Patents by Inventor Yuko Matsumoto
Yuko Matsumoto 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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Publication number: 20250008808Abstract: The display device includes a substrate, a display region arranged on the substrate and including a plurality of pixels, a first wiring provided on the substrate, an insulating layer overlapping a portion of the first wiring, an oxide conductive layer provided on the first wiring and electrically connected to the first wiring, a sealing layer overlapping the display region and at least an end of the oxide conductive layer and sealing the plurality of pixels, a sensor electrode provided on the sealing layer and overlapping the display region, and a second wiring passing over the at least end of the oxide conductive layer provided with the sealing layer and electrically connecting the sensor electrode and the oxide conductive layer.Type: ApplicationFiled: September 12, 2024Publication date: January 2, 2025Inventors: Mitsuhide MIYAMOTO, Yuko MATSUMOTO
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Patent number: 12182348Abstract: The method for manufacturing a display device includes forming a light emitting element and a terminal on a substrate, forming a sealing film including a first inorganic insulating film and a second inorganic insulating film to cover the light emitting element and the terminal, forming a resist having a taper shape in which a thickness of an end portion on the sealing film becomes thinner as it goes to the terminal side by using a gray-tone mask, forming a taper shape in which thicknesses in end portions of the first inorganic insulating film and the second inorganic insulating film becomes thinner as it goes to the terminal side by etching, forming a touch electrode above the sealing film and forming wiring connected to the terminal via the end portions together with connecting to the touch electrode for detecting a touched position.Type: GrantFiled: September 11, 2023Date of Patent: December 31, 2024Assignee: Japan Display Inc.Inventors: Yuko Matsumoto, Hajime Akimoto, Mitsuhide Miyamoto, Yusuke Tada
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Publication number: 20240414979Abstract: 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 including a lower portion and an upper portion, forming an organic layer on the lower electrode, forming an upper electrode on the organic layer, forming a first transparent layer on the upper electrode, and forming a second transparent layer on the first transparent layer. The first transparent layer and the second transparent layer are formed of organic materials different from each other. A refractive index of the second transparent layer is less than a refractive index of the first transparent layer.Type: ApplicationFiled: January 19, 2024Publication date: December 12, 2024Applicant: Japan Display Inc.Inventor: Yuko MATSUMOTO
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Patent number: 12144202Abstract: According to one embodiment, in a manufacturing method of a display device, a first lower electrode, a second lower electrode and a third lower electrode are formed. A rib having first aperture overlapping the first lower electrode, a second aperture overlapping the second lower electrode, and a third aperture overlapping the third lower electrode is formed. A first thin film including a first light emitting layer is formed on the first lower electrode. A second thin film including a second light emitting layer is formed on the second lower electrode. An area of the first aperture is larger than an area of the second aperture.Type: GrantFiled: August 2, 2023Date of Patent: November 12, 2024Assignee: JAPAN DISPLAY INC.Inventors: Yuko Matsumoto, Kaichi Fukuda
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Patent number: 12127462Abstract: The display device includes a substrate, a display region arranged on the substrate and including a plurality of pixels, a first wiring provided on the substrate, an insulating layer overlapping a portion of the first wiring, an oxide conductive layer provided on the first wiring and electrically connected to the first wiring, a sealing layer overlapping the display region and at least an end of the oxide conductive layer and sealing the plurality of pixels, a sensor electrode provided on the sealing layer and overlapping the display region, and a second wiring passing over the at least end of the oxide conductive layer provided with the sealing layer and electrically connecting the sensor electrode and the oxide conductive layer.Type: GrantFiled: June 19, 2023Date of Patent: October 22, 2024Assignee: Japan Display Inc.Inventors: Mitsuhide Miyamoto, Yuko Matsumoto
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Publication number: 20240298467Abstract: A display device according to an embodiment of the present invention includes: a base material including a display region having a plurality of pixels and a frame region; a lower electrode provided in each of the plurality of pixels; an organic material layer arranged on the lower electrode; an upper electrode arranged on the organic material layer and covering the display region; a conductor portion provided in the frame region and connected to the upper electrode; and a rib provided on the conductor portion, wherein the upper electrode is arranged on the conductor portion via the rib, a first contact portion where the upper electrode and the conductor portion contact each other is located in the frame region, the rib has a side surface located at an opposite side of the first contact portion from the display region, and an end portion of the upper electrode faces the side surface.Type: ApplicationFiled: May 6, 2024Publication date: September 5, 2024Inventor: Yuko MATSUMOTO
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Patent number: 12072581Abstract: Disclosed is a manufacturing method of a liquid crystal display device which is a manufacturing method of a liquid crystal display device including a liquid crystal alignment film to which an alignment regulating force is imparted by a photo-alignment treatment, including: a film forming step of forming a film containing a polymer whose main chain is cleaved by irradiation with light; a photo-alignment step of imparting an alignment regulating force to the film formed in the film forming step by irradiation of the film with light in an atmosphere of a temperature lower than 100° C.; and a removing step of removing a low-molecular weight component generated by cleaving the main chain of the polymer through the light irradiation after the light irradiation. Also disclosed is a liquid crystal display device manufactured by the manufacturing method.Type: GrantFiled: May 4, 2023Date of Patent: August 27, 2024Assignees: Japan Display Inc.Inventors: Shoichi Uchino, Noboru Kunimatsu, Hidehiro Sonoda, Chikae Matsui, Yuko Matsumoto, Tomio Yaguchi, Toshiki Kaneko, Jun Tanaka
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Patent number: 12010870Abstract: A display device according to an embodiment of the present invention includes: a base material including a display region having a plurality of pixels and a frame region; a lower electrode provided in each of the plurality of pixels; an organic material layer arranged on the lower electrode; an upper electrode arranged on the organic material layer and covering the display region; a conductor portion provided in the frame region and connected to the upper electrode; and a rib provided on the conductor portion, wherein the upper electrode is arranged on the conductor portion via the rib, a first contact portion where the upper electrode and the conductor portion contact each other is located in the frame region, the rib has a side surface located at an opposite side of the first contact portion from the display region, and an end portion of the upper electrode faces the side surface.Type: GrantFiled: April 17, 2023Date of Patent: June 11, 2024Assignee: Japan Display Inc.Inventor: Yuko Matsumoto
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Patent number: 11937488Abstract: 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 including a lower portion and an upper portion, forming an organic layer on the lower electrode, forming an upper electrode on the organic layer, forming a first transparent layer on the upper electrode, and forming a second transparent layer on the first transparent layer. The first transparent layer and the second transparent layer are formed of organic materials different from each other. A refractive index of the second transparent layer is less than a refractive index of the first transparent layer.Type: GrantFiled: September 5, 2023Date of Patent: March 19, 2024Assignee: JAPAN DISPLAY INC.Inventor: Yuko Matsumoto
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Patent number: 11868552Abstract: The method for manufacturing a display device includes forming a light emitting element and a terminal on a substrate, forming a sealing film including a first inorganic insulating film and a second inorganic insulating film to cover the light emitting element and the terminal, forming a resist having a taper shape in which a thickness of an end portion on the sealing film becomes thinner as it goes to the terminal side by using a gray-tone mask, forming a taper shape in which thicknesses in end portions of the first inorganic insulating film and the second inorganic insulating film becomes thinner as it goes to the terminal side by etching, forming a touch electrode above the sealing film and forming wiring connected to the terminal via the end portions together with connecting to the touch electrode for detecting a touched position.Type: GrantFiled: November 3, 2022Date of Patent: January 9, 2024Assignee: Japan Display Inc.Inventors: Yuko Matsumoto, Hajime Akimoto, Mitsuhide Miyamoto, Yusuke Tada
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Publication number: 20230418398Abstract: The method for manufacturing a display device includes forming a light emitting element and a terminal on a substrate, forming a sealing film including a first inorganic insulating film and a second inorganic insulating film to cover the light emitting element and the terminal, forming a resist having a taper shape in which a thickness of an end portion on the sealing film becomes thinner as it goes to the terminal side by using a gray-tone mask, forming a taper shape in which thicknesses in end portions of the first inorganic insulating film and the second inorganic insulating film becomes thinner as it goes to the terminal side by etching, forming a touch electrode above the sealing film and forming wiring connected to the terminal via the end portions together with connecting to the touch electrode for detecting a touched position.Type: ApplicationFiled: September 11, 2023Publication date: December 28, 2023Inventors: Yuko MATSUMOTO, Hajime AKIMOTO, Mitsuhide MIYAMOTO, Yusuke TADA
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Publication number: 20230413643Abstract: 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 including a lower portion and an upper portion, forming an organic layer on the lower electrode, forming an upper electrode on the organic layer, forming a first transparent layer on the upper electrode, and forming a second transparent layer on the first transparent layer. The first transparent layer and the second transparent layer are formed of organic materials different from each other. A refractive index of the second transparent layer is less than a refractive index of the first transparent layer.Type: ApplicationFiled: June 16, 2023Publication date: December 21, 2023Applicant: Japan Display Inc.Inventor: Yuko MATSUMOTO
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Publication number: 20230413612Abstract: According to one embodiment, a display device includes a rib including first to third pixel apertures, a partition which includes a lower portion on the rib and an upper portion protruding from a side surface of the lower portion, first to third display elements overlapping the first to third pixel apertures, first to third sealing layers including first to third portions on the upper portion. At least two of a first width of an area in which the first portion overlaps the upper portion, a second width of an area in which the second portion overlaps the upper portion and a third width of an area in which the third portion overlaps the upper portion are different from each other.Type: ApplicationFiled: June 14, 2023Publication date: December 21, 2023Applicant: Japan Display Inc.Inventors: Yuko MATSUMOTO, Kimitaka OHATA, Hiraaki KOKAME
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Publication number: 20230413644Abstract: 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 including a lower portion and an upper portion, forming an organic layer on the lower electrode, forming an upper electrode on the organic layer, forming a first transparent layer on the upper electrode, and forming a second transparent layer on the first transparent layer. The first transparent layer and the second transparent layer are formed of organic materials different from each other. A refractive index of the second transparent layer is less than a refractive index of the first transparent layer.Type: ApplicationFiled: September 5, 2023Publication date: December 21, 2023Applicant: Japan Display Inc.Inventor: Yuko MATSUMOTO
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Publication number: 20230389356Abstract: According to one embodiment, in a manufacturing method of a display device, a first lower electrode, a second lower electrode and a third lower electrode are formed. A rib having first aperture overlapping the first lower electrode, a second aperture overlapping the second lower electrode, and a third aperture overlapping the third lower electrode is formed. A first thin film including a first light emitting layer is formed on the first lower electrode. A second thin film including a second light emitting layer is formed on the second lower electrode. An area of the first aperture is larger than an area of the second aperture.Type: ApplicationFiled: August 2, 2023Publication date: November 30, 2023Applicant: Japan Display Inc.Inventors: Yuko MATSUMOTO, Kaichi FUKUDA
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Publication number: 20230345762Abstract: According to one embodiment, a display device manufacturing method includes forming a first lower electrode of a first sub-pixel, a second lower electrode of a second sub-pixel, and a third lower electrode of a third sub-pixel, forming a first thin film, forming a negative first resist, removing the first thin film of the second sub-pixel and the third sub-pixel using the first resist as a mask, forming a second thin film, forming a negative second resist, removing the second thin film of the third sub-pixel using the second resist as a mask, forming a positive third resist, removing the second thin film of the first sub-pixel using the third resist as a mask.Type: ApplicationFiled: April 11, 2023Publication date: October 26, 2023Applicant: Japan Display Inc.Inventor: Yuko MATSUMOTO
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Publication number: 20230337505Abstract: The display device includes a substrate, a display region arranged on the substrate and including a plurality of pixels, a first wiring provided on the substrate, an insulating layer overlapping a portion of the first wiring, an oxide conductive layer provided on the first wiring and electrically connected to the first wiring, a sealing layer overlapping the display region and at least an end of the oxide conductive layer and sealing the plurality of pixels, a sensor electrode provided on the sealing layer and overlapping the display region, and a second wiring passing over the at least end of the oxide conductive layer provided with the sealing layer and electrically connecting the sensor electrode and the oxide conductive layer.Type: ApplicationFiled: June 19, 2023Publication date: October 19, 2023Inventors: Mitsuhide MIYAMOTO, Yuko MATSUMOTO
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Publication number: 20230320131Abstract: According to one embodiment, in a manufacturing method of a display device, a first lower electrode, a second lower electrode and a third lower electrode are formed. A rib having first aperture overlapping the first lower electrode, a second aperture overlapping the second lower electrode, and a third aperture overlapping the third lower electrode is formed. A first thin film including a first light emitting layer is formed on the first lower electrode. A second thin film including a second light emitting layer is formed on the second lower electrode. An area of the first aperture is larger than an area of the second aperture.Type: ApplicationFiled: March 17, 2023Publication date: October 5, 2023Applicant: Japan Display Inc.Inventors: Yuko MATSUMOTO, Kaichi FUKUDA
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Publication number: 20230301141Abstract: According to one embodiment, a display device includes an organic insulating layer, a barrier layer formed of an inorganic insulating material and provided on the organic insulating layer, a rib formed of an inorganic insulating material and provided on the barrier layer, a partition including a lower portion located immediately above the barrier layer and provided on the rib, and an upper portion provided on the lower portion and protruding from a side surface of the lower portion, a lower electrode including an end portion between the organic insulating layer and the rib, an organic layer including a first portion provided on the lower electrode, and an upper electrode including a first portion provided on the first portion of the organic layer.Type: ApplicationFiled: February 8, 2023Publication date: September 21, 2023Applicant: Japan Display Inc.Inventor: Yuko MATSUMOTO
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Publication number: 20230273483Abstract: Disclosed is a manufacturing method of a liquid crystal display device which is a manufacturing method of a liquid crystal display device including a liquid crystal alignment film to which an alignment regulating force is imparted by a photo-alignment treatment, including: a film forming step of forming a film containing a polymer whose main chain is cleaved by irradiation with light; a photo-alignment step of imparting an alignment regulating force to the film formed in the film forming step by irradiation of the film with light in an atmosphere of a temperature lower than 100° C.; and a removing step of removing a low-molecular weight component generated by cleaving the main chain of the polymer through the light irradiation after the light irradiation. Also disclosed is a liquid crystal display device manufactured by the manufacturing method.Type: ApplicationFiled: May 4, 2023Publication date: August 31, 2023Inventors: Shoichi UCHINO, Noboru KUNIMATSU, Hidehiro SONODA, Chikae MATSUI, Yuko MATSUMOTO, Tomio YAGUCHI, Toshiki KANEKO, Jun TANAKA