Patents by Inventor Akiko Toriyama
Akiko Toriyama 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: 20230400755Abstract: An optical phase modulation element of the present disclosure includes a plurality of divided regions provided in different regions in an in-plane direction and encapsulating a liquid crystal material having a different refractive index anisotropy, in which the plurality of divided regions each displays a phase distribution pattern for a color having a different wavelength.Type: ApplicationFiled: August 13, 2021Publication date: December 14, 2023Inventors: AKIKO TORIYAMA, TAKAHIRO MOCHIZUKI
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Patent number: 11624970Abstract: A projection liquid crystal display device including a first optical system that splits a light beam outputted from a light source into a red light beam, a green light beam, and a blue light beam, a red liquid crystal panel, a green liquid crystal panel, and a blue liquid crystal panel that modulate the red light beam, the green light beam, and the blue light beam, respectively, a second optical system that combines the modulated red light beam, the modulated green light beam, and the modulated blue light beam into one optical path, and a projection lens system that projects a light beam outputted from the second optical system on a projection surface, in which a configuration of a liquid crystal layer of the red liquid crystal panel is different from respective configurations of liquid crystal layers of the green liquid crystal panel and the blue liquid crystal panel.Type: GrantFiled: August 7, 2019Date of Patent: April 11, 2023Assignee: SONY CORPORATIONInventors: Akiko Toriyama, Yoshitaka Yagi
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Publication number: 20220390783Abstract: It is an object of the present disclosure to dispose an optical element on a lower surface side of transistors without being influenced by heat treatment in a transistor forming process such that peeling, displacement, and the like do not easily occur. A transistor array substrate includes: a first substrate (110) including transistors (113) arranged in an array; and a second substrate (120) including an optical element (122), in which the transistors are arranged on a front surface side of the first substrate, and the second substrate is bonded to a back surface of the first substrate by plasma bonding treatment.Type: ApplicationFiled: October 19, 2020Publication date: December 8, 2022Inventors: KOICHI AMARI, KOICHI NAGASAWA, HITOSHI TSUNO, YOSHIHIKO KAJIYA, SHINTARO NAKANO, TSUYOSHI OKAZAKI, AKIKO TORIYAMA, YOSHITAKA YAGI, KEIICHI MAEDA, TAKASHI SAKAIRI, TSUTOMU TANAKA
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Publication number: 20220113611Abstract: A projection liquid crystal display device (1) including: a first optical system that splits a light beam outputted from a light source (40) into a red light beam, a green light beam, and a blue light beam; a red liquid crystal panel (100R), a green liquid crystal panel (100G), and a blue liquid crystal panel (100B) that modulate the red light beam, the green light beam, and the blue light beam, respectively; a second optical system that combines the modulated red light beam, the modulated green light beam, and the modulated blue light beam into one optical path; and a projection lens system that projects a light beam outputted from the second optical system on a projection surface (30), in which respective driving voltages of the red liquid crystal panel (100R), the green liquid crystal panel (100G), and blue liquid crystal panel (100B) are identical to each other, and a configuration of a liquid crystal layer (110) of the red liquid crystal panel (100R) is different from respective configurations of liquidType: ApplicationFiled: August 7, 2019Publication date: April 14, 2022Inventors: AKIKO TORIYAMA, YOSHITAKA YAGI
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Patent number: 10928679Abstract: An optical compensation element includes a first member that includes a first transparent substrate, a first alignment film, and a first phase difference layer and a second member that includes a second transparent substrate, a second alignment film, and a second phase difference layer. In the optical compensation element, a first inorganic barrier layer is formed on a surface of the first phase difference layer, where the surface faces the second member a second inorganic barrier layer is formed on a surface of the second phase difference layer, where the surface faces the second member and the first inorganic barrier layer and the second inorganic barrier layer are bonded by an adhesive layer.Type: GrantFiled: July 26, 2017Date of Patent: February 23, 2021Assignee: SONY CORPORATIONInventors: Akiko Toriyama, Koichi Nagasawa, Tsuyoshi Okazaki
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Publication number: 20190204647Abstract: An optical compensation element 10 includes: a first member 20 that includes a first transparent substrate 121, a first alignment film 122, and a first phase difference layer 123; and a second member 30 that includes a second transparent substrate 221, a second alignment film 222, and a second phase difference layer 223. In the optical compensation element 10, a first inorganic barrier layer 124 is formed on a surface of the first phase difference layer 123, where the surface faces the second member 30; a second inorganic barrier layer 124 is formed on a surface of the second phase difference layer 223, where the surface faces the second member 20; and the first inorganic barrier layer 124 and the second inorganic barrier layer 224 are bonded by an adhesive layer 40.Type: ApplicationFiled: July 26, 2017Publication date: July 4, 2019Inventors: AKIKO TORIYAMA, KOICHI NAGASAWA, TSUYOSHI OKAZAKI
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Patent number: 8212985Abstract: Disclosed herein is a liquid crystal display element in which a liquid crystal layer is interposed between a pair of substrates laminated to each other by a sealing material such that alignment films are opposed to each other with a predetermined gap between the alignment films, wherein a range of dielectric anisotropy ?? of a material for the liquid crystal layer at a measured temperature of 70° C. is ?4.5 to less than zero.Type: GrantFiled: August 24, 2007Date of Patent: July 3, 2012Assignee: Sony CorporationInventors: Hidenobu Kuroi, Akiko Toriyama, Yasuhiro Shirasaka, Hisashi Kadota, Hajime Tsuchiya, Jun Takahama
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Patent number: 8004634Abstract: A liquid crystal display device and a projection type liquid crystal display apparatus are provided. The liquid crystal display device includes two substrates opposed each other, a liquid crystal layer arranged between the two substrates, a plurality of pixel electrodes arranged on the opposed surfaces of the substrates to form pixels in a matrix form, and alignment films formed on the two substrates to align liquid crystal of the liquid crystal layer in a predetermined direction. The pixels arranged in the matrix form have different spacings between the pixels.Type: GrantFiled: October 21, 2008Date of Patent: August 23, 2011Assignee: Sony CorporationInventors: Akiko Toriyama, Keisuke Matsui
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Patent number: 7808587Abstract: A light-shielding plate and a first light-shielding layer are arranged between a polarizing plate and a liquid crystal layer in a peripheral region of a liquid crystal panel so that linearly polarized light transmitted through the polarizing plate, which is a reflection polarizing plate, is not incident on the liquid crystal layer, but is reflected to the polarizing plate in the peripheral region.Type: GrantFiled: September 4, 2008Date of Patent: October 5, 2010Assignee: Sony CorporationInventors: Yasuhiro Shirasaka, Kohichi Ohmura, Hisashi Kadota, Akiko Toriyama, Tsuyoshi Okazaki
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Publication number: 20090128720Abstract: A liquid crystal display device and a projection type liquid crystal display apparatus are provided. The liquid crystal display device includes two substrates opposed each other, a liquid crystal layer arranged between the two substrates, a plurality of pixel electrodes arranged on the opposed surfaces of the substrates to form pixels in a matrix form, and alignment films formed on the two substrates to align liquid crystal of the liquid crystal layer in a predetermined direction. The pixels arranged in the matrix form have different spacings between the pixels.Type: ApplicationFiled: October 21, 2008Publication date: May 21, 2009Applicant: Sony CorporationInventors: Akiko Toriyama, Keisuke Matsui
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Publication number: 20090059174Abstract: A light-shielding plate and a first light-shielding layer are arranged between a polarizing plate and a liquid crystal layer in a peripheral region of a liquid crystal panel so that linearly polarized light transmitted through the polarizing plate, which is a reflection polarizing plate, is not incident on the liquid crystal layer, but is reflected to the polarizing plate in the peripheral region.Type: ApplicationFiled: September 4, 2008Publication date: March 5, 2009Applicant: SONY CORPORATIONInventors: Yasuhiro Shirasaka, Kohichi Ohmura, Hisashi Kadota, Akiko Toriyama, Tsuyoshi Okazaki
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Patent number: 7453544Abstract: A liquid crystal display device having a high quality able to prevent deterioration etc. of a liquid crystal panel even when a liquid crystal panel used in a light valve of a projector etc. is operated under a high temperature and high humidity environment and a projection type display apparatus using the liquid crystal display device, wherein a liquid crystal layer 16 is sandwiched between a pair of substrates formed by bonding a TFT array substrate 11 and a counter substrate 12 by a sealing material 15 so that they face each other across a predetermined gap, the sealing material 15 contains a nonconductive filler having a mean particle size of less than 0.5 ?m, a liquid crystal material used in the liquid crystal layer 16 is set in its refractive index anisotropy an at room temperature to 0.16 or more, and a cell gap d of an interval between the TFT array substrate 11 and the counter substrate 12 is set at 3 ?m or less.Type: GrantFiled: November 16, 2004Date of Patent: November 18, 2008Assignee: Sony CorporationInventors: Akiko Toriyama, Hisashi Kadota, Makoto Hashimoto, Hirohide Fukumoto, Hiromi Fukumori
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Publication number: 20080055492Abstract: Disclosed herein is a liquid crystal display element in which a liquid crystal layer is interposed between a pair of substrates laminated to each other by a sealing material such that alignment films are opposed to each other with a predetermined gap between the alignment films, wherein a range of dielectric anisotropy ?? of a material for the liquid crystal layer at a measured temperature of 70° C. is ?4.5 to less than zero.Type: ApplicationFiled: August 24, 2007Publication date: March 6, 2008Inventors: Hidenobu Kuroi, Akiko Toriyama, Yasuhiro Shirasaka, Hisashi Kadota, Hirohide Fukumoto, Hajime Tsuchiya, Jun Takahama
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Publication number: 20070121050Abstract: A liquid crystal display device having a high quality able to prevent deterioration etc. of a liquid crystal panel even when a liquid crystal panel used in a light valve of a projector etc. is operated under a high temperature and high humidity environment and a projection type display apparatus using the liquid crystal display device, wherein a liquid crystal layer 16 is sandwiched between a pair of substrates formed by bonding a TFT array substrate 11 and a counter substrate 12 by a sealing material 15 so that they face each other across a predetermined gap, the sealing material 15 contains a nonconductive filler having a mean particle size of less than 0.5 ?m, a liquid crystal material used in the liquid crystal layer 16 is set in its refractive index anisotropy ?n at room temperature to 0.16 or more, and a cell gap d of an interval between the TFT array substrate 11 and the counter substrate 12 is set at 3 ?m or less.Type: ApplicationFiled: November 16, 2004Publication date: May 31, 2007Applicant: Sony CorporationInventors: Akiko Toriyama, Hisashi Kadota, Makoto Hashimoto, Hirohide Fukumoto, Hiromi Fukumori
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Patent number: 7167229Abstract: An active matrix drive type liquid crystal display element capable of preventing deterioration of display capability caused by a stripe domain, and a projection type display device using the liquid crystal display element, by which there is provided a projection type display device comprising a light source; a light convergence optical system for guiding a light emitted from said light source to a liquid crystal display element; and a projection optical system for enlarging and projecting a light subjected to light modulation by said liquid crystal display element; wherein the liquid crystal display element is configured by holding a liquid crystal layer between a pair of substrates arranged to face to each other, and a twisted nematic type liquid crystal material used in the liquid crystal layer satisfies dielectric constant anisotropy ?? of 0<??<8 and twist elasticity modulus K22 of K22>6.0 pN when the refractive index anisotropy ?n is 0.16??n?0.Type: GrantFiled: March 28, 2005Date of Patent: January 23, 2007Assignee: Sony CorporationInventors: Akiko Toriyama, Mieko Suzuki
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Patent number: 7123336Abstract: An active matrix drive type liquid crystal display element capable of preventing deterioration of display capability caused by a stripe domain, and a projection type display device using the liquid crystal display element, by which there is provided a projection type display device comprising a light source; a light convergence optical system for guiding a light emitted from said light source to a liquid crystal display element; and a projection optical system for enlarging and projecting a light subjected to light modulation by said liquid crystal display element; wherein the liquid crystal display element is configured by holding a liquid crystal layer between a pair of substrates arranged to face to each other, and a twisted nematic type liquid crystal material used in the liquid crystal layer satisfies dielectric constant anisotropy ?? of 0<??<8 and twist elasticity modulus K22 of K22>6.0 pN when the refractive index anisotropy ?n is 0.16??n?0.Type: GrantFiled: September 30, 2003Date of Patent: October 17, 2006Assignee: Sony CorporationInventors: Akiko Toriyama, Mieko Suzuki
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Publication number: 20050185132Abstract: An active matrix drive type liquid crystal display element capable of preventing deterioration of display capability caused by a stripe domain, and a projection type display device using the liquid crystal display element, by which there is provided a projection type display device comprising a light source; a light convergence optical system for guiding a light emitted from said light source to a liquid crystal display element; and a projection optical system for enlarging and projecting a light subjected to light modulation by said liquid crystal display element; wherein the liquid crystal display element is configured by holding a liquid crystal layer between a pair of substrates arranged to face to each other, and a twisted nematic type liquid crystal material used in the liquid crystal layer satisfies dielectric constant anisotropy ?? of 0<??<8 and twist elasticity modulus K22 of K22>6.0 pN when the refractive index anisotropy ?n is 0.16??n?0.Type: ApplicationFiled: March 28, 2005Publication date: August 25, 2005Inventors: Akiko Toriyama, Mieko Suzuki
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Publication number: 20050024578Abstract: An active matrix drive type liquid crystal display element capable of preventing deterioration of display capability caused by a stripe domain, and a projection type display device using the liquid crystal display element, by which there is provided a projection type display device comprising a light source; a light convergence optical system for guiding a light emitted from said light source to a liquid crystal display element; and a projection optical system for enlarging and projecting a light subjected to light modulation by said liquid crystal display element; wherein the liquid crystal display element is configured by holding a liquid crystal layer between a pair of substrates arranged to face to each other, and a twisted nematic type liquid crystal material used in the liquid crystal layer satisfies dielectric constant anisotropy ?? of 0<??<8 and twist elasticity modulus K22 of K22>6.0 pN when the refractive index anisotropy ?n is 0.16??n?0.Type: ApplicationFiled: September 30, 2003Publication date: February 3, 2005Inventors: Akiko Toriyama, Mieko Suzuki
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Patent number: 6724457Abstract: A liquid crystal display device comprises a first substrate, a columnar spacer formed on the first substrate and exhibiting light shielding properties, an alignment film formed to covet at least a part of the columnar spacer, a second substrate arranged to face the first substrate with a predetermined gap provided by the columnar spacer between the first and second substrates, and a liquid crystal material arranged within the gap. The columnar spacer is tapered in the forward direction as viewed from the first substrate in that portion of the columnar spacer which is positioned closest to the second substrate and has the largest diameter portion in the region other than that region of the columnar spacer which is positioned closest to the first substrate.Type: GrantFiled: November 9, 2000Date of Patent: April 20, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Kazuyuki Sunohara, Atsuyuki Manabe, Hiroyuki Nagata, Natsuko Maya, Akiko Toriyama