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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Patent number: 11659734Abstract: 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: May 13, 2022Date of Patent: May 23, 2023Assignee: Japan Display Inc.Inventor: Yuko Matsumoto
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Patent number: 11621404Abstract: A display device has a first electrode provided corresponding to each of a plurality of pixels in a region in which the plurality of pixels is provided, a second electrode provided over the plurality of pixels and extending to a contact region provided outside the pixel region, a light emitting layer provided between the first electrode and the second electrode, a third electrode provided in the contact region, an organic insulating layer covering the third electrode and provided with a contact hole exposing the third electrode, and a connection portion between the second electrode and the third electrode in the contact hole, wherein the maximum distance between any two points on the outer periphery of the connection portion is 1 ?m or more and 100 ?m or less.Type: GrantFiled: June 7, 2021Date of Patent: April 4, 2023Assignee: Japan Display Inc.Inventors: Mitsuhide Miyamoto, Hajime Akimoto, Yuko Matsumoto, Yusuke Tada
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Publication number: 20230047738Abstract: 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: November 3, 2022Publication date: February 16, 2023Inventors: Yuko MATSUMOTO, Hajime AKIMOTO, Mitsuhide MIYAMOTO, Yusuke TADA
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Patent number: 11556194Abstract: 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: October 18, 2021Date of Patent: January 17, 2023Assignee: Japan Display Inc.Inventors: Yuko Matsumoto, Hajime Akimoto, Mitsuhide Miyamoto, Yusuke Tada
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Publication number: 20220326577Abstract: 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: June 16, 2022Publication date: October 13, 2022Inventors: Shoichi UCHINO, Noboru KUNIMATSU, Hidehiro SONODA, Chikae MATSUI, Yuko MATSUMOTO, Tomio YAGUCHI, Toshiki KANEKO, Jun TANAKA
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Publication number: 20220271099Abstract: 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 13, 2022Publication date: August 25, 2022Inventor: Yuko MATSUMOTO
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Patent number: 11391993Abstract: 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: March 24, 2020Date of Patent: July 19, 2022Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Shoichi Uchino, Noboru Kunimatsu, Hidehiro Sonoda, Chikae Matsui, Yuko Matsumoto, Tomio Yaguchi, Toshiki Kaneko, Jun Tanaka
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Patent number: 11362160Abstract: 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: August 14, 2020Date of Patent: June 14, 2022Assignee: Japan Display Inc.Inventor: Yuko Matsumoto
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Publication number: 20220093695Abstract: 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: December 8, 2021Publication date: March 24, 2022Inventors: Mitsuhide MIYAMOTO, Yuko MATSUMOTO
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Publication number: 20220035467Abstract: 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: October 18, 2021Publication date: February 3, 2022Inventors: Yuko MATSUMOTO, Hajime Akimoto, Mitsuhide Miyamoto, Yusuke Tada
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Patent number: 11227901Abstract: 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: April 7, 2020Date of Patent: January 18, 2022Assignee: Japan Display Inc.Inventors: Mitsuhide Miyamoto, Yuko Matsumoto
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Publication number: 20220004061Abstract: A liquid crystal display device includes a TFT substrate having a first alignment film and an opposing substrate having a second alignment film with liquid crystals sandwiched therebetween. One of the first and second alignment films, comprises a first polyimide produced via polyamide acid ester containing cyclobutane as a precursor and a second polyimide produced via polyamide acid as a precursor. The polyamide acid has a higher polarity than that of the polyamide acid ester. The one of the first and second alignment films is responsive to photo-alignment. A first side of the one of the first and second alignment films is adjacent to the liquid crystals, and a second side thereof is closer to one of the TFT substrate and the counter substrate than the first side. The first side contains more of the first polyimide and less of the second polyimide than the second side.Type: ApplicationFiled: September 17, 2021Publication date: January 6, 2022Inventors: Noboru KUNIMATSU, Chikae MATSUI, Hidehiro SONODA, Yuko MATSUMOTO, Shoichi UCHINO, Masaki MATSUMORI, Yasushi TOMIOKA
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Patent number: 11175760Abstract: 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 8, 2020Date of Patent: November 16, 2021Assignee: Japan Display Inc.Inventors: Yuko Matsumoto, Hajime Akimoto, Mitsuhide Miyamoto, Yusuke Tada
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Patent number: 11156875Abstract: A liquid crystal display device includes a TFT substrate having a first alignment film and an opposing substrate having a second alignment film with liquid crystals sandwiched therebetween. One of the first and second alignment films, comprises a first polyimide produced via polyamide acid ester containing cyclobutane as a precursor and a second polyimide produced via polyamide acid as a precursor. The polyamide acid has a higher polarity than that of the polyamide acid ester. The one of the first and second alignment films is responsive to photo-alignment. A first side of the one of the first and second alignment films is adjacent to the liquid crystals, and a second side thereof is closer to one of the TFT substrate and the counter substrate than the first side. The first side contains more of the first polyimide and less of the second polyimide than the second side.Type: GrantFiled: December 5, 2019Date of Patent: October 26, 2021Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Noboru Kunimatsu, Chikae Matsui, Hidehiro Sonoda, Yuko Matsumoto, Shoichi Uchino, Masaki Matsumori, Yasushi Tomioka
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Publication number: 20210296611Abstract: A display device has a first electrode provided corresponding to each of a plurality of pixels in a region in which the plurality of pixels is provided, a second electrode provided over the plurality of pixels and extending to a contact region provided outside the pixel region, a light emitting layer provided between the first electrode and the second electrode, a third electrode provided in the contact region, an organic insulating layer covering the third electrode and provided with a contact hole exposing the third electrode, and a connection portion between the second electrode and the third electrode in the contact hole, wherein the maximum distance between any two points on the outer periphery of the connection portion is 1 ?m or more and 100 ?m or less.Type: ApplicationFiled: June 7, 2021Publication date: September 23, 2021Inventors: Mitsuhide MIYAMOTO, Hajime AKIMOTO, Yuko MATSUMOTO, Yusuke TADA
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Patent number: 11056668Abstract: A display device has a first electrode provided corresponding to each of a plurality of pixels in a region in which the plurality of pixels is provided, a second electrode provided over the plurality of pixels and extending to a contact region provided outside the pixel region, a light emitting layer provided between the first electrode and the second electrode, a third electrode provided in the contact region, an organic insulating layer covering the third electrode and provided with a contact hole exposing the third electrode, and a connection portion between the second electrode and the third electrode in the contact hole, wherein the maximum distance between any two points on the outer periphery of the connection portion is 1 ?m or more and 100 ?m or less.Type: GrantFiled: June 19, 2019Date of Patent: July 6, 2021Assignee: Japan Display Inc.Inventors: Mitsuhide Miyamoto, Hajime Akimoto, Yuko Matsumoto, Yusuke Tada
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Publication number: 20200409487Abstract: 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 8, 2020Publication date: December 31, 2020Inventors: Yuko Matsumoto, Hajime Akimato, Mitsuhide Miyamoto, Yusuke Tada
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Publication number: 20200373363Abstract: 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: August 14, 2020Publication date: November 26, 2020Inventor: Yuko MATSUMOTO
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Patent number: 10838565Abstract: A display device according to an embodiment of the invention includes: a base insulating film; a sealing film which covers the base insulating film; a plurality of first electrodes which are two-dimensionally arranged on the sealing film, the first electrodes adjacent in a first direction being connected via a first connection line; a plurality of second electrodes which are two-dimensionally arranged, the second electrodes adjacent in the second direction being connected via a second connection line intersecting the first connection line in plan view; an interlayer insulating film which is interposed between the first connection line and the second connection line and which fills a step formed by an outer edge of the sealing film and the base insulating film; and a lead-out wiring which is connected to the first electrode or the second electrode and which passes over a portion of the interlayer insulating film which fills the step.Type: GrantFiled: September 23, 2019Date of Patent: November 17, 2020Assignee: Japan Display Inc.Inventors: Mitsuhide Miyamoto, Hajime Akimoto, Yuko Matsumoto, Yusuke Tada
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Publication number: 20200235169Abstract: 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: April 7, 2020Publication date: July 23, 2020Inventors: Mitsuhide MIYAMOTO, Yuko MATSUMOTO