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公开(公告)号：US11818936B2
公开(公告)日：2023-11-14
申请号：US17492705
申请日：2021-10-04
发明人： Koji Ishizuya , Norifumi Kajimoto , Yojiro Matsuda
IPC分类号： H10K59/38 , G02B27/01 , G02B5/20 , H04N23/53 , H10K50/858
CPC分类号： H10K59/38 , G02B5/201 , G02B27/0172 , H04N23/53 , H10K50/858 , G02B2027/0178
摘要： A display device is provided that has pixels including a first pixel and a second pixel arranged to be adjacent to each other along a first direction. The pixels include a light emitting region and a color filter. Luminous efficacy of the first pixel is higher than that of the second pixel. In a plane view, a center position of each color filter is shifted in the first direction from a center position of a corresponding light emitting region, and a length parallel to the first direction of the color filter of the first pixel is longer than that of the second pixel. In the first direction, each first pixel is periodically arranged and a pitch of the color filter of each first pixel and a pitch of the light emitting region of each first pixel are different from each other.
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公开(公告)号：US20220320452A1
公开(公告)日：2022-10-06
申请号：US17703854
申请日：2022-03-24
发明人： Norifumi Kajimoto , Koji Ishizuya , Yojiro Matsuda
摘要： A light-emitting apparatus including: a first lower electrode; a second lower electrode; a functional layer covering the first lower electrode and the second lower electrode; and an upper electrode on the functional layer, the light-emitting apparatus further including a third lower electrode between the first lower electrode and the second lower electrode, wherein the third lower electrode has an inclined portion inclined with respect to an upper surface of the first lower electrode, and the third lower electrode, an insulating layer, the functional layer, and the upper electrode are arranged in this order in a direction perpendicular to the inclined portion.
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公开(公告)号：US20190123279A1
公开(公告)日：2019-04-25
申请号：US16162203
申请日：2018-10-16
发明人： Norifumi Kajimoto , Tetsuo Takahashi , Koji Ishizuya , Itaru Takaya , Hirokazu Miyashita , Takayuki Ito , Hiroaki Sano
摘要： A light-emitting device includes a plurality of organic EL elements. Each of the organic EL elements includes a reflection electrode, a hole transport region, an electron-trapping luminescent layer, and a light extraction electrode in this order. The hole transport region has a sheet resistance of 4.0×107 Ω/sq. or more at a current of 0.1 nA/pixel, and the total thickness of the hole transport region and the electron-trapping luminescent layer is equivalent to an optical path length enabling emission from the electron-trapping luminescent layer to be enhanced.
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公开(公告)号：US11502276B2
公开(公告)日：2022-11-15
申请号：US16792019
申请日：2020-02-14
发明人： Koji Ishizuya , Hiroaki Sano
IPC分类号： H01L51/50 , H01L51/52 , H01L27/32 , G02F1/133 , G02F1/1335
摘要： An organic electroluminescent element includes a first electrode, a second electrode, and an organic compound layer disposed between the first and second electrodes. A protective layer and a planarization layer are disposed in this order on the light emission side of whichever of the first and second electrodes is closer to the light emission side. A surface of the protective layer adjacent to the planarization layer has an uneven shape. The planarization layer is in contact with the protective layer. A surface of the planarization layer away from the protective layer is flat. The refractive index of the planarization layer is equal to or lower than that of the protective layer and equal to or higher than that of a light emission medium in contact with the planarization layer.
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公开(公告)号：US20210118959A1
公开(公告)日：2021-04-22
申请号：US17022687
申请日：2020-09-16
发明人： Hiroaki Sano , Koji Ishizuya
摘要： A light-emitting device comprising first and second light-emitting elements in a display region, and first and second dummy elements in a dummy region is provided. Each of the light-emitting elements, and the dummy elements includes a reflector arranged, a first electrode arranged above the reflector, a light-emitting layer arranged above the first electrode, and a second electrode arranged above the light-emitting layer. A difference between a distance from the reflector to the light-emitting layer in the first light-emitting element and a distance from the reflector to the light-emitting layer in the second light-emitting element is larger than a difference between a distance from the reflector to the light-emitting layer in the first dummy element and a distance from the reflector to the light-emitting layer in the second dummy element.
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公开(公告)号：US10985323B2
公开(公告)日：2021-04-20
申请号：US16162203
申请日：2018-10-16
发明人： Norifumi Kajimoto , Tetsuo Takahashi , Koji Ishizuya , Itaru Takaya , Hirokazu Miyashita , Takayuki Ito , Hiroaki Sano
IPC分类号： H01L51/00 , H01L51/50 , H01L51/52 , H01L27/32 , H01L27/30 , C07C211/01 , C07C211/43 , C07C211/00 , C07C211/33 , H01L27/146
摘要： A light-emitting device includes a plurality of organic EL elements. Each of the organic EL elements includes a reflection electrode, a hole transport region, an electron-trapping luminescent layer, and a light extraction electrode in this order. The hole transport region has a sheet resistance of 4.0×107 Ω/sq. or more at a current of 0.1 nA/pixel, and the total thickness of the hole transport region and the electron-trapping luminescent layer is equivalent to an optical path length enabling emission from the electron-trapping luminescent layer to be enhanced.
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公开(公告)号：US10790465B2
公开(公告)日：2020-09-29
申请号：US16523798
申请日：2019-07-26
发明人： Tomokazu Kotake , Hirokazu Miyashita , Itaru Takaya , Takayuki Ito , Koji Ishizuya , Norifumi Kajimoto
摘要： A white organic electroluminescent (EL) element includes, in sequence, an anode, a first light-emitting layer that is a blue-light-emitting layer, a hole-blocking layer, an electron transport layer, and a cathode. The hole-blocking layer is adjacent to the first light-emitting layer and the electron transport layer and formed of a hydrocarbon. The electron transport layer is formed of a nitrogen-containing heterocyclic compound. The first light-emitting layer contains a first host and a first dopant that emits blue fluorescent light. Relations (a), (b), and (c) are satisfied. LUMO(H1)>LUMO(D1) (a) 0.1
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公开(公告)号：US20200044175A1
公开(公告)日：2020-02-06
申请号：US16523798
申请日：2019-07-26
发明人： Tomokazu Kotake , Hirokazu Miyashita , Itaru Takaya , Takayuki Ito , Koji Ishizuya , Norifumi Kajimoto
摘要： A white organic electroluminescent (EL) element includes, in sequence, an anode, a first light-emitting layer that is a blue-light-emitting layer, a hole-blocking layer, an electron transport layer, and a cathode. The hole-blocking layer is adjacent to the first light-emitting layer and the electron transport layer and formed of a hydrocarbon. The electron transport layer is formed of a nitrogen-containing heterocyclic compound. The first light-emitting layer contains a first host and a first dopant that emits blue fluorescent light. Relations (a), (b), and (c) are satisfied. LUMO(H1)>LUMO(D1) (a) 0.1
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公开(公告)号：US20190305051A1
公开(公告)日：2019-10-03
申请号：US16370541
申请日：2019-03-29
发明人： Tetsuo Takahashi , Koji Ishizuya , Norifumi Kajimoto , Hiroaki Sano , Akira Okita , Etsuro Kishi , Masaki Kurihara , Daisuke Shimoyama
摘要： The present invention provides a light-emitting device including a substrate, a first EL element, and a second EL element, the first EL element and the second EL element each including a lower electrode, an organic compound layer including a light-emitting layer, an upper electrode, and a color filter in this order from the substrate, and an insulating layer that covers an end portion of the lower electrode. A first color filter of the first EL element and a second color filter of the second EL element overlap each other when viewed in plan in an overlapping region, and an inclined portion closest to the first EL element among inclined portions of the insulating layer of the second EL element and the overlapping region overlap each other when viewed in plan.
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公开(公告)号：US20150280175A1
公开(公告)日：2015-10-01
申请号：US14668660
申请日：2015-03-25
发明人： Takayuki Ito , Itaru Takaya , Seiji Mashimo , Koji Ishizuya , Jun Kamatani , Naoki Yamada , Tetsuya Kosuge , Hirokazu Miyashita
CPC分类号： H01L51/5253 , H01L51/0001 , H01L51/0025 , H01L51/0052 , H01L51/0054 , H01L51/0055 , H01L51/0057 , H01L51/0058 , H01L51/006 , H01L51/0072 , H01L51/008 , H01L51/009 , H01L2251/56
摘要： This invention provides a method for manufacturing an organic light emitting element in which damages to members constituting the organic light emitting element are suppressed and a protective layer with few defects is formed by performing cleaning with liquid containing water. The manufacturing method according to this invention is a method for manufacturing an organic light emitting element including a process of preparing a lower electrode, a process of forming an organic compound layer on the lower electrode, a process of forming an upper electrode on the organic compound layer; and a process of forming a first protective layer on the upper electrode, in which the method includes, after the process of forming the organic compound layer, a process of cleaning at least one of the organic compound layer, the upper electrode, and the first protective layer with liquid containing water.
摘要翻译： 本发明提供一种制造有机发光元件的方法，其中通过用含有水的液体进行清洗，对构成有机发光元件的构件的损伤被抑制并形成具有少量缺陷的保护层。 根据本发明的制造方法是一种制造有机发光元件的方法，包括制备下电极的方法，在下电极上形成有机化合物层的工艺，在有机化合物上形成上电极的工艺 层; 以及在所述上部电极上形成第一保护层的工序，所述方法在形成所述有机化合物层的工序之后，进行清洗所述有机化合物层，所述上部电极和所述第一保护层中的至少一个的工序 保护层含有含水的液体。
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