Patents by Inventor Gwang-Soo Ahn

Gwang-Soo Ahn 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).

  • Display panel driving apparatus having an off voltage controlled based on a leakage current, method of driving display panel using the same, and display apparatus having the same
    Patent number: 10997938
    Abstract: A display panel driving apparatus includes a data driving part, a data driving part and an off voltage controlling part. The data driving part is configured to output a data signal to a data line of a display panel. The gate driving part is configured to output a gate signal to a gate line of the display panel. The off voltage controlling part is configured to receive a first off voltage and a second off voltage applied to the gate driving part to generate the gate signal, measure a leakage current of the gate driving part, and control the first off voltage based on the leakage current. Thus, display quality of a display apparatus including the gate driving part may be improved.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 4, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hong-Kyu Kim, Po-Yun Park, Gwang-Soo Ahn, Jung-Hwan Cho
  • DISPLAY PANEL DRIVING APPARATUS, METHOD OF DRIVING DISPLAY PANEL USING THE SAME AND DISPLAY APPARATUS HAVING THE SAME
    Publication number: 20190108812
    Abstract: A display panel driving apparatus includes a data driving part, a data driving part and an off voltage controlling part. The data driving part is configured to output a data signal to a data line of a display panel. The gate driving part is configured to output a gate signal to a gate line of the display panel. The off voltage controlling part is configured to receive a first off voltage and a second off voltage applied to the gate driving part to generate the gate signal, measure a leakage current of the gate driving part, and control the first off voltage based on the leakage current. Thus, display quality of a display apparatus including the gate driving part may be improved.
    Type: Application
    Filed: November 20, 2018
    Publication date: April 11, 2019
    Inventors: Hong-Kyu KIM, Po-Yun PARK, Gwang-Soo AHN, Jung-Hwan CHO
  • Display panel driving apparatus, method of driving, and display apparatus with first off voltage controlled based on leakage current
    Patent number: 10163417
    Abstract: A display panel driving apparatus includes a data driving part, a gate driving part and an off voltage controlling part. The data driving part is configured to output a data signal to a data line of a display panel. The gate driving part is configured to output a gate signal to a gate line of the display panel. The off voltage controlling part is configured to receive a first off voltage and a second off voltage applied to the gate driving part to generate the gate signal, measure a leakage current of the gate driving part, and control the first off voltage based on the leakage current. Thus, display quality of a display apparatus including the gate driving part may be enhanced.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: December 25, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hong-Kyu Kim, Po-Yun Park, Gwang-Soo Ahn, Jung-Hwan Cho
  • DISPLAY PANEL DRIVING APPARATUS, METHOD OF DRIVING DISPLAY PANEL USING THE SAME AND DISPLAY APPARATUS HAVING THE SAME
    Publication number: 20170011700
    Abstract: A display panel driving apparatus includes a data driving part, a data driving part and an off voltage controlling part. The data driving part is configured to output a data signal to a data line of a display panel. The gate driving part is configured to output a gate signal to a gate line of the display panel. The off voltage controlling part is configured to receive a first off voltage and a second off voltage applied to the gate driving part to generate the gate signal, measure a leakage current of the gate driving part, and control the first off voltage based on the leakage current. Thus, display quality of a display apparatus including the gate driving part may be improved.
    Type: Application
    Filed: January 20, 2016
    Publication date: January 12, 2017
    Inventors: Hong-Kyu KIM, Po-Yun PARK, Gwang-Soo AHN, Jung-Hwan CHO
  • METHOD OF DRIVING DISPLAY PANEL, DISPLAY PANEL DRIVING APPARATUS AND DISPLAY APPARATUS HAVING THE DISPLAY PANEL DRIVING APPARATUS
    Publication number: 20160140892
    Abstract: A display panel driving apparatus includes a timing controlling part, a data driving part and a gate driving part. The timing controlling part outputs a first line data of an image data, and determines whether the first line data and a second line data next to the first line data are the same. The data driving part outputs a first line data signal based on the first line data to a data line corresponding to a first line, and outputs the first line data signal based on the first line data to a data line corresponding to a second line, when the first line data and the second line data are the same.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 19, 2016
    Inventors: Po-Yun PARK, Myeong-Su Kim, Sil-Yi Bang, Gwang-Soo Ahn, Jung-Hwan Cho