Patents by Inventor Ji Heon OK

Ji Heon OK 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).

  • Degradation compensation device and organic light emitting display device including the same
    Patent number: 10867551
    Abstract: A degradation compensation device and an organic light emitting display device including the same are provided. The degradation compensation device includes a degradation rate acquisition unit acquiring estimated degradation rates, estimated with respect to a plurality of respective pixels, based on panel usage information, a digital compensation unit performing digital compensation to lower a digital gradation of each pixel, based on a luminance of a pixel having a maximum degradation rate, among the estimated degradation rates, and an analog compensation unit performing analog compensation to increase luminance of the plurality of pixels by changing an analog voltage supplied to a panel, after performing the digital compensation.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: December 15, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Heon Ok, Yong Hoon Yu, Joo Hyuk Yum, Jae Youl Lee, Byoung Yoon Jang
  • DEGRADATION COMPENSATION DEVICE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20200058249
    Abstract: A degradation compensation device and an organic light emitting display device including the same are provided. The degradation compensation device includes a degradation rate acquisition unit acquiring estimated degradation rates, estimated with respect to a plurality of respective pixels, based on panel usage information, a digital compensation unit performing digital compensation to lower a digital gradation of each pixel, based on a luminance of a pixel having a maximum degradation rate, among the estimated degradation rates, and an analog compensation unit performing analog compensation to increase luminance of the plurality of pixels by changing an analog voltage supplied to a panel, after performing the digital compensation.
    Type: Application
    Filed: February 26, 2019
    Publication date: February 20, 2020
    Inventors: Ji Heon OK, Yong Hoon YU, Joo Hyuk YUM, Jae Youl LEE, Byoung Yoon JANG