Patents by Inventor Wan-Sik LIM

Wan-Sik LIM 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 device, display panel, driving method, and gate driver circuit
    Patent number: 10699655
    Abstract: A display device, a display panel, a driving method, and a gate driver circuit. Threshold voltage sampling times of driving transistors are changed by varying pulse widths of gate clock signals depending on horizontal lines. Luminance uniformity of the display panel is improved, even in the case in which horizontal line-specific driving voltages have different voltage drops.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: June 30, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Bonghwan Kim, Wan Sik Lim
  • DISPLAY DEVICE, DISPLAY PANEL, DRIVING METHOD, AND GATE DRIVER CIRCUIT
    Publication number: 20180190224
    Abstract: A display device, a display panel, a driving method, and a gate driver circuit. Threshold voltage sampling times of driving transistors are changed by varying pulse widths of gate clock signals depending on horizontal lines. Luminance uniformity of the display panel is improved, even in the case in which horizontal line-specific driving voltages have different voltage drops.
    Type: Application
    Filed: December 12, 2017
    Publication date: July 5, 2018
    Inventors: Bonghwan KIM, Wan Sik LIM
  • Optical sensing frame and display device therewith
    Patent number: 9234789
    Abstract: The present invention relates to display devices, and more particularly to an optical sensing frame in which an infrared sensor module is fastened to a case top with a bracket to secure an assembly margin and prevent the infrared sensor module from mismatching with a liquid crystal display module by relative movement; and a display device therewith, the optical sensing frame includes a case top having a frame shaped upper side, and sides bent and extended from four sides of the upper side perpendicular thereto, first to third brackets fastened to an inside of the upper side of the case top at three corners thereof respectively, and an infrared sensor module placed in each of the first to third brackets.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: January 12, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Wan-Sik Lim, Jang-Hwan Kim, Jae-Hwan Kim, Jin-Hyuk Jang, Woo-Nam Tak
  • OPTICAL SENSING FRAME AND DISPLAY DEVICE THEREWITH
    Publication number: 20120092647
    Abstract: The present invention relates to display devices, and more particularly to an optical sensing frame in which an infrared sensor module is fastened to a case top with a bracket to secure an assembly margin and prevent the infrared sensor module from mismatching with a liquid crystal display module by relative movement; and a display device therewith, the optical sensing frame includes a case top having a frame shaped upper side, and sides bent and extended from four sides of the upper side perpendicular thereto, first to third brackets fastened to an inside of the upper side of the case top at three corners thereof respectively, and an infrared sensor module placed in each of the first to third brackets.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 19, 2012
    Inventors: Wan-Sik LIM, Jang-Hwan Kim, Jae-Hwan Kim, Jin-Hyuk Jang, Woo-Nam Tak