Patents by Inventor Chikashi Kobayashi
Chikashi Kobayashi 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: 11598991Abstract: A liquid crystal display is formed by arraying a plurality of pixels 10, and the pixel 10 includes a first substrate 20, a second substrate 50, a first electrode 120 formed on the first substrate 20, a second electrode 52 formed on the second substrate 50, and a liquid crystal layer 60. A pretilt angle is provided to a liquid crystal molecule 61, and the first electrode 120 is formed of a transparent conductive material layer and a foundation layer 150 including a plurality of projecting portions 130 and recessed portions 140. A first transparent conductive material layer 135 connected to a first power feeding unit is formed on a projecting portion top surface 151 of the foundation layer 150, and a second transparent conductive material layer 145 connected to a second power feeding unit is formed on a recessed portion bottom surface 152 of the foundation layer 150.Type: GrantFiled: December 23, 2021Date of Patent: March 7, 2023Assignee: SATURN LICENSING LLCInventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi
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Publication number: 20220113597Abstract: A liquid crystal display is formed by arraying a plurality of pixels 10, and the pixel 10 includes a first substrate 20, a second substrate 50, a first electrode 120 formed on the first substrate 20, a second electrode 52 formed on the second substrate 50, and a liquid crystal layer 60. A pretilt angle is provided to a liquid crystal molecule 61, and the first electrode 120 is formed of a transparent conductive material layer and a foundation layer 150 including a plurality of projecting portions 130 and recessed portions 140. A first transparent conductive material layer 135 connected to a first power feeding unit is formed on a projecting portion top surface 151 of the foundation layer 150, and a second transparent conductive material layer 145 connected to a second power feeding unit is formed on a recessed portion bottom surface 152 of the foundation layer 150.Type: ApplicationFiled: December 23, 2021Publication date: April 14, 2022Applicant: SATURN LICENSING LLCInventors: SHUNICHI SUWA, MASASHI MIYAKAWA, CHIKASHI KOBAYASHI
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Patent number: 11243439Abstract: A liquid crystal display is formed by arraying a plurality of pixels 10, and the pixel 10 includes a first substrate 20, a second substrate 50, a first electrode 120 formed on the first substrate 20, a second electrode 52 formed on the second substrate 50, and a liquid crystal layer 60. A pretilt angle is provided to a liquid crystal molecule 61, and the first electrode 120 is formed of a transparent conductive material layer and a foundation layer 150 including a plurality of projecting portions 130 and recessed portions 140. A first transparent conductive material layer 135 connected to a first power feeding unit is formed on a projecting portion top surface 151 of the foundation layer 150, and a second transparent conductive material layer 145 connected to a second power feeding unit is formed on a recessed portion bottom surface 152 of the foundation layer 150.Type: GrantFiled: September 14, 2020Date of Patent: February 8, 2022Assignee: SATURN LICENSING LLCInventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi
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Publication number: 20210373389Abstract: According to some aspects, a liquid crystal display panel comprising an electrode is provided. The electrode comprises a plurality of convex branch electrode portions arranged in a plane, the convex branch electrode portions being convex when viewed from a first direction perpendicular to the plane and extending from a central region of the electrode to a periphery of the electrode, and a plurality of concave branch electrode portions, the concave branch electrode portions being concave when viewed from the first direction, extending from the central region to the periphery and adjacent to convex branch electrode portions. According to some aspects, a method of applying a pretilt to molecules in a liquid crystal layer of a liquid crystal display panel by applying a voltage to the liquid crystal layer via first and second electrodes is provided.Type: ApplicationFiled: August 18, 2021Publication date: December 2, 2021Applicant: SATURN LICENSING LLCInventors: Shunichi SUWA, Masashi MIYAKAWA, Chikashi KOBAYASHI, YOJI NAGASE
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Patent number: 11119360Abstract: According to some aspects, a liquid crystal display panel comprising an electrode is provided. The electrode comprises a plurality of convex branch electrode portions arranged in a plane, the convex branch electrode portions being convex when viewed from a first direction perpendicular to the plane and extending from a central region of the electrode to a periphery of the electrode, and a plurality of concave branch electrode portions, the concave branch electrode portions being concave when viewed from the first direction, extending from the central region to the periphery and adjacent to convex branch electrode portions. According to some aspects, a method of applying a pretilt to molecules in a liquid crystal layer of a liquid crystal display panel by applying a voltage to the liquid crystal layer via first and second electrodes is provided.Type: GrantFiled: July 2, 2020Date of Patent: September 14, 2021Assignee: SATURN LICENSING LLCInventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi, Yoji Nagase
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Publication number: 20200409222Abstract: A liquid crystal display is formed by arraying a plurality of pixels 10, and the pixel 10 includes a first substrate 20, a second substrate 50, a first electrode 120 formed on the first substrate 20, a second electrode 52 formed on the second substrate 50, and a liquid crystal layer 60. A pretilt angle is provided to a liquid crystal molecule 61, and the first electrode 120 is formed of a transparent conductive material layer and a foundation layer 150 including a plurality of projecting portions 130 and recessed portions 140. A first transparent conductive material layer 135 connected to a first power feeding unit is formed on a projecting portion top surface 151 of the foundation layer 150, and a second transparent conductive material layer 145 connected to a second power feeding unit is formed on a recessed portion bottom surface 152 of the foundation layer 150.Type: ApplicationFiled: September 14, 2020Publication date: December 31, 2020Inventors: SHUNICHI SUWA, MASASHI MIYAKAWA, CHIKASHI KOBAYASHI
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Publication number: 20200333667Abstract: According to some aspects, a liquid crystal display panel comprising an electrode is provided. The electrode comprises a plurality of convex branch electrode portions arranged in a plane, the convex branch electrode portions being convex when viewed from a first direction perpendicular to the plane and extending from a central region of the electrode to a periphery of the electrode, and a plurality of concave branch electrode portions, the concave branch electrode portions being concave when viewed from the first direction, extending from the central region to the periphery and adjacent to convex branch electrode portions. According to some aspects, a method of applying a pretilt to molecules in a liquid crystal layer of a liquid crystal display panel by applying a voltage to the liquid crystal layer via first and second electrodes is provided.Type: ApplicationFiled: July 2, 2020Publication date: October 22, 2020Inventors: SHUNICHI SUWA, MASASHI MIYAKAWA, CHIKASHI KOBAYASHI, YOJI NAGASE
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Patent number: 10795208Abstract: A liquid crystal display is formed by arraying a plurality of pixels 10, and the pixel 10 includes a first substrate 20, a second substrate 50, a first electrode 120 formed on the first substrate 20, a second electrode 52 formed on the second substrate 50, and a liquid crystal layer 60. A pretilt angle is provided to a liquid crystal molecule 61, and the first electrode 120 is formed of a transparent conductive material layer and a foundation layer 150 including a plurality of projecting portions 130 and recessed portions 140. A first transparent conductive material layer 135 connected to a first power feeding unit is formed on a projecting portion top surface 151 of the foundation layer 150, and a second transparent conductive material layer 145 connected to a second power feeding unit is formed on a recessed portion bottom surface 152 of the foundation layer 150.Type: GrantFiled: March 3, 2015Date of Patent: October 6, 2020Assignee: SONY CORPORATIONInventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi
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Patent number: 10754200Abstract: According to some aspects, a liquid crystal display panel comprising an electrode is provided. The electrode comprises a plurality of convex branch electrode portions arranged in a plane, the convex branch electrode portions being convex when viewed from a first direction perpendicular to the plane and extending from a central region of the electrode to a periphery of the electrode, and a plurality of concave branch electrode portions, the concave branch electrode portions being concave when viewed from the first direction, extending from the central region to the periphery and adjacent to convex branch electrode portions. According to some aspects, a method of applying a pretilt to molecules in a liquid crystal layer of a liquid crystal display panel by applying a voltage to the liquid crystal layer via first and second electrodes is provided.Type: GrantFiled: August 16, 2017Date of Patent: August 25, 2020Assignee: SONY CORPORATIONInventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi, Yoji Nagase
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Patent number: 10120242Abstract: A liquid crystal display device includes a plurality of arranged pixels. Each of the pixels includes: a first substrate and a second substrate; a first electrode provided on a counter face of the first substrate, the counter face facing the second substrate; a second electrode provided on a counter face of the second substrate, the counter face facing the first substrate; and a liquid crystal layer that contains liquid crystal molecules, and is sandwiched between the first substrate and the second substrate. The liquid crystal molecules are given a pre-tilt. The first electrode includes a base layer 150 that contains a plurality of recesses and protrusions, and transparent conductive material layers 135 and 145. The first transparent conductive material layer 135 connected to a first power supply portion is formed on protrusion top faces 151 of the base layer 150.Type: GrantFiled: February 17, 2016Date of Patent: November 6, 2018Assignee: SONY CORPORATIONInventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi, Yoji Nagase, Kunihiko Nagamine
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Patent number: 10082702Abstract: A liquid-crystal display apparatus includes a plurality of rectangular pixels. Each pixel includes a first electrode and a second electrode. A slit region and a concave and convex portion are formed in the first electrode. It further includes a control circuit. The plurality of pixels are constituted of a first pixel group and a second pixel group. First data lines and for applying a voltage on the first electrode are provided closer to the first substrate than the first electrode. In each pixel that constitutes the first pixel group, a second data line extension extending from a second data line is provided adjacent to a first data line. In each pixel that constitutes the second pixel group, a first data line extension extending from the first data line is provided adjacent to the second data line.Type: GrantFiled: August 7, 2015Date of Patent: September 25, 2018Assignee: Sony CorporationInventors: Chikashi Kobayashi, Shunichi Suwa, Masashi Miyakawa, Yoji Nagase, Sumito Shiina, Seiji Shibahara, Hiroki Takahashi, Hiromasa Mitani, Kunihiko Nagamine, Koji Hidaka, Masahiko Mizuki
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Publication number: 20180052344Abstract: A liquid crystal display device includes a plurality of arranged pixels. Each of the pixels includes: a first substrate and a second substrate; a first electrode provided on a counter face of the first substrate, the counter face facing the second substrate; a second electrode provided on a counter face of the second substrate, the counter face facing the first substrate; and a liquid crystal layer that contains liquid crystal molecules, and is sandwiched between the first substrate and the second substrate. The liquid crystal molecules are given a pre-tilt. The first electrode includes a base layer 150 that contains a plurality of recesses and protrusions, and transparent conductive material layers 135 and 145. The first transparent conductive material layer 135 connected to a first power supply portion is formed on protrusion top faces 151 of the base layer 150.Type: ApplicationFiled: February 17, 2016Publication date: February 22, 2018Applicant: SONY CORPORATIONInventors: SHUNICHI SUWA, MASASHI MIYAKAWA, CHIKASHI KOBAYASHI, YOJI NAGASE, KUNIHIKO NAGAMINE
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Publication number: 20170343861Abstract: According to some aspects, a liquid crystal display panel comprising an electrode is provided. The electrode comprises a plurality of convex branch electrode portions arranged in a plane, the convex branch electrode portions being convex when viewed from a first direction perpendicular to the plane and extending from a central region of the electrode to a periphery of the electrode, and a plurality of concave branch electrode portions, the concave branch electrode portions being concave when viewed from the first direction, extending from the central region to the periphery and adjacent to convex branch electrode portions. According to some aspects, a method of applying a pretilt to molecules in a liquid crystal layer of a liquid crystal display panel by applying a voltage to the liquid crystal layer via first and second electrodes is provided.Type: ApplicationFiled: August 16, 2017Publication date: November 30, 2017Inventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi, Yoji Nagase
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Publication number: 20170285410Abstract: A liquid-crystal display apparatus includes a plurality of rectangular pixels 10. Each pixel 10 includes a first electrode 22 and a second electrode. A slit region and a concave and convex portion are formed in the first electrode 22. It further includes a control circuit. The plurality of pixels are constituted of a first pixel group and a second pixel group. First data lines 41 and 42 for applying a voltage on the first electrode 22 are provided closer to the first substrate than the first electrode 22. In each pixel that constitutes the first pixel group, a second data line extension 42A extending from a second data line 42 is provided adjacent to a first data line 41. In each pixel that constitutes the second pixel group, a first data line extension 41A extending from the first data line 41 is provided adjacent to the second data line 42.Type: ApplicationFiled: August 7, 2015Publication date: October 5, 2017Applicant: Sony CorporationInventors: CHIKASHI KOBAYASHI, SHUNICHI SUWA, MASASHI MIYAKAWA, YOJI NAGASE, SUMITO SHIINA, SEIJI SHIBAHARA, HIROKI TAKAHASHI, HIROMASA MITANI, KUNIHIKO NAGAMINE, KOJI HIDAKA, MASAHIKO MIZUKI
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Patent number: 9753330Abstract: According to some aspects, a liquid crystal display panel comprising an electrode is provided. The electrode comprises a plurality of convex branch electrode portions arranged in a plane, the convex branch electrode portions being convex when viewed from a first direction perpendicular to the plane and extending from a central region of the electrode to a periphery of the electrode, and a plurality of concave branch electrode portions, the concave branch electrode portions being concave when viewed from the first direction, extending from the central region to the periphery and adjacent to convex branch electrode portions. According to some aspects, a method of applying a pretilt to molecules in a liquid crystal layer of a liquid crystal display panel by applying a voltage to the liquid crystal layer via first and second electrodes is provided.Type: GrantFiled: November 1, 2013Date of Patent: September 5, 2017Assignee: Sony CorporationInventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi, Yoji Nagase
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Patent number: 9726944Abstract: A liquid crystal display device is provided. The liquid crystal display device including a first substrate; a second substrate; a first electrode provided on a first surface of the first substrate, the first surface facing the second substrate, the first electrode including a plurality of convex and concave portions; a second electrode provided on a second surface of the second substrate; and a liquid crystal layer provided between the first substrate and the second substrate.Type: GrantFiled: October 18, 2016Date of Patent: August 8, 2017Assignee: Sony CorporationInventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi
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Publication number: 20170139279Abstract: A liquid crystal display is formed by arraying a plurality of pixels 10, and the pixel 10 includes a first substrate 20, a second substrate 50, a first electrode 120 formed on the first substrate 20, a second electrode 52 formed on the second substrate 50, and a liquid crystal layer 60. A pretilt angle is provided to a liquid crystal molecule 61, and the first electrode 120 is formed of a transparent conductive material layer and a foundation layer 150 including a plurality of projecting portions 130 and recessed portions 140. A first transparent conductive material layer 135 connected to a first power feeding unit is formed on a projecting portion top surface 151 of the foundation layer 150, and a second transparent conductive material layer 145 connected to a second power feeding unit is formed on a recessed portion bottom surface 152 of the foundation layer 150.Type: ApplicationFiled: March 3, 2015Publication date: May 18, 2017Inventors: SHUNICHI SUWA, MASASHI MIYAKAWA, CHIKASHI KOBAYASHI
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Publication number: 20170038645Abstract: A liquid crystal display device is provided. The liquid crystal display device including a first substrate; a second substrate; a first electrode provided on a first surface of the first substrate, the first surface facing the second substrate, the first electrode including a plurality of convex and concave portions; a second electrode provided on a second surface of the second substrate; and a liquid crystal layer provided between the first substrate and the second substrate.Type: ApplicationFiled: October 18, 2016Publication date: February 9, 2017Inventors: Shunichi SUWA, Masashi MIYAKAWA, Chikashi KOBAYASHI
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Patent number: 9488878Abstract: There is provided a liquid crystal display device comprising: a first substrate (20); a second substrate (50); a first electrode (140) formed on a first surface of the first substrate (20), the first surface facing the second substrate (50), the first electrode (140) including a plurality of convex and concave portions (141); a first oriented film (21) formed on the first surface of the first substrate (20); a second electrode (160) formed on a second surface of a second substrate (50), the second surface facing the first substrate (20); and a liquid crystal layer (70) provided between the first substrate (20) and the second substrate (50), wherein at least one of the convex portions (143,144) includes a plurality of stepped portions. There is also provided a method of manufacturing a liquid crystal display device.Type: GrantFiled: April 11, 2013Date of Patent: November 8, 2016Assignee: Sony CorporationInventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi
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Patent number: 9465244Abstract: There is provided a liquid crystal display including: a liquid crystal display element which includes a pair of alignment films which are provided on facing surface sides of a pair of substrates, and a liquid crystal layer which is provided between the pair of alignment films and is configured to have a liquid crystal composition containing liquid crystal molecules having negative dielectric anisotropy, in which at least one of the pair of alignment films contains a compound obtained by crosslinking polymer compounds each including a first side chain which interacts with the liquid crystal molecules and a crosslinkable functional group as a second side chain, with each other, the liquid crystal composition configuring the liquid crystal layer contains at least one kind of an alkenyl compound represented by the following general formula (AN-1), and pretilt is applied to the liquid crystal molecules by the crosslinked compound.Type: GrantFiled: March 21, 2014Date of Patent: October 11, 2016Assignee: Sony CorporationInventors: Shunichi Suwa, Seiji Shibahara, Masashi Miyakawa, Chikashi Kobayashi