Patents by Inventor Changnoh YOON

Changnoh 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).

  • Publication number: 20210074225
    Abstract: An organic light emitting display device includes: a display panel including a plurality of pixel rows each including first pixel groups alternating with second pixel groups; a gate driver configured to provide a first group gate signal to the first pixel groups, and to provide a second group gate signal to the second pixel groups; a data driver configured to output data voltages to a plurality of output line groups; and a connection controller configured to connect the output line groups to a first data line group in response to a first connection control signal, and to connect the output line groups to a second data line group in response to a second connection control signal.
    Type: Application
    Filed: November 16, 2020
    Publication date: March 11, 2021
    Inventors: Changnoh YOON, Jin-Wook YANG
  • Publication number: 20210027713
    Abstract: A display apparatus includes: a display panel comprising a gate line, a data line and a plurality of display areas; a gate driver configured to output a gate signal to the gate line; a data driver configured to output a data voltage to the data line; a time sensor configured to sense an operation time of the display panel; and a voltage controller configured to adjust a back gate voltage according to the operation time sensed by the time sensor and the display areas.
    Type: Application
    Filed: July 17, 2020
    Publication date: January 28, 2021
    Inventors: Seungjae LEE, Soon-Dong KIM, Changnoh YOON, Jun Heyung JUNG
  • Patent number: 10867560
    Abstract: An organic light emitting display device includes: a display panel including a plurality of pixel rows each including first pixel groups alternating with second pixel groups; a gate driver configured to provide a first group gate signal to the first pixel groups, and to provide a second group gate signal to the second pixel groups; a data driver configured to output data voltages to a plurality of output line groups; and a connection controller configured to connect the output line groups to a first data line group in response to a first connection control signal, and to connect the output line groups to a second data line group in response to a second connection control signal.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: December 15, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changnoh Yoon, Jin-Wook Yang
  • Publication number: 20200365090
    Abstract: A display device includes a display panel including a plurality of pixels, a gray group data generator configured to receive current line data for pixels in a current row, and to generate current row gray group data based on the current line data, a horizontal crosstalk determiner configured to determine whether horizontal crosstalk occurs in the current row, a horizontal crosstalk compensator configured to compare the current row gray group data with adjacent row gray group data when the horizontal crosstalk is determined to occur in the current row, and to selectively adjust a plurality of gamma reference voltages according to a result of the comparison between the current row gray group data and the adjacent row gray group data, and a data driver configured to generate and provide data voltages corresponding to the current line data based on the selectively adjusted plurality of gamma reference voltages.
    Type: Application
    Filed: January 17, 2020
    Publication date: November 19, 2020
    Inventors: Changnoh YOON, Soon-Dong KIM, Jin-Wook YANG
  • Publication number: 20200365085
    Abstract: A display device includes a display unit including a first pixel, a second pixel disposed adjacent to the first pixel in a first direction, a third pixel disposed adjacent to the first pixel in a second direction crossing the first direction, and a fourth pixel disposed adjacent to the third pixel in the first direction. Each of the first to fourth pixels includes a first sub-pixel and a second sub-pixel. The display device further includes a data driver that outputs a plurality of data voltages, a selective output unit that outputs the data voltages to the first to fourth pixels in a different order for each of a plurality of frames, and a scan driver that outputs a first scan signal to the first and second pixels and outputs a second scan signal, which is delayed from the first scan signal, to the third and fourth pixels.
    Type: Application
    Filed: February 20, 2020
    Publication date: November 19, 2020
    Inventors: Jin-Wook YANG, Soon-Dong KIM, Changnoh YOON
  • Publication number: 20190164502
    Abstract: An organic light emitting display device includes: a display panel including a plurality of pixel rows each including first pixel groups alternating with second pixel groups; a gate driver configured to provide a first group gate signal to the first pixel groups, and to provide a second group gate signal to the second pixel groups; a data driver configured to output data voltages to a plurality of output line groups; and a connection controller configured to connect the output line groups to a first data line group in response to a first connection control signal, and to connect the output line groups to a second data line group in response to a second connection control signal.
    Type: Application
    Filed: October 23, 2018
    Publication date: May 30, 2019
    Inventors: Changnoh YOON, Jin-Wook YANG