Patents by Inventor Hirohisa TSUCHIDA

Hirohisa TSUCHIDA 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).

  • Device and method for mura correction
    Patent number: 10803830
    Abstract: A device and method for correcting mura within a display device. The device may include a display driver that includes lookup table circuitry, correction amount calculation circuitry, and mura correction circuitry. The lookup table circuitry is configured to calculate a second grayscale value for a second display brightness value (DBV), the second grayscale value being determined to achieve a brightness level corresponding to a first grayscale value and a first DBV. The correction amount calculation circuitry is configured to calculate a mura correction amount based on a mura correction data for the second grayscale value and the second DBV. Further, the mura correction circuitry is configured to perform a mura correction on input image data by using the mura correction amount.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: October 13, 2020
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Kazutoshi Aogaki, Hirobumi Furihata, Hirohisa Tsuchida, Takashi Nose
  • DEVICE AND METHOD FOR MURA CORRECTION
    Publication number: 20190156786
    Abstract: A device and method for correcting mura within a display device. The device may include a display driver that includes lookup table circuitry, correction amount calculation circuitry, and mura correction circuitry. The lookup table circuitry is configured to calculate a second grayscale value for a second display brightness value (DBV), the second grayscale value being determined to achieve a brightness level corresponding to a first grayscale value and a first DBV. The correction amount calculation circuitry is configured to calculate a mura correction amount based on a mura correction data for the second grayscale value and the second DBV. Further, the mura correction circuitry is configured to perform a mura correction on input image data by using the mura correction amount.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 23, 2019
    Inventors: Kazutoshi AOGAKI, Hirobumi FURIHATA, Hirohisa TSUCHIDA, Takashi NOSE