Patents by Inventor Yasushi Kawata
Yasushi Kawata 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: 20160124259Abstract: According to one embodiment, a display device includes a first substrate includes an insulating substrate including a pierced portion, a pad electrode formed on the insulating substrate, and a signal line electrically connected to the pad electrode, a wiring board includes an interconnecting wiring and located under the insulating substrate, and a conductive material provided in the pierced portion and electrically connecting the pad electrode and the interconnecting wiring to each other.Type: ApplicationFiled: November 3, 2015Publication date: May 5, 2016Applicant: Japan Display Inc.Inventor: Yasushi KAWATA
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Publication number: 20150362812Abstract: According to one embodiment, provided is a liquid crystal display device with a reduced size and little restriction for incorporation into other devices. The liquid crystal display device includes an array substrate that includes multiple thin film transistors for pixel driving. The liquid crystal display device also includes a counter substrate disposed in a manner opposed to the array substrate. The liquid crystal display device further includes an FPC arranged to transmit an external signal for driving of the thin film transistors. One of the array substrate and the counter substrate has an outline larger than that of the other, disposed on the display side, and includes a connecting portion at a position not opposed to the other on the side opposite to the display side. At least one end portion of the FPC is connected to the connecting portion, while the other end portion extends inward.Type: ApplicationFiled: May 27, 2015Publication date: December 17, 2015Applicant: Japan Display Inc.Inventors: Yoshiro AOKI, Yasushi KAWATA, Arichika ISHIDA
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Publication number: 20150338706Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal layer, a first pixel electrode, a second pixel electrode and an auxiliary electrode. The first pixel electrode includes a first corner portion, a second corner portion and a side edge portion. A first video signal is input in the first pixel electrode. A second video signal of polarity different from polarity of the first video signal is input in the second pixel electrode. The auxiliary electrode includes a first region and a second region. A voltage of the same polarity as the polarity of the first video signal is supplied to the auxiliary electrode.Type: ApplicationFiled: May 14, 2015Publication date: November 26, 2015Applicant: Japan Display Inc.Inventor: Yasushi KAWATA
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Patent number: 9190575Abstract: According to one embodiment, a method of manufacturing a display device, includes preparing a first substrate configured such that a first display element module is formed on a first glass substrate, preparing a second substrate configured such that a first peeling auxiliary layer is formed on a second glass substrate, and then a first color filter layer is formed on the first peeling auxiliary layer, attaching the first display element module and the first color filter layer, and peeling the second glass substrate from the first peeling auxiliary layer.Type: GrantFiled: September 13, 2013Date of Patent: November 17, 2015Assignee: Japan Display Inc.Inventor: Yasushi Kawata
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Publication number: 20150301399Abstract: According to one embodiment, a liquid crystal display device includes a first substrate unit including pixel electrodes arranged in a matrix configuration, a second substrate unit including counter electrodes, and a liquid crystal layer. The pixel electrodes include a first and a second pixel electrode arranged to be adjacent along one of the row direction or the column direction. An inter-pixel region is provided between the first and the second pixel electrodes. The counter electrodes include a first and a second opposing portion arranged to be adjacent along the other of the row direction or the column direction. An inter-counter electrode region is provided between the first and the second opposing portions. The inter-counter electrode region overlaps the inter-pixel region. A light-shielding layer is provided in the second substrate unit, and covers the inter-counter electrode region and the inter-pixel region.Type: ApplicationFiled: April 17, 2015Publication date: October 22, 2015Applicant: Japan Display Inc.Inventors: Masaya TAMAKI, Hayato KURASAWA, Yasushi KAWATA
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Publication number: 20150194392Abstract: According to one embodiment, a display device includes a first multilayer, second multilayer, and filler layer. The first multilayer includes a first barrier layer formed on a surface of the resin layer and a switching element formed above the first barrier layer. The second multilayer includes a second barrier layer which is substantially the same as the first barrier layer with respect to layering order, material, and thickness. The filler layer is positioned between the first multilayer and the second multilayer. A layering structure of the first barrier layer and a layering structure of the second barrier layer are symmetrical to each other with respect to the switching element.Type: ApplicationFiled: December 30, 2014Publication date: July 9, 2015Applicant: Japan Display Inc.Inventor: Yasushi KAWATA
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Publication number: 20150108488Abstract: According to one embodiment, a display device includes an underlying insulation layer formed on a surface of a resin layer, and a thin-film transistor formed above the surface of the resin layer via the underlying insulation layer. The underlying insulation layer includes a three-layer multilayer structure of a first silicon oxide film, a silicon nitride film formed above the first silicon oxide film, and a second silicon oxide film formed above the silicon nitride film.Type: ApplicationFiled: October 14, 2014Publication date: April 23, 2015Applicant: Japan Display Inc.Inventors: Masato HIRAMATSU, Yasushi KAWATA, Arichika ISHIDA
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Publication number: 20140353638Abstract: According to one embodiment, a method of manufacturing a display device, includes preparing a first substrate formed such that a first resin layer is formed on a first support substrate, preparing a second substrate formed such that a second resin layer is formed on a second support substrate, attaching the first substrate and the second substrate, peeling the second support substrate from the second resin layer by radiating a first laser beam toward the second substrate, mounting a signal supply source on a first mounting portion in a state in which the second resin layer, which is opposed to the first mounting portion, is warped in a direction away from the first mounting portion, and adhering the first resin layer and the second resin layer.Type: ApplicationFiled: May 23, 2014Publication date: December 4, 2014Applicant: Japan Display Inc.Inventor: Yasushi KAWATA
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Publication number: 20140353637Abstract: According to one embodiment, a method of manufacturing a display device, includes preparing a first substrate formed such that a first resin layer is formed on a first support substrate, and thereafter a display element portion and a mounting portion are formed above the first resin layer and a protection layer, which extends from an end portion of the first resin layer along the mounting portion onto the first support substrate, is disposed, preparing a second substrate formed such that a second resin layer is formed on a second support substrate, attaching the first substrate and the second substrate, and mounting a flexible printed circuit board, which is in a state in which the flexible printed circuit board is opposed to the protection layer, on the mounting portion.Type: ApplicationFiled: May 23, 2014Publication date: December 4, 2014Applicant: Japan Display Inc.Inventor: Yasushi KAWATA
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Publication number: 20140232962Abstract: According to one embodiment, a display device includes a first substrate including a first resin substrate having a first thermal expansion coefficient, and a first barrier layer having a second thermal expansion coefficient which is lower than the first thermal expansion coefficient, a second substrate including a second resin substrate having a third thermal expansion coefficient which is equal to the first thermal expansion coefficient, and a second barrier layer having a fourth thermal expansion coefficient which is lower than the third thermal expansion coefficient and is equal to the first thermal expansion coefficient, and a display element located between the first resin substrate and the second resin substrate.Type: ApplicationFiled: January 27, 2014Publication date: August 21, 2014Applicant: Japan Display Inc.Inventors: Arichika ISHIDA, Yasushi Kawata
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Patent number: 8780303Abstract: According to one embodiment, a liquid crystal apparatus includes a first liquid crystal panel including a pair of substrates, and a dispersed liquid crystal held between the pair of substrates, and an active mirror placed behind the first liquid crystal panel, and configured to switch a first state in which linearly polarized light whose polarizing direction is a second direction is transmitted, and a second state in which the linearly polarized light whose polarizing direction is the second direction is absorbed or reflected.Type: GrantFiled: November 16, 2011Date of Patent: July 15, 2014Assignee: Japan Display Inc.Inventors: Kenji Nakao, Akio Murayama, Yasushi Kawata
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Publication number: 20140190621Abstract: According to one embodiment, a method of manufacturing a display device, includes preparing a first substrate in which a first display element part, a first extension part, a second display element part, and a second extension part, are formed, preparing a second substrate in which a first peeling auxiliary layer, a second peeling auxiliary layer, a sacrifice layer, a first color filter layer, and a second color filter layer, are formed, attaching the first substrate and the second substrate, and radiating a laser beam on the second substrate, and peeling a second support substrate from the first peeling auxiliary layer and the second peeling auxiliary layer while blocking the laser beam by the sacrifice layer.Type: ApplicationFiled: December 24, 2013Publication date: July 10, 2014Applicant: Japan Display Inc.Inventors: Yasushi KAWATA, Akio Murayama
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Publication number: 20140093988Abstract: According to one embodiment, a method of manufacturing a display device, includes preparing a first substrate configured such that a first display element module is formed on a first glass substrate, preparing a second substrate configured such that a first peeling auxiliary layer is formed on a second glass substrate, and then a first color filter layer is formed on the first peeling auxiliary layer, attaching the first display element module and the first color filter layer, and peeling the second glass substrate from the first peeling auxiliary layer.Type: ApplicationFiled: September 13, 2013Publication date: April 3, 2014Applicant: Japan Display Inc.Inventor: Yasushi KAWATA
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Patent number: 8507420Abstract: A solvent composition includes a substance that is subject to oxidative alteration by an oxygen radical, and a compound that has a superoxide dismutase-mimetic activity that includes oxygen radical-removing capability. In the solvent composition of the invention, oxygen radicals can be removed by the compound having an superoxide dismutase-mimetic activity that includes oxygen radical-removing capability, and therefore the substance that is subject to oxidative alteration can be prevented from oxidizing.Type: GrantFiled: May 19, 2010Date of Patent: August 13, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, National University Corporation Tottori UniversityInventors: Atsushi Suzuki, Yasushi Kawata
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Publication number: 20120127394Abstract: According to one embodiment, a liquid crystal apparatus includes a first liquid crystal panel including a pair of substrates, and a dispersed liquid crystal held between the pair of substrates, and an active mirror placed behind the first liquid crystal panel, and configured to switch a first state in which linearly polarized light whose polarizing direction is a second direction is transmitted, and a second state in which the linearly polarized light whose polarizing direction is the second direction is absorbed or reflected.Type: ApplicationFiled: November 16, 2011Publication date: May 24, 2012Inventors: Kenji NAKAO, Akio Murayama, Yasushi Kawata
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Publication number: 20120119217Abstract: In one embodiment, a nonplanar display devise includes an array substrate and a counter substrate formed of non-glass material. The array substrate includes a polishing stopper layer formed on a glass substrate. A ground layer is formed on a polishing layer. A switching element is arranged on the ground layer, and a pixel electrode is connected to the switching element. The nonplanar display device is manufactures as follows. First, the glass substrate is removed from the display cell. Then, the polishing stopper layer of the array substrate is removed. Finally, the nonplanar display device is manufactured by attaching an exposed ground layer of the array substrate and an insulating layer formed of the non-glass material in the display cell.Type: ApplicationFiled: November 15, 2011Publication date: May 17, 2012Applicant: Toshiba Mobile Display Co., Ltd.Inventor: Yasushi KAWATA
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Publication number: 20120120351Abstract: According to one embodiment, a liquid crystal display device of a guest-host type includes an array substrate including a switching element and a reflective electrode connected to the switching element, a counter-substrate including a counter-electrode which is opposed to the reflective electrode, and a liquid crystal layer held between the array substrate and the counter-substrate, and including liquid crystal molecules and dichroic dyes. The liquid crystal layer has a blue phase.Type: ApplicationFiled: October 19, 2011Publication date: May 17, 2012Inventor: Yasushi KAWATA
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Patent number: 8030671Abstract: A thin film transistor layer including a thin film transistor is formed at a liquid crystal layer side of a color filter layer on an array substrate. Since it becomes possible to form the color filter layer at a position on a relatively flat glass substrate, satisfactory characteristics of the color filter layer can be obtained. The color filter layer is unlikely to have influence on the thin film transistor layer, so that the yield can be improved.Type: GrantFiled: January 8, 2009Date of Patent: October 4, 2011Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Azusa Ikeda, Yasushi Kawata
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Patent number: 8018561Abstract: Electrode slit portions are formed in a pixel electrode in a direction of crossing a slit for dividing a liquid crystal layer into a plurality of domains. A titanium oxide film is formed so as to be exposed to the liquid crystal layer side via the electrode slit portions, the titanium oxide film having a relative dielectric constant higher than that of an organic film formed at positions corresponding to the electrode slit portions. By the titanium oxide film, an electric field of each domain is set, angles between the director in the vicinity of the electrode slit portion and transmission axes of polarizing plates are made to approximately 45°, and a decrease in transmittance caused by the falling direction of the director can be suppressed. The transmittance and contrast ratio are secured, and simultaneously an excellent wide viewing angle range can be obtained.Type: GrantFiled: January 6, 2009Date of Patent: September 13, 2011Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Masaki Obi, Azusa Ikeda, Hideki Ito, Yasushi Kawata, Akio Murayama
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Patent number: 8004637Abstract: An operative reflection and absorption plate including a substrate having a moth eye structure on its surface is used, whereby an absorbing status and a reflecting status can be realized without using a polarizing plate, and a display element exhibiting a bright and high contrast can be obtained.Type: GrantFiled: November 14, 2008Date of Patent: August 23, 2011Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Yasushi Kawata, Yuuzo Hisatake, Masaki Obi