Patents by Inventor Ryosuke NIIZUMA

Ryosuke NIIZUMA 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).

  • Display device and display method
    Patent number: 11580932
    Abstract: A display device, includes: a first processor configured to increase or decrease values of color components representing three colors and included in a first video signal, in accordance with values corresponding to the values of the color components representing three colors; a second processor configured to convert a second video signal into a third video signal, the second video signal including the color components representing three colors and having the values increased or decreased by the first processor, and the third video signal including color components representing four colors; and a display configured to display the third video signal including the color components representing four colors.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: February 14, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Ryosuke Niizuma, Hironori Shimoda
  • Display apparatus and display method
    Patent number: 11551641
    Abstract: A display apparatus includes a luminance controller that controls a luminance of a displayed video, a gamma controller that applies a gamma curve to a video signal, and a display that displays a video represented by the video signal that the gamma controller has applied the gamma curve to. If the luminance controller causes the display to display the video at a luminance value lower than a predetermined luminance value, the gamma controller applies to the video signal a gamma curve with a lower gradation region raised more than a gamma curve represented by a predetermined constant gamma coefficient.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: January 10, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Ryosuke Niizuma
  • DISPLAY DEVICE AND DISPLAY METHOD
    Publication number: 20220180839
    Abstract: A display device, includes: a first processor configured to increase or decrease values of color components representing three colors and included in a first video signal, in accordance with values corresponding to the values of the color components representing three colors; a second processor configured to convert a second video signal into a third video signal, the second video signal including the color components representing three colors and having the values increased or decreased by the first processor, and the third video signal including color components representing four colors; and a display configured to display the third video signal including the color components representing four colors.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 9, 2022
    Applicants: SHARP KABUSHIKI KAISHA, SHARP KABUSHIKI KAISHA
    Inventors: Ryosuke NIIZUMA, Hironori SHIMODA
  • DISPLAY APPARATUS AND DISPLAY METHOD
    Publication number: 20220130347
    Abstract: A display apparatus includes a luminance controller that controls a luminance of a displayed video, a gamma controller that applies a gamma curve to a video signal, and a display that displays a video represented by the video signal that the gamma controller has applied the gamma curve to. If the luminance controller causes the display to display the video at a luminance value lower than a predetermined luminance value, the gamma controller applies to the video signal a gamma curve with a lower gradation region raised more than a gamma curve represented by a predetermined constant gamma coefficient.
    Type: Application
    Filed: October 20, 2021
    Publication date: April 28, 2022
    Inventor: Ryosuke NIIZUMA