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公开(公告)号：US20180247986A1
公开(公告)日：2018-08-30
申请号：US15904584
申请日：2018-02-26
Applicant: Japan Display Inc.
Inventor： Norihisa MAEDA
CPC classification number: H01L27/3246 , H01L27/3244 , H01L27/3283 , H01L51/0015 , H01L51/0026 , H01L51/5056 , H01L51/5072
Abstract: A method of manufacturing an organic EL display device according to an embodiment of the present invention includes: forming a plurality of lower electrodes respectively corresponding to a plurality of pixels on a substrate; forming a plurality of banks, which partition the pixels, between adjacent lower electrodes on the substrate; forming an organic material layer on the lower electrodes and the banks; and selectively irradiating the organic material layer on the banks with an energy ray from a direction of a surface of the organic material layer opposite to a surface of the organic material layer in contact with the banks.
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公开(公告)号：US20180138248A1
公开(公告)日：2018-05-17
申请号：US15794036
申请日：2017-10-26
Applicant: Japan Display Inc.
Inventor： Norihisa MAEDA
CPC classification number: H01L27/3211 , H01L27/3246 , H01L51/5012 , H01L51/5056 , H01L51/5064 , H01L51/5206 , H01L51/5253 , H01L51/5265 , H01L2251/301 , H01L2251/558 , H01L2251/566 , H05B33/10
Abstract: A manufacturing method of an organic EL display device including a plurality of subpixels where light emitting layers that emit first to third lights are formed, includes forming a reflective film that reflects light, forming a lower electrode that has conductivity and light transmitting characteristics, a first process where, in the subpixels where the light emitting layers that emit the first and second lights are formed, a part of an optical path length adjusting layer is formed at the same time, a second process where, in the subpixels where the light emitting layers that emit the first and third lights are formed, another part of the optical path length adjusting layer is formed at the same time so as to set its thickness different from that of the one formed in the first process, and forming an upper electrode having conductivity, light transmitting characteristics, and reflective characteristics.
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公开(公告)号：US20170104036A1
公开(公告)日：2017-04-13
申请号：US15275960
申请日：2016-09-26
Applicant: Japan Display Inc.
Inventor： Norihisa MAEDA
CPC classification number: H01L27/3211 , H01L27/322 , H01L27/3244 , H01L51/5203 , H01L51/5262 , H01L51/5265 , H01L2251/5315 , H01L2251/558
Abstract: A display device includes a plurality of pixel electrodes that correspond to the plurality of unit pixels, respectively, and are formed of a plurality of groups defined for the plurality of colors, a self-light emitting element layer, a common electrode, a plurality of optical path length adjusting layers, and a semi-light transmitting film that is laminated so as to be electrically connected to the common electrode and is conductive and has both of light transmission characteristics and light reflection characteristics. The plurality of optical path length adjusting layers having different thicknesses depending on which of the plurality of groups each of the plurality of optical path length adjusting layers belongs to. The display device having a microcavity structure formed such that light having a wavelength corresponding to each of the thicknesses resonates between corresponding one of the plurality of pixel electrodes and the semi-light transmitting film.
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公开(公告)号：US20160104760A1
公开(公告)日：2016-04-14
申请号：US14877700
申请日：2015-10-07
Applicant: Japan Display Inc.
Inventor： Norihisa MAEDA
CPC classification number: H01L51/5228 , H01L27/3279
Abstract: A display device includes a plurality of pixels arranged on a substrate, a plurality of pixel electrodes, wherein each pixel electrode of the plurality of pixel electrodes corresponds to a pixel of the plurality of pixels, a bank between adjacent pixel electrodes of the plurality of pixel electrodes, wherein the bank exposes a part of the pixel electrodes, an electroluminescent layer on each of the plurality of pixel electrodes, a common electrode above the bank and the electroluminescent layer, a plurality of insulators on the exposed regions of the pixel electrodes, wherein the common electrode is between the insulators and the pixel electrodes, and an auxiliary wiring on the common electrode between adjacent insulators of the plurality of insulators, wherein a top surface of each insulator of the plurality of insulators is farther from the substrate than a top surface of the common electrode.
Abstract translation: 显示装置包括布置在基板上的多个像素，多个像素电极，其中所述多个像素电极中的每个像素电极对应于所述多个像素的像素，所述多个像素中的相邻像素电极之间的堤 电极，其中所述堤暴露所述像素电极的一部分，所述多个像素电极中的每一个上的电致发光层，所述堤上的公共电极和所述电致发光层，在所述像素电极的所述暴露区域上的多个绝缘体，其中 所述公共电极位于所述绝缘体和所述像素电极之间，以及在所述公共电极上的所述多个绝缘体的相邻绝缘体之间的辅助布线，其中，所述多个绝缘体中的每个绝缘体的顶表面比所述基板远离所述基板 的公共电极。
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公开(公告)号：US20170358770A1
公开(公告)日：2017-12-14
申请号：US15686303
申请日：2017-08-25
Applicant: Japan Display Inc.
Inventor： Norihisa MAEDA
CPC classification number: H01L51/5228 , H01L27/3279
Abstract: A display device includes a plurality of pixels arranged on a substrate, a plurality of pixel electrodes, wherein each pixel electrode of the plurality of pixel electrodes corresponds to a pixel of the plurality of pixels, a bank between adjacent pixel electrodes of the plurality of pixel electrodes, wherein the bank exposes a part of the pixel electrodes, an electroluminescent layer on each of the plurality of pixel electrodes, a common electrode above the bank and the electroluminescent layer, a plurality of insulators on the exposed regions of the pixel electrodes, wherein the common electrode is between the insulators and the pixel electrodes, and an auxiliary wiring on the common electrode between adjacent insulators of the plurality of insulators, wherein a top surface of each insulator of the plurality of insulators is farther from the substrate than a top surface of the common electrode.
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Patent Agency Ranking
公开(公告)号：US20170250231A1
公开(公告)日：2017-08-31
申请号：US15420704
申请日：2017-01-31
Applicant: Japan Display Inc.
Inventor： Norihisa MAEDA , Takahiro USHIKUBO
CPC classification number: H01L27/3206 , H01L27/3213 , H01L27/322 , H01L51/5218 , H01L51/5265 , H01L51/5271
Abstract: A reflecting layer is provided for each of a white pixel PW and a plurality of chromatic color pixels PR, PG and PB. A semitransparent reflecting layer is provided for each of the white pixel PW and the plurality of chromatic color pixels PR, PG and PB. The distance between the reflecting layer and the semitransparent reflecting layer in the white pixel PW is larger than the largest distance among distances between the reflecting layer and the semitransparent reflecting layer in the chromatic color pixels PR, PG, PB. Such display device can suppress increase in manufacturing cost and obtain both merits of optical micro-cavity structure and of the white pixel.
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公开(公告)号：US20200227492A1
公开(公告)日：2020-07-16
申请号：US16731173
申请日：2019-12-31
Applicant: Japan Display Inc.
Inventor： Norihisa MAEDA
Abstract: An electroluminescence display device includes an array of pixels in which pixels emitting light of a specific color are regularly aligned and which includes at least a plurality of pixels emitting light of different colors, and in which, in the pixel, a common electrode, a first blocking layer, a light emitting layer, a second blocking layer, and a pixel electrode are laminated in this order when viewed from a viewing direction, at least the light emitting layer, the second blocking layer, and the pixel electrode are provided independently for each pixel, adjacent pixels are separated by a bank, and, at least in a part of the array of pixels, on the bank, the second blocking layer belonging to another pixel having a light-emission color different from that of one pixel is partially overlapped on the light emitting layer belonging to the one pixel.
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公开(公告)号：US20190157358A1
公开(公告)日：2019-05-23
申请号：US16194987
申请日：2018-11-19
Applicant: Japan Display Inc.
Inventor： Norihisa MAEDA
Abstract: There is provided an organic EL display device having a first subpixel region and a second subpixel region. The organic EL display device includes a first light emission film, a second light emission film, an upper electrode, a cap layer configured to include a high refractive index film, a middle refractive index film, and a low refractive index film whose refractive indices are different from one another on an upper layer side of the upper electrode, and the low refractive index film is disposed to be distant from the substrate more than the other films included in the cap layer are, in the first and second subpixel regions. The middle refractive index film of the first subpixel region is formed to be thicker than the middle refractive index film of the second subpixel region.
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公开(公告)号：US20180374914A1
公开(公告)日：2018-12-27
申请号：US15989278
申请日：2018-05-25
Applicant: Japan Display Inc.
Inventor： Norihisa MAEDA
CPC classification number: H01L27/3279 , G09G3/006 , G09G3/3233 , G09G2300/0426 , G09G2300/0819 , G09G2300/0852 , H01L22/20 , H01L27/124 , H01L27/1248 , H01L27/1255 , H01L27/3248 , H01L27/3258 , H01L27/3262 , H01L27/3265 , H01L51/5206 , H01L51/5221 , H01L51/5228 , H01L51/56 , H01L2227/323 , H01L2251/558 , H01L2251/566
Abstract: Disclosed is a display device possessing: a plurality of pixels arranged in a matrix form over a substrate and each having a pixel electrode; a first wiring and a second wiring over the substrate and sandwiching the pixels; a first contact electrode and a second contact electrode respectively covering at least a part of the first wiring and at least a part of the second wiring; and an opposing electrode over and overlapping with the pixel electrodes, the first contact electrode, and the second contact electrode, the opposing electrode being shared by the plurality of pixels. The first wiring and the second wiring are spaced from each other and electrically connected to the opposing electrode through the first contact electrode and the second contact electrode, respectively.
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10.发明申请公开(公告)号：US20180108869A1
公开(公告)日：2018-04-19
申请号：US15783210
申请日：2017-10-13
Applicant: Japan Display Inc.
Inventor： Norihisa MAEDA
Abstract: Disclosed is a display device including: a substrate; and a first light-emitting element and a second light-emitting element over the substrate and adjacent to each other. The first light-emitting element and the second light-emitting element each possess a first electrode, an EL layer over the first electrode, a second electrode over the EL layer, and an optical adjustment layer over the second electrode. The optical adjustment layer over the first light-emitting element is different in refraction index from the optical adjustment layer over the second light-emitting element. A first material included in the optical adjustment layer may be the same in composition but different in chemical structure between before and after the light irradiation. Alternatively, the first material may be the same in composition but different in phase structure between before and after the light irradiation.
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