Patents by Inventor Tong-Ill KWAK

Tong-Ill KWAK 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: 10460686
    Abstract: Embodiments relate to a gate driving device including a reference voltage generator for generating a kickback compensating reference voltage, the kickback compensating reference voltage decreasing during one frame section based on a horizontal synchronization signal, and a gate output voltage generator for decreasing a kickback compensating voltage of a gate output voltage during one frame section based on the kickback compensating reference voltage.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: October 29, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tong Ill Kwak, Kl Hyun Pyun
  • Patent number: 10332472
    Abstract: A display device includes a display panel including a plurality of pixels, a power supply which supplies a common voltage and a distribution voltage to the display panel, and a timing controller which outputs a selection signal corresponding to image data input from the outside where the power supply supplies the distribution voltage having a value corresponding to the selection signal to the display panel.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: June 25, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Jin Shin, Tong Ill Kwak, Seung Hwan Moon
  • Patent number: 10049630
    Abstract: An image correcting unit including: a data converting unit which receives image data, and generates display data by converting respective grayscale values which are included in the image data to high pixel data and low pixel data; and a white pixel detecting unit which detects image data lines which include not less than a first number of white grayscale values from the image data, and outputs a conversion signal when not less than a second number of the detected image data lines are successively arranged, wherein upon receiving the conversion signal from the white pixel detecting unit, the data converting unit converts the white grayscale values which are included in the successively arranged image data lines to first high pixel data and first low pixel data, wherein the first high pixel data and the first low pixel data have a different value from each other.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: August 14, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tong Ill Kwak, Woon Yong Lim, Bong Kyun Jo, Ki Hyun Pyun, Young Uk Hwang
  • Patent number: 9715858
    Abstract: A display apparatus includes a display panel including a plurality of data lines arranged in a first direction, where the data line extends substantially in a second direction, and a plurality of pixels electrically connected to the data lines, and a data driver configured to output a first data voltage and a second data voltage to the data lines and configured to control the number of the data lines which receives the first data voltage and the number of the data lines which receive the second data voltage, where the first data voltage has a positive polarity during a first frame and a negative polarity during a second frame, and the second data voltage has the negative polarity during the first frame and the positive polarity during the second frame.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: July 25, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tong-Ill Kwak, Ji-Hye Kwon, Min-Su Son, Yong-Oh Eom, Woon-Yong Lim, Ki-Hyun Pyun
  • Patent number: 9672786
    Abstract: A method of driving a display panel includes: selectively providing a resistance using resistor parts in response to address signals, where the resistor parts have resistances, respectively; and outputting common voltages to the display panel based on the selectively provided resistance.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: June 6, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki-Hyun Pyun, Tong-Ill Kwak, Jong-Hyun Lee, Woon-Yong Lim, Eui-Myeong Cho
  • Publication number: 20170103726
    Abstract: A display device includes a display panel including a plurality of pixels, a power supply which supplies a common voltage and a distribution voltage to the display panel, and a timing controller which outputs a selection signal corresponding to image data input from the outside where the power supply supplies the distribution voltage having a value corresponding to the selection signal to the display panel.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 13, 2017
    Inventors: Yong Jin SHIN, Tong Ill KWAK, Seung Hwan MOON
  • Patent number: 9601077
    Abstract: A circuit includes a reference signal generating part configured to generate a plurality of reference signals having levels different from each other, a comparing part configured to compare a ripple signal with the reference signals to determine a level of the ripple signal, a compensating signal generating part configured to generate a compensation ripple signal corresponding to the level of the ripple signal, where the compensation ripple signal has a phase opposite to the ripple signal, and a push-pull circuit configured to stabilize the compensation ripple signal.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: March 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Woon-Yong Lim, Tong-Ill Kwak, Min-Ho Park, Yong-Jin Shin, Tae-Gwang Jung, Bong-Kyun Jo, Ki-Hyun Pyun
  • Publication number: 20170047040
    Abstract: A method of driving a display panel includes: selectively providing a resistance using resistor parts in response to address signals, where the resistor parts have resistances, respectively; and outputting common voltages to the display panel based on the selectively provided resistance.
    Type: Application
    Filed: October 31, 2016
    Publication date: February 16, 2017
    Inventors: Ki-Hyun PYUN, Tong-Ill KWAK, Jong-Hyun LEE, Woon-Yong LIM, Eui-Myeong CHO
  • Publication number: 20160365043
    Abstract: An image correcting unit including: a data converting unit which receives image data, and generates display data by converting respective grayscale values which are included in the image data to high pixel data and low pixel data; and a white pixel detecting unit which detects image data lines which include not less than a first number of white grayscale values from the image data, and outputs a conversion signal when not less than a second number of the detected image data lines are successively arranged, wherein upon receiving the conversion signal from the white pixel detecting unit, the data converting unit converts the white grayscale values which are included in the successively arranged image data lines to first high pixel data and first low pixel data, wherein the first high pixel data and the first low pixel data have a different value from each other.
    Type: Application
    Filed: January 26, 2016
    Publication date: December 15, 2016
    Inventors: Tong Ill KWAK, Woon Yong Lim, Bong Kyun Jo, Ki Hyun Pyun, Young Uk Hwang
  • Patent number: 9514701
    Abstract: A method of driving a display panel includes: selectively providing a resistance using resistor parts in response to address signals, where the resistor parts have resistances, respectively; and outputting common voltages to the display panel based on the selectively provided resistance.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: December 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki-Hyun Pyun, Tong-Ill Kwak, Jong-Hyun Lee, Woon-Yong Lim, Eui-Myeong Cho
  • Publication number: 20160343341
    Abstract: Embodiments relate to a gate driving device including a reference voltage generator for generating a kickback compensating reference voltage, the kickback compensating reference voltage decreasing during one frame section based on a horizontal synchronization signal, and a gate output voltage generator for decreasing a kickback compensating voltage of a gate output voltage during one frame section based on the kickback compensating reference voltage.
    Type: Application
    Filed: April 13, 2016
    Publication date: November 24, 2016
    Inventors: TONG ILL KWAK, Kl HYUN PYUN
  • Publication number: 20150145844
    Abstract: A display apparatus includes a display panel including a plurality of data lines arranged in a first direction, where the data line extends substantially in a second direction, and a plurality of pixels electrically connected to the data lines, and a data driver configured to output a first data voltage and a second data voltage to the data lines and configured to control the number of the data lines which receives the first data voltage and the number of the data lines which receive the second data voltage, where the first data voltage has a positive polarity during a first frame and a negative polarity during a second frame, and the second data voltage has the negative polarity during the first frame and the positive polarity during the second frame.
    Type: Application
    Filed: July 2, 2014
    Publication date: May 28, 2015
    Inventors: Tong-ILL KWAK, Ji-Hye KWON, Min-Su SON, Yong-Oh EOM, Woon-Yong LIM, Ki-Hyun PYUN
  • Publication number: 20150054809
    Abstract: A circuit includes a reference signal generating part configured to generate a plurality of reference signals having levels different from each other, a comparing part configured to compare a ripple signal with the reference signals to determine a level of the ripple signal, a compensating signal generating part configured to generate a compensation ripple signal corresponding to the level of the ripple signal, where the compensation ripple signal has a phase opposite to the ripple signal, and a push-pull circuit configured to stabilize the compensation ripple signal.
    Type: Application
    Filed: January 28, 2014
    Publication date: February 26, 2015
    Applicant: Samsung Display Co., LTD.
    Inventors: Woon-Yong LIM, Tong-Ill KWAK, Min-Ho PARK, Yong-Jin SHIN, Tae-Gwang JUNG, Bong-Kyun JO, Ki-Hyun PYUN
  • Publication number: 20150015561
    Abstract: A method of driving a display panel includes: selectively providing a resistance using resistor parts in response to address signals, where the resistor parts have resistances, respectively; and outputting common voltages to the display panel based on the selectively provided resistance.
    Type: Application
    Filed: January 14, 2014
    Publication date: January 15, 2015
    Applicant: Samsung Display Co., LTD.
    Inventors: Ki-Hyun PYUN, Tong-Ill KWAK, Jong-Hyun LEE, Woon-Yong LIM, Eui-Myeong CHO