Patents by Inventor Dong Kyoung Oh

Dong Kyoung Oh 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).

  • Patent number: 9483991
    Abstract: Disclosed is an organic light emitting display device which includes: a liquid crystal display panel configured to include at least one common electrode bar and a plurality of divisional areas defined along a length direction of the at least one common electrode bar; a common voltage controller configured to divide a single frame into a plurality of intervals corresponding to the plurality of divisional areas and generate a common voltage control signal in each interval; and a common voltage compensator configured to generate a compensated common voltage on the basis of the common voltage control signal in each interval and apply the compensated common voltage to the at least one common electrode bar of the liquid crystal display panel.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: November 1, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Woong Ki Min, Hong Sung Song, Dong Kyoung Oh, Yong Ki Son, Su Hyuk Jang
  • Publication number: 20160284292
    Abstract: Disclosed is an organic light emitting display device which includes: a liquid crystal display panel configured to include at least one common electrode bar and a plurality of divisional areas defined along a length direction of the at least one common electrode bar; a common voltage controller configured to divide a single frame into a plurality of intervals corresponding to the plurality of divisional areas and generate a common voltage control signal in each interval; and a common voltage compensator configured to generate a compensated common voltage on the basis of the common voltage control signal in each interval and apply the compensated common voltage to the at least one common electrode bar of the liquid crystal display panel.
    Type: Application
    Filed: June 9, 2016
    Publication date: September 29, 2016
    Inventors: Woong Ki MIN, Hong Sung SONG, Dong Kyoung OH, Yong Ki SON, Su Hyuk JANG
  • Patent number: 9390671
    Abstract: Disclosed is a liquid crystal display panel configured to include at least one common electrode bar and a plurality of divisional areas defined along a length direction of the at least one common electrode bar; a common voltage controller configured to divide a single frame into a plurality of intervals corresponding to the plurality of divisional areas and generate a common voltage control signal in each interval; and a common voltage compensator configured to generate a compensated common voltage on the basis of the common voltage control signal in each interval and apply the compensated common voltage to the at least one common electrode bar of the liquid crystal display panel.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 12, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Woong Ki Min, Hong Sung Song, Dong Kyoung Oh, Yong Ki Son, Su Hyuk Jang
  • Publication number: 20130314393
    Abstract: Disclosed is an organic light emitting display device which includes: a liquid crystal display panel configured to include at least one common electrode bar and a plurality of divisional areas defined along a length direction of the at least one common electrode bar; a common voltage controller configured to divide a single frame into a plurality of intervals corresponding to the plurality of divisional areas and generate a common voltage control signal in each interval; and a common voltage compensator configured to generate a compensated common voltage on the basis of the common voltage control signal in each interval and apply the compensated common voltage to the at least one common electrode bar of the liquid crystal display panel.
    Type: Application
    Filed: December 21, 2012
    Publication date: November 28, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Woong Ki MIN, Hong Sung SONG, Dong Kyoung OH, Yong Ki SON, Su Hyuk JANG
  • Publication number: 20120306947
    Abstract: An organic light emitting display device includes: a display panel including red, green, blue, and white (RGBW) subpixels; a first data conversion unit configured to convert red, green, and blue (RGB) data signals into RGBW data signals; an average picture level calculation unit configured to calculate an average picture level (APL) for the RGB data signals; a peak luminance controller configured to control luminance of at least one frame by using the APL and a look-up table; and a data compensation unit configured to perform a compensation operation on at least one of the RGB data signals in response to color coordinates of white (W) data signals among the RGBW data signals output from the first data conversion unit being different from a target value.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 6, 2012
    Inventors: Hyungjung KIM, Dong Kyoung Oh, SangHo Yu, HyunKi Lee, MunJun Lee
  • Patent number: 8325129
    Abstract: A liquid crystal display device includes a back light assembly that emits light on a liquid crystal panel; and an inverter that controls brightness of the light emitted from the back light assembly according to a difference between video data of at least three frames that are sequentially inputted to the liquid crystal panel.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: December 4, 2012
    Assignee: LG Display Co., Ltd.
    Inventor: Dong Kyoung Oh
  • Patent number: 8044917
    Abstract: A liquid crystal display device including a liquid crystal panel, a gate driver configured to drive a plurality of gate lines on the panel, a data driver configured to drive a plurality of data lines on the panel in response to the pixel data stream, a timing controller configured to control the gate driver and the data driver, and a single-chip drive voltage generating section configured to supply voltages used by the common electrode on the liquid crystal panel, the gate driver, the data driver, and the timing controller using an external input voltage.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: October 25, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Kyoung Oh, Jin Ha Lee
  • Publication number: 20080042968
    Abstract: A liquid crystal display device includes a back light assembly that emits light on a liquid crystal panel; and an inverter that controls brightness of the light emitted from the back light assembly according to a difference between video data of at least three frames that are sequentially inputted to the liquid crystal panel.
    Type: Application
    Filed: July 24, 2007
    Publication date: February 21, 2008
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventor: Dong Kyoung Oh
  • Publication number: 20080001894
    Abstract: A liquid crystal display device including a liquid crystal panel, a gate driver configured to drive a plurality of gate lines on the panel, a data driver configured to drive a plurality of data lines on the panel in response to the pixel data stream, a timing controller configured to control the gate driver and the data driver, and a single-chip drive voltage generating section configured to supply voltages used by the common electrode on the liquid crystal panel, the gate driver, the data driver, and the timing controller using an external input voltage.
    Type: Application
    Filed: December 20, 2006
    Publication date: January 3, 2008
    Inventors: Dong Kyoung Oh, Jin Ha Lee