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公开(公告)号：US20200135812A1
公开(公告)日：2020-04-30
申请号：US16653078
申请日：2019-10-15
Applicant: Japan Display Inc.
Inventor： Hiroki OHARA , Akinori KAMIYA , Hiraaki KOKAME
Abstract: A display device includes a sealing film covering a display region where an image is displayed, a touch sensor layer configured to detect a touched position of the display region, the touch sensor layer including a first electrode layer that is arranged on the sealing film, a first insulating layer that is formed on the first electrode layer using a material including nitrogen, and a second electrode layer that is arranged over the first insulating layer, an overcoat covering the touch sensor layer, and a polarizing plate being arranged on the overcoat. The touch sensor layer further includes a second insulating layer configured to inhibit a reaction between nitrogen included in the first insulating layer and water included in the overcoat, the second insulating layer being formed between the first insulating layer and the overcoat using a material not including nitrogen.
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公开(公告)号：US20180026229A1
公开(公告)日：2018-01-25
申请号：US15608468
申请日：2017-05-30
Applicant: Japan Display Inc.
Inventor： Hiraaki KOKAME
CPC classification number: H01L51/5253 , H01L27/32 , H01L51/0097 , H01L51/56 , H01L2251/5338
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：US20170194601A1
公开(公告)日：2017-07-06
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：US20230422583A1
公开(公告)日：2023-12-28
申请号：US18340041
申请日：2023-06-23
Applicant: Japan Display Inc.
Inventor： Daisuke KATO , Hiraaki KOKAME , Noriyuki HIRATA
CPC classification number: H10K59/8731 , H10K59/1201
Abstract: According to one embodiment, a manufacturing method of a display device includes preparing a processing substrate by forming a lower electrode, forming a rib, and forming a partition, forming an organic layer on the lower electrode, forming an upper electrode on the organic layer, forming a cap layer on the upper electrode, forming a sealing layer on the cap layer, forming a patterned resist on the sealing layer, and removing the sealing layer exposed from the resist by dry etching. The sealing layer includes a first high-density layer and a low-density layer. When dry etching is applied to the sealing layer, an etching rate of the low-density layer is greater than an etching rate of the first high-density layer.
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公开(公告)号：US20230389355A1
公开(公告)日：2023-11-30
申请号：US18324192
申请日：2023-05-26
Applicant: Japan Display Inc.
Inventor： Noriyuki HIRATA , Hiraaki KOKAME
IPC: H10K59/12 , H01J37/32 , H10K59/80 , C23C16/458 , C23C16/455 , C23C16/34 , C23C16/56 , C23C16/50 , C23C16/44
CPC classification number: H10K59/1201 , H01J37/32357 , H01J37/32862 , H01J37/32449 , H10K59/873 , C23C16/4583 , C23C16/45565 , C23C16/345 , C23C16/56 , C23C16/50 , C23C16/4405 , H01J2237/334
Abstract: According to one embodiment, a manufacturing method of a display device includes forming a sealing layer. The forming the sealing layer includes a deposition process of introducing a material gas into a chamber, depositing silicon nitride on a processing substrate, stopping introduction of the material gas and evacuating a residual gas of inside of the chamber, and an etching process of introducing a cleaning gas into the chamber through a same route as the material gas, performing anisotropic dry etching for removing part of the silicon nitride deposited on the processing substrate, and evacuating a residual gas of the inside of the chamber. A combination of the deposition process and the etching process is performed at least twice.
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Patent Agency Ranking
公开(公告)号：US20230320185A1
公开(公告)日：2023-10-05
申请号：US18191001
申请日：2023-03-28
Applicant: Japan Display Inc.
Inventor： Hiraaki KOKAME , Toshifumi MIMURA
IPC: H10K71/20
CPC classification number: H10K71/231 , H10K59/871
Abstract: According to one embodiment, a manufacturing method of a display device includes forming a first display element on a substrate, the first display element including a first lower electrode, a first upper electrode and a first organic layer located between the first lower electrode and the first upper electrode, forming a first sealing layer which covers the first display element, forming a first resist on the first sealing layer, and removing, of the first sealing layer and the first display element, a portion exposed from the first resist by a first patterning process including washing of the substrate with a cleaning liquid containing water.
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公开(公告)号：US20230240126A1
公开(公告)日：2023-07-27
申请号：US18157844
申请日：2023-01-23
Applicant: Japan Display Inc.
Inventor： Toshifumi MIMURA , Hiraaki KOKAME , Arichika ISHIDA , Kaichi FUKUDA
CPC classification number: H10K71/60 , H10K59/1201 , H10K71/231
Abstract: According to one embodiment, a display device manufacturing method includes preparing a processing substrate including a lower electrode, a rib including and a partition, forming a first organic layer covering the lower electrode, and a second organic layer located on the upper portion, forming a first upper electrode located on the first organic layer and a second upper electrode located on the second organic layer, forming a sealing layer, forming a resist covering a part of the sealing layer, performing anisotropic dry etching using the resist as a mask to reduce a thickness of the sealing layer exposed from the resist, and performing isotropic dry etching using the resist as a mask and using a mixture gas of fluorine-based gas and oxygen to remove the sealing layer exposed from the resist.
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公开(公告)号：US20190074482A1
公开(公告)日：2019-03-07
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：US20230269991A1
公开(公告)日：2023-08-24
申请号：US18171762
申请日：2023-02-21
Applicant: Japan Display Inc.
Inventor： Toshifumi MIMURA , Hiraaki KOKAME , Kaichi FUKUDA , Atsushi TAKEDA , Noriyuki HIRATA
IPC: H10K59/80
CPC classification number: H10K59/871
Abstract: According to one embodiment, a display device includes first and second lower electrodes, a rib, a partition including a lower portion and an upper portion, a first organic layer disposed on the first lower electrode, a second organic layer disposed on the second lower electrode, a first upper electrode disposed on the first organic layer, a second upper electrode disposed on the second organic layer, a first sealing layer disposed above the first upper electrode, in contact with the lower portion and extending to above the upper portion and a second sealing layer disposed above the second upper electrode, in contact with the lower portion, extending to above the upper portion, and spaced apart from the first sealing layer.
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公开(公告)号：US20220223676A1
公开(公告)日：2022-07-14
申请号：US17708068
申请日：2022-03-30
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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