Patents by Inventor Teruhisa Nakagawa

Teruhisa Nakagawa 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: 10437119
    Abstract: A liquid crystal display device includes: a first display panel; and a second display panel opposing to the first display panel. Each of the first and second display panel includes a plurality of source lines, a plurality of gate lines, a plurality of thin film transistors, and a plurality of pixel electrodes electrically connected to corresponding one of the thin film transistors. In a second display panel, at least two thin film transistors are electrically connected to a same second source line and a same second gate line.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: October 8, 2019
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Ikuko Mori, Teruhisa Nakagawa, Kazuhiko Tsuda, Katsuji Tanaka
  • Publication number: 20190302553
    Abstract: Techniques of reducing bezel size of liquid crystal display (LCD) devices are described. Techniques of the present subject matter allow reduction in the bezel size of an LCD device while maintaining the aspect ratio of pixels of an LCD panel. In an example, an LCD panel of the LCD device may include a plurality of sub-pixels arranged in a first direction and a second direction in a matrix arrangement, and a plurality of gate lines extending in the first direction and a plurality of source lines extending in the second direction. Further, The LCD panel may include a plurality of source lead-out lines extending in the first direction, wherein each of the plurality of source lead-out lines is electrically connected to at least one of the plurality of source lines.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 3, 2019
    Inventor: Teruhisa NAKAGAWA
  • Publication number: 20190302517
    Abstract: A curved display includes a first substrate and a second substrate in a stacked configuration. The first substrate includes pixel electrodes that are arranged in a matrix and electrical lines that extend in a first direction. The second substrate includes light shielding portions that extend in the first direction. Also disclosed is a method for manufacturing a curved display that includes attaching a first substrate to a second substrate in a stacked configuration and bending the first substrate and the second substrate to be curved.
    Type: Application
    Filed: May 23, 2019
    Publication date: October 3, 2019
    Inventor: Teruhisa NAKAGAWA
  • Publication number: 20190302500
    Abstract: A display device comprises: a thin film transistor substrate; a counter substrate disposed to be opposed to the thin film transistor substrate; and a plurality of spacers protruding from the counter substrate toward the thin film transistor substrate, wherein the counter substrate includes: a black matrix including a first opening and a second opening that are adjacent to each other in a first direction; a first color filter being disposed while overlapping with the first opening and the second opening in planar view; and a second color filter being disposed while overlapping with at least a part of a region between the first opening and the second opening in planar view, and a first spacer included in the plurality of spacers overlaps with the second color filter between the first opening and the second opening in planar view.
    Type: Application
    Filed: March 20, 2019
    Publication date: October 3, 2019
    Inventors: Takashi MIBU, Teruhisa NAKAGAWA
  • Publication number: 20190302549
    Abstract: Examples of liquid crystal display devices are described herein. In an example, a liquid crystal display device comprises a first substrate, a second substrate, and a liquid crystal layer therebetween. The second substrate comprises a plurality of source lines, a plurality of gate lines crossing the plurality of source lines, and a plurality of pixels in a matrix arrangement. A pixel from the plurality of pixels being defined by two adjacent source lines and two adjacent gate lines. A pixel electrode formed in the pixel comprises a plurality of slits. The plurality of slits includes a first set of slit segments extending in a first direction, and a second set of slit segments extending in a second direction. Further, a first light blocking member extends along a common boundary area of the first set of slit segments and the second set of slit segments.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 3, 2019
    Inventor: Teruhisa NAKAGAWA
  • Publication number: 20190302546
    Abstract: A liquid crystal display device of an in-plane switching mode is provided. The liquid crystal display device includes a first gate line and a second gate line. The liquid crystal display device also includes a first data line, a second data line, and a third data line. The liquid crystal display device further includes a first electrode and a second electrode formed in a pixel region surrounded by the first gate line, the second gate line, the first data line, and the second data line. The first electrode includes a first set of slits extending along a first direction in a first section of the pixel region and a second set of slits extending along a second direction in a second section of the pixel region. The third data line overlaps a boundary area between the first section and the second section in the pixel region in plan view.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 3, 2019
    Inventor: Teruhisa NAKAGAWA
  • Publication number: 20190265566
    Abstract: A liquid crystal display device comprises: a plurality of pixels arranged in a first direction and a second direction intersecting the first direction, the plurality of pixels including a first pixel, a second pixel, and a third pixel; a plurality of subpixel electrodes arranged in each of the plurality of pixels in the second direction; a plurality of source lines extending in the first direction and crossing a space between the plurality of subpixel electrodes and a space between the first pixel and the second pixel; a first gate lead line extending in the first direction and crossing a space between the first pixel and the second pixel; and a first gate line extending in the second direction, crossing a space between the first pixel and the third pixel, and is electrically connected to the first gate lead line.
    Type: Application
    Filed: February 25, 2019
    Publication date: August 29, 2019
    Inventor: Teruhisa NAKAGAWA
  • Patent number: 10345639
    Abstract: A curved display includes a first substrate and a second substrate in a stacked configuration. The first substrate includes pixel electrodes that are arranged in a matrix and electrical lines that extend in a first direction. The second substrate includes light shielding portions that extend in the first direction. Also disclosed is a method for manufacturing a curved display that includes attaching a first substrate to a second substrate in a stacked configuration and bending the first substrate and the second substrate to be curved.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: July 9, 2019
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Teruhisa Nakagawa
  • Patent number: 10255867
    Abstract: A display device includes a plurality of driving circuits, a plurality of terminals formed in each of the plurality of driving circuits, a plurality of signal lines connected to the plurality of terminals, a plurality of pixel electrodes, each of the plurality of pixel electrodes connected to each of the plurality of signal lines; and a switch configured to change a connection mode between the plurality of terminals and the plurality of signal lines. The plurality of signal lines includes a first line, a second line and a third line arrayed in this order. The plurality of terminals includes a first terminal. The switch, configured to change from a first connection mode to a second connection mode, the first terminal connecting the first line and the second line in the first connection mode, and the first terminal connecting the second line and the third line in the second connection mode.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 9, 2019
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Katsuji Tanaka, Teruhisa Nakagawa
  • Patent number: 10168581
    Abstract: A display device comprises spacers provided between a first substrate and a second substrate, wherein the first substrate includes: seats each of which holds the spacers, respectively; data lines; gate lines; thin film transistors; pixel electrodes corresponding to pixel regions; a common electrode facing the pixel electrodes; and common wirings being electrically connected to the common electrode, and each of the common wirings includes a bent part detouring around at least one of the seats.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: January 1, 2019
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Hironori Yasukawa, Teruhisa Nakagawa
  • Patent number: 10108044
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes first wirings extending in a first direction, second wirings extending in a second direction, third wirings extending in the first direction. A center position of a width in the second direction of the third wiring disposed at boundary between blue and red pixels is displaced to a red pixel side from a center position of a width in the second direction of the first wiring disposed at boundary between the blue and red pixels. A center position of a width in the second direction of the third wiring disposed at boundary between the red and green pixels is displaced to the red pixel side from a center position of a width in the second direction of the first wiring disposed at the boundary between the red and green pixels.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: October 23, 2018
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Teruhisa Nakagawa, Daisuke Kajita, Tsuyoshi Uchida
  • Publication number: 20180286340
    Abstract: A display device includes a plurality of driving circuits, a plurality of terminals formed in each of the plurality of driving circuits, a plurality of signal lines connected to the plurality of terminals, a plurality of pixel electrodes, each of the plurality of pixel electrodes connected to each of the plurality of signal lines; and a switch configured to change a connection mode between the plurality of terminals and the plurality of signal lines. The plurality of signal lines includes a first line, a second line and a third line arrayed in this order. The plurality of terminals includes a first terminal. The switch, configured to change from a first connection mode to a second connection mode, the first terminal connecting the first line and the second line in the first connection mode, and the first terminal connecting the second line and the third line in the second connection mode.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 4, 2018
    Inventors: Katsuji TANAKA, Teruhisa NAKAGAWA
  • Patent number: 10088719
    Abstract: A liquid crystal display device includes an arrangement of pixels, wherein each of the pixels includes at least three subpixels, wherein the second subpixel is a Red subpixel, in contrast to the traditional Red-Green-Blue subpixel configuration. Further, a signal line is disposed next to each of the subpixels, but a common line is disposed next to a subpixel which is not a Red subpixel. Thus, the second subpixel, which is a Red subpixel, has on both sides thereof signal lines, but lacks a common line next thereto.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: October 2, 2018
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Daisuke Kajita, Tsuyoshi Uchida, Teruhisa Nakagawa
  • Publication number: 20180275438
    Abstract: A liquid crystal display device includes: a first display panel; and a second display panel opposing to the first display panel. Each of the first and second display panel includes a plurality of source lines, a plurality of gate lines, a plurality of thin film transistors, and a plurality of pixel electrodes electrically connected to corresponding one of the thin film transistors. In a second display panel, at least two thin film transistors are electrically connected to a same second source line and a same second gate line.
    Type: Application
    Filed: March 22, 2018
    Publication date: September 27, 2018
    Inventors: Ikuko MORI, Teruhisa NAKAGAWA, Kazuhiko TSUDA, Katsuji TANAKA
  • Publication number: 20180259819
    Abstract: A liquid crystal display device includes a first substrate formed with a first gate line, a first source line, a first thin film transistor including a first channel region and a first semiconductor layer, and a second semiconductor layer electrically insulated from the first semiconductor layer, a second substrate disposed opposite to the first substrate, and a first liquid crystal layer disposed between the first substrate and the second substrate. The second semiconductor layer is disposed between the first thin film transistor and the first liquid crystal layer, and overlaps at least a part of the first channel region of the first thin film transistor in planar view.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 13, 2018
    Inventors: Daisuke KAJITA, Genshirou KAWACHI, Teruhisa NAKAGAWA
  • Publication number: 20180259818
    Abstract: A display device includes a first substrate formed with a first gate line, a first source line, a first thin film transistor, and a first light shielding unit; a second substrate disposed opposite to the first substrate; and a first liquid crystal layer disposed between the first substrate and the second substrate. The first light shielding unit is disposed between the first thin film transistor and the first liquid crystal layer, and overlaps at least a part of a first channel region of the first thin film transistor in planar view.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 13, 2018
    Inventors: Teruhisa NAKAGAWA, Daisuke KAJITA
  • Publication number: 20180188617
    Abstract: A liquid crystal display device includes an arrangement of pixels, wherein each of the pixels includes at least three subpixels, wherein the second subpixel is a Red subpixel, in contrast to the traditional Red-Green-Blue subpixel configuration. Further, a signal line is disposed next to each of the subpixels, but a common line is disposed next to a subpixel which is not a Red subpixel. Thus, the second subpixel, which is a Red subpixel, has on both sides thereof signal lines, but lacks a common line next thereto.
    Type: Application
    Filed: February 27, 2018
    Publication date: July 5, 2018
    Inventors: Daisuke KAJITA, Tsuyoshi UCHIDA, Teruhisa NAKAGAWA
  • Patent number: 9939694
    Abstract: A liquid crystal display device includes an arrangement of pixels, wherein each of the pixels includes at least three subpixels, wherein the second subpixel is a Red subpixel, in contrast to the traditional Red-Green-Blue subpixel configuration. Further, a signal line is disposed next to each of the subpixels, but a common line is disposed next to a subpixel which is not a Red subpixel. Thus, the second subpixel, which is a Red subpixel, has on both sides thereof signal lines, but lacks a common line next thereto.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: April 10, 2018
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Daisuke Kajita, Tsuyoshi Uchida, Teruhisa Nakagawa
  • Patent number: 9864237
    Abstract: A display device includes a seat holding the spacer. The seat is formed in a superposition region where at least the gate line, the semiconductor layer, the data line, and the organic insulator are superposed on one another in a laminated direction, the superposition region being a region facing the spacer. A whole outer periphery of the seat and the superposition region are superposed on each other in the laminated direction.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: January 9, 2018
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Hironori Yasukawa, Teruhisa Nakagawa, Daisuke Kajita
  • Patent number: 9864244
    Abstract: Provided is a display apparatus, including a substrate including: a pixel electrode; an organic insulating film; a common electrode laminated on the organic insulating film so as to be opposed to the pixel electrode via an insulating layer; a common signal line connected to the common electrode; and a transistor configured to apply, to the pixel electrode, a voltage signal input to a signal line. The pixel electrode is connected to a source electrode of the transistor via a through hole formed through the organic insulating film. The through hole includes, in at least one extending portion formed by retreating the organic insulating film toward an outer side of the through hole, a stepped portion formed by laminating a part of the common signal line.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: January 9, 2018
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Norihisa Kakinuma, Teruhisa Nakagawa, Masahiro Ishii, Daisuke Kajita