Patents by Inventor Midori Tsukane
Midori Tsukane 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: 11656505Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate and a pixel electrode, a second substrate including a second transparent substrate and a common electrode opposed to the pixel electrode, a liquid crystal layer located between the first substrate and the second substrate and containing a polymer and liquid crystal molecules, a sealant bonding the first substrate and the second substrate and sealing in the liquid crystal layer, and a light-emitting element. The second transparent substrate comprises a side surface opposed to the light-emitting element. A color of the sealant is black, yellow or red.Type: GrantFiled: June 3, 2022Date of Patent: May 23, 2023Assignee: Japan Display Inc.Inventors: Midori Tsukane, Toshiyuki Higano
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Publication number: 20220291536Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate and a pixel electrode, a second substrate including a second transparent substrate and a common electrode opposed to the pixel electrode, a liquid crystal layer located between the first substrate and the second substrate and containing a polymer and liquid crystal molecules, a sealant bonding the first substrate and the second substrate and sealing in the liquid crystal layer, and a light-emitting element. The second transparent substrate comprises a side surface opposed to the light-emitting element. A color of the sealant is black, yellow or red.Type: ApplicationFiled: June 3, 2022Publication date: September 15, 2022Applicant: Japan Display Inc.Inventors: Midori TSUKANE, Toshiyuki HIGANO
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Patent number: 11391996Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate and a pixel electrode, a second substrate including a second transparent substrate and a common electrode opposed to the pixel electrode, a liquid crystal layer located between the first substrate and the second substrate and containing a polymer and liquid crystal molecules, a sealant bonding the first substrate and the second substrate and sealing in the liquid crystal layer, and a light-emitting element. The second transparent substrate comprises a side surface opposed to the light-emitting element. A color of the sealant is black, yellow or red.Type: GrantFiled: May 6, 2021Date of Patent: July 19, 2022Assignee: Japan Display Inc.Inventors: Midori Tsukane, Toshiyuki Higano
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Publication number: 20210255493Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate and a pixel electrode, a second substrate including a second transparent substrate and a common electrode opposed to the pixel electrode, a liquid crystal layer located between the first substrate and the second substrate and containing a polymer and liquid crystal molecules, a sealant bonding the first substrate and the second substrate and sealing in the liquid crystal layer, and a light-emitting element. The second transparent substrate comprises a side surface opposed to the light-emitting element. A color of the sealant is black, yellow or red.Type: ApplicationFiled: May 6, 2021Publication date: August 19, 2021Applicant: Japan Display Inc.Inventors: Midori TSUKANE, Toshiyuki HIGANO
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Patent number: 10456710Abstract: According to one embodiment, the liquid crystal material processing device includes a syringe containing contents composed of a liquid crystal material and the like, having a distal end portion constituting a first discharge pipe, an agitation mechanism agitating the contents of the syringe, a vacuum chamber having a second discharge pipe penetrating the bottom to connect to the first discharge pipe of the syringe. The agitation mechanism agitates the liquid crystal material and the pure water in the syringe, and purifies the liquid crystal material by causing water-soluble impurities to transfer to the pure water. The agitation mechanism agitates the liquid crystal material remaining in the syringe after the water layer has been discharged. The evacuation mechanism evacuates the vacuum chamber and causes the liquid crystal material to be degassed while the remaining liquid crystal material is agitated.Type: GrantFiled: June 30, 2016Date of Patent: October 29, 2019Assignee: Japan Display Inc.Inventors: Midori Tsukane, Daiichi Suzuki, Yoshifumi Saeki
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Patent number: 10254590Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, a first alignment film, and a sealant, wherein the first alignment film is an optical alignment film, the sealant includes an epoxy resin not having an acrylate skeleton and a resin having an acrylate skeleton, a storage elastic modulus of the sealant is greater than or equal to 1.0×107 Pa and less than or equal to 1.5×109 Pa, and at least a part of the sealant is in contact with the first alignment film.Type: GrantFiled: March 21, 2016Date of Patent: April 9, 2019Assignee: Japan Display Inc.Inventors: Noboru Kunimatsu, Toshiyuki Higano, Midori Tsukane, Kazuhiro Nishiyama
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Publication number: 20170014732Abstract: According to one embodiment, the liquid crystal material processing device includes a syringe containing contents composed of a liquid crystal material and the like, having a distal end portion constituting a first discharge pipe, an agitation mechanism agitating the contents of the syringe, a vacuum chamber having a second discharge pipe penetrating the bottom to connect to the first discharge pipe of the syringe. The agitation mechanism agitates the liquid crystal material and the pure water in the syringe, and purifies the liquid crystal material by causing water-soluble impurities to transfer to the pure water. The agitation mechanism agitates the liquid crystal material remaining in the syringe after the water layer has been discharged. The evacuation mechanism evacuates the vacuum chamber and causes the liquid crystal material to be degassed while the remaining liquid crystal material is agitated.Type: ApplicationFiled: June 30, 2016Publication date: January 19, 2017Applicant: Japan Display Inc.Inventors: Midori TSUKANE, Daiichi SUZUKI, Yoshifumi SAEKI
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Publication number: 20160282647Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, a first alignment film, and a sealant, wherein the first alignment film is an optical alignment film, the sealant includes an epoxy resin not having an acrylate skeleton and a resin having an acrylate skeleton, a storage elastic modulus of the sealant is greater than or equal to 1.0×107 Pa and less than or equal to 1.5×109 Pa, and at least a part of the sealant is in contact with the first alignment film.Type: ApplicationFiled: March 21, 2016Publication date: September 29, 2016Applicant: Japan Display Inc.Inventors: Noboru KUNIMATSU, Toshiyuki HIGANO, Midori TSUKANE, Kazuhiro NISHIYAMA
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Publication number: 20150109569Abstract: An object of the present invention is to realize a liquid crystal display device having a photo-aligned alignment film in which the alignment film is overlapped with a seal material to downsize a frame area, and the reliability of a seal portion can be secured. A first alignment film and a second alignment film are overlapped with a seal material, the first alignment film and the second alignment film are made of material containing 0.5 wt % or larger and 2 wt % or smaller of an amine-system silane coupling agent, and the shrinkage ratio and the storage elastic modulus of the seal material evaluated using the modulus of volume change by a specific gravity cup method are 5.1% or smaller and 9.2 Pa or smaller, respectively. Accordingly, a frame area can be downsized, and the reliability of a seal portion can be maintained.Type: ApplicationFiled: October 21, 2014Publication date: April 23, 2015Inventors: Noboru KUNIMATSU, Yasushi TOMIOKA, Toshiyuki HIGANO, Emi HIGANO, Midori TSUKANE, Hirofumi WAKEMOTO, Kazuhiro NISHIYAMA
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Patent number: 8416167Abstract: A liquid crystal display device of an OCB mode includes a liquid crystal layer held between an array substrate and a counter-substrate, and a display section composed of display pixels arrayed in a matrix. The array substrate includes pixel electrodes which are disposed in association with the display pixels. The counter-substrate includes a counter-electrode opposed to the pixel electrodes. The substrates include a pair of alignment films which are disposed on the pixel electrodes and the counter-electrode, respectively, and are subjected to rubbing treatment to control an alignment state of liquid crystal molecules included in the layer. A transition-nucleus formation section, which generates an electric field for transitioning the alignment state of the liquid crystal molecules included in the layer from a non-display state to a display state, is provided on a terminal-end side of a rubbing direction of each of the alignment films in each of the display pixels.Type: GrantFiled: May 24, 2007Date of Patent: April 9, 2013Assignee: Japan Display Central Inc.Inventors: Tetsuo Fukami, Midori Tsukane, Kenji Nakao
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Publication number: 20090197018Abstract: A liquid crystal layer is formed of a liquid crystal composition including at least one of a compound A which includes a compound of two 6-membered rings in a main skeleton, one of the 6-membered rings being a benzene ring and the other of the 6-membered rings being a cyclohexane ring, and which is expressed by a general formula (1), and a compound B in which both of the two 6-membered rings are cyclohexane rings, and which is expressed by a general formula (2), (each of R and R? represents an alkyl group or an alkenyl group with a carbon atom number of 2 to 5, and a case in which R and R? are identical is included).Type: ApplicationFiled: February 3, 2009Publication date: August 6, 2009Inventors: Midori TSUKANE, Hirofumi Wakemoto
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Publication number: 20070290976Abstract: An object is to provide an OCB-mode liquid crystal display device causing no flicker even with varying environment temperature, and flicker prevention is offered by dividing a transition voltage to that of a first pulse and that of a latter pulse, and varying a ratio of pulse width of a transition voltage, i.e., between the first pulse and the latter pulse, together with any detected environment temperature.Type: ApplicationFiled: June 11, 2007Publication date: December 20, 2007Applicant: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Midori Tsukane, Kenji Nakao
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Publication number: 20070273634Abstract: A liquid crystal display device of an OCB mode includes a liquid crystal layer held between an array substrate and a counter-substrate, and a display section composed of display pixels arrayed in a matrix. The array substrate includes pixel electrodes which are disposed in association with the display pixels. The counter-substrate includes a counter-electrode opposed to the pixel electrodes. The substrates include a pair of alignment films which are disposed on the pixel electrodes and the counter-electrode, respectively, and are subjected to rubbing treatment to control an alignment state of liquid crystal molecules included in the layer. A transition-nucleus formation section, which generates an electric field for transitioning the alignment state of the liquid crystal molecules included in the layer from a non-display state to a display state, is provided on a terminal-end side of a rubbing direction of each of the alignment films in each of the display pixels.Type: ApplicationFiled: May 24, 2007Publication date: November 29, 2007Inventors: Tetsuo Fukami, Midori Tsukane, Kenji Nakao