Patents by Inventor Daeun KANG

Daeun KANG 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).

  • Organic light emitting display device and driving method thereof
    Patent number: 9697776
    Abstract: An organic light emitting display device includes a storage area, a degradation compensator, and a display driver. The storage area stores accumulated data for a plurality of pixels. The degradation compensator determines degrees of degradation of the pixels based on the accumulated data, selects a flat up mode or a flat down mode, selects a reference pixel based on the selected mode, generates ratios of a maximum emission brightness of the reference pixel to a maximum emission brightness of the pixels as first coefficients, and generates modulated data for the pixels using the first coefficients and margin ratios. The panel driver transforms the modulated data to data voltages for the pixels, adds the modulated data to the accumulated data, and stores the accumulated data in the storage area.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: July 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bongju Jun, Daeun Kang, Jongsik Park
  • ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF
    Publication number: 20160210897
    Abstract: An organic light emitting display device includes a storage area, a degradation compensator, and a display driver. The storage area stores accumulated data for a plurality of pixels. The degradation compensator determines degrees of degradation of the pixels based on the accumulated data, selects a flat up mode or a flat down mode, selects a reference pixel based on the selected mode, generates ratios of a maximum emission brightness of the reference pixel to a maximum emission brightness of the pixels as first coefficients, and generates modulated data for the pixels using the first coefficients and margin ratios. The panel driver transforms the modulated data to data voltages for the pixels, adds the modulated data to the accumulated data, and stores the accumulated data in the storage area.
    Type: Application
    Filed: October 7, 2015
    Publication date: July 21, 2016
    Inventors: Bongju JUN, Daeun KANG, Jongsik PARK