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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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公开(公告)号：US10290829B2
公开(公告)日：2019-05-14
申请号：US15372598
申请日：2016-12-08
Applicant: Japan Display Inc.
Inventor： Tetsuya Nagata , Hiraaki Kokame
Abstract: A display device is disclosed including an array substrate including a plurality of pixels arranged in a display region, the display region including a planar region and a curved region, and a sealing layer covering the plurality of pixels and arranged across the display region, wherein the sealing layer includes a first organic insulation layer and a second organic insulation layer, a film thickness of the first organic insulation layer is more than a film thickness of the second organic insulation layer in the planar region, a film thickness of the second organic insulation layer is more than a film thickness of the first organic insulation layer in the curved region, and a hardness of the second organic insulation layer is lower than a hardness of the first organic insulation layer.
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公开(公告)号：US11335887B2
公开(公告)日：2022-05-17
申请号：US17123224
申请日：2020-12-16
Applicant: Japan Display Inc.
Inventor： Hiraaki Kokame
Abstract: A display device according to the present invention includes a display region arranged with a plurality of pixels, and a sealing layer covering the display region, wherein the sealing layer includes an insulation layer having a density pattern, the density pattern is a pattern including a low density region and a high density region, the low density region has the insulation layer with a lower density than an average density within the display region of the insulation layer, and the high density region has the insulation layer with a higher density than an average density within the display region of the insulation layer.
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公开(公告)号：US10910591B2
公开(公告)日：2021-02-02
申请号：US15475688
申请日：2017-03-31
Applicant: Japan Display Inc.
Inventor： Yukio Matsumoto , Hiraaki Kokame
Abstract: An organic EL display device according to an embodiment of the present invention includes a substrate on which a display region including a plurality of pixels including an organic EL layer and an external region that surrounds the display region are formed, at least one separating wall that is formed at a part of the external region on the substrate, and an organic layer that covers at least a part of the display region, includes an organic material, and is formed on a display region side of the at least one separating wall. A wall surface of the display region side of the at least one separating wall includes an inclined surface that is inclined toward the display region side as it is extended away from the substrate.
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公开(公告)号：US20190326549A1
公开(公告)日：2019-10-24
申请号：US16453123
申请日：2019-06-26
Applicant: Japan Display Inc.
Inventor： Hiraaki Kokame , Akinori Kamiya , Naoya Kubota
Abstract: A display device includes a plurality of pixels arranged on one surface of a substrate within a display region, each of the plurality of pixels including a light emitting element, a partition wall layer including a first partition wall, a second partition wall and a third partition wall, a sealing layer arranged on the plurality of pixels and the partition wall layer, the sealing layer including a first inorganic insulating layer, an organic insulating layer and a second inorganic insulating layer, a protective layer arranged on the sealing layer, and a plurality of connection terminals exposed from the protective layer. The first partition wall surrounds each of the plurality of pixels, the second partition wall surrounds the display region, the third partition wall surrounds the outside of the second partition wall. A groove part is included between the second partition wall and the third partition wall.
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Patent Agency Ranking
公开(公告)号：US10903450B2
公开(公告)日：2021-01-26
申请号：US16920826
申请日：2020-07-06
Applicant: Japan Display Inc.
Inventor： Hiraaki Kokame
Abstract: A display device according to the present invention includes a display region arranged with a plurality of pixels, and a sealing layer covering the display region, wherein the sealing layer includes an insulation layer having a density pattern, the density pattern is a pattern including a low density region and a high density region, the low density region has the insulation layer with a lower density than an average density within the display region of the insulation layer, and the high density region has the insulation layer with a higher density than an average density within the display region of the insulation layer.
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公开(公告)号：US10270060B2
公开(公告)日：2019-04-23
申请号：US16178936
申请日：2018-11-02
Applicant: Japan Display Inc.
Inventor： Hiraaki Kokame
Abstract: A display device according to the present invention includes a display region arranged with a plurality of pixels, and a sealing layer covering the display region, wherein the sealing layer includes an insulation layer having a density pattern, the density pattern is a pattern including a low density region and a high density region, the low density region has the insulation layer with a lower density than an average density within the display region of the insulation layer, and the high density region has the insulation layer with a higher density than an average density within the display region of the insulation layer.
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公开(公告)号：US09929378B2
公开(公告)日：2018-03-27
申请号：US15294927
申请日：2016-10-17
Applicant: Japan Display Inc.
Inventor： Hiraaki Kokame , Daisuke Kato
CPC classification number: H01L51/5259 , H01L27/3258 , H01L27/3276 , H01L51/524 , H01L51/5253
Abstract: Provided is a highly reliable organic EL display device. The organic EL display device includes a first insulating layer; and a display portion provided on the first insulating layer, the display portion including a plurality of pixels. The display portion includes a light emitting layer included in organic EL elements included in the plurality of pixels, the light emitting layer being extended in the entirety of, and beyond, the display portion. The organic EL display device further includes a first groove enclosing the display portion as seen in a plan view, the first groove being provided in the first insulating layer at a position below the light emitting layer. A second insulating layer covering the first groove may be provided between the first insulating layer and the light emitting layer.
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公开(公告)号：US12048186B2
公开(公告)日：2024-07-23
申请号：US17245084
申请日：2021-04-30
Applicant: Japan Display Inc.
Inventor： Hiraaki Kokame
IPC: H10K50/844 , H10K59/122 , H10K77/10 , H10K102/00
CPC classification number: H10K50/844 , H10K50/8445 , H10K59/122 , H10K77/111 , H10K2102/311
Abstract: A dam portion (200) includes a wall surface positioned along an edge of the organic film and faces the display area. The substantially rectangular shape is a rectangle including a side along a first direction and a side along a second direction perpendicular to the first direction and including a chamfered portion (210) forming an outline inclined to the first and second directions. The wall surface (200w) includes first partial wall surfaces (200x) along the first direction and second partial wall surfaces (200y) along the second direction. The first partial wall surfaces (200x) have a length that is an integer multiple of a first unit length, and the second partial wall surfaces (200y) have a length that is an integer multiple of a second unit length. In the chamfered portion (210), the first partial wall surfaces (200x) and the second partial wall surfaces (200y) are connected in a zigzag manner.
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公开(公告)号：US11335758B2
公开(公告)日：2022-05-17
申请号：US17148680
申请日：2021-01-14
Applicant: Japan Display Inc.
Inventor： Hiraaki Kokame , Akinori Kamiya
Abstract: A display device according to an embodiment of the present invention includes: a substrate, a plurality of pixels on the substrate, a first inorganic insulating layer that covers the plurality of pixels, a conductive layer on the first inorganic insulating layer, and a second inorganic insulating layer that on the conductive layer, the conductive layer being between the first inorganic insulating layer and the second inorganic insulating layer, wherein the first inorganic insulating layer includes an area that is in direct contact with the second inorganic insulating layer, and all of the conductive layer is covered with the first inorganic insulating layer and the second inorganic insulating layer.
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