Patents by Inventor Masaaki Aota
Masaaki Aota 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: 20240045286Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: ApplicationFiled: October 19, 2023Publication date: February 8, 2024Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Patent number: 11835828Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: GrantFiled: January 19, 2022Date of Patent: December 5, 2023Assignee: Japan Display Inc.Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Publication number: 20230031175Abstract: A light-emitting device includes a substrate, a laminated structure provided at the substrate, and a conductive layer provided at the laminated structure and configured to apply an electric current to the laminated structure. The laminated structure is provided between the substrate and the conductive layer, and includes a first semiconductor layer of a first conductive type, a second semiconductor layer of a second conductive type different from the first conductive type, and a light-emitting layer provided between the first semiconductor layer and the second semiconductor layer. The conductive layer includes a plurality of wire portions extending in a direction orthogonal to a lamination direction of the laminated structure, and is configured to polarize light generated at the light-emitting layer, and an electric current is applied to the light-emitting layer via the plurality of wire portions.Type: ApplicationFiled: July 28, 2022Publication date: February 2, 2023Applicant: SEIKO EPSON CORPORATIONInventors: Masaaki AOTA, Yoji KITANO
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Publication number: 20220137468Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: ApplicationFiled: January 19, 2022Publication date: May 5, 2022Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Patent number: 11256151Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: GrantFiled: May 21, 2018Date of Patent: February 22, 2022Assignee: Japan Display Inc.Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Patent number: 11022737Abstract: In a wire grid polarization element where wires are arranged in parallel on one surface of the substrate, each of the wires includes in a thickness direction thereof a reflection section composed primarily of a light reflective material and an absorption section composed primarily of a light absorptive material. The reflection section includes oxygen. Between a first portion on the substrate side of the reflection section and a second portion at an edge on an opposite side the reflection section from the substrate, is provided a mixture portion (a first mixture portion) where a proportion of oxygen gradually decreases and a proportion of aluminum which is the light reflective material gradually increases from the second portion to the first portion. Thus, even when the reflection section is provided with portions having different compositions, development of an interface does not occur inside the reflection section.Type: GrantFiled: May 22, 2019Date of Patent: June 1, 2021Assignee: SEIKO EPSON CORPORATIONInventor: Masaaki Aota
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Patent number: 10935856Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: GrantFiled: January 29, 2020Date of Patent: March 2, 2021Assignee: Japan Display Inc.Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Publication number: 20200166812Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: ApplicationFiled: January 29, 2020Publication date: May 28, 2020Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Patent number: 10663636Abstract: A wire grid polarization apparatus includes a plurality of wire-shaped metal layers arranged in parallel to each other in a region, on which light is incident, on a side of a first surface of a transmissive substrate. The wire-shaped metal layers include aluminum or silver as a principal component. Outside the region, a sacrificial electrode having an ionization tendency greater than an ionization tendency of the wire-shaped metal layers is electrically coupled to the wire-shaped metal layers. This allows the sacrificial electrode to prevent the wire-shaped metal layers from being corroded under a condition of high temperature and high humidity. Being provided outside the region, the sacrificial electrode does not impair polarization separation performance.Type: GrantFiled: October 29, 2018Date of Patent: May 26, 2020Assignee: SEIKO EPSON CORPORATIONInventor: Masaaki Aota
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Publication number: 20190361162Abstract: In a wire grid polarization element where wires are arranged in parallel on one surface of the substrate, each of the wires includes in a thickness direction thereof a reflection section composed primarily of a light reflective material and an absorption section composed primarily of a light absorptive material. The reflection section includes oxygen. Between a first portion on the substrate side of the reflection section and a second portion at an edge on an opposite side the reflection section from the substrate, is provided a mixture portion (a first mixture portion) where a proportion of oxygen gradually decreases and a proportion of aluminum which is the light reflective material gradually increases from the second portion to the first portion. Thus, even when the reflection section is provided with portions having different compositions, development of an interface does not occur inside the reflection section.Type: ApplicationFiled: May 22, 2019Publication date: November 28, 2019Applicant: SEIKO EPSON CORPORATIONInventor: Masaaki AOTA
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Publication number: 20190129080Abstract: A wire grid polarization apparatus includes a plurality of wire-shaped metal layers arranged in parallel to each other in a region, on which light is incident, on a side of a first surface of a transmissive substrate. The wire-shaped metal layers include aluminum or silver as a principal component. Outside the region, a sacrificial electrode having an ionization tendency greater than an ionization tendency of the wire-shaped metal layers is electrically coupled to the wire-shaped metal layers. This allows the sacrificial electrode to prevent the wire-shaped metal layers from being corroded under a condition of high temperature and high humidity. Being provided outside the region, the sacrificial electrode does not impair polarization separation performance.Type: ApplicationFiled: October 29, 2018Publication date: May 2, 2019Applicant: SEIKO EPSON CORPORATIONInventor: Masaaki AOTA
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Publication number: 20180275470Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: ApplicationFiled: May 21, 2018Publication date: September 27, 2018Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Patent number: 10001685Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: GrantFiled: March 23, 2016Date of Patent: June 19, 2018Assignee: Japan Display Inc.Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Publication number: 20160202578Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: ApplicationFiled: March 23, 2016Publication date: July 14, 2016Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Patent number: 9335594Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: GrantFiled: July 30, 2014Date of Patent: May 10, 2016Assignee: Japan Display Inc.Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Patent number: 9086543Abstract: A polarization element includes a plurality of metallic thin lines that extend in one direction on one surface of a substrate, a protecting layer that is provided on the plurality of metallic thin lines, and a cavity portion that is surrounded by two metallic thin lines which are adjacent to each other, the substrate, and the protecting layer. Each end portion of the plurality of metallic thin layers has a forward tapered shape in a cross-section parallel to the one direction, and the protecting layer extends from the upper portion of the plurality of metallic thin lines to the one surface of the substrate through each end portion.Type: GrantFiled: March 15, 2013Date of Patent: July 21, 2015Assignee: Seiko Epson CorporationInventor: Masaaki Aota
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Publication number: 20140375919Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: ApplicationFiled: July 30, 2014Publication date: December 25, 2014Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Patent number: 8830409Abstract: A liquid crystal display device includes a first substrate, a second substrate and liquid crystal. The first substrate includes pixel electrodes, a peripheral circuit and a dummy wiring. The peripheral circuit and the dummy wiring are provided outside a pixel area in which the pixel electrodes are arranged. The second substrate is opposed to the first substrate through the liquid crystal. The second substrate includes a translucent conductive film that is provided on an opposite side of the second substrate to a side where the liquid crystal is present. The dummy wiring is located on an outer peripheral side of the substrates than the peripheral circuit and is provided independently of the peripheral circuit in terms of circuit. The dummy wiring is grounded outside the first substrate.Type: GrantFiled: December 26, 2007Date of Patent: September 9, 2014Assignee: Japan Display West Inc.Inventors: Yasuo Segawa, Masaaki Aota, Tomohide Onogi, Hiroshi Matsuda
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Publication number: 20130250412Abstract: A polarization element includes a plurality of metallic thin lines that extend in one direction on one surface of a substrate, a protecting layer that is provided on the plurality of metallic thin lines, and a cavity portion that is surrounded by two metallic thin lines which are adjacent to each other, the substrate, and the protecting layer. Each end portion of the plurality of metallic thin layers has a forward tapered shape in a cross-section parallel to the one direction, and the protecting layer extends from the upper portion of the plurality of metallic thin lines to the one surface of the substrate through each end portion.Type: ApplicationFiled: March 15, 2013Publication date: September 26, 2013Applicant: SEIKO EPSON CORPORATIONInventor: Masaaki AOTA
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Patent number: 8537316Abstract: A vertical alignment liquid crystal layer is sealed between a first substrate having a first electrode and a second substrate having a second electrode, each pixel region has a reflective region and a transmissive region, and a gap adjusting section is provided on one of sides of the first substrate and the second substrate which sets a thickness (gap) d of the liquid crystal layer which controls a phase difference of incident light to the liquid crystal layer so that a gap dr in the reflective region is smaller than a gap dt in the transmissive region. An alignment controller which divides alignment of the liquid crystal within a pixel region is provided in the pixel region on at least one of the sides of the first substrate and the second substrate. It is also possible to optimize by changing the gap in red, green, and blue.Type: GrantFiled: November 28, 2012Date of Patent: September 17, 2013Assignee: Sanyo Electric Co., Ltd.Inventors: Norio Koma, Kazuyuki Maeda, Masayuki Kametani, Kazuhiro Inoue, Masaaki Aota