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公开(公告)号：US20170278911A1
公开(公告)日：2017-09-28
申请号：US15451796
申请日：2017-03-07
Applicant: Japan Display Inc.
Inventor： Hironori TOYODA , Toshihiro Sato
IPC: H01L27/32
CPC classification number: H01L27/3246 , B82Y20/00 , H01L27/322 , H01L33/50 , H01L33/504 , H01L33/60 , H01L51/50 , H01L51/5268 , H01L51/5271 , H01L2251/5369 , Y10S977/774 , Y10S977/824 , Y10S977/952
Abstract: A display device includes a pixel electrode, a pixel isolation insulating film in which an opening through which the pixel electrode is exposed at a bottom is formed, and a light-emitting layer formed inside the opening. The pixel isolation insulating film contains particles that receive light emitted from the light-emitting layer and propagate light in a direction different from that of the light emitted from the light-emitting layer.
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公开(公告)号：US20160204187A1
公开(公告)日：2016-07-14
申请号：US15073857
申请日：2016-03-18
Applicant: Japan Display Inc.
Inventor： Toshihiro SATO , Hironori TOYODA , Takeshi OOKAWARA
CPC classification number: H01L27/3279 , H01L27/322 , H01L27/3246 , H01L51/0015 , H01L51/5243 , H01L2227/323
Abstract: A substrate on which a plurality of pixel electrodes are disposed is prepared. An organic electroluminescent film 22 is formed with the inclusion of a common layer that continuously covers the plural pixel electrodes. A common electrode is formed on the organic electroluminescent film. The common layer is irradiated with an energy ray above areas between the respective adjacent pixel electrodes with the avoidance of irradiation above the plural pixel electrodes. An electric conductivity of the common layer is reduced above the areas between the respective adjacent pixel electrodes, by irradiation of the energy ray. With this configuration, a current leakage can be prevented between the adjacent pixels.
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公开(公告)号：US20150214279A1
公开(公告)日：2015-07-30
申请号：US14683628
申请日：2015-04-10
Applicant: JAPAN DISPLAY INC.
Inventor： Toshihiro SATO , Hironori TOYODA , Jun FUJIYOSHI
CPC classification number: H01L27/322 , H01L27/3218 , H01L27/3246 , H01L27/3248 , H01L27/3262 , H01L33/10 , H01L51/5036 , H01L51/5206 , H01L51/5221 , H01L51/5228 , H01L51/5234 , H01L51/5246 , H01L51/5253 , H01L51/5271 , H01L51/5284 , H01L2251/301 , H01L2251/305 , H01L2251/308 , H01L2251/5307
Abstract: There is provided an EL display device of a color filter system which obtains sufficient brightness and contrast while making it difficult to generate a color mixture even if pixels become fine. An EL display device 100 according to the present invention includes a first substrate 1, a circuit layer 2 formed on the first substrate 1, a color selection reflection layer 11 formed in an upper layer of the circuit layer 2, lower electrodes 5 formed in an upper layer of the color selection reflection layer 11, a white light emission EL layer 7 formed in an upper layer of the lower electrodes 5, an upper electrode 8 formed in an upper layer of the EL layer 7, and a sealing layer 9 formed in an upper layer of the upper electrode 8.
Abstract translation: 提供了一种滤色器系统的EL显示装置，其获得足够的亮度和对比度，同时即使像素变细也难以产生混色。 根据本发明的EL显示装置100包括第一基板1，形成在第一基板1上的电路层2，形成在电路层2的上层中的选色反射层11，形成在电路层2中的下电极5 彩色选择反射层11的上层，形成在下电极5的上层中的白色发光EL层7，形成在EL层7的上层中的上电极8和形成在 上电极8的上层。
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公开(公告)号：US20190165295A1
公开(公告)日：2019-05-30
申请号：US16203711
申请日：2018-11-29
Applicant: Japan Display Inc.
Inventor： Hironori TOYODA
Abstract: A display device according to an embodiment of the present invention includes: a substrate; a lower electrode provided above the substrate; an insulating film provided above the lower electrode and having an opening; an organic layer arranged at least partly in the opening and electrically connected to the lower electrode; and an upper electrode electrically connected above the organic layer; the organic layer includes a hole injection layer, the opening includes a first area arranged to a center side, and a second area arranged on an outer side of the first area, and the hole injection layer has a higher p-dopant concentration in the first area than in the second area.
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公开(公告)号：US20190006625A1
公开(公告)日：2019-01-03
申请号：US15996571
申请日：2018-06-04
Applicant: Japan Display Inc.
Inventor： Hironori TOYODA
Abstract: Disclosed is a light-emitting element including a reflective electrode, a light-transmitting electrode over the reflective electrode, a partition wall over the light-transmitting electrode, the partition wall having a first opening and a second opening which overlap with the light-transmitting electrode, an electroluminescence layer over the first opening and the second opening, and an opposing electrode over the electroluminescence layer. A thickness of the light-transmitting electrode in a region overlapping with the first opening is smaller than a thickness of the light-transmitting electrode in a region overlapping with the second region.
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Patent Agency Ranking
公开(公告)号：US20170125727A1
公开(公告)日：2017-05-04
申请号：US15401382
申请日：2017-01-09
Applicant: Japan Display Inc.
Inventor： Toshihiro SATO , Hironori TOYODA
CPC classification number: H01L51/5246 , H01L27/3211 , H01L27/3213 , H01L27/3246 , H01L27/3248 , H01L27/3251 , H01L27/3258 , H01L27/3276 , H01L51/504 , H01L51/5044 , H01L51/5221 , H01L51/5234 , H01L51/5243 , H01L51/5253 , H01L51/5256 , H01L51/5284 , H01L2251/301 , H01L2251/558
Abstract: An organic electroluminescence display device includes: a lower electrode that is made of a conductive inorganic material and formed in each of pixels arranged in a matrix in a display area a light-emitting organic layer that is in contact with the lower electrode and made of a plurality of different organic material layers including a light emitting layer emitting light; an upper electrode that is in contact with the light-emitting organic layer, formed so as to cover the whole of the display area, and made of a conductive inorganic material; and a conductive organic layer that is in contact with the upper electrode, formed so as to cover the whole of the display area, and made of a conductive organic material.
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公开(公告)号：US20160233275A1
公开(公告)日：2016-08-11
申请号：US15017213
申请日：2016-02-05
Applicant: Japan Display Inc.
Inventor： Hironori TOYODA
CPC classification number: H01L27/3232 , H01L51/005 , H01L51/0067 , H01L51/0072 , H01L51/0073 , H01L51/5044 , H01L51/5218
Abstract: Provided is an organic EL display device which includes an insulating surface, an anode electrode formed over the insulating surface, an organic layer formed over the anode electrode; a cathode electrode formed over the organic layer; and a photochromic layer in contact with the cathode electrode or the anode electrode, where the photochromic layer has a light-absorbing property with respect to a specific wavelength region.
Abstract translation: 提供了一种有机EL显示装置，其包括绝缘表面，形成在绝缘表面上的阳极电极，形成在阳极电极上的有机层; 形成在有机层上的阴极; 以及与阴极电极或阳极电极接触的光致变色层，其中光致变色层相对于特定波长区域具有光吸收特性。
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公开(公告)号：US20210408449A1
公开(公告)日：2021-12-30
申请号：US17468999
申请日：2021-09-08
Applicant: Japan Display Inc.
Inventor： Toshihiro SATO , Hironori TOYODA
Abstract: An organic electroluminescence display device includes: a lower electrode that is made of a conductive inorganic material and formed in each of pixels arranged in a matrix in a display area; a light-emitting organic layer that is in contact with the lower electrode and made of a plurality of different organic material layers including a light-emitting layer emitting light; an upper electrode that is in contact with the light-emitting organic layer, formed so as to cover the whole of the display area, and made of a conductive inorganic material; and a conductive organic layer that is in contact with the upper electrode, formed so as to cover the whole of the display area, and made of a conductive organic material.
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公开(公告)号：US20180294431A1
公开(公告)日：2018-10-11
申请号：US15920598
申请日：2018-03-14
Applicant: Japan Display Inc.
Inventor： Hironori TOYODA , Takahiro USHIKUBO
Abstract: An organic EL display device includes an anode, an organic light-emitting unit formed on the anode, and a cathode formed on the organic light-emitting unit and containing In. The organic light-emitting unit includes a light-emitting layer, and an electron injection layer formed between the cathode and the light-emitting layer, and an In concentration in layers of the organic light-emitting unit other than the electron injection layer is equal to or less than one-twentieth that in the cathode.
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公开(公告)号：US20180294424A1
公开(公告)日：2018-10-11
申请号：US15938045
申请日：2018-03-28
Applicant: Japan Display Inc.
Inventor： Hironori TOYODA
CPC classification number: H01L51/506 , H01L27/3211 , H01L27/3246 , H01L51/002 , H01L51/5064 , H01L51/56 , H01L2227/323
Abstract: To provide a display device including a plurality of pixels; a light emitting element layer formed across the plurality of pixels; and a bank formed so as to separately define adjacent pixels among the plurality of pixels, wherein the light emitting element layer includes a p-doped hole transport layer containing p-dopant, and the p-doped hole transport layer is formed on each of the pixels such that the p-doped hole transport layers on the respective adjacent pixels are separated from each other on the bank.
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