Patents by Inventor Jung Yoon Yi

Jung Yoon Yi 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: 9715848
    Abstract: An organic light emitting display device includes a display panel having a plurality of sub-pixels; a memory configured to accumulate and store data displayed by each sub-pixel; and a panel driver configured to: calculate a degradation compensation gain value for increasing or decreasing a luminance of each sub-pixel based on accumulated data of each sub-pixel stored in the memory, generate modulated data of each sub-pixel by modulating input data to each sub-pixel according to the calculated degradation compensation gain value, convert the modulated data into a data voltage, and accumulate the modulated data from the accumulated data of the corresponding sub-pixel and then store the data in the memory.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: July 25, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Hyung Rae Kim, Seung Chan Byun, Jung Yoon Yi, Kyoung Sik Choi, Dae Hyeon Park, Ui Taek Jeong, Boeon Byeon
  • Patent number: 9224332
    Abstract: An organic light-emitting display device includes: an organic light-emitting panel in which a plurality of pixel regions are arranged, the pixel regions each including a drive transistor configured to drive an organic light emission element and a sensing transistor configured to detect a threshold voltage of the drive transistor during a sensing interval; and a controller configured to compare a pixel number of a low grayscale range and a pixel number of a high grayscale range, which are obtained from an image signal, and adjust the sensing interval according to a compared resultant.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: December 29, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Seung-Chan Byun, Jung-Yoon Yi, Dae-Hyeon Park
  • Publication number: 20140168039
    Abstract: An organic light emitting display device includes a display panel having a plurality of sub-pixels; a memory configured to accumulate and store data displayed by each sub-pixel; and a panel driver configured to: calculate a degradation compensation gain value for increasing or decreasing a luminance of each sub-pixel based on accumulated data of each sub-pixel stored in the memory, generate modulated data of each sub-pixel by modulating input data to each sub-pixel according to the calculated degradation compensation gain value, convert the modulated data into a data voltage, and accumulate the modulated data from the accumulated data of the corresponding sub-pixel and then store the data in the memory.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 19, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyung Rae Kim, Seung Chan Byun, Jung Yoon Yi, Kyoung Sik Choi, Dae Hyeon Park, Ui Taek Jeong, Boeon Byeon
  • Publication number: 20130083087
    Abstract: An organic light-emitting display device includes: an organic light-emitting panel in which a plurality of pixel regions are arranged, the pixel regions each including a drive transistor configured to drive an organic light emission element and a sensing transistor configured to detect a threshold voltage of the drive transistor during a sensing interval; and a controller configured to compare a pixel number of a low grayscale range and a pixel number of a high grayscale range, which are obtained from an image signal, and adjust the sensing interval according to a compared resultant.
    Type: Application
    Filed: August 17, 2012
    Publication date: April 4, 2013
    Inventors: Seung-Chan Byun, Jung-Yoon Yi, Dae-Hyeon Park
  • Patent number: 8232986
    Abstract: Disclosed herein are a light emitting display which can compensate for a threshold voltage of a driving switching element, and a method for driving the same. A light emitting display includes a pixel circuit that outputs a driving current corresponding to a data voltage from a data line using a scan signal, a first driving voltage and a second driving voltage; and a light emitting element that emits light by the driving current from the pixel circuit.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: July 31, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jin Hyoung Kim, Woo Jin Nam, Ho Min Lim, Su Jin Baek, Jung Yoon Yi, Seung Tae Kim
  • Publication number: 20090284519
    Abstract: Disclosed herein are a light emitting display which can compensate for a threshold voltage of a driving switching element, and a method for driving the same. A light emitting display includes a pixel circuit that outputs a driving current corresponding to a data voltage from a data line using a scan signal, a first driving voltage and a second driving voltage; and a light emitting element that emits light by the driving current from the pixel circuit.
    Type: Application
    Filed: December 17, 2008
    Publication date: November 19, 2009
    Inventors: Jin Hyoung Kim, Woo Jin Nam, Ho Min Lim, Su Jin Baek, Jung Yoon Yi, Seung Tae Kim