Patents by Inventor Tsuyoshi Okazaki
Tsuyoshi Okazaki 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: 11971633Abstract: An electrode structure includes: a plurality of pixel electrodes arranged separately from each other; and a plurality of dielectric layers laminated in a first direction with respect to the plurality of pixel electrodes, in which the plurality of dielectric layers includes: a first dielectric layer that spreads over the plurality of pixel electrodes in a direction intersecting with the first direction; and a second dielectric layer that includes dielectric material having a refractive index higher than that of the first dielectric layer, sandwiches the first dielectric layer together with the plurality of pixel electrodes, and has a slit at a position overlapping space between pixel electrodes adjacent when viewed from the first direction.Type: GrantFiled: May 15, 2020Date of Patent: April 30, 2024Assignees: SONY SEMICONDUCTOR SOLUTIONS CORPORATION, SONY GROUP CORPORATIONInventors: Takashi Sakairi, Tomoaki Honda, Tsuyoshi Okazaki, Keiichi Maeda, Chiho Araki, Katsunori Dai, Shunsuke Narui, Kunihiko Hikichi, Kouta Fukumoto, Toshiaki Okada, Takuma Matsuno, Yuu Kawaguchi, Yuuji Adachi, Koichi Amari, Hideki Kawaguchi, Seiya Haraguchi, Takayoshi Masaki, Takuya Fujino, Tadayuki Dofuku, Yosuke Takita, Kazuhiro Tamura, Atsushi Tanaka
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Patent number: 11927846Abstract: A liquid crystal display device according to the present disclosure includes: a liquid crystal layer; a drive substrate including a light-shielding region and a transmissive region; a plurality of pixel electrodes that is transmissive and provided at a position corresponding to the transmissive region on the drive substrate; a counter substrate disposed to be opposed to the drive substrate with the plurality of pixel electrodes and the liquid crystal layer interposed therebetween; a first layer provided between the counter substrate and the liquid crystal layer and including a material having a first refractive index; and a second layer that is provided in at least a portion of a region corresponding to the light-shielding region in the first layer, includes a material having a second refractive index lower than the first refractive index, and has a rectangular cross-sectional shape in a thickness direction.Type: GrantFiled: July 1, 2020Date of Patent: March 12, 2024Assignee: SONY GROUP CORPORATIONInventors: Toshifumi Yasui, Tsuyoshi Okazaki
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Publication number: 20230118579Abstract: Provided is a liquid crystal display device capable of improving light utilization efficiency, without stacking a plurality of microlenses having a three-dimensional shape.Type: ApplicationFiled: March 23, 2021Publication date: April 20, 2023Inventors: SHINTARO NAKANO, TSUYOSHI OKAZAKI
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Patent number: 11573460Abstract: A liquid crystal display device includes a plurality of pixels, each pixel includes a first electrode, a second electrode opposed to the first electrode, and a liquid crystal layer between the second electrode and the first electrode; a first region in each of the plurality of pixels having a first optical path length between the first electrode and the second electrode; a second region in each of the plurality of pixels having a second optical path length between the first electrode and the second electrode, the second optical path length being shorter than the first optical path length, the second region has the liquid crystal layer equal in thickness to the liquid crystal layer in the first region; and an optical path length adjusting layer between the liquid crystal layer and the first electrode in the first region.Type: GrantFiled: March 19, 2019Date of Patent: February 7, 2023Assignee: SONY CORPORATIONInventor: Tsuyoshi Okazaki
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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: 20220326578Abstract: An electrode structure includes: a plurality of pixel electrodes arranged separately from each other; and a plurality of dielectric layers laminated in a first direction with respect to the plurality of pixel electrodes, in which the plurality of dielectric layers includes: a first dielectric layer that spreads over the plurality of pixel electrodes in a direction intersecting with the first direction; and a second dielectric layer that includes dielectric material having a refractive index higher than that of the first dielectric layer, sandwiches the first dielectric layer together with the plurality of pixel electrodes, and has a slit at a position overlapping space between pixel electrodes adjacent when viewed from the first direction.Type: ApplicationFiled: May 15, 2020Publication date: October 13, 2022Inventors: TAKASHI SAKAIRI, TOMOAKI HONDA, TSUYOSHI OKAZAKI, KEIICHI MAEDA, CHIHO ARAKI, KATSUNORI DAI, SHUNSUKE NARUI, KUNIHIKO HIKICHI, KOUTA FUKUMOTO, TOSHIAKI OKADA, TAKUMA MATSUNO, YUU KAWAGUCHI, YUUJI ADACHI, KOICHI AMARI, HIDEKI KAWAGUCHI, SEIYA HARAGUCHI, TAKAYOSHI MASAKI, TAKUYA FUJINO, TADAYUKI DOFUKU, YOSUKE TAKITA, KAZUHIRO TAMURA, ATSUSHI TANAKA
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Publication number: 20220291544Abstract: A liquid crystal display device according to the present disclosure includes: a liquid crystal layer; a drive substrate including a light-shielding region and a transmissive region; a plurality of pixel electrodes that is transmissive and provided at a position corresponding to the transmissive region on the drive substrate; a counter substrate disposed to be opposed to the drive substrate with the plurality of pixel electrodes and the liquid crystal layer interposed therebetween; a first layer provided between the counter substrate and the liquid crystal layer and including a material having a first refractive index; and a second layer that is provided in at least a portion of a region corresponding to the light-shielding region in the first layer, includes a material having a second refractive index lower than the first refractive index, and has a rectangular cross-sectional shape in a thickness direction.Type: ApplicationFiled: July 1, 2020Publication date: September 15, 2022Inventors: TOSHIFUMI YASUI, TSUYOSHI OKAZAKI
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Patent number: 11435609Abstract: The present invention provides a liquid crystal display device that, with photo-alignment films, can maintain a favorable voltage holding ratio for a long period of time and prevent generation of image sticking and stains on the display screen. The liquid crystal display device includes: an active-matrix liquid crystal panel; and a backlight, the liquid crystal panel including a liquid crystal layer, paired substrates holding the liquid crystal layer in between, and alignment films disposed on the liquid crystal layer side surfaces of the respective substrates, the alignment films each being a photo-alignment film formed from a material exhibiting photo-alignment performance, the liquid crystal layer containing a liquid crystal material and a radical scavenger.Type: GrantFiled: January 15, 2021Date of Patent: September 6, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Koichi Miyachi, Masanobu Mizusaki, Tsuyoshi Okazaki, Hiroshi Tsuchiya, Isamu Miyake, Toshihiro Matsumoto
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Patent number: 11428982Abstract: An electrode structure includes a light reflection film, an insulating film formed on the light reflection film, and a transparent conductive film formed on the insulating film. The transparent conductive film is divided into pieces in a two-dimensional matrix at a predetermined pitch to form transparent pixel electrodes. Each of the transparent pixel electrodes is connected to a corresponding one of drive electrodes formed in a lower layer underlying the light reflection film, through a corresponding one of vias penetrating the insulating film and the light reflection film and insulated from the light reflection film.Type: GrantFiled: May 31, 2019Date of Patent: August 30, 2022Assignees: SONY CORPORATION, SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Takashi Sakairi, Koichi Amari, Tomoaki Honda, Tsuyoshi Okazaki
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Publication number: 20210263378Abstract: An electrode structure includes a light reflection film, an insulating film formed on the light reflection film, and a transparent conductive film formed on the insulating film. The transparent conductive film is divided into pieces in a two-dimensional matrix at a predetermined pitch to form transparent pixel electrodes. Each of the transparent pixel electrodes is connected to a corresponding one of drive electrodes formed in a lower layer underlying the light reflection film, through a corresponding one of vias penetrating the insulating film and the light reflection film and insulated from the light reflection film.Type: ApplicationFiled: May 31, 2019Publication date: August 26, 2021Inventors: TAKASHI SAKAIRI, KOICHI AMARI, TOMOAKI HONDA, TSUYOSHI OKAZAKI
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Patent number: 11053354Abstract: The present invention provides a liquid crystal display device with a high degree of freedom in molecular structure design of an alignment film and with reduced image sticking. The liquid crystal display device includes a pair of substrates; a liquid crystal layer held between the substrates; an alignment film disposed on a liquid crystal layer side surface of at least one of the substrates; and a polymer layer disposed between the liquid crystal layer and the alignment film, the alignment film containing a first polymer containing at least one structure represented by the following formula (1) in a side chain, wherein R1 represents a C3-C6 branched or cyclic alkylene group, and a hydrogen atom at a para position to a carbonyl group in the phenyl group is optionally replaced.Type: GrantFiled: July 1, 2019Date of Patent: July 6, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Masanobu Mizusaki, Yuko Teraoka, Tsuyoshi Okazaki
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Publication number: 20210132421Abstract: The present invention provides a liquid crystal display device that, with photo-alignment films, can maintain a favorable voltage holding ratio for a long period of time and prevent generation of image sticking and stains on the display screen. The liquid crystal display device includes: an active-matrix liquid crystal panel; and a backlight, the liquid crystal panel including a liquid crystal layer, paired substrates holding the liquid crystal layer in between, and alignment films disposed on the liquid crystal layer side surfaces of the respective substrates, the alignment films each being a photo-alignment film formed from a material exhibiting photo-alignment performance, the liquid crystal layer containing a liquid crystal material and a radical scavenger.Type: ApplicationFiled: January 15, 2021Publication date: May 6, 2021Inventors: Koichi MIYACHI, Masanobu MIZUSAKI, Tsuyoshi OKAZAKI, Hiroshi TSUCHIYA, Isamu MIYAKE, Toshihiro MATSUMOTO
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Publication number: 20210063788Abstract: A liquid crystal display device includes: a plurality of pixels each of which includes a first electrode, a second electrode opposed to the first electrode, and a liquid crystal layer between the second electrode and the first electrode; a first region that is provided in each of the plurality of pixels, and has a first optical path length between the first electrode and the second electrode; a second region that is provided in each of the plurality of pixels, and has a second optical path length between the first electrode and the second electrode, the second optical path length being shorter than the first optical path length, the second region being provided with the liquid crystal layer equal in thickness to the liquid crystal layer in the first region; and an optical path length adjusting layer that is provided between the liquid crystal layer and the first electrode in the first region, and fills a difference in level between the first electrode in the second region and the first electrode in the firstType: ApplicationFiled: March 19, 2019Publication date: March 4, 2021Inventor: TSUYOSHI OKAZAKI
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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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Patent number: 10921623Abstract: The present invention provides a liquid crystal display device that, with photo-alignment films, can maintain a favorable voltage holding ratio for a long period of time and prevent generation of image sticking and stains on the display screen. The liquid crystal display device includes: an active-matrix liquid crystal panel; and a backlight, the liquid crystal panel including a liquid crystal layer, paired substrates holding the liquid crystal layer in between, and alignment films disposed on the liquid crystal layer side surfaces of the respective substrates, the alignment films each being a photo-alignment film formed from a material exhibiting photo-alignment performance, the liquid crystal layer containing a liquid crystal material and a radical scavenger.Type: GrantFiled: December 11, 2018Date of Patent: February 16, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Koichi Miyachi, Masanobu Mizusaki, Tsuyoshi Okazaki, Hiroshi Tsuchiya, Isamu Miyake, Toshihiro Matsumoto
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Patent number: 10877197Abstract: This liquid crystal display unit includes a pair of polarizers, a liquid crystal display device provided between the pair of polarizers, and an optical compensation device provided between, of the pair of polarizers, at least one polarizer and the liquid crystal display device. The optical compensation device includes an underlayer including a plurality of structures that each include first and second surfaces having different inclination angles from each other, and a multilayered film formed on the underlayer and including a plurality of first and second refractive index films that are alternately stacked one on top of another repeatedly. An array pitch of the plurality of structures in the underlayer is smaller than a wavelength of visible light.Type: GrantFiled: July 18, 2017Date of Patent: December 29, 2020Assignee: SONY CORPORATIONInventor: Tsuyoshi Okazaki
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Publication number: 20200056093Abstract: A liquid crystal display device includes a pair of substrates, a negative liquid crystal layer held between the pair of substrates, a seal portion held between the pair of substrates and disposed around the liquid crystal layer, and a pair of alignment layers each of which is disposed on a surface, adjacent to the liquid crystal layer, of a corresponding one of the substrates. The negative liquid crystal layer includes a liquid crystal composition including a compound having a functional group represented by the formula (A) below, the seal portion includes a radical polymerization initiator, the alignment layers include a polymer including polyimide, the polyimide is prepared from polyamic acid as a precursor, and the imidization ratio of the polyimide is not less than 60% with respect to the whole polymer.Type: ApplicationFiled: February 20, 2018Publication date: February 20, 2020Inventors: MASANOBU MIZUSAKI, TSUYOSHI OKAZAKI
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Patent number: 10551678Abstract: A liquid crystal display device includes: a first polarizing plate; a first substrate; a first vertical alignment film; a liquid crystal layer; a second vertical alignment film; a second substrate; and a second polarizing plate, wherein a first retardation layer is disposed between the first polarizing plate and the liquid crystal layer and includes first and second areas having mutually different in-plane phase differences, a second retardation layer is disposed between the second polarizing plate and the liquid crystal layer and includes third and fourth areas having mutually different in-plane phase differences, the first and third areas overlap boundaries between at least four domains of liquid crystal molecules in a pixel region and have an in-plane phase difference in a predetermined range, and in-plane slow axes of the first and third areas and absorption axes of the first and second polarizing plates each have a predetermined azimuth.Type: GrantFiled: September 25, 2018Date of Patent: February 4, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Tsuyoshi Okazaki, Yuko Teraoka, Hiroshi Tsuchiya, Masanobu Mizusaki, Kiyoshi Minoura
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Publication number: 20200024399Abstract: The present invention provides a liquid crystal display device with a high degree of freedom in molecular structure design of an alignment film and with reduced image sticking. The liquid crystal display device includes a pair of substrates; a liquid crystal layer held between the substrates; an alignment film disposed on a liquid crystal layer side surface of at least one of the substrates; and a polymer layer disposed between the liquid crystal layer and the alignment film, the alignment film containing a first polymer containing at least one structure represented by the following formula (1) in a side chain, wherein R1 represents a C3-C6 branched or cyclic alkylene group, and a hydrogen atom at a para position to a carbonyl group in the phenyl group is optionally replaced.Type: ApplicationFiled: July 1, 2019Publication date: January 23, 2020Inventors: MASANOBU MIZUSAKI, YUKO TERAOKA, TSUYOSHI OKAZAKI
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Patent number: 10503021Abstract: A substrate provided with an alignment film includes: a substrate including an electrode on a surface thereof; and an alignment film in contact with the electrode. The alignment film contains a first polymer that contains a polysiloxane structure in a side chain and a second polymer that contains a photo-reactive group or a vertically aligning functional group. The alignment film includes a first surface that is placed on a side close to the electrode and contains the first polymer and a second surface that is placed on a side opposite to the first surface and contains the second polymer. The first polymer has a weight that is equal to or greater than a weight of the second polymer in the alignment film.Type: GrantFiled: January 16, 2019Date of Patent: December 10, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Masanobu Mizusaki, Tsuyoshi Okazaki, Yuko Teraoka