Patents by Inventor Toshihiko Itoga
Toshihiko Itoga 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: 20230225213Abstract: According to one embodiment, a method of manufacturing a piezoelectric element, includes forming lower electrodes on an insulating substrate, applying a precursor solution on the insulating substrate and the lower electrodes, drying the precursor solution by firing, thus forming a first precursor layer, patterning the first precursor layer into a shape of a plurality of islands located on the lower electrodes, respectively and crystallizing the island-shaped first precursor layer by firing, thus forming first piezoelectric layers.Type: ApplicationFiled: January 11, 2023Publication date: July 13, 2023Applicant: Japan Display Inc.Inventor: Toshihiko ITOGA
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Publication number: 20220223782Abstract: The purpose of the present invention is to form a semiconductor device in which an active area laminated on a PZT (lead zirconate titanate (PbZrTiO3) sensor having a piezoelectric effect. The main structure of the present invention is as follows. A semiconductor device having a PZT (lead zirconate titanate (PbZrTiO3)) sensor including: the PZT sensor including a lower electrode formed on a glass substrate, a PZT, an upper electrode, a first inorganic insulating film covering the upper electrode, and an upper wiring formed on the first inorganic insulating film and connected to the upper electrode through a first through-hole formed in the first inorganic insulating film; in which a polyimide film is formed over the PZT sensor; a plurality of TFTs are formed on the polyimide film, and a thickness of the polyimide film is 5 ?m or more.Type: ApplicationFiled: March 30, 2022Publication date: July 14, 2022Applicant: Japan Display Inc.Inventors: Toshihiko ITOGA, Takuo KAITOH
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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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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: 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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Patent number: 10355249Abstract: A manufacturing method of an organic EL display device according to an embodiment of the present invention includes: disposing a first organic substrate having flexibility on a glass substrate; disposing a barrier layer on the first organic substrate; disposing a second organic substrate having flexibility on the barrier layer such that a thickness of a terminal section area is thinner than a thickness of a pixel section area, or at least a part of the terminal section area is not covered; disposing a pixel control section on the terminal section area of the second organic substrate and a pixel generating section on the pixel section area, respectively; disposing a circuit section at least on the terminal section area, the circuit section having a thin film transistor, wherein the circuit section is formed directly on the second organic substrate.Type: GrantFiled: April 3, 2018Date of Patent: July 16, 2019Assignee: Japan Display Inc.Inventors: Hiroki Nakaie, Toshihiko Itoga
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Publication number: 20180294445Abstract: A manufacturing method of an organic EL display device according to an embodiment of the present invention includes: disposing a first organic substrate having flexibility on a glass substrate; disposing a barrier layer on the first organic substrate; disposing a second organic substrate having flexibility on the barrier layer such that a thickness of a terminal section area is thinner than a thickness of a pixel section area, or at least a part of the terminal section area is not covered; disposing a pixel control section on the terminal section area of the second organic substrate and a pixel generating section on the pixel section area, respectively; disposing a circuit section at least on the terminal section area, the circuit section having a thin film transistor, wherein the circuit section is formed directly on the second organic substrate.Type: ApplicationFiled: April 3, 2018Publication date: October 11, 2018Applicant: Japan Display Inc.Inventors: Hiroki NAKAIE, Toshihiko ITOGA
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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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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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Publication number: 20170287999Abstract: 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: March 30, 2017Publication date: October 5, 2017Applicant: Japan Display Inc.Inventors: Yasukazu KIMURA, Masato HIRAMATSU, Takuma NISHINOHARA, Toshihiko ITOGA
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Publication number: 20170221974Abstract: A display device is comprising an insulating layer provided above a substrate, a pixel electrode provided on the insulating layer, a bank layer covering a periphery edge part of the pixel electrode, a light emitting layer provided across to a surface layer part of the bank layer from the pixel electrode, and a common electrode provided on the light emitting layer, wherein the pixel electrode including a slanting region having a periphery edge part becoming higher compared to a center region, and an edge part of the bank layer overlaps the slanting region of the pixel electrode.Type: ApplicationFiled: April 20, 2017Publication date: August 3, 2017Inventors: Yasukazu KIMURA, Norio Oku, Toshihiko Itoga, Takeshi Kuriyagawa, Jun Fujiyoshi, Takuma Nishinohara
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Publication number: 20170179210Abstract: 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: December 9, 2016Publication date: June 22, 2017Inventors: Yasukazu KIMURA, Takuma NISHINOHARA, Toshihiko ITOGA, Hajime AKIMOTO
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Patent number: 9685631Abstract: A display device is provided including a first substrate comprising a resin material provided with a plurality region provided with a plurality of pixels including a display device, and a second substrate provided facing the first substrate and installed with the pixel region, wherein an outer periphery side surface of the first substrate having a taper shape and including a barrier layer covering an upper layer, lower layer and the outer periphery side surface of the first substrate.Type: GrantFiled: November 18, 2016Date of Patent: June 20, 2017Assignee: Japan Display Inc.Inventors: Takuma Nishinohara, Toshihiko Itoga, Norio Oku, Yasukazu Kimura, Jun Fujiyoshi
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Publication number: 20170069874Abstract: A display device is provided including a first substrate comprising a resin material provided with a plurality region provided with a plurality of pixels including a display device, and a second substrate provided facing the first substrate and installed with the pixel region, wherein an outer periphery side surface of the first substrate having a taper shape and including a barrier layer covering an upper layer, lower layer and the outer periphery side surface of the first substrate.Type: ApplicationFiled: November 18, 2016Publication date: March 9, 2017Inventors: Takuma NISHINOHARA, Toshihiko ITOGA, Norio OKU, Yasukazu KIMURA, Jun FUJIYOSHI