Patents by Inventor Joon-Shik YOON

Joon-Shik YOON 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).

  • Liquid crystal display device and driving method of the same improving afterimage problem due to image data of black level
    Patent number: 9082365
    Abstract: A liquid crystal display device includes a liquid crystal panel; a gamma voltage supplying unit establishing a gamma voltage corresponding to each gray level according to a predetermined T-V curve; and a data driving unit changing digital image data into analog image data using the gamma voltage and outputting the analog image data to the liquid crystal panel, wherein the gamma voltage corresponding to a black level is configured to have a value within a range of 0 V to 0.005 V.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: July 14, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Joon-Shik Yoon
  • LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD OF THE SAME
    Publication number: 20120098818
    Abstract: A liquid crystal display device includes a liquid crystal panel; a gamma voltage supplying unit establishing a gamma voltage corresponding to each gray level according to a predetermined T-V curve; and a data driving unit changing digital image data into analog image data using the gamma voltage and outputting the analog image data to the liquid crystal panel, wherein the gamma voltage corresponding to a black level is configured to have a value within a range of 0 V to 0.005 V.
    Type: Application
    Filed: October 25, 2011
    Publication date: April 26, 2012
    Inventor: Joon-Shik YOON