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公开(公告)号：US11462715B2
公开(公告)日：2022-10-04
申请号：US17004867
申请日：2020-08-27
Applicant: Japan Display Inc.
Inventor： Hiroki Ohara , Akinori Kamiya
IPC: H01L51/52 , H01L27/12 , H01L27/14 , H01L27/32 , H01L29/786 , G02F1/133 , G06F1/16 , G09F9/30 , G02F1/1333 , G02F1/1335
Abstract: A display device in one embodiment according to the present invention includes a first region including a light emitting layer, a first nitride insulating layer over the light emitting layer, a first organic insulating layer over the first nitride insulating layer, a second nitride insulating layer over the first organic insulating layer, and a third nitride insulating layer over the second nitride insulating layer. The second nitride insulating layer is in contact with the first organic insulating layer and the third nitride insulating layer. An absolute value of a stress of the second nitride insulating layer is greater than or equal to an absolute value of a stress of the first nitride insulating layer and less than an absolute value of a stress of the third nitride insulating layer.
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公开(公告)号：US11205760B2
公开(公告)日：2021-12-21
申请号：US15919345
申请日：2018-03-13
Applicant: Japan Display Inc.
Inventor： Akinori Kamiya , Kota Makishi
IPC: H01L51/50 , H01L27/32 , G09G3/3233 , H01L51/52 , H01L51/56 , G09G3/3208
Abstract: A display device includes a substrate, a plurality of pixels above the substrate, each of the plurality of pixels including a first electrode, a light emitting layer above the first electrode, and a second electrode above the light emitting layer, a display region including the plurality of pixels, a first organic insulating layer located between the substrate and the light emitting layer, and a sealing layer above the second electrode and covering the plurality of pixels. The first organic insulating layer includes a first opening part surrounding the display region, the sealing layer has a first inorganic insulating layer, a second organic insulating layer and a second inorganic insulating layer, the first inorganic insulating layer and the second inorganic insulating layer cover the first opening part, a second opening part passing through the first inorganic insulating layer and the second inorganic insulating layer.
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公开(公告)号：US11054937B2
公开(公告)日：2021-07-06
申请号：US16668301
申请日：2019-10-30
Applicant: Japan Display Inc.
Inventor： Akinori Kamiya
Abstract: A display device is provided including a pixel region arranging a plurality of pixels on a planar surface on the first side of a substrate, a sealing layer covering a surface on the opposite side of the substrate side of the pixel region, a first detection electrode extending in a direction on a layer above the pixel region on the side where the sealing layer is provided, and a second detection electrode extending in a direction intersecting with the direction in another layer different from that of the first detection electrode in a layer above the pixel region. The sealing layer including at least an organic resin film, a first inorganic insulating film, and a second inorganic insulating film, the first detection electrode or the second detection electrode is provided above the organic resin layer, the other electrode is provided below the organic resin layer.
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公开(公告)号：US11031451B2
公开(公告)日：2021-06-08
申请号：US16596883
申请日：2019-10-09
Applicant: Japan Display Inc.
Inventor： Hiraaki Kokame , Akinori Kamiya
Abstract: An organic EL display device according to an embodiment of the present invention includes: a substrate, a plurality of pixels that are disposed on the substrate, a first inorganic insulating layer that covers the plurality of pixels, a conductive layer that is disposed on a side of the first inorganic insulating layer opposite to the plurality of pixels and covers the plurality of pixels, and a second inorganic insulating layer that is disposed on a side of the conductive layer opposite to the first inorganic insulating layer and covers the plurality of pixels.
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Patent Agency Ranking
公开(公告)号：US10243168B2
公开(公告)日：2019-03-26
申请号：US15926775
申请日：2018-03-20
Applicant: Japan Display Inc.
Inventor： Akinori Kamiya , Daisuke Kato
Abstract: A display device includes a light-emitting element layer that emits light with a luminance controlled for each of a plurality of unit pixels constituting an image, and a sealing layer provided on the light-emitting element layer and including a plurality of layers. The plurality of layers of the sealing layer includes at least an inorganic layer provided on the light-emitting element layer, an organic layer provided on the inorganic layer, and an inorganic layer that is an uppermost layer. A density of the inorganic layer that is the uppermost layer in a thickness direction changes in the thickness direction.
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公开(公告)号：US10135029B2
公开(公告)日：2018-11-20
申请号：US15408925
申请日：2017-01-18
Applicant: Japan Display Inc.
Inventor： Akinori Kamiya
Abstract: A display device includes: a light emitting element including a light emitting layer, and a first electrode and a second electrode that hold the light emitting layer therebetween; and a sealing layer on the light emitting element, wherein the sealing layer includes an organic layer, and a first inorganic layer and a second inorganic layer that hold the organic layer from an upper side and a lower side. A peripheral part of the first inorganic layer and a peripheral part of the second inorganic layer are connected around an outer perimeter of the organic layer and vertically overlap with each other so as not to cover an edge surface of each other's from a lateral side. At least one of the first inorganic layer and the second inorganic layer is an Aluminum Oxide film.
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公开(公告)号：US10103206B2
公开(公告)日：2018-10-16
申请号：US15379892
申请日：2016-12-15
Applicant: Japan Display Inc.
Inventor： Akinori Kamiya
Abstract: Provided is a manufacturing method of a display device, which includes: forming a first electrode; forming a first insulating film covering an edge portion of the first electrode and having an opening portion overlapping with the first electrode; forming an EL layer over the first electrode and the first insulating film; forming a second electrode over the EL layer; forming a second insulating film over the second electrode so as to overlap with the first insulating film; removing the second insulating film; and forming a sealing film over the second electrode.
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公开(公告)号：US09960385B2
公开(公告)日：2018-05-01
申请号：US15278731
申请日：2016-09-28
Applicant: Japan Display Inc.
Inventor： Akinori Kamiya
CPC classification number: H01L51/5253 , H01L27/322 , H01L51/5234 , H01L51/5246 , H01L2251/303
Abstract: Due to insufficient moisture inside a panel it may take a long time for a screening. An organic EL display device includes a light emitting region including a lower electrode, an organic EL layer, and an upper electrode, a barrier film formed so as to cover the light emitting region, and a moisture retaining film which is formed on the barrier film and is moisture retentive.
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公开(公告)号：US09947897B2
公开(公告)日：2018-04-17
申请号：US15416085
申请日：2017-01-26
Applicant: Japan Display Inc.
Inventor： Akinori Kamiya
IPC: H01L51/52 , H01L51/56 , H01L27/32 , G02F1/1345
CPC classification number: H01L51/5253 , G02F1/13452 , H01L27/3244 , H01L27/3276 , H01L51/524 , H01L51/5246 , H01L51/56 , H01L2227/323
Abstract: A substrate including a light-emitting element and a terminal for connection to the outside is prepared. The light-emitting element includes a light-emitting layer, an anode, and a cathode. The anode and the cathode interpose the light-emitting layer therebetween. A sealing layer is formed on the substrate so as to cover the light-emitting element and the terminal. An amorphous carbon film is formed on the sealing layer so as to cover a region above the light-emitting element and avoid a region above the terminal. The sealing layer is dry-etched so as to expose the terminal from the sealing layer using the amorphous carbon film as a mask. The amorphous carbon film is removed.
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