Patents by Inventor Katsuki Ochiai

Katsuki Ochiai 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: 9805677
    Abstract: Provided is a display device, including: a display panel including a pixel electrode and a common electrode; a common voltage generating circuit configured to generate a common voltage to be supplied to the common electrode; a plurality of common transmission lines configured to transmit, to the common electrode, the common voltage generated by the common voltage generating circuit; a plurality of detection units, which are connected to the plurality of common transmission lines, respectively, and are configured to detect a transmission error of the common voltage in the plurality of common transmission lines, respectively; and a current adjusting unit configured to adjust a current amount of an output current of the common voltage generating circuit based on detection results of the plurality of detection units.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: October 31, 2017
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventor: Katsuki Ochiai
  • Publication number: 20170186391
    Abstract: Provided is a display device, including: a display panel including a pixel electrode and a common electrode; a common voltage generating circuit configured to generate a common voltage to be supplied to the common electrode; a plurality of common transmission lines configured to transmit, to the common electrode, the common voltage generated by the common voltage generating circuit; a plurality of detection units, which are connected to the plurality of common transmission lines, respectively, and are configured to detect a transmission error of the common voltage in the plurality of common transmission lines, respectively; and a current adjusting unit configured to adjust a current amount of an output current of the common voltage generating circuit based on detection results of the plurality of detection units.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 29, 2017
    Inventor: Katsuki Ochiai
  • Publication number: 20110050654
    Abstract: A backlight apparatus includes a plurality of LEDs as light-sources, a plurality of light-guiding plates, lights from the LEDs being made incident into the light-guiding plates, the incident lights being then converted into a surface-like light, and being guided onto the liquid-crystal panel side by the light-guiding plates, a plurality of LED drivers for supplying currents to the plurality of LEDs, and a plurality of LED driving boards on which the plurality of LEDs and LED drivers are implemented, wherein the plurality of LEDs are implemented on one surface of each LED driving board, and each light-guiding plate is also provided thereon, each of the LED drivers being implemented on the other surface of each LED driving board.
    Type: Application
    Filed: May 26, 2010
    Publication date: March 3, 2011
    Inventors: Toshihiro Tsutsui, Hidenao Kubota, Shigeo Ohashi, Koichi Sakita, Katsuki Ochiai