta arrangement.
  • the control circuit 111 controls the drive timing of each of the H driver 112 and the V driver 113 based on image data.
  • the H driver 112 drives subpixels column by column.
  • the V driver 113 drives subpixels row by row.
  • FIG. 2 is an example of a plan view and a cross-sectional view of the pixel array section 120 in the first embodiment of the present technology.
  • a is an example of a plan view of the pixel array section 120
  • b in the figure is an example of a cross-sectional view of the pixel array section 120.
  • a plurality of sub-pixels such as sub-pixel 201 are arranged on a predetermined plane.
  • an axis perpendicular to the plane will be referred to as the "Z-axis”
  • a predetermined axis parallel to the plane will be referred to as the "X-axis”.
  • the axis perpendicular to the X-axis and the Z-axis is referred to as the "Y-axis.”
  • the X-axis direction can also be called a "horizontal direction.”
  • the Y-axis direction can also be referred to as the "vertical direction.”
  • each of the subpixels is, for example, hexagonal.
  • the area surrounded by the dashed line a in the figure indicates the sub-pixel 201.
  • the plurality of sub-pixels are arranged at regular intervals.
  • the area between sub-pixels is hereinafter referred to as an "inter-pixel area.”
  • the area consisting of the diagonal line part and the white part corresponds to the inter-pixel area.
  • the pixel array section 120 includes a substrate 240, protective films 211 and 212, a cathode electrode 221, an organic EL film 222, a plurality of anode electrodes 223, and an insulating film 230.
  • an anode electrode 223 is formed for each subpixel.
  • the direction from the substrate 240 to the anode electrode 223 will be referred to as the "up" direction.
  • Each of the anode electrodes 223 is separated (in other words, insulated) from each other by an insulating film 230 formed between them.
  • the shaded portion corresponds to the anode electrode 223, and the white portion corresponds to the insulating film 230.
  • An organic EL film 222 is formed above the anode electrode 223, and a cathode electrode 221 is formed above it. Further, a protective film 212 is formed on the cathode electrode 221, and a protective film 211 is formed on the protective film 212 and the upper part between the pixels to cover them. Although the protective films 211 and 212 are formed separately due to the manufacturing process described later, they are integrated, and can be treated as the protective film 210 together.
  • the thickness of the portion of the protective film 210 that covers the sub-pixel is greater than the thickness of the other portion.
  • the protective film 210 is raised at the subpixel portion.
  • the upper and side surfaces of the protective film 210 are filled with a low refractive index film (not shown). Therefore, the light emitted by the subpixel is reflected upward from the side surface of the raised portion (in other words, the surface of the protective film).
  • the thick arrow a in the figure indicates the optical path of light emitted by the subpixel.
  • the protective films 211 and 212 and the cathode electrode 221 are omitted in order to clearly show the planar shape of the organic EL film 222.
  • the gray portion a in the figure indicates the organic EL film 222.
  • the organic EL film 222 is formed in each of the plurality of subpixels and in a portion of the interpixel region that connects adjacent subpixels.
  • the portion of the inter-pixel region where the organic EL film 222 is formed will hereinafter be referred to as a “connection portion”.
  • the dotted rectangular portion surrounded by the coordinates (X2, Y1), (X6, Y1), (X2, Y3), and (X6, Y3) of a in the figure corresponds to the connection portion.
  • the anode electrode 223 is formed in a predetermined area surrounding the subpixel when viewed from the Z-axis direction.
  • the outer periphery of the shaded portion a in the figure corresponds to the outer periphery of the anode electrode 223.
  • the planar shape of the cathode electrode 221 is similar to that of the organic EL film 222.
  • the end of the insulating film 230 reaches the end of the anode electrode 223 and swells by the thickness of the electrode.
  • a hexagon formed by a dashed-dotted line passing through coordinates X4 and the like indicates the outer periphery of the raised portion of the insulating film 230. In subsequent figures, this one-dot chain line will be omitted.
  • anode electrode 223 is an example of the first electrode described in the claims
  • the cathode electrode 221 is an example of the second electrode described in the claims.
  • FIG. 3 is an example of a plan view of the pixel array section 120 according to the first embodiment of the present technology and a cross-sectional view taken along a line segment including the connection section.
  • a in the figure is an example of a plan view of the pixel array section 120.
  • b in the figure shows a cross-sectional view taken along a line segment from the coordinates (X1, Y2) of a in the figure to (X7, Y2). It is assumed that this line segment includes a connection between subpixels.
  • an organic EL film 222 and a cathode electrode 221 are also formed at the connection portion, and adjacent sub-pixels are connected to each other by the organic EL film 222 and the cathode electrode 221.
  • the organic EL film 222 connects each of the plurality of subpixels and the region between adjacent subpixels in the interpixel region between them when viewed from the Z-axis direction. (i.e., a connecting portion). Further, the organic EL film 222 is formed between the cathode electrode 221 and the anode electrode 223 when viewed from the Y-axis direction or the X-axis direction. Note that the cathode electrode 221 and the anode electrode 223 are examples of the first electrode and the second electrode described in the claims.
  • the anode electrode 223 is formed in a predetermined area surrounding the sub-pixel for each sub-pixel when viewed from the Z-axis direction. Similar to the organic EL film 222, the cathode electrode 221 is formed at each of the plurality of subpixels and the connection portion when viewed from the Z-axis direction. Further, the thickness of the portion of the protective film 210 (protective films 211 and 212) that covers the sub-pixel is greater than the thickness of the other portion.
  • a display device 100 having a structure in which the organic EL film 222 is formed over the entire inter-pixel region and the protective film is not raised in the sub-pixel portion is assumed.
  • FIG. 4 is an example of a plan view and a cross-sectional view of the pixel array section 120 in a comparative example.
  • a is an example of a plan view of the pixel array section 120
  • b in the same figure is an example of a plan view of the pixel array section 120
  • b in the same figure is an example of a plan view of the pixel array section 120.
  • This is an example of a cross-sectional view.
  • the organic EL film 222 is formed in each of the subpixels and the entire interpixel region between them. The same applies to the cathode electrode 221. Further, it is assumed that the thickness of the protective film 211 is almost the same between the upper part of the sub-pixel and the upper part of the inter-pixel region.
  • the comparative example in which the organic EL film 222 is formed in the entire region leakage current can be made smaller. Note that in a configuration in which the organic EL film 222 is not formed in the entire inter-pixel region, the organic EL film 222 and the cathode electrode 221 on the sub-pixels are isolated, and it becomes impossible to supply power to each of the sub-pixels. In order to prevent this, in FIG. 2, the organic EL film 222 is left at the connection portion.
  • the protective film 211 since the protective film 211 is not raised above the subpixel, light emitted by the subpixel may be reflected downward on the surface of the protective film.
  • the thick arrow in the figure indicates the optical path of light reflected on the surface of the protective film.
  • FIG. 5 is a diagram for explaining the manufacturing process up to photolithography in the first embodiment of the present technology.
  • a in the figure shows a cross-sectional view of the pixel array section 120 in which the anode electrode 223 and the insulating film 230 are formed.
  • b in the same figure shows a cross-sectional view of the pixel array section 120 in which the organic EL film 222, the cathode electrode 221, and the protective film 212 are formed.
  • c shows a cross-sectional view of the pixel array section 120 when photolithography is performed.
  • the manufacturing system forms an anode electrode 223 for each subpixel on a substrate 240, and forms an insulating film 230 between them. Then, as illustrated in b in the figure, the manufacturing system forms an organic EL film 222 and a cathode electrode 221, and forms a protective film 212 on the cathode electrode 221. Subsequently, the manufacturing system places photoresist 250 on top of each sub-pixel and performs photolithography.
  • FIG. 6 is a diagram for explaining the manufacturing process up to the formation of the protective film 211 in the first embodiment of the present technology.
  • a shows a cross-sectional view of the pixel array section 120 after photolithography.
  • b in the figure shows a cross-sectional view of the pixel array section 120 on which the protective film 211 is formed.
  • the protective film 212 is removed from the rest of the sub-pixel by photolithography, leaving the upper part of the sub-pixel. Then, as illustrated in b in the figure, the manufacturing system forms the protective film 211. As a result, the pixel array section 120 having the structure illustrated in FIG. 2 is obtained.
  • sub-pixels arranged diagonally and horizontally (X-axis direction) are connected to each other by the organic EL film 222, but the structure is not limited to this.
  • connection part in the vertical direction (Y-axis direction) to connect the sub-pixels arranged in the vertical direction.
  • a vertical connection section may be added to connect subpixels arranged in the horizontal direction, vertical direction, and diagonal direction.
  • the subpixels are arranged in a delta arrangement, but the arrangement is not limited to this.
  • the sub-pixels may be square in shape and arranged in a square arrangement.
  • connecting portions can be provided in the diagonal direction to connect the sub-pixels arranged in the diagonal direction.
  • connecting portions may be provided in the vertical direction to connect the sub-pixels arranged in the vertical direction.
  • connecting portions can be provided in the horizontal direction to connect the sub-pixels arranged in the horizontal direction.
  • connecting portions can be provided in the horizontal and vertical directions to connect sub-pixels arranged in the horizontal and vertical directions.
  • connecting portions can be provided in the horizontal direction, vertical direction, and diagonal direction to connect sub-pixels arranged in the horizontal direction, vertical direction, and diagonal direction.
  • the shape of the subpixels can be made rectangular and arranged in stripes.
  • a connecting portion can be provided in the vertical direction to connect the sub-pixels arranged in the vertical direction.
  • a connecting portion may be provided in the horizontal direction to connect the sub-pixels arranged in the horizontal direction.
  • sub-pixels arranged in the vertical direction can be connected to each other, and connection parts arranged in the horizontal direction can also be connected to each other.
  • connecting portions may be provided in the horizontal and vertical directions to connect sub-pixels arranged in the horizontal and vertical directions.
  • sub-pixels arranged in the horizontal and vertical directions can be connected to each other, and connection parts arranged in the horizontal direction can be connected to each other.
  • an organic EL film 222 may be formed using a portion other than a rectangular portion of the interpixel region between adjacent subpixels as a connection portion.
  • the Y-shaped portion surrounded by thick dotted lines corresponds to the connection portion.
  • part of the anode electrode 223 and part of the insulating film 230 are arranged in the rectangular part.
  • the organic EL film 222 is formed in each of the sub-pixels and the connecting portion of the inter-pixel region, the organic EL film 222 is formed in the entire inter-pixel region.
  • the leakage current can be made smaller than in the case where .
  • the thickness of the portion of the protective film 210 that covers the sub-pixel is made larger than the thickness of the other portion, the light extraction efficiency can be improved.
  • each cathode electrode 221 of the connection part in the pixel array section 120 is constant, but with this configuration, it is difficult to suppress shading.
  • the display device 100 in this second embodiment differs from the first embodiment in that the width of the cathode electrode 221 is changed depending on the distance from the center.
  • FIG. 23 is an example of a plan view of the pixel array section 120 in the second embodiment of the present technology.
  • the pixel array section 120 of the second embodiment differs from the first embodiment in that the width of the cathode electrode 221 at the connection section between sub-pixels is smaller closer to the center.
  • a potential drop (in other words, an IR drop) occurs due to the resistance of the cathode electrode 221, and the potential difference between the anode and the cathode in each pixel decreases.
  • a cathode contact electrode (not shown) that supplies a potential to the cathode electrode 221 is arranged around the pixel array section 120. Therefore, the farther from the periphery, in other words, the closer to the center of the pixel array section 120, the smaller the potential difference becomes, the less current flows through the organic EL film 222, and the brightness decreases. As a result, brightness may become non-uniform and shading may occur.
  • the width of the cathode electrode 221 By making the width of the cathode electrode 221 smaller closer to the center, the side wall reflection area illustrated in FIG. 2 increases closer to the center, improving light extraction efficiency. Therefore, it is possible to suppress a decrease in brightness (ie, shading) in the central portion.
  • the width of the cathode electrode 221 at the connection portion is set to a value corresponding to the distance from the center, so that shading can be suppressed.
  • the width of the connecting portion of the organic EL film 222 is constant, but in this configuration, when controlling the principal ray, it is necessary to shift the position of the lens to change the direction of the principal ray. be.
  • the display device 100 according to the third embodiment differs from the first embodiment in that principal ray control is realized by setting the width of one end of the connection portion to a value different from the width of the other end.
  • FIG. 24 is an example of a plan view of the delta array pixel array section 120 in the third embodiment of the present technology.
  • the width of one end of the connection portion of the organic EL film 222 is different from the width of the other end. For example, of both ends of the connection section, one end farther from the center of the pixel array section 120 is wider than the other end. Further, the width gradually changes from one end to the other end.
  • the X coordinate of the center of the pixel array section 120 is X3.
  • the width of the left end of the coordinate X1, etc. is wider than the right end of the coordinate X2, etc.
  • the width of the left end of the coordinate X4, etc. is narrower than the right end of the coordinate X5, etc.
  • the width of the upper end of the connection portion is wider than the width of the lower end.
  • the width of the upper end of the connecting portion is narrower than that of the lower end.
  • connection portions above and below the center portion are omitted.
  • the width of the connecting portion it is preferable to change the width of the connecting portion depending on the distance from the center. For example, the farther from the center, the wider the connection portion may be.
  • the X coordinate of the central part be X5.
  • the width of the left end of the coordinate X1 of a certain connection part is wider than the right end of the coordinate X2.
  • the width of the left end of the coordinate X3 of the connection part closer to the center than the connection part is wider than the right end of the coordinate X4, and the width of the coordinates X3 and X4 is narrower than the width of the coordinates X1 and X2.
  • the width of the left end of the coordinate X6 of a certain connection part is narrower than the right end of the coordinate X7.
  • the width of the left end of the coordinate X8 of the connection part farther from the center than the connection part is narrower than the right end of the coordinate X9, and the width of the coordinates X8 and X9 is wider than the width of the coordinates X6 and X7.
  • connection portion 120 the closer to the top of the pixel array section 120, the wider the connection section becomes.
  • the width of one end of the connecting portion can be set to a different value from the width of the other end.
  • the width of the connecting portion can also be changed depending on the distance from the center in a square arrangement.
  • the connecting portion may be T-shaped.
  • FIG. 29 is an example of a plan view of the pixel array section 120 in the fourth embodiment of the present technology.
  • the pixel array section 120 of the fourth embodiment differs from the first embodiment in that, when focusing on a pair of adjacent sub-pixels, they are connected by two connection sections. In the figure, the part surrounded by the thick dotted line corresponds to the connection part.
  • a pair of adjacent subpixels can also be connected by three or more subpixels.
  • the connection between subpixels can be maintained using the remaining connection parts. This can prevent connection failures.
  • a pair of adjacent sub-pixels are connected by two connection parts, so that connection failure can be prevented.
  • the number of connections is increased to two or more, but even with this configuration, connection failures may not be sufficiently prevented.
  • the display device 100 according to this modification of the fourth embodiment differs from the fourth embodiment in that the sides of the connection portion draw an arc.
  • FIG. 30 is an example of a plan view of the pixel array section 120 in a modification of the fourth embodiment of the present technology.
  • the pixel array unit 120 of this modification of the fourth embodiment has one connection portion between a pair of adjacent subpixels, and the sides of the connection portion draw an arc. This is different from the fourth embodiment.
  • the side of the connection part has, for example, a fan arc shape.
  • the area surrounded by thick dotted lines in the figure corresponds to the connection part.
  • a Y-shaped connection part can be arranged near the apex of a hexagonal subpixel, and the sides can be made into an arc shape.
  • the area surrounded by thick dotted lines in the figure corresponds to the connection part.
  • connection failures can be prevented.
  • the connecting portion is rectangular, but with this configuration, it is difficult to further improve the light extraction efficiency.
  • the display device 100 according to the fifth embodiment differs from the first embodiment in that the width at the center of the connecting portion is increased to improve light extraction efficiency.
  • FIG. 32 is an example of a plan view of the pixel array section 120 in the fifth embodiment of the present technology.
  • the pixel array section 120 of this fifth embodiment differs from the first embodiment in that the width at the center of the connection section is wider than the width at both ends.
  • hexagonal subpixels 201 and 202 are arranged in the X-axis direction, the X coordinate of the right end of the subpixel 201 is X1, the X coordinate of the left end of the subpixel 202 on the right is X3, and the X coordinate in the middle Let be X2.
  • the X coordinates of the left and right ends of the connecting portion connecting these subpixels correspond to X1 and X3, and the X coordinate of the center corresponds to X2.
  • Y1 and Y3 be the lengths (that is, widths) in the Y-axis direction of the connecting portion between coordinates X1 and X3, and let Y2 be the width of the connecting portion between coordinates X2, then Y2 is larger than each of Y1 and Y3.
  • the width at the center By widening the width at the center, the area of reflection at the interface between the protective film 211 and the low refractive index film can be increased, and the light extraction efficiency is improved. Furthermore, by widening the width at the center of the connection part, the resistance of the connection part can be lowered, and voltage increases can be suppressed.
  • the width at the center of the connection portion is increased, so that the light extraction efficiency can be improved.
  • the width at the center of the connecting portion is widened, but with this configuration, it is difficult to further improve the light extraction efficiency.
  • the display device 100 according to the first modification of the fifth embodiment differs from the fifth embodiment in that the central portion of the connection portion is open.
  • FIG. 33 is an example of a plan view of the pixel array section 120 in the first modification of the fifth embodiment of the present technology.
  • the fifth embodiment is different from the first modification of the fifth embodiment in that a part of the central part of the connection part of the pixel array section 120 in the first modification of the fifth embodiment is open, and the organic EL film 222 is not formed in the opening area. different from.
  • a thick-lined rectangle from coordinates X2 to X3 indicates an opening area.
  • FIG. 34 shows a cross-sectional view taken along a line segment from coordinates (X1, Y2) to (X4, Y2) in FIG. 33.
  • the light extraction efficiency can be further improved.
  • the width at the center of the connecting portion is widened, but the connecting portions can also be connected to each other.
  • the display device 100 according to the second modification of the fifth embodiment differs from the fifth embodiment in that adjacent connection parts are connected to each other.
  • FIG. 35 is an example of a plan view of the pixel array section 120 in the second modification of the fifth embodiment of the present technology.
  • an organic EL film 222 is also formed in a region extending from the center of the connection portion along the sides of the subpixels, and adjacent subpixels are connected to each other. .
  • the area that connects the sub-pixels is hereinafter referred to as a "bridge section.”
  • a Y-shaped area surrounded by thick dotted lines at the same time indicates a bridge portion.
  • the organic EL film 222 is formed on hexagonal subpixels, connection portions that connect the subpixels, and bridge portions that connect the connection portions.
  • FIG. 36 shows a cross-sectional view taken along a line segment from coordinates (X1, Y2) to (X2, Y2) in FIG. 35.
  • the narrower the width of the connecting portion the greater the resistance of the cathode electrode 221 above it.
  • the connecting portions by connecting the connecting portions with a bridge portion, as illustrated in FIGS. 35 and 36, the increased resistance can be reduced.
  • the resistance of the cathode electrode 221 can be reduced by the same amount. This makes it possible to suppress an increase in the resistance of the cathode electrode 221 when the width of the connection portion is narrowed.
  • the organic EL film 222 is also formed on the bridge portion that connects the connecting portions, an increase in the resistance of the cathode electrode 221 is suppressed. can do.
  • the display device 100 according to the sixth embodiment differs from the first embodiment in that the side walls of the sub-pixels are uneven when viewed from the Z-axis direction to improve light extraction efficiency.
  • FIG. 37 is an example of a plan view of the pixel array section 120 in the sixth embodiment of the present technology.
  • a in the same figure is an example of a plan view seen from the Z-axis direction with the on-chip lens 261 and color filter 262 omitted, and b in the same figure is a plan view of three subpixels seen from the Z-axis direction. This is an example.
  • each of the sub-pixels such as the sub-pixel 201 is provided with unevenness on the side wall.
  • the portion of the subpixel that protrudes from the side surface will be referred to as a "convex portion,” and the portion other than the convex portion will be referred to as a "core portion.”
  • the planar shape of the subpixel viewed from the Z-axis direction can be expressed as a composite figure of a core portion and a plurality of convex portions.
  • the shape of the sub-pixel more specifically corresponds to the respective shapes of the organic EL film 222, the cathode electrode 221, and the protective film 211 excluding the connection portion.
  • adjacent sub-pixels are connected to each other by a diagonal connecting portion.
  • the part surrounded by the thick dotted line a in the figure corresponds to the core part.
  • the sub-pixel has a rectangular core and a rectangular convex portion adjacent to each of the four sides of the core (in other words, a cross shape).
  • each of the sub-pixels 201 to 203 is provided with an on-chip lens 261 and a color filter 262.
  • a circular line indicates the outer periphery of the on-chip lens 261
  • a thick rectangular frame indicates the outer periphery of the color filter 262.
  • the connecting portion is omitted.
  • FIG. 38 is an example of a cross-sectional view of the pixel array section 120 in the sixth embodiment of the present technology.
  • This figure is an example of a cross-sectional view of b in FIG. 37 taken along the horizontal line Xa-Xb including the core portion.
  • the thick dotted line in FIG. 38 indicates the cross-sectional shape of the convex portion when cut along the line segment Xc-Xd including only the convex portion of the core portion and the convex portion, b in FIG. 37.
  • the arrow indicates the optical path of light emitted by the organic EL film 222.
  • a cross section cut along the horizontal line segment Xa-Xb does not include the connection portion. Adjacent subpixels in this cross section are separated from each other by an insulating film 230. Further, a low refractive index film 270 is formed under the color filter 262.
  • FIG. 39 is an example of a cross-sectional view taken along a line segment including the connecting portion in the sixth embodiment of the present technology.
  • This figure is an example of a cross-sectional view of a in FIG. 37 taken along the diagonal line Xe-Xf.
  • a cross section cut along the diagonal line segment Xe-Xf includes the connection portion. Adjacent subpixels are connected to each other by this connection portion.
  • FIG. 40 is a diagram for explaining the manufacturing process of the display device 100 in the sixth embodiment of the present technology.
  • a shows a cross-sectional view before photolithography
  • b in the same figure shows a cross-sectional view after photolithography.
  • the manufacturing system forms the organic EL film 222 and the cathode electrode 221, forms the protective film 211 on top of them, and places the photoresist 250 on top of the protective film 211.
  • the shape of the photoresist 250 when viewed from the Z-axis direction is a shape in which a connecting portion and a subpixel with unevenness are hollowed out.
  • the manufacturing system then performs photolithography.
  • the protective film 211 is processed into an uneven shape, as illustrated in b in the figure.
  • b in the figure indicates a cross section taken along line Xa-Xb in FIG.
  • FIG. 41 is a diagram illustrating an example of the shape of a subpixel with four convex portions in the sixth embodiment of the present technology.
  • the core portion is rectangular, up to four convex portions can be provided.
  • the convex portion can also be triangular, as illustrated in a in the figure.
  • the convex portion may be rectangular and may be arranged adjacent to the apex of the core portion.
  • the convex portions may be rectangular and may be arranged adjacent to the four sides of the core portion.
  • the convex portion can also be semicircular. As illustrated in d in the figure, the convex portion can also be shaped like a wedge.
  • FIG. 42 is a diagram illustrating an example of the shape of a subpixel with five convex portions in the sixth embodiment of the present technology.
  • the core portion is pentagonal, up to five convex portions can be provided.
  • the convex portion can also be triangular, as illustrated in a in the figure. Further, as illustrated in b in the figure, the convex portion can also be rectangular.
  • FIG. 43 is a diagram showing an example of the shape of a subpixel with six convex portions in the sixth embodiment of the present technology.
  • the core portion is hexagonal, up to six convex portions can be provided.
  • the convex portion can also be triangular, as illustrated in a in the figure.
  • the convex portion can also be rectangular.
  • the convex portion can also be hexagonal.
  • FIG. 44 is a diagram illustrating an example of the shape of a subpixel with eight convex portions in the sixth embodiment of the present technology.
  • the core portion is octagonal, up to eight convex portions can be provided.
  • the convex portion can also be triangular, as illustrated in a in the figure. Further, as illustrated in b in the figure, the convex portion can also be rectangular.
  • the connecting portions are arranged only in the diagonal direction, but as described above, they can also be arranged in the vertical or horizontal direction.
  • sub-pixels can be arranged in stripes.
  • connection parts are omitted.
  • the number of protrusions can be four, as illustrated in a in FIG. 45.
  • the number of convex portions can be five.
  • the number of protrusions can be six.
  • the number of convex portions can be eight.
  • sub-pixels can be arranged in a delta arrangement.
  • connection parts are omitted.
  • the number of convex portions can be four.
  • the number of convex portions can be five.
  • the number of protrusions can be six.
  • the number of convex portions can be eight.
  • the sub-pixels can be arranged in a square array.
  • connection parts are omitted.
  • the number of convex portions can be four, as illustrated in a in FIG. 49.
  • the number of convex portions can be five.
  • the number of protrusions can be six.
  • the number of convex portions can be eight.
  • the shape of the subpixel when viewed from the Z-axis direction is a composite figure of a core portion and a plurality of convex portions, thereby improving light extraction efficiency. be able to.
  • the shape of the organic EL film 222 in the sub-pixel is hexagonal when viewed from the Z-axis direction, but with this shape, it is difficult to further improve the light extraction efficiency.
  • the display device 100 according to the seventh embodiment differs from the first embodiment in that the organic EL film 222 has a bent portion to improve light extraction efficiency.
  • FIG. 51 is a diagram showing a plan view of the organic EL film 222 and a cross-sectional view of the pixel array section 120 in the seventh embodiment of the present technology.
  • a shows a plan view of the organic EL film 222 viewed from the Z-axis direction.
  • b in the figure shows a cross-sectional view taken along the line Xa-Xb of a in the figure.
  • the organic EL film 222 has a shape having a predetermined number of bent parts when viewed from the Z-axis direction.
  • the rough dotted line a indicates the outer periphery of the sub-pixel
  • the fine rectangular dotted line indicates the outer periphery of the connection portion.
  • Circular dotted lines indicate bends.
  • the organic EL film 222 in the sub-pixel has an S-shape bent at right angles at each of four bent portions.
  • the upper surface of the anode electrode 223 in the lower layer of the organic EL film 222 is not processed into a shape having a bent portion.
  • the cathode electrode 221 and the protective film 211 stacked on the organic EL film 222 have the same shape as the organic EL film 222 when viewed from the Z-axis direction.
  • FIG. 52 is a diagram for explaining the manufacturing process up to photolithography in the seventh embodiment of the present technology.
  • a in the same figure shows a cross-sectional view of the pixel array section 120 when the protective film 211 is formed.
  • b in the figure shows a cross-sectional view of the pixel array section 120 when photolithography is performed.
  • a protective film 211 covering the upper part of the cathode electrode 221 is formed for each subpixel.
  • the organic EL film 222 has not been processed into a pattern such as an S-shape having a bent portion.
  • the manufacturing system places a photoresist 250 on top of each subpixel and performs photolithography.
  • This photoresist 250 has a hollowed-out shape such as an S-shape when viewed from the Z-axis direction.
  • FIG. 53 is a diagram for explaining the manufacturing process up to the formation of the low refractive index film 270 in the seventh embodiment of the present technology.
  • a shows a cross-sectional view of the pixel array section 120 after photolithography.
  • b in the same figure shows a cross-sectional view of the pixel array section 120 on which the low refractive index film 270 is formed.
  • the protective film 211, the cathode electrode 221, and the organic EL film 222 are processed into a shape having a bent portion when viewed from the Z-axis direction by photolithography. Then, as illustrated in b in the figure, the manufacturing system embeds a low refractive index film 270 to cover the processed end surface. A reflective interface is formed by filling and covering the processed end surface of the organic EL film 222 with the low refractive index film 270. By increasing the reflective area of the sidewall, light extraction efficiency can be improved.
  • the material of the low refractive index film 270 for example, silicon nitride (SiN x ), silicon dioxide (SiO 2 ), lithium fluoride (LiF), magnesium fluoride (MgF), silicon oxynitride (SiON), etc. are used.
  • a transparent material is used.
  • the low refractive index film 270 may be a porous film (low film density); for example, by using SiO x as a porous film, an even lower refractive index film with a refractive index of 1.4 or less can be obtained. be able to.
  • the low refractive index film 270 may be formed as a low refractive index portion within the protective film 211 on the end face, and includes voids and air gaps.
  • the sidewall reflection area increases not only at the periphery of the subpixel but also inside the subpixel. Thereby, the light extraction efficiency can be further improved.
  • FIG. 54 is a diagram showing an example of a plan view of the organic EL film 222 in the seventh embodiment of the present technology.
  • the shape of the organic EL film 222 viewed from the Z-axis direction is not limited to the above-mentioned S-shape as long as it has a predetermined number of bent parts.
  • the organic EL film 222 may be a shape in which a horizontal line is drawn in a direction perpendicular to a plurality of parallel lines (a so-called Amitabha pattern).
  • the width of a part of the organic EL film 222 may be different from the width of the other part.
  • the width of the portion from coordinates Y1 to Y2 is wider than the width of the portion from coordinates Y2 to Y3.
  • the organic EL film 222 may have a shape in which a plurality of notches are formed (so-called comb shape).
  • c is the shape of adjacent subpixels 201 and 202.
  • the organic EL film 222 may have a spiral shape. Further, as illustrated in b in the figure, it may be U-shaped. Further, it is also possible to perform a 90 degree rotation or an inverted arrangement. It is also possible to change the orientation of subpixels for each color. Further, the arrangement angle can also be changed toward the outer periphery of the pixel array section 120.
  • anode electrode 223 was not processed into a pattern having a bent portion, it is not limited to this configuration.
  • the anode electrode 223 can also be processed into the same shape (such as an S-shape) together with the protective film 211, the cathode electrode 221, and the organic EL film 222.
  • sub-pixels having a shape having a bent portion can be arranged in a stripe pattern.
  • the subpixels can be arranged in a delta arrangement.
  • FIGS. 59 and 60 it is also possible to arrange them in a square manner.
  • two B sub-pixels can be arranged adjacently within a pixel arranged in two rows and two columns, as illustrated in FIG.
  • two B sub-pixels can also be arranged diagonally.
  • the organic EL film 222 in the sub-pixel has a shape having a predetermined number of bent parts, so that the light extraction efficiency can be improved.
  • the display device 100 according to the eighth embodiment is first in that unevenness is formed on the side wall of the subpixel when viewed from the X-axis direction and the Y-axis direction to prevent color mixture and improve light extraction efficiency. This is different from the embodiment of .
  • FIG. 61 is a diagram showing an example of a cross-sectional view of the pixel array section 120 in the eighth embodiment of the present technology.
  • a in the same figure is an example of a cross-sectional view of the pixel array section 120 when cut along a cutting surface that does not include the connection portion.
  • b in the same figure is an example of a cross-sectional view of the pixel array section 120 when cut along a cutting plane including the connection portion.
  • an organic EL film 222, a cathode electrode 221, and a protective film 212 are laminated on the anode electrode 223. be done. Further, a protective film 211 is formed to cover each side surface of the organic EL film 222 and the cathode electrode 221, and the side surface and top of the protective film 212. Further, a low refractive index film 270 is embedded between each sub-pixel, and a color filter 262 and an on-chip lens 261 are formed on the low refractive index film 270.
  • unevenness is formed on the side wall of the protective film 211 when viewed from the X-axis direction and the Y-axis direction, in other words, on the side wall of the sub-pixel. Due to the formation of this unevenness, the side wall reflection of each sub-pixel is enhanced compared to the case where there is no unevenness, and the amount of light incident on the color filter 262 immediately above is increased while sealing performance is maintained. As a result, color mixing can be prevented and light extraction efficiency can be improved.
  • the cross-sectional shape of the convex portion of the convex and concave portions is, for example, rectangular.
  • FIG. 62 is a diagram for explaining the manufacturing process in the eighth embodiment of the present technology.
  • the manufacturing system forms an anode electrode 223, an organic EL film 222, a cathode electrode 221, and a protective film 212 for each subpixel on a substrate 240, and embeds them with a protective film 211.
  • the refractive index of the protective film 211 is lower than or equal to the refractive index of the protective film 212 on the sub-pixel.
  • the manufacturing system forms unevenness on the side wall of the protective film 211 by dry etching again, and embeds it with the low refractive index film 270, as illustrated in c in the figure.
  • FIG. 63 is a diagram illustrating an example of a subpixel arrangement method in the eighth embodiment of the present technology.
  • the subpixels are arranged in a square array.
  • R, G, and B sub-pixels may be arranged as shown in a in the figure, or R, G, B, and W (White ) may be arranged.
  • sub-pixels can also be arranged in a delta arrangement.
  • R, G, and B subpixels may be arranged as shown in c in the same figure, or R, G, B, and W subpixels may be arranged as shown in d in the same figure. Pixels may be arranged.
  • the subpixels can be arranged in stripes, as illustrated in e and f in the figure.
  • R, G, and B sub-pixels may be arranged as shown in e in the same figure, or R, G, B, and W sub-pixels may be arranged in stripes as shown in f in the same figure. Pixels may be arranged.
  • a cathode contact electrode 224 can be arranged between adjacent pixels.
  • unevenness is formed on the side wall of the sub-pixel when viewed from the X-axis direction and the Y-axis direction, so that color mixing can be prevented and light extraction efficiency can be improved. can.
  • unevenness is formed on the side wall of the protective film 211 of each sub-pixel, but unevenness can also be formed on parts other than the protective film 211.
  • the display device 100 according to the first modification of the eighth embodiment differs from the eighth embodiment in that a textured film is added and irregularities are formed on the textured film.
  • FIG. 65 is a diagram showing an example of a cross-sectional view of the pixel array section 120 in the first modification of the eighth embodiment of the present technology.
  • the top and side surfaces of each protective film 211 of the sub-pixel of the first modification of the eighth embodiment are covered with a textured film 215.
  • a textured film 215 is formed with unevenness.
  • zinc oxide (ZnO) is used as the texture film 215.
  • FIG. 66 is a diagram for explaining the manufacturing process in the first modification of the eighth embodiment of the present technology.
  • embedding with the protective film 211 is not performed.
  • the manufacturing system forms a textured film 215 with unevenness on the upper surface and side surfaces of the protective film 211.
  • the manufacturing system embeds a low refractive index film 270 between the subpixels.
  • an air gap surrounded by the texture film 215 can also be formed between the subpixels.
  • the textured film 215 is formed with unevenness, light is reflected on the sidewalls of the textured film 215 to prevent color mixing and improve light extraction efficiency. can be done.
  • the unevenness is formed on the entire side wall of the subpixel, but it is also possible to form the unevenness only on a part of the side wall.
  • the display device 100 according to the second modification of the eighth embodiment differs from the eighth embodiment in that unevenness is formed on the upper and lower parts of the side walls.
  • FIG. 68 is a diagram showing an example of a cross-sectional view of the pixel array section 120 in the second modification of the eighth embodiment of the present technology.
  • the pixel array section 120 of this second modification of the eighth embodiment differs from the eighth embodiment in that unevenness is formed only on the upper part of the side wall of the protective film 210.
  • FIG. 69 is a diagram for explaining the manufacturing process in the second modification of the eighth embodiment of the present technology.
  • the manufacturing system forms an organic EL film 222 and forms a layer of a cathode electrode 221 on top of the organic EL film 222.
  • the organic EL film 222 and the cathode electrode 221 are not separated for each subpixel.
  • a protective film 212 is formed on the cathode electrode 221 by laminating a plurality of layers having different etching rates when etched. For example, layers 212-1 with a high etching rate and layers 212-2 with a low etching rate are alternately stacked.
  • the manufacturing system uses dry etching to separate the protective film 212 for each subpixel, and as illustrated in c in the figure, wet etching is performed to utilize the etching rate difference. Irregularities are formed on the sidewall of the protective film 211.
  • the manufacturing system separates the protective film 211, organic EL film 222, and cathode electrode 221 for each subpixel by dry etching, and further adds layers on the upper and side surfaces of each separated portion.
  • a protective film 212 is formed. As a result, unevenness is formed only on the upper side wall of the protective film 210 made up of the protective films 211 and 212.
  • the cross-sectional shape of the convex portion of the sidewall unevenness is rectangular, but the cross-sectional shape of the convex portion is not limited to a rectangle.
  • the display device 100 according to the third modification of the eighth embodiment differs from the eighth embodiment in that the cross-sectional shape of the unevenness is changed.
  • FIG. 71 is a diagram showing an example of a cross-sectional view of the pixel array section 120 in the third modification of the eighth embodiment of the present technology.
  • a shows an example of a cross-sectional view of a pixel array portion in which the cross-sectional shape of the convex portion is triangular.
  • b in the same figure shows an example of a cross-sectional view of the pixel array section 120 in which the cross-sectional shape of the recessed portion is semicircular.
  • the cross-sectional shape of the convex portion can be triangular.
  • the cross-sectional shape of the recess may be semicircular, as illustrated in b in the figure.
  • any shape can be selected as the cross-sectional shape of the unevenness of the side wall, including the above-mentioned triangle.
  • the unevenness is composed of a polygon that includes a plurality of vertices of the protrusion, and the cross-sectional shape of the protrusion includes at least one of a triangle, a quadrilateral, a polygon, and a circle, and may partially include a curve.
  • the introduction of a concavo-convex shape improves the light emission intensity at any viewing angle.
  • the luminescence intensity increases depending on the depth and width of the recess. For example, when the depth is 200 nanometers (nm) and the width is 120 nanometers (nm), the luminescence intensity increases depending on the depth and width of the recess. Double.
  • the cross-sectional shape of the unevenness is changed, so that the light extraction efficiency can be adjusted.
  • the low refractive index film 270 is embedded between the sub-pixels, but a gap may be provided without embedding.
  • This fourth modification of the eighth embodiment differs from the eighth embodiment in that gaps are provided between subpixels.
  • FIG. 72 is a diagram showing an example of a cross-sectional view of the pixel array section 120 in the fourth modification of the eighth embodiment of the present technology.
  • a gap surrounded by a protective film 211 is provided between the subpixels.
  • a low refractive index film 270 is stacked on top of the protective film 211 .
  • the voids can change the reflectance of side reflections and adjust the light extraction efficiency.
  • the light extraction efficiency can be adjusted because the gaps are provided between the subpixels.
  • the organic EL film 222 is formed at the sub-pixels and the connecting portions between the sub-pixels when viewed from the Z-axis direction.
  • the display device 100 according to the ninth embodiment differs from the first embodiment in that the organic EL film 222 is formed in a layout such that the angle formed by the sides of the opening is large.
  • FIG. 73 is a plan view showing an example of the layout of the organic EL film 222 in the first embodiment of the present technology.
  • a in the figure shows the layout of the organic EL film 222 in the first embodiment when viewed from the Z-axis direction.
  • the organic EL film 222 is formed on a predetermined number of subpixels, connections between the subpixels, and a frame 222-1 surrounding the subpixels. be done.
  • a circular region indicates a subpixel, and a rectangular portion connecting the circles indicates a connection portion.
  • Dotted lines indicate the boundaries of frame 222-1.
  • the border of frame 222-1 is a straight line, and some subpixels are cut off by the border.
  • the organic EL film 222 is left only at the connection portion, so a plurality of openings are formed in the organic EL film 222. These openings are divided into an opening 281 with at least one side in contact with the frame 222-1 and an opening 282 with no side in contact with the frame 222-1.
  • the thick line b in the figure shows an enlarged view of the opening 281.
  • the thick line b in the figure indicates the boundary of the opening 281. This boundary includes straight sides and circular arcs. The angle between two of these sides is, for example, 120° or 30°.
  • c in the figure shows an enlarged view of the opening 282.
  • the bold line c in the figure indicates the boundary of the opening 282.
  • This boundary also includes straight sides and circular arcs. The angle between two of these sides is, for example, 60° or 120°.
  • FIG. 74 is an example of a perspective view of the opening in the first embodiment of the present technology.
  • a indicates the smallest angle of the two sides of the opening 281, at least one of which is in contact with the frame 222-1, and the angle is 30°.
  • b indicates the smallest angle of the two sides of the opening 282 that has no sides in contact with the frame 222-1, and the angle is 60°.
  • the minimum value of the angle formed by the two sides of the opening 281 is smaller than that of the opening 282. If the angle is small in this way, the coverage of the protective film 211 (silicon nitride or the like) on the side wall of the organic EL film 222 will deteriorate, resulting in areas where the protective film 221 is thin. This area is prone to moisture infiltration. When moisture enters, the organic EL film 222 may be damaged and deteriorated.
  • FIG. 75 is a plan view showing an example of the layout of the organic EL film 222 in the ninth embodiment of the present technology.
  • an organic EL film 222 is also formed at the location where the opening 281 was in the first embodiment.
  • the boundary of the frame 222-1 indicated by the dotted line has a sawtooth shape.
  • the shape of the opening 281-1 having at least one side in contact with the frame 222-1 having this shape is the same as the shape of the opening 282 having no side in contact with the frame 222-1.
  • the opening 281-1 is an example of the first opening described in the claims
  • the opening 282 is an example of the second opening described in the claims.
  • the minimum value of the angle formed by the two sides of the opening 282-1 is equal to the minimum value of the angle formed by the two sides of the opening 282.
  • the thickness of the protective film 211 in the vicinity of the frame 222-1 can be made equal to that of the side surface of the subpixel remote from the frame 222-1, and 1 deterioration can be avoided.
  • the aspect ratio of the opening becomes higher and the coverage of the protective film 211 deteriorates, so it is important to avoid deterioration using the layout illustrated in the figure.
  • the minimum value of the angle formed by the two sides of the opening that has at least one side in contact with the frame 222-1 is the minimum value of the angle formed by the two sides of the opening that has no side that is in contact with the frame 222-1. It can also be larger than the value.
  • each of the second to eighth embodiments can be applied to the ninth embodiment.
  • the minimum value of the angle formed by the two sides of the opening 281-1 is made equal to the minimum value of the angle formed by the two sides of the opening 282. Deterioration of the frame 222-1 can be suppressed.
  • the shape of the opening 281-1 whose at least one side is in contact with the frame 222-1 is the same as that of the opening 282 which is not in contact with the frame 222-1, but the layout is not limited to this.
  • the display device 100 according to the first modification of the ninth embodiment differs from the ninth embodiment in that the layout has been changed.
  • FIG. 76 is a plan view showing an example of the layout of the organic EL film 222 in the first modification of the ninth embodiment of the present technology.
  • the boundary of the frame 222-1 includes sawtooth-shaped sides and linear sides.
  • the opening 281-1 in contact with the former has the same shape as the opening 282.
  • the opening 281-2 in contact with the latter has a different shape from the opening 282, and has a shape close to a triangle.
  • the minimum value of the angle between the two sides of 281-2 which has a different shape from the opening 282, is the same as the minimum value of the angle between the two sides of the opening 282. be. Therefore, deterioration of the frame 222-1 can be suppressed.
  • the minimum value of the angle between the two sides of the opening 281-2 having a different shape is set to Since the angle is made equal to the minimum value, deterioration of the frame 222-1 can be suppressed.
  • the shape of the opening 281-1 whose at least one side is in contact with the frame 222-1 is the same as that of the opening 282 which is not in contact with the frame 222-1, but the layout is not limited to this.
  • the display device 100 according to the second modification of the ninth embodiment differs from the ninth embodiment in that the layout has been changed.
  • FIG. 77 is a plan view showing an example of the layout of the organic EL film 222 in the second modification of the ninth embodiment of the present technology.
  • the circular portion corresponding to the subpixel is not arranged in the area near the frame 222-1, and 1 at a sufficiently distant position.
  • the areas of the openings 281-3, 281-4, and 281-5, which have at least one side in contact with the frame 222-1, are larger than the area of the opening 282.
  • b in the figure shows an enlarged view of the opening 281-5.
  • the minimum value of the angle formed by the two sides of the opening 281-5 is 60°, which is equivalent to the minimum value of the angle formed by the two sides of the opening 282.
  • the minimum value of the angle formed by the two sides of the opening 281-3 etc. which have a relatively large area, is set to Since it is made equal to the minimum value of the angle formed by the sides, deterioration of the frame 222-1 can be suppressed.
  • the shape of the opening 281-1 whose at least one side is in contact with the frame 222-1 is the same as that of the opening 282 which is not in contact with the frame 222-1, but the layout is not limited to this.
  • the display device 100 according to the third modification of the ninth embodiment differs from the ninth embodiment in that the layout has been changed.
  • FIG. 78 is a plan view showing an example of the layout of the organic EL film 222 in the third modification of the ninth embodiment of the present technology.
  • the border of the frame 222-1 is linear, and the circular portion corresponding to the subpixel is arranged at a position sufficiently distant from the frame 222-1. Ru.
  • openings 281-6, 281-7, and 281-8 there are three patterns of openings that have at least one side in contact with the frame 222-1: openings 281-6, 281-7, and 281-8.
  • the minimum value of the angle between the two sides is 60°, which is the same as the minimum value of the angle between the two sides of the opening 282.
  • the minimum value of the angle formed by the two sides of the opening 281-7 adjacent to the corner of the frame 222-1 is 90°, which is larger than the angle formed by the two sides of the opening 282. This suppresses deterioration, especially near the corners of the frame 222-1.
  • the minimum value of the angle formed by the two sides of the opening 281-7 adjacent to the corner is Since the angle is made larger than that of the corner, deterioration near the corner can be suppressed.
  • the size of the wavelength selection section may be changed as appropriate depending on the light emitted by the light emitting element, or the size of the wavelength selection section (for example, a color filter layer) of an adjacent light emitting element may be changed as appropriate. ), the size of the light absorption layer (black matrix layer) may be changed as appropriate depending on the light emitted by the light emitting element.
  • the size of the wavelength selection section (for example, color filter layer) is determined according to the distance (offset amount) d 0 between the normal line passing through the center of the light emitting section and the normal line passing through the center of the color filter layer CF. , may be changed as appropriate.
  • the planar shape of the wavelength selection section (for example, the color filter layer) may be the same as, similar to, or different from the planar shape of the lens member.
  • the normal LN passing through the center of the light emitting section, the normal LN'' passing through the center of the wavelength selection section, and the normal LN' passing through the center of the lens member do not match.
  • the normal LN' passing through the center of the lens member may not coincide with the normal LN passing through the center of the light emitting section and the normal LN'' passing through the center of the wavelength selection section.
  • the center of the wavelength selection section (indicated by a black square in FIG. 31) be located on the straight line LL connecting the center of the light emitting section and the center of the lens member (indicated by a black circle in FIG. 80).
  • the normal LN passing through the center of the light emitting section, the normal LN'' passing through the center of the wavelength selection section, and the normal LN' passing through the center of the lens member do not match.
  • the normal LN' passing through the center of the lens member may not coincide with the normal LN passing through the center of the light emitting section and the normal LN'' passing through the center of the wavelength selection section.
  • the center of the wavelength selection section is located on the straight line LL connecting the center of the light emitting section and the center of the lens member. Specifically, the distance from the center of the light emitting part in the thickness direction to the center of the wavelength selection part (indicated by a black square in FIG.
  • the pixel used in the display device according to the present disclosure described above can be configured to include a resonator structure that resonates light generated in the light emitting section.
  • the resonator structure will be described below with reference to the drawings.
  • FIG. 83 is a schematic cross-sectional view for explaining the first example of the resonator structure.
  • the first electrode 31 is formed with a common thickness in each light emitting part 50.
  • a reflecting plate 71 is arranged below the first electrode 31 of the light emitting section 50 with an optical adjustment layer 72 sandwiched therebetween.
  • a resonator structure is formed between the reflective plate 71 and the second electrode 61 to resonate the light generated by the organic layer 40 .
  • the reflecting plate 71 is formed with a common thickness in each light emitting section 50.
  • the thickness of the optical adjustment layer 72 varies depending on the color that the pixel should display. By having the optical adjustment layers 72R, 72G, and 72B having different thicknesses, it is possible to set an optical distance that produces optimum resonance for the wavelength of light corresponding to the color to be displayed.
  • the upper surfaces of the reflectors 71 in the light emitting parts 50R, 50G, and 50B are arranged so as to be aligned.
  • the thickness of the optical adjustment layer 72 varies depending on the color that the pixel should display, so the position of the upper surface of the second electrode 61 varies depending on the type of the light emitting sections 50R, 50G, and 50B. differ.
  • the reflective plate 71 can be formed using, for example, metals such as aluminum (Al), silver (Ag), copper (Cu), or alloys containing these as main components.
  • the optical adjustment layer 72 is made of an inorganic insulating material such as silicon nitride (SiNx), silicon oxide (SiOx), or silicon oxynitride (SiOxNy), or an organic resin material such as acrylic resin or polyimide resin. Can be configured.
  • the optical adjustment layer 72 may be a single layer or may be a laminated film of a plurality of these materials. Furthermore, the number of layers may differ depending on the type of light emitting section 50.
  • the first electrode 31 can be formed using a transparent conductive material such as indium tin oxide (ITO), indium zinc oxide (IZO), or zinc oxide (ZnO).
  • the second electrode 61 needs to function as a semi-transparent reflective film.
  • the second electrode 61 is formed using magnesium (Mg), silver (Ag), a magnesium silver alloy (MgAg) containing these as main components, or an alloy containing an alkali metal or an alkaline earth metal. be able to.
  • (Resonator structure: second example) b in FIG. 83 is a schematic cross-sectional view for explaining a second example of the resonator structure. Also in the second example, the first electrode 31 and the second electrode 61 are formed with the same thickness in each light emitting section 50.
  • the reflection plate 71 is arranged under the first electrode 31 of the light emitting section 50 with the optical adjustment layer 72 sandwiched therebetween.
  • a resonator structure is formed between the reflective plate 71 and the second electrode 61 to resonate the light generated by the organic layer 40 .
  • the reflective plate 71 is formed to have a common thickness in each light emitting section 50, and the thickness of the optical adjustment layer 72 differs depending on the color to be displayed by the pixel.
  • the upper surfaces of the reflectors 71 in the light emitting parts 50R, 50G, 50B are arranged so as to be aligned, and the position of the upper surface of the second electrode 61 is They differed depending on the type.
  • the upper surface of the second electrode 61 is arranged so as to be aligned with the light emitting parts 50R, 50G, and 50B.
  • the upper surfaces of the reflecting plates 71 in the light emitting parts 50R, 50G, and 50B are arranged differently depending on the type of the light emitting parts 50R, 50G, and 50B. Therefore, the lower surface of the reflecting plate 71 (in other words, the surface of the base 73 indicated by reference numeral 73 in the figure) has a stepped shape depending on the type of the light emitting section 50.
  • the materials constituting the reflecting plate 71, the optical adjustment layer 72, the first electrode 31, and the second electrode 61 are the same as those described in the first example, so their description will be omitted.
  • FIG. 84 is a schematic cross-sectional view for explaining a third example of the resonator structure.
  • the first electrode 31 and the second electrode 61 are formed with a common thickness in each light emitting part 50.
  • the reflective plate 71 is arranged under the first electrode 31 of the light emitting section 50 with the optical adjustment layer 72 sandwiched therebetween.
  • a resonator structure is formed between the reflection plate 71 and the second electrode 61 to resonate the light generated by the organic layer 40 .
  • the thickness of the optical adjustment layer 72 differs depending on the color that the pixel should display.
  • the upper surface of the second electrode 61 is arranged such that the light emitting parts 50R, 50G, and 50B are aligned.
  • the lower surface of the reflecting plate 71 had a stepped shape depending on the type of the light emitting section 50.
  • the film thickness of the reflection plate 71 is set to be different depending on the types of the light emitting parts 50R, 50G, and 50B. More specifically, the film thickness is set so that the lower surfaces of the reflectors 71R, 71G, and 71B are aligned.
  • the materials constituting the reflecting plate 71, the optical adjustment layer 72, the first electrode 31, and the second electrode 61 are the same as those described in the first example, so their description will be omitted.
  • (Resonator structure: 4th example) b in FIG. 84 is a schematic cross-sectional view for explaining the fourth example of the resonator structure.
  • the first electrode 31 and second electrode 61 of each light emitting section 50 are formed with a common thickness.
  • a reflective plate 71 is disposed below the first electrode 31 of the light emitting section 50 with an optical adjustment layer 72 sandwiched therebetween.
  • the optical adjustment layer 72 is omitted, and the film thickness of the first electrode 31 is set to be different depending on the types of the light emitting parts 50R, 50G, and 50B.
  • the reflecting plate 71 is formed with a common thickness in each light emitting section 50.
  • the thickness of the first electrode 31 varies depending on the color that the pixel should display. By having the first electrodes 31R, 31G, and 31B having different thicknesses, it is possible to set an optical distance that produces optimal resonance for the wavelength of light corresponding to the color to be displayed.
  • the materials constituting the reflecting plate 71, the optical adjustment layer 72, the first electrode 31, and the second electrode 61 are the same as those described in the first example, so their description will be omitted.
  • FIG. 85 A in FIG. 85 is a schematic cross-sectional view for explaining the fifth example of the resonator structure.
  • the first electrode 31 and the second electrode 61 are formed with a common thickness in each light emitting part 50.
  • a reflective plate 71 is disposed below the first electrode 31 of the light emitting section 50 with an optical adjustment layer 72 sandwiched therebetween.
  • the optical adjustment layer 72 was omitted and an oxide film 74 was formed on the surface of the reflection plate 71 instead.
  • the thickness of the oxide film 74 was set to be different depending on the type of the light emitting parts 50R, 50G, and 50B.
  • the thickness of the oxide film 74 varies depending on the color that the pixel should display. By having the oxide films 74R, 74G, and 74B having different thicknesses, it is possible to set an optical distance that produces optimum resonance for the wavelength of light corresponding to the color to be displayed.
  • the oxide film 74 is a film obtained by oxidizing the surface of the reflecting plate 71, and is made of, for example, aluminum oxide, tantalum oxide, titanium oxide, magnesium oxide, zirconium oxide, or the like.
  • the oxide film 74 functions as an insulating film for adjusting the optical path length (optical distance) between the reflection plate 71 and the second electrode 61.
  • the oxide film 74 which has a different thickness depending on the type of the light emitting parts 50R, 50G, and 50B, can be formed, for example, as follows.
  • a container is filled with an electrolytic solution, and the substrate on which the reflective plate 71 is formed is immersed in the electrolytic solution. Further, electrodes are arranged to face the reflecting plate 71.
  • a positive voltage is applied to the reflective plate 71 with the electrode as a reference, and the reflective plate 71 is anodized.
  • the thickness of the oxide film formed by anodic oxidation is proportional to the voltage value applied to the electrode. Therefore, anodic oxidation is performed with a voltage depending on the type of light emitting section 50 being applied to each of the reflecting plates 71R, 71G, and 71B. Thereby, oxide films 74 having different thicknesses can be formed all at once.
  • the materials constituting the reflective plate 71, the first electrode 31, and the second electrode 61 are the same as those described in the first example, so their description will be omitted.
  • (Resonator structure: 6th example) b in FIG. 85 is a schematic cross-sectional view for explaining the sixth example of the resonator structure.
  • the light emitting section 50 is configured by laminating the first electrode 31, the organic layer 40, and the second electrode 61.
  • the first electrode 31 is formed to serve both as an electrode and as a reflector.
  • the first electrode (also serving as a reflection plate) 31 is formed of a material having optical constants selected according to the types of the light emitting parts 50R, 50G, and 50B. By varying the phase shift caused by the first electrode (also serving as a reflection plate) 31, it is possible to set an optical distance that produces optimal resonance for the wavelength of light corresponding to the color to be displayed.
  • the first electrode (also serving as a reflection plate) 31 can be made of a single metal such as aluminum (Al), silver (Ag), gold (Au), or copper (Cu), or an alloy containing these as main components.
  • the first electrode (cum-reflector) 31R of the light-emitting part 50R is formed of copper (Cu), the first electrode (cum-reflector) 31G of the light-emitting part 50G, and the first electrode (cum-reflector) of the light-emitting part 50B.
  • 31B may be made of aluminum.
  • the materials constituting the second electrode 61 are the same as those described in the first example, so their description will be omitted.
  • FIG. 86 is a schematic cross-sectional view for explaining the seventh example of the resonator structure.
  • the seventh example basically has a configuration in which the sixth example is applied to the light emitting sections 50R and 50G, and the first example is applied to the light emitting section 50B. Also in this configuration, it is possible to set an optical distance that produces optimum resonance for the wavelength of light corresponding to the color to be displayed.
  • the first electrodes (cum-reflection plates) 31R and 31G used in the light emitting parts 50R and 50G are made of single metals such as aluminum (Al), silver (Ag), gold (Au), and copper (Cu), or are made of metals such as these as main components. It can be constructed from an alloy.
  • the materials used for the reflective plate 71B, the optical adjustment layer 72B, and the first electrode 31B used in the light emitting part 50B are the same as those described in the first example, so the description thereof will be omitted.
  • the display device of the present disclosure described above can be used as a display unit (display device) of electronic devices in all fields that displays a video signal input to the electronic device or a video signal generated within the electronic device as an image or video.
  • a display unit of electronic devices in all fields that displays a video signal input to the electronic device or a video signal generated within the electronic device as an image or video.
  • it can be used as a display unit of a television set, a digital still camera, a notebook personal computer, a mobile terminal device such as a mobile phone, a video camera, a head-mounted display, and the like.
  • the display device of the present disclosure includes a module-shaped display device with a sealed configuration.
  • a display module formed by pasting a facing part such as transparent glass on a pixel array part.
  • the display module may be provided with a circuit section, a flexible printed circuit (FPC), and the like for inputting and outputting signals from the outside to the pixel array section.
  • FPC flexible printed circuit
  • a digital still camera and a head-mounted display will be illustrated as specific examples of electronic devices that use the display device of the present disclosure. However, the specific example illustrated here is only an example, and the present invention is not limited thereto.
  • a and b in FIG. 87 show an example of the appearance of the digital still camera 310.
  • This digital still camera 310 is a single-lens reflex type with interchangeable lenses, and has an interchangeable photographic lens unit (interchangeable lens) 312 approximately in the center of the front of a camera body 311, and on the left side of the front. It has a grip part 313 for the photographer to hold.
  • interchangeable photographic lens unit interchangeable lens
  • a monitor 314 is provided at a position shifted to the left from the center of the back surface of the camera body section 311.
  • An electronic viewfinder (eyepiece window) 315 is provided at the top of the monitor 314 . By looking through the electronic viewfinder 315, the photographer can visually recognize the light image of the subject guided from the photographic lens unit 312 and determine the composition.
  • the display device 100 according to any of the above-described embodiments and modifications thereof can be used.
  • FIG. 88 shows an example of the appearance of the head mounted display 320.
  • the head-mounted display 320 has, for example, ear hooks 322 on both sides of a glasses-shaped display section 321 to be worn on the user's head.
  • FIG. 89 shows an example of the appearance of the television device 330.
  • This television device 330 has a video display screen section 331 including, for example, a front panel 332 and a filter glass 333, and this video display screen section 331 is configured to display a display according to any one of the above-described embodiments and modifications thereof. It is configured by a device 100.
  • Specific example 4
  • FIG. 90 is an external view of the see-through head-mounted display.
  • the see-through head-mounted display 400 includes a main body 401, an arm 402, and a lens barrel 403.
  • the main body portion 401 is connected to an arm 402 and glasses 410. Specifically, an end of the main body 401 in the long side direction is coupled to the arm 402, and one side of the main body 401 is coupled to the glasses 410 via a connecting member. Note that the main body portion 401 may be directly attached to the human head.
  • the main body section 401 incorporates a control board for controlling the operation of the see-through head-mounted display 400 and a display section.
  • the arm 402 connects the main body portion 401 and the lens barrel 403 and supports the lens barrel 403. Specifically, the arm 402 is coupled to an end of the main body 401 and an end of the lens barrel 403, respectively, and fixes the lens barrel 403.
  • the arm 402 also includes a built-in signal line for communicating data related to images provided from the main body 401 to the lens barrel 403.
  • the lens barrel 403 projects image light provided from the main body 401 via the arm 402 toward the eyes of the user wearing the see-through head-mounted display 400 through the eyepiece.
  • the display device of the present disclosure can be used for the display section of the main body section 401.
  • the display device 100 can be applied to a display section included in an electronic device such as a smartphone.
  • the smartphone 600 includes a display section 602 that displays various information, and an operation section that includes buttons and the like that accept operation inputs from the user.
  • the display unit 602 may be the display device 100 according to the present embodiment.
  • FIG. 92 is a diagram showing the interior of the vehicle from the rear to the front of the vehicle
  • b in FIG. 92 is a diagram showing the interior of the vehicle from the diagonal rear to the diagonal front.
  • the vehicles a and b in FIG. 92 have a center display 501, a console display 502, a head-up display 503, a digital rear mirror 504, a steering wheel display 505, and a rear entertainment display 506.
  • the center display 501 is placed on the dashboard at a location facing the driver's seat 508 and passenger seat 509.
  • FIG. 92 shows an example of a horizontally long center display 501 extending from the driver's seat 508 side to the passenger seat 509 side
  • the screen size and placement location of the center display 501 are arbitrary.
  • Center display 501 can display information detected by various sensors. As a specific example, the center display 501 displays images taken by an image sensor, distance images to obstacles in front and sides of the vehicle measured by a ToF sensor, and passenger body temperature detected by an infrared sensor. Can be displayed.
  • Center display 501 can be used, for example, to display at least one of safety-related information, operation-related information, life log, health-related information, authentication/identification-related information, and entertainment-related information.
  • Safety-related information includes information such as detection of falling asleep, detection of looking away, detection of mischief by children in the same vehicle, presence or absence of seatbelts, and detection of leaving passengers behind. This information is detected by The operation-related information uses sensors to detect gestures related to operations by the occupant.
  • the sensed gestures may include manipulation of various equipment within vehicle 500. For example, the operation of air conditioning equipment, navigation equipment, AV equipment, lighting equipment, etc. is detected.
  • the life log includes life logs of all crew members. For example, a life log includes a record of the actions of each occupant during the ride. By acquiring and saving life logs, it is possible to check the condition of the occupants at the time of the accident.
  • the body temperature of the occupant is detected using a sensor such as a temperature sensor, and the health condition of the occupant is estimated based on the detected body temperature.
  • a sensor such as a temperature sensor
  • an image sensor may be used to capture an image of the occupant's face, and the occupant's health condition may be estimated from the captured facial expression.
  • Authentication/identification related information includes a keyless entry function that performs facial recognition using a sensor, and a function that automatically adjusts seat height and position using facial recognition.
  • the entertainment-related information includes a function that uses a sensor to detect operation information of an AV device by a passenger, a function that recognizes the passenger's face using a sensor, and provides the AV device with content suitable for the passenger.
  • the console display 502 can be used, for example, to display life log information.
  • Console display 502 is arranged near shift lever 511 on center console 510 between driver's seat 508 and passenger seat 509.
  • the console display 502 can also display information detected by various sensors. Further, the console display 502 may display an image around the vehicle captured by an image sensor, or may display a distance image to an obstacle around the vehicle.
  • the head-up display 503 is virtually displayed behind the windshield 512 in front of the driver's seat 508.
  • Head-up display 503 can be used, for example, to display at least one of safety-related information, operation-related information, life log, health-related information, authentication/identification-related information, and entertainment-related information. Since the head-up display 503 is often virtually placed in front of the driver's seat 508, it is difficult to display information directly related to the operation of the vehicle 500, such as the speed of the vehicle 500 and the remaining amount of fuel (battery). Are suitable.
  • the digital rear mirror 504 can display not only the rear of the vehicle, but also the state of the occupants in the rear seats, so by placing a sensor on the back side of the digital rear mirror 504, it can be used, for example, to display life log information. I can do it.
  • the steering wheel display 505 is located near the center of the steering wheel 513 of the vehicle.
  • Steering wheel display 505 can be used, for example, to display at least one of safety-related information, operation-related information, life log, health-related information, authentication/identification-related information, and entertainment-related information.
  • life log information such as the driver's body temperature, and information regarding the operation of AV equipment, air conditioning equipment, etc. There is.
  • the rear entertainment display 506 is attached to the back side of the driver's seat 508 and passenger seat 509, and is for viewing by passengers in the rear seats.
  • Rear entertainment display 506 can be used, for example, to display at least one of safety-related information, operation-related information, lifelog, health-related information, authentication/identification-related information, and entertainment-related information.
  • information relevant to the rear seat occupant is displayed. For example, information regarding the operation of the AV device or air conditioning equipment may be displayed, or the results of measuring the body temperature of the passenger in the rear seat using a temperature sensor may be displayed.
  • optical distance measurement methods There are two main types of optical distance measurement methods: passive and active.
  • a passive type sensor measures distance by receiving light from an object without emitting light from the sensor to the object.
  • Passive methods include the lens focusing method, stereo method, and monocular viewing method.
  • the active type measures distance by projecting light onto an object and receiving the reflected light from the object with a sensor.
  • Active types include an optical radar method, an active stereo method, a photometric stereo method, a moiré topography method, and an interferometry method.
  • the display device 100 according to the present disclosure is applicable to any of these methods of distance measurement. By using the sensors stacked on the back side of the display device 100 according to the present disclosure, the above-described passive or active distance measurement can be performed.
  • a first electrode and a second electrode with different polarities A connecting portion is formed between a predetermined number of sub-pixels and a connecting portion that is a portion connecting adjacent sub-pixels to each other in an inter-pixel region between the predetermined number of sub-pixels when viewed from a direction perpendicular to a predetermined plane;
  • a display device comprising an organic EL film formed between a first electrode and a second electrode when viewed from a direction parallel to a plane.
  • the first electrode is formed in a predetermined area surrounding each subpixel when viewed from the vertical direction;
  • the connection portion is formed in a portion of the inter-pixel region that does not correspond to a rectangular region.
  • the predetermined number of sub-pixels are arranged within a pixel array section,
  • the display device according to any one of (1) to (5), wherein the width of the second electrode is a value depending on the distance from the center of the pixel array section.
  • one end of the connection portion is connected to one of a pair of adjacent subpixels among the predetermined number of subpixels;
  • the other end of the connection part is connected to the other of the pair of subpixels,
  • the display device according to any one of (1) to (5), wherein the width of the one end is different from the width of the other end.
  • the predetermined number of sub-pixels are arranged within a pixel array section;
  • the connecting portion includes rectangular first and second connecting portions, The display device according to (1), wherein a pair of adjacent subpixels among the predetermined number of subpixels are connected by the first and second connection portions.
  • (11) The display device according to (1), wherein the width at the center of the connecting portion is wider than the width at both ends of the connecting portion.
  • the organic EL film When viewed from the vertical direction, the organic EL film is formed on a frame surrounding a predetermined number of the subpixels, a predetermined number of the subpixels, and the connection portion, A plurality of openings are formed in the organic EL film when viewed from the vertical direction, The plurality of openings include a first opening that has at least one side in contact with the frame and a second opening that does not correspond to the first opening, The smallest angle between the two sides of the first opening does not exceed the smallest angle between the two sides of the second opening. display device.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Geometry (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
PCT/JP2023/009274 2022-03-16 2023-03-10 表示装置 Ceased WO2023176718A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2024508120A JPWO2023176718A1 (https=) 2022-03-16 2023-03-10
KR1020247033123A KR20240159594A (ko) 2022-03-16 2023-03-10 표시 장치
CN202380026491.4A CN118974804A (zh) 2022-03-16 2023-03-10 显示装置
US18/837,731 US20250160132A1 (en) 2022-03-16 2023-03-10 Display device
EP23770673.4A EP4495920A4 (en) 2022-03-16 2023-03-10 DISPLAY DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022041081 2022-03-16
JP2022-041081 2022-03-16

Publications (1)

Publication Number Publication Date
WO2023176718A1 true WO2023176718A1 (ja) 2023-09-21

Family

ID=88023674

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/009274 Ceased WO2023176718A1 (ja) 2022-03-16 2023-03-10 表示装置

Country Status (7)

Country Link
US (1) US20250160132A1 (https=)
EP (1) EP4495920A4 (https=)
JP (1) JPWO2023176718A1 (https=)
KR (1) KR20240159594A (https=)
CN (1) CN118974804A (https=)
TW (1) TW202343847A (https=)
WO (1) WO2023176718A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW202226641A (zh) * 2020-11-26 2022-07-01 日商索尼集團公司 顯示裝置、電子機器及顯示裝置之製造方法
TWI865272B (zh) * 2023-12-28 2024-12-01 瀚宇彩晶股份有限公司 防窺模組及包括其之防窺顯示裝置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007220580A (ja) * 2006-02-20 2007-08-30 Seiko Epson Corp 有機ｅｌ装置、その製造方法およびこれを備える電子機器
JP2014098909A (ja) * 2013-12-19 2014-05-29 Japan Display Inc 電気光学表示装置
JP2014232568A (ja) 2013-05-28 2014-12-11 キヤノン株式会社 有機ｅｌ装置
KR20170062436A (ko) * 2017-05-30 2017-06-07 엘지디스플레이 주식회사 유기발광표시장치
JP2018092921A (ja) * 2016-12-06 2018-06-14 エルジー ディスプレイ カンパニー リミテッド 有機発光表示装置
US20190006626A1 (en) * 2017-06-30 2019-01-03 Lg Display Co., Ltd. Light emitting display device
JP2019067525A (ja) * 2017-09-28 2019-04-25 キヤノン株式会社 表示装置、電子機器、及び表示装置の製造方法
JP2019125501A (ja) * 2018-01-17 2019-07-25 株式会社Ｊｏｌｅｄ 有機ｅｌ表示パネル及びその製造方法
WO2019220948A1 (ja) * 2018-05-15 2019-11-21 ソニーセミコンダクタソリューションズ株式会社 表示装置、表示装置の製造方法、及び、電子機器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102640196B1 (ko) * 2018-10-12 2024-02-22 엘지디스플레이 주식회사 유기발광 표시장치
KR102652963B1 (ko) * 2018-12-04 2024-03-28 엘지디스플레이 주식회사 전계 발광 표시 장치
US11380864B2 (en) * 2019-02-13 2022-07-05 Canon Kabushiki Kaisha Electronic device, display apparatus, photoelectric conversion apparatus, electronic apparatus, illumination apparatus, and moving object

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007220580A (ja) * 2006-02-20 2007-08-30 Seiko Epson Corp 有機ｅｌ装置、その製造方法およびこれを備える電子機器
JP2014232568A (ja) 2013-05-28 2014-12-11 キヤノン株式会社 有機ｅｌ装置
JP2014098909A (ja) * 2013-12-19 2014-05-29 Japan Display Inc 電気光学表示装置
JP2018092921A (ja) * 2016-12-06 2018-06-14 エルジー ディスプレイ カンパニー リミテッド 有機発光表示装置
KR20170062436A (ko) * 2017-05-30 2017-06-07 엘지디스플레이 주식회사 유기발광표시장치
US20190006626A1 (en) * 2017-06-30 2019-01-03 Lg Display Co., Ltd. Light emitting display device
JP2019067525A (ja) * 2017-09-28 2019-04-25 キヤノン株式会社 表示装置、電子機器、及び表示装置の製造方法
JP2019125501A (ja) * 2018-01-17 2019-07-25 株式会社Ｊｏｌｅｄ 有機ｅｌ表示パネル及びその製造方法
WO2019220948A1 (ja) * 2018-05-15 2019-11-21 ソニーセミコンダクタソリューションズ株式会社 表示装置、表示装置の製造方法、及び、電子機器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4495920A4

Also Published As

Publication number Publication date
TW202343847A (zh) 2023-11-01
EP4495920A4 (en) 2025-07-23
CN118974804A (zh) 2024-11-15
JPWO2023176718A1 (https=) 2023-09-21
US20250160132A1 (en) 2025-05-15
KR20240159594A (ko) 2024-11-05
EP4495920A1 (en) 2025-01-22

Similar Documents

Publication Publication Date Title
JP2022063741A (ja) 表示装置
WO2023176718A1 (ja) 表示装置
CN114497129A (zh) 有机发光设备、显示设备、光电转换设备、电子器件、照明设备和移动物体
WO2025070503A1 (ja) 表示装置および電子機器
WO2024034502A1 (ja) 発光装置および電子機器
WO2024014444A1 (ja) 表示装置
US20250338758A1 (en) Display device and electronic apparatus
WO2024117193A1 (ja) 表示装置、表示装置の製造方法及び電子機器
WO2024048559A1 (ja) 発光装置および電子機器
WO2023176474A1 (ja) 発光装置及び電子機器
WO2026070729A1 (ja) 表示装置
WO2026070577A1 (ja) 表示装置
WO2024185733A1 (ja) 表示装置および電子機器
US20250280690A1 (en) Light emitting device, electronic device, and method of manufacturing light emitting device
WO2025206155A1 (ja) 表示装置および電子機器
WO2024080039A1 (ja) 表示装置、電子機器及び表示装置の製造方法
WO2024237201A1 (ja) 表示装置および電子機器
WO2025057618A1 (ja) 表示装置及び電子機器
WO2025018077A1 (ja) 表示装置および電子機器
WO2024117219A1 (ja) 発光装置および電子機器
WO2024135425A1 (ja) 発光装置、表示装置及び電子機器
WO2024252856A1 (ja) 表示装置および電子機器
WO2024247697A1 (ja) 表示装置および電子機器
WO2025094849A1 (ja) 表示装置、光学系および電子機器
WO2024053611A1 (ja) 発光装置および電子機器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23770673

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2024508120

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 18837731

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 202380026491.4

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 20247033123

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1020247033123

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2023770673

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2023770673

Country of ref document: EP

Effective date: 20241016

WWP Wipo information: published in national office

Ref document number: 18837731

Country of ref document: US