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公开(公告)号：US10033018B2
公开(公告)日：2018-07-24
申请号：US15860203
申请日：2018-01-02
Applicant: Japan Display Inc.
Inventor： Naoki Tokuda
Abstract: A display device includes a first substrate provided with a display region including a plurality of pixels arranged in a matrix, each of the plurality of pixels having a plurality of sub-pixels, and a second substrate provided with color filters and a light-shielding film, the color filters including transmission regions selectively transmitting lights of specific colors for the respective sub-pixels, the light-shielding film blocking light. The plurality of sub-pixels include a first sub-pixel provided with the transmission region that transmits light of a first color, and a second sub-pixel provided with the transmission region that transmits light of a second color having a luminosity factor lower than that of the light of the first color. A difference in area between a light-emitting region and the transmission region in the second sub-pixel is smaller than a difference in area between a light-emitting region and the transmission region in the first sub-pixel.
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公开(公告)号：US09747837B2
公开(公告)日：2017-08-29
申请号：US15235991
申请日：2016-08-12
Inventor： Naoki Tokuda , Hiroshi Kageyama , Masamitsu Furuie
IPC: H05B37/00 , G09G3/3233 , H01L27/32 , H05B33/08 , H05B33/04 , H01L51/52 , G09G3/3266
CPC classification number: G09G3/3233 , G09G3/3266 , G09G2320/0233 , G09G2320/0257 , G09G2320/0266 , G09G2330/00 , G09G2330/02 , H01L27/3276 , H01L51/5225 , H01L2251/5338 , H05B33/04 , H05B33/08
Abstract: The present invention overcomes image defects such as the brightness inclination or smears by reducing the line resistance of a power source bus line which supplies electricity to organic EL elements. A plurality of pixels which are arranged in a matrix array is connected to power source lines, and the plurality of power source lines are connected to a power source bus line. Both ends of the power source bus line are connected to a power source part via a FPC. By supplying electricity to both ends of the power source bus line from the power source part, the line resistance of the power source bus line can be reduced.
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公开(公告)号：US09660002B2
公开(公告)日：2017-05-23
申请号：US14975641
申请日：2015-12-18
Applicant: Japan Display Inc.
Inventor： Naoki Tokuda , Yasuyuki Yamada
CPC classification number: H01L27/322 , H01L51/5284 , H04N9/30
Abstract: A display device includes a pixel area. The plurality of pixels, each includes pixel electrodes; banks; an EL layer; a counter electrode; and a sealing substrate. The plurality of pixels each include a plurality of sub pixels demarcated by the banks; the sealing substrate includes red, blue and green color filters; the plurality of sub pixels each include an effective light emission area and a light-blocked area; the effective light emission area of the blue color filter has an area size larger than that of each of the effective light emission area of the red and green color filter; and an effective light emission area of one sub pixel adjacent to the sub pixel including the blue color filter is located at a position closest, in the one sub pixel, to the light-blocked area of the sub pixel including the blue color filter.
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公开(公告)号：US09142802B2
公开(公告)日：2015-09-22
申请号：US14495953
申请日：2014-09-25
Applicant: Japan Display Inc.
Inventor： Mitsuhide Miyamoto , Naoki Tokuda , Toshihiro Sato
CPC classification number: H01L27/322 , H01L27/3241 , H01L27/3246 , H01L51/5275
Abstract: Provided is a display device that even in the case where microlenses are formed to increase the light extraction efficiency, can decrease damage on an OLED caused by the production of the microlenses. The display device includes a first substrate; light emitting elements provided on the first substrate and located in correspondence with pixels arrayed in a matrix; a second substrate; a light collection layer provided on the second substrate and including, on the side facing the light emitting elements, at least one convex lens in correspondence with each of the pixels; and a light-transmissive layer that is provided between the first substrate and the second substrate so as to be in contact with the lens and has a refractive index lower than that of the light collection layer.
Abstract translation: 提供了即使在形成微透镜以增加光提取效率的情况下的显示装置，也可以减少由于产生微透镜而导致的OLED损坏。 显示装置包括第一基板; 发光元件设置在第一基板上并且与矩阵中排列的像素对应地设置; 第二基板; 设置在所述第二基板上的光收集层，在与所述发光元件相对的一侧包括与所述像素中的每一个对应的至少一个凸透镜; 以及透光层，其设置在第一基板和第二基板之间以与透镜接触并且具有低于光收集层的折射率的折射率。
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公开(公告)号：US11222940B2
公开(公告)日：2022-01-11
申请号：US16575629
申请日：2019-09-19
Applicant: Japan Display Inc.
Inventor： Naoki Tokuda
IPC: H01L27/32 , H01L51/00 , H01L51/52 , G09G3/3225
Abstract: A display device according to an embodiment of the present invention includes: a base material including a display region and a curved region; a wiring line disposed on the base material and disposed from the display region over the curved region; and a heat dissipating layer formed corresponding to a position at which the wiring line is disposed in the curved region.
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Patent Agency Ranking
公开(公告)号：US10825883B2
公开(公告)日：2020-11-03
申请号：US15640789
申请日：2017-07-03
Applicant: Japan Display Inc.
Inventor： Naoki Tokuda
IPC: H01L27/32 , H01L51/52 , G09G3/3233
Abstract: An organic EL display device according to an embodiment of the present invention includes: an ITO layer divided and disposed in a region where a pixel opening is formed; a capacitance insulating film disposed on the ITO layer; a lower electrode disposed on the capacitance insulating film; an organic layer disposed on the lower electrode; an upper electrode disposed on the organic layer; and a planarizing member disposed so as to soften a step of a step part of the lower electrode.
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公开(公告)号：US10223974B2
公开(公告)日：2019-03-05
申请号：US15719666
申请日：2017-09-29
Applicant: Japan Display Inc.
Inventor： Naoki Tokuda
IPC: H01L27/32 , H01L51/00 , G09G3/3233 , G09G3/3266
Abstract: A display device includes a flexible substrate, a plurality of pixels arranged in a first direction and a second direction intersecting the first direction, and a first wiring and a second extending in the first direction and a first insulating film, wherein the first insulating film is included between the first wiring and the second wiring, the first wiring and the second wiring include a part having elasticity, the first insulating film includes elasticity, and an interval between the first wiring and the second wiring changes as the flexible substrate stretches and contracts.
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公开(公告)号：US20180158893A1
公开(公告)日：2018-06-07
申请号：US15820564
申请日：2017-11-22
Applicant: Japan Display Inc.
Inventor： Naoki Tokuda
CPC classification number: G02F1/133305 , G02F1/133308 , G06F1/1652 , H01L27/12 , H01L27/3258 , H01L27/3276 , H01L51/0097 , H01L2227/323 , H01L2251/5338 , H05B33/04 , H05B33/0806
Abstract: Provided is a display device having a flexible substrate including an active region and a wiring region. The active region possesses a plurality of pixels each including a display element. The wiring region has a plurality of terminals, and a plurality of wirings extends from the active region to the plurality of terminals. An insulating film included in the active region and extending from the active region has a sidewall between an edge of the flexible substrate and the wiring adjacent to the edge in the wiring region. The sidewall has a curved portion on a plane in which the plurality of wirings is arranged, and a distance between the edge and the curved portion is curvedly varied.
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公开(公告)号：US09954041B2
公开(公告)日：2018-04-24
申请号：US14559965
申请日：2014-12-04
Applicant: Japan Display Inc.
Inventor： Naoki Tokuda , Mitsuhide Miyamoto
IPC: H01L27/32
CPC classification number: H01L27/3248 , H01L27/3218 , H01L27/3246 , H01L27/3258 , H01L27/326 , H01L27/3272
Abstract: An organic electroluminescence display device includes a substrate; a thin film transistor that is formed on the substrate; a light emitting region that has a lower electrode, a light emitting layer, and an upper electrode formed for each of a plurality of pixels arranged in a matrix shape on the thin film transistor; and a contact hole that is formed on the outside of the light emitting region in one corner portion of the pixel and connects the thin film transistor and the lower electrode for each pixel in a plan view. Only one pair of pixels of four pixels that share an intersection point of boundaries of the pixels arranged in the matrix shape, which are arranged in a diagonal manner have the contact holes at the corner portions having the intersection point.
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公开(公告)号：US09893321B2
公开(公告)日：2018-02-13
申请号：US15439465
申请日：2017-02-22
Applicant: Japan Display Inc.
Inventor： Naoki Tokuda
CPC classification number: H01L51/5284 , H01L27/3213 , H01L27/3216 , H01L27/322
Abstract: A display device includes a first substrate provided with a display region including a plurality of pixels arranged in a matrix, each of the plurality of pixels having a plurality of sub-pixels, and a second substrate provided with color filters and a light-shielding film, the color filters including transmission regions selectively transmitting lights of specific colors for the respective sub-pixels, the light-shielding film blocking light. The plurality of sub-pixels include a first sub-pixel provided with the transmission region that transmits light of a first color, and a second sub-pixel provided with the transmission region that transmits light of a second color having a luminosity factor lower than that of the light of the first color. A difference in area between a light-emitting region and the transmission region in the second sub-pixel is smaller than a difference in area between a light-emitting region and the transmission region in the first sub-pixel.
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