Patents by Inventor Akinori Kamiya
Akinori Kamiya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10135029Abstract: 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.Type: GrantFiled: January 18, 2017Date of Patent: November 20, 2018Assignee: Japan Display Inc.Inventor: Akinori Kamiya
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Publication number: 20180301651Abstract: 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.Type: ApplicationFiled: March 13, 2018Publication date: October 18, 2018Inventors: Akinori KAMIYA, Kota MAKISHI
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Patent number: 10103206Abstract: 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.Type: GrantFiled: December 15, 2016Date of Patent: October 16, 2018Assignee: Japan Display Inc.Inventor: Akinori Kamiya
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Publication number: 20180287086Abstract: An organic electroluminescence display device comprising a plurality of light emitting elements, a sealing film covering the plurality of light emitting elements, and having a top surface which is an inorganic film made of a first inorganic material, a protective film made of an organic material, the protective film covering the sealing film, and a close-fitting layer made of a second inorganic material and located between the top surface of the sealing film and the protective film. The first inorganic material has higher moisture-barrier properties than the second inorganic material, and adhesion between the second inorganic material and the organic material is higher than adhesion between the first inorganic material and the organic material.Type: ApplicationFiled: March 23, 2018Publication date: October 4, 2018Applicant: Japan Display Inc.Inventor: Akinori KAMIYA
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Publication number: 20180248151Abstract: An organic EL display device includes a thin film transistor substrate that has a circuit layer, a passivation layer, a lower electrode formed in each pixel in a display region, an organic material layer that is in contact with the lower electrode, an upper electrode that covers the organic material layer, and a sealing layer that entirely covers the base material. The thin film transistor substrate has the display region, and a moisture blocking region that surrounds the display region. On the moisture blocking region, the circuit layer, the passivation layer, the moisture blocking layer, and the sealing layer are laminated in this order. A composition of the moisture blocking layer is different from a composition of the sealing layer.Type: ApplicationFiled: February 7, 2018Publication date: August 30, 2018Applicant: Japan Display Inc.Inventor: Akinori KAMIYA
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Publication number: 20180212194Abstract: 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.Type: ApplicationFiled: March 20, 2018Publication date: July 26, 2018Applicant: JAPAN DISPLAY INC.Inventors: Akinori KAMIYA, Daisuke KATO
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Patent number: 9966570Abstract: 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.Type: GrantFiled: November 29, 2016Date of Patent: May 8, 2018Assignee: Japan Display Inc.Inventors: Akinori Kamiya, Daisuke Kato
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Patent number: 9960385Abstract: 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.Type: GrantFiled: September 28, 2016Date of Patent: May 1, 2018Assignee: Japan Display Inc.Inventor: Akinori Kamiya
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Patent number: 9947897Abstract: 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.Type: GrantFiled: January 26, 2017Date of Patent: April 17, 2018Assignee: Japan Display Inc.Inventor: Akinori Kamiya
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Patent number: 9929373Abstract: A display device includes: a light emitting element including a light emitting layer and an anode and a cathode that hold the light emitting layer therebetween; and a sealing layer that seals the light emitting element. 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. The organic layer is a cholesteric liquid crystal layer with a circularly polarizing function.Type: GrantFiled: November 23, 2016Date of Patent: March 27, 2018Assignee: Japan Display Inc.Inventor: Akinori Kamiya
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Publication number: 20180047939Abstract: The organic electroluminescence display device of an embodiment of the present invention includes a substrate, a plurality of pixels formed on the substrate, and a sealing film that covers the plurality of pixels. The sealing film includes a first barrier layer, a base layer covering the top surface of the first barrier layer, an inter layer locally formed on the top surface of the base layer, and a second barrier layer covering the top surface of the base layer and the top surface of the inter layer. The inter layer is formed so as to cover a step or the top surface of the base layer.Type: ApplicationFiled: October 10, 2017Publication date: February 15, 2018Inventor: Akinori KAMIYA
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Patent number: 9853244Abstract: Provided is a method for manufacturing a display device. The method includes: forming a first electrode; forming an insulating film covering an edge portion of the first electrode; forming an EL layer over the first electrode and the insulating film; forming a second electrode over the EL layer; forming, over the second electrode, a first layer including an inorganic compound; forming, over the first layer, a second layer including an organic compound so as to overlap with the insulating film and the EL layer; thinning the second layer so that the first layer is exposed in a region overlapping with the insulating film; and forming, over the second layer, a third layer including an inorganic compound.Type: GrantFiled: October 18, 2016Date of Patent: December 26, 2017Assignee: Japan Display Inc.Inventor: Akinori Kamiya
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Publication number: 20170365813Abstract: 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.Type: ApplicationFiled: April 6, 2017Publication date: December 21, 2017Inventor: Akinori KAMIYA
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Patent number: 9818979Abstract: The organic electroluminescence display device of an embodiment of the present invention includes a substrate, a plurality of pixels formed on the substrate, and a sealing film that covers the plurality of pixels. The sealing film includes a first barrier layer, a base layer covering the top surface of the first barrier layer, an inter layer locally formed on the top surface of the base layer, and a second barrier layer covering the top surface of the base layer and the top surface of the inter layer. The inter layer is formed so as to cover a step on the top surface of the base layer.Type: GrantFiled: October 27, 2016Date of Patent: November 14, 2017Assignee: Japan Display Inc.Inventor: Akinori Kamiya
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Patent number: 9812668Abstract: The organic electroluminescence display device of an embodiment of the present invention includes a substrate, a plurality of pixels formed on the substrate, and a sealing film that covers the plurality of pixels. The sealing film includes a first barrier layer, a base layer covering the top surface of the first barrier layer, an inter layer locally formed on the top surface of the base layer, and a second barrier layer covering the top surface of the base layer and the top surface of the inter layer. The inter layer is formed so as to cover a step on the top surface of the base layer.Type: GrantFiled: October 27, 2016Date of Patent: November 7, 2017Assignee: Japan Display Inc.Inventor: Akinori Kamiya
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Publication number: 20170279078Abstract: A method of manufacturing an organic EL display device according to an embodiment of the present invention includes, in the following order, disposing a mask material so as to specify a region having a sealing layer formed therein, on a substrate in which a laminated structure having a first electrode, an organic EL layer, and a second electrode included in this order is disposed, applying a sealing layer forming material onto the substrate, and removing the mask material from an upper portion of the substrate.Type: ApplicationFiled: December 9, 2016Publication date: September 28, 2017Applicant: Japan Display Inc.Inventor: Akinori KAMIYA
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Publication number: 20170271618Abstract: 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.Type: ApplicationFiled: January 26, 2017Publication date: September 21, 2017Applicant: Japan Display Inc.Inventor: Akinori KAMIYA
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Publication number: 20170250371Abstract: Provided is a method for manufacturing a display device. The method includes: forming a first electrode; forming an insulating film covering an edge portion of the first electrode; forming an EL layer over the first electrode and the insulating film; forming a second electrode over the EL layer; forming, over the second electrode, a first layer including an inorganic compound; forming, over the first layer, a second layer including an organic compound so as to overlap with the insulating film and the EL layer; thinning the second layer so that the first layer is exposed in a region overlapping with the insulating film; and forming, over the second layer, a third layer including an inorganic compound.Type: ApplicationFiled: October 18, 2016Publication date: August 31, 2017Inventor: Akinori KAMIYA
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Publication number: 20170250369Abstract: A method for manufacturing a display device includes steps of preparing an insulating substrate; forming a circuit layer on the insulating substrate; forming a light emitting element layer on the circuit layer in the display area; forming a sealing layer on the circuit layer in the terminal area and on the light emitting element layer in the display area; applying resin material onto the sealing layer in the terminal area and the display area; forming an applied resin layer so as to cover the display area and so as to expose the sealing layer in the terminal area by curing the resin material applied; and removing a part of the sealing layer, formed in the terminal area, using the applied resin layer as a mask.Type: ApplicationFiled: February 22, 2017Publication date: August 31, 2017Applicant: Japan Display Inc.Inventor: Akinori KAMIYA
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Publication number: 20170250368Abstract: A display device includes: a light emitting element including a light emitting layer and an anode and a cathode that hold the light emitting layer therebetween; and a sealing layer that seals the light emitting element. 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. The organic layer is a cholesteric liquid crystal layer with a circularly polarizing function.Type: ApplicationFiled: November 23, 2016Publication date: August 31, 2017Applicant: Japan Display Inc.Inventor: Akinori KAMIYA