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).

  • Patent number: 10234738
    Abstract: 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: Grant
    Filed: September 19, 2017
    Date of Patent: March 19, 2019
    Assignee: Japan Display Inc.
    Inventor: Katsuhiro Hoshina
  • Patent number: 10048543
    Abstract: 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: Grant
    Filed: December 16, 2015
    Date of Patent: August 14, 2018
    Assignee: JAPAN DISPLAY INC.
    Inventors: Katsuhiro Hoshina, Tetsuya Iizuka
  • Publication number: 20180088423
    Abstract: 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: Application
    Filed: September 19, 2017
    Publication date: March 29, 2018
    Applicant: Japan Display Inc.
    Inventor: Katsuhiro HOSHINA
  • Patent number: 9810959
    Abstract: 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: Grant
    Filed: August 10, 2015
    Date of Patent: November 7, 2017
    Assignee: Japan Display Inc.
    Inventors: Katsuhiro Hoshina, Tetsuya Iizuka, Masato Nakamura, Kazuya Daishi
  • Publication number: 20160103346
    Abstract: 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: Application
    Filed: December 16, 2015
    Publication date: April 14, 2016
    Applicant: Japan Display Inc.
    Inventors: Katsuhiro HOSHINA, Tetsuya IIZUKA
  • Patent number: 9250480
    Abstract: 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: Grant
    Filed: October 22, 2014
    Date of Patent: February 2, 2016
    Assignee: JAPAN DISPLAY INC.
    Inventors: Katsuhiro Hoshina, Tetsuya Iizuka
  • Publication number: 20150346567
    Abstract: 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: Application
    Filed: August 10, 2015
    Publication date: December 3, 2015
    Applicant: Japan Display Inc.
    Inventors: Katsuhiro HOSHINA, Tetsuya IIZUKA, Masato NAKAMURA, Kazuya Daishi
  • Patent number: 9176354
    Abstract: 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: Grant
    Filed: September 23, 2011
    Date of Patent: November 3, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masaki Miyatake, Tetsuya Iizuka, Katsuhiro Hoshina
  • Patent number: 9140943
    Abstract: 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: Grant
    Filed: February 25, 2015
    Date of Patent: September 22, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Katsuhiro Hoshina, Tetsuya Iizuka, Masato Nakamura, Kazuya Daishi
  • Publication number: 20150168791
    Abstract: 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: Application
    Filed: February 25, 2015
    Publication date: June 18, 2015
    Applicant: JAPAN DISPLAY INC.
    Inventors: Katsuhiro HOSHINA, Tetsuya IIZUKA, Masato NAKAMURA, Kazuya DAISHI
  • Patent number: 9025101
    Abstract: 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: Grant
    Filed: August 1, 2012
    Date of Patent: May 5, 2015
    Assignee: Japan Display Inc.
    Inventors: Katsuhiro Hoshina, Tetsuya Iizuka, Masato Nakamura, Kazuya Daishi
  • Publication number: 20150037940
    Abstract: 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: Application
    Filed: October 22, 2014
    Publication date: February 5, 2015
    Applicant: Japan Display Inc.
    Inventors: Katsuhiro Hoshina, Tetsuya Iizuka
  • Patent number: 8902397
    Abstract: 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: Grant
    Filed: October 18, 2011
    Date of Patent: December 2, 2014
    Assignee: Japan Display Inc.
    Inventors: Katsuhiro Hoshina, Tetsuya Iizuka
  • Publication number: 20130038829
    Abstract: 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: Application
    Filed: August 1, 2012
    Publication date: February 14, 2013
    Inventors: Katsuhiro HOSHINA, Tetsuya Iizuka, Masato Nakamura, Kazuya Daishi
  • Publication number: 20120133874
    Abstract: 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: Application
    Filed: October 18, 2011
    Publication date: May 31, 2012
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Katsuhiro HOSHINA, Tetsuya IlZUKA
  • Publication number: 20120119982
    Abstract: 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: Application
    Filed: September 23, 2011
    Publication date: May 17, 2012
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Masaki MIYATAKE, Tetsuya Iizuka, Katsuhiro Hoshina