Patents by Inventor Katsuhiro Hoshina
Katsuhiro Hoshina 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: 10234738Abstract: To provide a liquid crystal display device including a plurality of gate lines extending in a first direction; a plurality of source lines extending in a second direction; and a plurality of pixel areas each surrounded by the gate line and the source line, and arranged in a matrix, wherein each of the pixel areas includes a switching device connected through a contact hole to the source line, each of the plurality of pixel areas is assigned any of at least four colors, two colors out of the four colors are alternately arranged in a same column of the pixel areas, and the switching devices in the respective pixel areas for the two colors alternately arranged share the contact hole connected to the source line.Type: GrantFiled: September 19, 2017Date of Patent: March 19, 2019Assignee: Japan Display Inc.Inventor: Katsuhiro Hoshina
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Patent number: 10048543Abstract: In one embodiment, a liquid crystal display panel includes an array substrate and a counter substrate each having a display region and a peripheral region arranged adjacent to the display region. A resin layer is formed either one of the array substrate and the counter substrate. A protrusion in the shape of a wall is arranged on the resin layer with a gap between the protrusion and the substrate opposing the protrusion. A seal material is formed between the array substrate and the counter substrate, and arranged between a peripheral portion of the display region and the protrusion for attaching the array substrate and the counter substrate. A liquid crystal layer is formed in a surrounded region by the array substrate, the counter substrate and the seal material.Type: GrantFiled: December 16, 2015Date of Patent: August 14, 2018Assignee: JAPAN DISPLAY INC.Inventors: Katsuhiro Hoshina, Tetsuya Iizuka
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Publication number: 20180088423Abstract: To provide a liquid crystal display device including a plurality of gate lines extending in a first direction; a plurality of source lines extending in a second direction; and a plurality of pixel areas each surrounded by the gate line and the source line, and arranged in a matrix, wherein each of the pixel areas includes a switching device connected through a contact hole to the source line, each of the plurality of pixel areas is assigned any of at least four colors, two colors out of the four colors are alternately arranged in a same column of the pixel areas, and the switching devices in the respective pixel areas for the two colors alternately arranged share the contact hole connected to the source line.Type: ApplicationFiled: September 19, 2017Publication date: March 29, 2018Applicant: Japan Display Inc.Inventor: Katsuhiro HOSHINA
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Patent number: 9810959Abstract: A liquid crystal display including first and second substrates with a liquid crystal layer therebetween. The first substrate includes a semiconductor layer electrode electrically connected to a first source line on a first side of a position where the semiconductor layer intersects with a gate wire in a second direction, and to a contact portion on a second side of the position. A contact portion is arranged nearer the gate line than the main pixel electrode. The main pixel electrode extends from the contact portion in the second direction and is located nearer the second side than the first side. The contact portion is connected to the main pixel electrode only by a first portion of the main pixel electrode.Type: GrantFiled: August 10, 2015Date of Patent: November 7, 2017Assignee: Japan Display Inc.Inventors: Katsuhiro Hoshina, Tetsuya Iizuka, Masato Nakamura, Kazuya Daishi
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Publication number: 20160103346Abstract: In one embodiment, a liquid crystal display panel includes an array substrate and a counter substrate each having a display region and a peripheral region arranged adjacent to the display region. A resin layer is formed either one of the array substrate and the counter substrate. A protrusion in the shape of a wall is arranged on the resin layer with a gap between the protrusion and the substrate opposing the protrusion. A seal material is formed between the array substrate and the counter substrate, and arranged between a peripheral portion of the display region and the protrusion for attaching the array substrate and the counter substrate. A liquid crystal layer is formed in a surrounded region by the array substrate, the counter substrate and the seal material.Type: ApplicationFiled: December 16, 2015Publication date: April 14, 2016Applicant: Japan Display Inc.Inventors: Katsuhiro HOSHINA, Tetsuya IIZUKA
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Patent number: 9250480Abstract: In one embodiment, a liquid crystal display panel includes an array substrate and a counter substrate each having a display region and a peripheral region arranged adjacent to the display region. A resin layer is formed either one of the array substrate and the counter substrate. A protrusion in the shape of a wall is arranged on the resin layer with a gap between the protrusion and the substrate opposing the protrusion. A seal material is formed between the array substrate and the counter substrate, and arranged between a peripheral portion of the display region and the protrusion for attaching the array substrate and the counter substrate. A liquid crystal layer is formed in a surrounded region by the array substrate, the counter substrate and the seal material.Type: GrantFiled: October 22, 2014Date of Patent: February 2, 2016Assignee: JAPAN DISPLAY INC.Inventors: Katsuhiro Hoshina, Tetsuya Iizuka
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Publication number: 20150346567Abstract: According to one embodiment, a liquid crystal display includes a first substrate including a gate wire, a source wire intersecting with the gate wire, a pixel electrode with a contact portion and a main pixel electrode extending from the contact portion, and a semiconductor layer arranged under the source wire and intersecting with the gate wire and bending under the source wire so as to extend to below the contact portion, a second substrate opposed to the array substrate, and a liquid crystal layer between the first and second substrate. The semiconductor layer is electrically connected to the source wire on one side of a position of the gate wire and to the contact portion on another side of the gate wire.Type: ApplicationFiled: August 10, 2015Publication date: December 3, 2015Applicant: Japan Display Inc.Inventors: Katsuhiro HOSHINA, Tetsuya IIZUKA, Masato NAKAMURA, Kazuya Daishi
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Patent number: 9176354Abstract: In one aspect, a liquid crystal display device includes a display region formed of plural divided regions in a row direction. First and second driving circuits are arranged to face each other interposing the display region therebetween in the row direction. The first driving circuit is connected with odd scanning lines, and the second driving circuit is connected with the even scanning lines. A channel area of the TFT of the pixels connected to the odd scanning lines is the smallest in the divided region nearest to the first driving circuit and becomes larger gradually in the divided regions distant from the first driving circuit. A channel area of the TFT of the pixels connected to the even scanning lines is the smallest in the divided region nearest to the second driving circuit and becomes larger gradually in the divided regions with distant from the second driving circuit.Type: GrantFiled: September 23, 2011Date of Patent: November 3, 2015Assignee: JAPAN DISPLAY INC.Inventors: Masaki Miyatake, Tetsuya Iizuka, Katsuhiro Hoshina
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Patent number: 9140943Abstract: According to one embodiment, a liquid crystal display includes a first substrate including a gate wire, a source wire intersecting with the gate wire, a pixel electrode with a contact portion and a main pixel electrode extending from the contact portion, and a semiconductor layer arranged under the source wire and intersecting with the gate wire and bending under the source wire so as to extend to below the contact portion, a second substrate opposed to the array substrate, and a liquid crystal layer between the first and second substrate. The semiconductor layer is electrically connected to the source wire on one side of a position of the gate wire and to the contact portion on another side of the gate wire.Type: GrantFiled: February 25, 2015Date of Patent: September 22, 2015Assignee: JAPAN DISPLAY INC.Inventors: Katsuhiro Hoshina, Tetsuya Iizuka, Masato Nakamura, Kazuya Daishi
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Publication number: 20150168791Abstract: According to one embodiment, a liquid crystal display includes a first substrate including a gate wire, a source wire intersecting with the gate wire, a pixel electrode with a contact portion and a main pixel electrode extending from the contact portion, and a semiconductor layer arranged under the source wire and intersecting with the gate wire and bending under the source wire so as to extend to below the contact portion, a second substrate opposed to the array substrate, and a liquid crystal layer between the first and second substrate. The semiconductor layer is electrically connected to the source wire on one side of a position of the gate wire and to the contact portion on another side of the gate wire.Type: ApplicationFiled: February 25, 2015Publication date: June 18, 2015Applicant: JAPAN DISPLAY INC.Inventors: Katsuhiro HOSHINA, Tetsuya IIZUKA, Masato NAKAMURA, Kazuya DAISHI
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Patent number: 9025101Abstract: According to one embodiment, a liquid crystal display includes a first substrate including a gate wire, a source wire intersecting with the gate wire, a pixel electrode with a contact portion and a main pixel electrode extending from the contact portion, and a semiconductor layer arranged under the source wire and intersecting with the gate wire and bending under the source wire so as to extend to below the contact portion, a second substrate opposed to the array substrate, and a liquid crystal layer between the first and second substrate. The semiconductor layer is electrically connected to the source wire on one side of a position of the gate wire and to the contact portion on another side of the gate wire.Type: GrantFiled: August 1, 2012Date of Patent: May 5, 2015Assignee: Japan Display Inc.Inventors: Katsuhiro Hoshina, Tetsuya Iizuka, Masato Nakamura, Kazuya Daishi
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Publication number: 20150037940Abstract: In one embodiment, a liquid crystal display panel includes an array substrate and a counter substrate each having a display region and a peripheral region arranged adjacent to the display region. A resin layer is formed either one of the array substrate and the counter substrate. A protrusion in the shape of a wall is arranged on the resin layer with a gap between the protrusion and the substrate opposing the protrusion. A seal material is formed between the array substrate and the counter substrate, and arranged between a peripheral portion of the display region and the protrusion for attaching the array substrate and the counter substrate. A liquid crystal layer is formed in a surrounded region by the array substrate, the counter substrate and the seal material.Type: ApplicationFiled: October 22, 2014Publication date: February 5, 2015Applicant: Japan Display Inc.Inventors: Katsuhiro Hoshina, Tetsuya Iizuka
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Patent number: 8902397Abstract: In one embodiment, a liquid crystal display panel includes an array substrate and a counter substrate each having a display region and a peripheral region arranged adjacent to the display region. A resin layer is formed either one of the array substrate and the counter substrate. A protrusion in the shape of a wall is arranged on the resin layer with a gap between the protrusion and the substrate opposing the protrusion. A seal material is formed between the array substrate and the counter substrate, and arranged between a peripheral portion of the display region and the protrusion for attaching the array substrate and the counter substrate. A liquid crystal layer is formed in a surrounded region by the array substrate, the counter substrate and the seal material.Type: GrantFiled: October 18, 2011Date of Patent: December 2, 2014Assignee: Japan Display Inc.Inventors: Katsuhiro Hoshina, Tetsuya Iizuka
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Publication number: 20130038829Abstract: According to one embodiment, a liquid crystal display includes a first substrate including a gate wire, a source wire intersecting with the gate wire, a pixel electrode with a contact portion and a main pixel electrode extending from the contact portion, and a semiconductor layer arranged under the source wire and intersecting with the gate wire and bending under the source wire so as to extend to below the contact portion, a second substrate opposed to the array substrate, and a liquid crystal layer between the first and second substrate. The semiconductor layer is electrically connected to the source wire on one side of a position of the gate wire and to the contact portion on another side of the gate wire.Type: ApplicationFiled: August 1, 2012Publication date: February 14, 2013Inventors: Katsuhiro HOSHINA, Tetsuya Iizuka, Masato Nakamura, Kazuya Daishi
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Publication number: 20120133874Abstract: In one embodiment, a liquid crystal display panel includes an array substrate and a counter substrate each having a display region and a peripheral region arranged adjacent to the display region. A resin layer is formed either one of the array substrate and the counter substrate. A protrusion in the shape of a wall is arranged on the resin layer with a gap between the protrusion and the substrate opposing the protrusion. A seal material is formed between the array substrate and the counter substrate, and arranged between a peripheral portion of the display region and the protrusion for attaching the array substrate and the counter substrate. A liquid crystal layer is formed in a surrounded region by the array substrate, the counter substrate and the seal material.Type: ApplicationFiled: October 18, 2011Publication date: May 31, 2012Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Katsuhiro HOSHINA, Tetsuya IlZUKA
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Publication number: 20120119982Abstract: In one aspect, a liquid crystal display device includes a display region formed of a plural divided regions in a row direction. First and second driving circuits are arranged to face each other interposing the display region therebetween in the row direction. The first driving circuit is connected with odd scanning lines, and the second driving circuit is connected with the even scanning lines. A channel area of the TFT of the pixels connected to the odd scanning lines is the smallest in the divided region nearest to the first driving circuit and becomes larger gradually in the divided regions distant from the first driving circuit. A channel area of the TFT of the pixels connected to the even scanning lines is the smallest in the divided region nearest to the second driving circuit and becomes larger gradually in the divided regions with distant from the second driving circuit.Type: ApplicationFiled: September 23, 2011Publication date: May 17, 2012Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Masaki MIYATAKE, Tetsuya Iizuka, Katsuhiro Hoshina