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公开(公告)号：US20240130165A1
公开(公告)日：2024-04-18
申请号：US18483529
申请日：2023-10-10
Applicant: Japan Display Inc.
Inventor： Hidekazu MIYAKE , Naoki TOKUDA
IPC: H10K59/122 , H10K59/12 , H10K59/80
CPC classification number: H10K59/122 , H10K59/1201 , H10K59/873 , H10K59/352
Abstract: According to one embodiment, a display device includes a plurality of display elements and a partition which surrounds each of the plurality of display elements. The display elements each include a lower electrode, an upper electrode opposing the lower electrode and an organic layer disposed between the lower electrode and the upper electrode. The partition includes a conductive lower portion and an upper portion protruding from a side surface of the lower portion. Further, the partition includes an aperture through which the lower portion and the upper portion penetrate.
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公开(公告)号：US20220013546A1
公开(公告)日：2022-01-13
申请号：US17484602
申请日：2021-09-24
Applicant: Japan Display Inc.
Inventor： Naoki TOKUDA
Abstract: A display device includes a plurality of pixels, first to nth scanning lines, and a first semiconductor film. The plurality of pixels is arranged in first to nth rows and first to mth columns. The first to nth scanning lines are electrically connected to the pixels in the respective first to nth rows. The first semiconductor film overlaps with at least one of first to kth scanning lines. A display region has a cutoff intersecting the first to nth rows, and the first semiconductor film is located in the cutoff. Each of the plurality of pixels includes a light-emitting element (OLED) and a transistor electrically connected to the OLED and having a second semiconductor film. The first semiconductor film and the second semiconductor film exist in the same layer. n and m are each a natural number larger than 1, and k is a natural number smaller than n.
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公开(公告)号：US20180145282A1
公开(公告)日：2018-05-24
申请号：US15860203
申请日：2018-01-02
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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Patent Agency Ranking
公开(公告)号：US20180102497A1
公开(公告)日：2018-04-12
申请号：US15724434
申请日：2017-10-04
Applicant: Japan Display Inc.
Inventor： Naoki TOKUDA
CPC classification number: H01L51/5212 , H01L27/3262 , H01L27/3265 , H01L27/3276 , H01L51/5209
Abstract: An organic EL display device includes a substrate on which a plurality of driver transistors are formed, a first wiring that supplies an electric voltage in accordance with a display image via one of the driver transistors, an organic EL film that emits light, an anode electrode, and an auxiliary electrode film including a first low resistance part, a second low resistance part separated from the first low resistance part, and a high resistance part disposed between the first low resistance part and the second low resistance part. The first low resistance part is electrically connected to the first wiring and the anode electrode. The second low resistance part forms an electrostatic capacitance between the anode electrode and itself. The high resistance part has an electric resistance higher than those of the first low resistance part and the second low resistance part.
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公开(公告)号：US20180061924A1
公开(公告)日：2018-03-01
申请号：US15640789
申请日：2017-07-03
Applicant: Japan Display Inc.
Inventor： Naoki TOKUDA
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：US20170039938A1
公开(公告)日：2017-02-09
申请号：US15235991
申请日：2016-08-12
Inventor： Naoki TOKUDA , Hiroshi KAGEYAMA , Masamitsu FURUIE
IPC: G09G3/3233 , 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：US20150333108A1
公开(公告)日：2015-11-19
申请号：US14811508
申请日：2015-07-28
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.
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公开(公告)号：US20140332781A1
公开(公告)日：2014-11-13
申请号：US14275915
申请日：2014-05-13
Applicant: Japan Display Inc.
Inventor： Naoki TOKUDA , Mitsuhide MIYAMOTO
CPC classification number: H01L27/3265 , H01L27/3258 , H01L51/5265 , H01L51/5271 , H01L2251/5315
Abstract: A display device comprising including a plurality of pixels arranged in the shape of a matrix above a substrate, and a plurality of thin film transistors arranged corresponding to each of the plurality of pixel having an organic EL layer, the device comprising; a planarized film covering the thin film transistor and a wire connected with the thin film transistor; a reflecting layer formed above the planarized film; a light path length expanded layer covering the reflecting layer; and a pixel transparent electrode formed above the light path length expanded layer.
Abstract translation: 一种显示装置，包括：在基板上方布置有矩阵形状的多个像素;以及多个与具有有机EL层的所述多个像素中的每一个对应排列的薄膜晶体管，所述器件包括： 覆盖薄膜晶体管的平坦化膜和与薄膜晶体管连接的导线; 形成在平坦化膜上方的反射层; 覆盖反射层的光路长度扩展层; 以及形成在光路长度扩展层上方的像素透明电极。
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