Patents by Inventor Hiroki Sugaya

Hiroki Sugaya 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).

  • Publication number: 20240094586
    Abstract: An active matrix substrate includes a plurality of pixel electrodes; a plurality of switching elements that connect to each of the plurality of pixel electrodes; a plurality of pixel lines that connect to each of the plurality of switching elements; a plurality of connection lines that connect to each of the plurality of pixel lines; and a plurality of terminals that connect to each of the plurality of connection lines. An arrangement direction of the pixel lines and an arrangement direction of the terminals differ.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 21, 2024
    Applicant: TIANMA JAPAN, LTD.
    Inventors: Hiroki SUGAYA, Fuminori TAMURA, Takayuki ISHINO
  • Patent number: 10359667
    Abstract: Provided are a backlight unit and a liquid crystal display device. The backlight unit includes: one or plural LED light sources including N-colored LEDs; a photo-detecting section which measures light intensities of red, green and blue colors of received light and outputs corresponding signals; a driver section including N LED-drivers; and a control section including a drive-condition calculating section and a memory. The drive-condition calculating section calculates control signals for three colors among the N colors, on the basis of information stored in the memory and the signals outputted by the photo-detecting section, makes a pair of each remaining color and one of the three colors, outputs the control signals for three colors to the corresponding three LED drivers, and outputs a control signal determined by using the control signal for a color paired with each remaining color to the LED driver for the each remaining color.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: July 23, 2019
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventor: Hiroki Sugaya
  • Publication number: 20150261042
    Abstract: Provided are a surface light-emitting device and a liquid crystal display apparatus. The surface light-emitting device includes: a casing; one or plural point light sources arranged on a bottom surface of the casing; a first diffusion member arranged to be separated from the one or plural point light sources; a reflection plate capable of transmitting light and arranged between the one or plural point light sources and the first diffusion member; and a second diffusion member adjacent to the reflection plate. In the reflection plate, through holes are formed in a region corresponding to each of the one or plurality of point light sources. The through holes in the region are located at the right above position of the corresponding point light source and positions surrounding the right above position such that the through hole located farther from the right above position has a greater opening size.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 17, 2015
    Applicant: NLT Technologies, Ltd.
    Inventor: Hiroki SUGAYA
  • Publication number: 20150230310
    Abstract: Provided are a backlight unit and a liquid crystal display device. The backlight unit includes: one or plural LED light sources including N-colored LEDs; a photo-detecting section which measures light intensities of red, green and blue colors of received light and outputs corresponding signals; a driver section including N LED-drivers; and a control section including a drive-condition calculating section and a memory. The drive-condition calculating section calculates control signals for three colors among the N colors, on the basis of information stored in the memory and the signals outputted by the photo-detecting section, makes a pair of each remaining color and one of the three colors, outputs the control signals for three colors to the corresponding three LED drivers, and outputs a control signal determined by using the control signal for a color paired with each remaining color to the LED driver for the each remaining color.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 13, 2015
    Inventor: Hiroki SUGAYA
  • Patent number: 9057911
    Abstract: A direct type LED backlight device improves color unevenness on the periphery of the display region without increase of the driver and its control circuit and contour change of a liquid crystal panel. This device includes a bottom wall, a set of optical members arranged opposite to an inner surface of the bottom wall, a side wall maintaining the bottom wall and the set of optical members at a predetermined distance, and LEDs fixed to the inner surface of the bottom wall. The side wall has a protrusion protruding toward a central portion of a space formed by the bottom wall, the side wall, and the set of optical members. At least part of emission surfaces of the LEDs arranged at outermost positions are overlapped with the protrusion and located at such positions as to be invisible when seen along a direction perpendicular to the set of optical members.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: June 16, 2015
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventor: Hiroki Sugaya