Patents by Inventor Yasukazu Kimura
Yasukazu Kimura 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: 20220077266Abstract: A display device includes a substrate having flexibility, a transistor having agate insulating film and further having a semiconductor layer and a gate electrode that sandwich the gate insulating film, the transistor formed in an area where the substrate is bent, and a gate wiring line so formed on the substrate as to be connected to the gate electrode, and the gate electrode has an area that is present in an area where the gate electrode overlaps with the semiconductor layer and is thinner than at least part of the gate wiring line.Type: ApplicationFiled: November 19, 2021Publication date: March 10, 2022Applicant: Japan Display Inc.Inventors: Yasukazu KIMURA, Masato HIRAMATSU, Takuma NISHINOHARA, Toshihiko ITOGA
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Patent number: 11217646Abstract: A display device includes a substrate having flexibility, a transistor having a gate insulating film and further having a semiconductor layer and a gate electrode that sandwich the gate insulating film, the transistor formed in an area where the substrate is bent, and a gate wiring line so formed on the substrate as to be connected to the gate electrode, and the gate electrode has an area that is present in an area where the gate electrode overlaps with the semiconductor layer and is thinner than at least part of the gate wiring line.Type: GrantFiled: December 31, 2019Date of Patent: January 4, 2022Assignee: Japan Display Inc.Inventors: Yasukazu Kimura, Masato Hiramatsu, Takuma Nishinohara, Toshihiko Itoga
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Patent number: 10777625Abstract: A display device including a plurality of first electrodes arranged in a display region above a substrate, each of the plurality of first electrodes being in common with n (n is an integer of 2 or more number of light emitting elements, a bank having a recess part and partitioning the n number of light emitting elements with the recess part as a boundary in each of the plurality of first electrodes, a light emitting layer arranged above the plurality of first electrodes throughout the display region, and n groups of second electrodes arranged above the light emitting layer and electrically separated with the recess part as a boundary.Type: GrantFiled: December 3, 2018Date of Patent: September 15, 2020Assignee: Japan Display Inc.Inventors: Yasukazu Kimura, Toshihiro Sato
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Publication number: 20200135828Abstract: A display device includes a substrate having flexibility, a transistor having a gate insulating film and further having a semiconductor layer and a gate electrode that sandwich the gate insulating film, the transistor formed in an area where the substrate is bent, and a gate wiring line so formed on the substrate as to be connected to the gate electrode, and the gate electrode has an area that is present in an area where the gate electrode overlaps with the semiconductor layer and is thinner than at least part of the gate wiring line.Type: ApplicationFiled: December 31, 2019Publication date: April 30, 2020Applicant: Japan Display Inc.Inventors: Yasukazu KIMURA, Masato HIRAMATSU, Takuma NISHINOHARA, Toshihiko ITOGA
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Patent number: 10586839Abstract: A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.Type: GrantFiled: June 25, 2019Date of Patent: March 10, 2020Assignee: Japan Display Inc.Inventors: Yasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto
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Patent number: 10566567Abstract: A display device includes a thin film transistor; a first organic insulating film covering the thin film transistor and containing a resin material; an inorganic insulating film on the first organic insulating film; a pixel electrode electrically connected with the thin film transistor; a second organic insulating film covering an end of the pixel electrode and exposing a top surface of the pixel electrode; and an organic layer provided on the top surface of the pixel electrode and including a light emitting layer. As seen in a plan view, the inorganic insulating film has an opening, overlapping the second organic insulating film, at a position not overlapping an opening provided in the first organic insulating film. The first and second organic insulating films face each other in the opening in the inorganic insulating film, with an oxide conductive film being between the first and second organic insulating films.Type: GrantFiled: December 20, 2017Date of Patent: February 18, 2020Assignee: Japan Display Inc.Inventors: Yasukazu Kimura, Shigeru Sakamoto
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Patent number: 10566400Abstract: A display device includes a substrate having flexibility, a transistor having a gate insulating film and further having a semiconductor layer and a gate electrode that sandwich the gate insulating film, the transistor formed in an area where the substrate is bent, and a gate wiring line so formed on the substrate as to be connected to the gate electrode, and the gate electrode has an area that is present in an area where the gate electrode overlaps with the semiconductor layer and is thinner than at least part of the gate wiring line.Type: GrantFiled: March 30, 2017Date of Patent: February 18, 2020Assignee: Japan Display Inc.Inventors: Yasukazu Kimura, Masato Hiramatsu, Takuma Nishinohara, Toshihiko Itoga
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Publication number: 20190312092Abstract: A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.Type: ApplicationFiled: June 25, 2019Publication date: October 10, 2019Inventors: Yasukazu KIMURA, Takuma NISHINOHARA, Toshihiko ITOGA, Hajime AKIMOTO
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Patent number: 10374023Abstract: A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.Type: GrantFiled: October 31, 2017Date of Patent: August 6, 2019Assignee: Japan Display Inc.Inventors: Yasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto
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Publication number: 20190103451Abstract: A display device including a plurality of first electrodes arranged in a display region above a substrate, each of the plurality of first electrodes being in common with n (n is an integer of 2 or more number of light emitting elements, a bank having a recess part and partitioning the n number of light emitting elements with the recess part as a boundary in each of the plurality of first electrodes, a light emitting layer arranged above the plurality of first electrodes throughout the display region, and n groups of second electrodes arranged above the light emitting layer and electrically separated with the recess part as a boundary.Type: ApplicationFiled: December 3, 2018Publication date: April 4, 2019Inventors: Yasukazu Kimura, Toshihiro Sato
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Patent number: 10177205Abstract: A display device including a plurality of first electrodes arranged in a display region above a substrate, each of the plurality of first electrodes being in common with n (n is an integer of 2 or more) number of light emitting elements, a bank having a recess part and partitioning the n number of light emitting elements with the recess part as a boundary in each of the plurality of first electrodes, a light emitting layer arranged above the plurality of first electrodes throughout the display region, and n groups of second electrodes arranged above the light emitting layer and electrically separated with the recess part as a boundary.Type: GrantFiled: September 27, 2016Date of Patent: January 8, 2019Assignee: Japan Display Inc.Inventors: Yasukazu Kimura, Toshihiro Sato
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Patent number: 10135014Abstract: Disclosed is a display device, including a first substrate having flexibility including a pixel region and a frame region around the pixel region, a pixel arranged on a first surface of the first substrate in the pixel region, and a terminal section arranged in the frame region and connected to the pixel, in which the first substrate includes an adjustment region between the pixel and the terminal section, the adjustment region having a different Young's modulus from those of the pixel region and the frame region.Type: GrantFiled: August 25, 2017Date of Patent: November 20, 2018Assignee: Japan Display Inc.Inventors: Takuma Nishinohara, Yasukazu Kimura
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Publication number: 20180198084Abstract: A display device includes a thin film transistor; a first organic insulating film covering the thin film transistor and containing a resin material; an inorganic insulating film on the first organic insulating film; a pixel electrode electrically connected with the thin film transistor; a second organic insulating film covering an end of the pixel electrode and exposing a top surface of the pixel electrode; and an organic layer provided on the top surface of the pixel electrode and including a light emitting layer. As seen in a plan view, the inorganic insulating film has an opening, overlapping the second organic insulating film, at a position not overlapping an opening provided in the first organic insulating film. The first and second organic insulating films face each other in the opening in the inorganic insulating film, with an oxide conductive film being between the first and second organic insulating films.Type: ApplicationFiled: December 20, 2017Publication date: July 12, 2018Inventors: Yasukazu KIMURA, Shigeru SAKAMOTO
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Patent number: 9972667Abstract: A display device includes a substrate having an insulating surface; a plurality of pixel electrodes on the insulating surface, the plurality of pixel electrodes located away from each other; a first insulating layer covering an end of each of the pixel electrodes and exposing a part of a top surface of each of the pixel electrodes; and an organic layer provided on each of the pixel electrodes, the organic layer including a light emitting layer. As seen in a plan view, the first insulating layer includes a plurality of first regions, each of the plurality of first regions being around the exposed part of the top surface of the pixel electrodes, and a second region located between two adjacent first regions, the second region including a recessed portion.Type: GrantFiled: September 12, 2017Date of Patent: May 15, 2018Assignee: Japan Display Inc.Inventors: Yasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto
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Publication number: 20180097048Abstract: A display device includes a substrate having an insulating surface; a plurality of pixel electrodes on the insulating surface, the plurality of pixel electrodes located away from each other; a first insulating layer covering an end of each of the pixel electrodes and exposing a part of a top surface of each of the pixel electrodes; and an organic layer provided on each of the pixel electrodes, the organic layer including a light emitting layer. As seen in a plan view, the first insulating layer includes a plurality of first regions, each of the plurality of first regions being around the exposed part of the top surface of the pixel electrodes, and a second region located between two adjacent first regions, the second region including a recessed portion.Type: ApplicationFiled: September 12, 2017Publication date: April 5, 2018Inventors: Yasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto
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Patent number: 9933668Abstract: Display device, including: substrates, color filters having first and second color filters, drain and gate signal lines (of light blocking material), wherein, an overlapping portion adjacent the first and second color filter overlap, is formed on a region with one of the drain or gate signal lines, a first color filter edge is a first taper and a second color filter edge is a second taper, in the overlapping portion, the first taper is closer to the drain or gate signal line than the second taper in the overlapping portion, the first taper angle is 45° or more and 90° or less corresponding to a surface of the drain or gate signal line, the second taper angle is 45° or more and 90° or less corresponding to a surface of the first taper and, the first taper angle is larger than the second taper angle.Type: GrantFiled: December 30, 2015Date of Patent: April 3, 2018Assignees: Japan Display Inc., Panasonic Liquid Crystal Co. Lt.Inventors: Yasuhiro Mizuno, Junji Tanno, Shinsuke Hayahara, Masato Sakurai, Yasukazu Kimura, Jun Fujiyoshi
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Publication number: 20180090700Abstract: Disclosed is a display device, including a first substrate having flexibility including a pixel region and a frame region around the pixel region, a pixel arranged on a first surface of the first substrate in the pixel region, and a terminal section arranged in the frame region and connected to the pixel, in which the first substrate includes an adjustment region between the pixel and the terminal section, the adjustment region having a different Young's modulus from those of the pixel region and the frame region.Type: ApplicationFiled: August 25, 2017Publication date: March 29, 2018Inventors: Takuma NISHINOHARA, Yasukazu KIMURA
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Publication number: 20180069066Abstract: A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.Type: ApplicationFiled: October 31, 2017Publication date: March 8, 2018Inventors: Yasukazu KIMURA, Takuma NISHINOHARA, Toshihiko ITOGA, Hajime AKIMOTO
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Patent number: 9837475Abstract: A display device includes: a flexible substrate; a pixel over the flexible substrate, the pixel including a transistor and a display element; a first wiring for transmitting a signal to the pixel, the first wiring extending in a first direction; a second wiring extending in a second direction intersecting the first direction; an inorganic insulating layer on a higher level than the first wiring or the second wiring; and an organic insulating layer on a higher level than the inorganic insulating layer, wherein the inorganic insulating layer has an opening exposing a part of the upper surface of the first wiring or the second wiring is exposed, and the organic insulating layer is provided in such a way as to fill the opening.Type: GrantFiled: December 9, 2016Date of Patent: December 5, 2017Assignee: Japan Display Inc.Inventors: Yasukazu Kimura, Takuma Nishinohara, Toshihiko Itoga, Hajime Akimoto
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Patent number: 9831450Abstract: A display device includes a first organic layer, a first inorganic layer, a second organic layer, a second inorganic layer, and a thin film transistor. The first organic layer has a roughened top surface. The first inorganic layer has a roughened top surface and is disposed to have a roughened bottom surface that is in contact with the roughened top surface of the first organic layer. The second organic layer has a roughened bottom surface that is in contact with the roughened top surface of the first inorganic layer. The second inorganic layer is disposed to be in contact with the top surface of the second organic layer. The thin film transistor is disposed on the top surface of the second inorganic layer.Type: GrantFiled: June 7, 2016Date of Patent: November 28, 2017Assignee: Japan Display Inc.Inventors: Takuma Nishinohara, Yasukazu Kimura, Jun Fujiyoshi