Patents by Inventor Chanwook Shim

Chanwook Shim 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: 11037517
    Abstract: A display device to display an image during frame intervals, and to display a blank image during a blank interval defined between the frame intervals, includes: a gate driving circuit including a plurality of stages, an ith stage (i is an integer greater than or equal to 2) from among the plurality of stages including a clock terminal to receive a clock signal, wherein the clock signal swings between a first clock voltage and a second clock voltage smaller than the first clock voltage during a normal interval corresponding to each of the frame intervals, and the clock signal is changed to a voltage lower than the second clock voltage during a stabilization interval corresponding to the blank interval.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: June 15, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junghwan Hwang, Chanwook Shim, Youngchul Jo
  • Publication number: 20200066224
    Abstract: A display device to display an image during frame intervals, and to display a blank image during a blank interval defined between the frame intervals, includes: a gate driving circuit including a plurality of stages, an ith stage (i is an integer greater than or equal to 2) from among the plurality of stages including a clock terminal to receive a clock signal, wherein the clock signal swings between a first clock voltage and a second clock voltage smaller than the first clock voltage during a normal interval corresponding to each of the frame intervals, and the clock signal is changed to a voltage lower than the second clock voltage during a stabilization interval corresponding to the blank interval.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 27, 2020
    Inventors: Junghwan Hwang, Chanwook Shim, Youngchul Jo
  • Patent number: 10529292
    Abstract: A method of driving a display panel and a display apparatus having a plurality of gate lines and a plurality of data lines that cross the gate lines. The method includes determining whether to compensate a gate signal or not according to input image data displayed on a display panel, transmitting a first gate signal having a first falling waveform to a first gate line and a second gate signal having a second falling waveform different from the first falling waveform to the second gate line. A first gate clock signal may be adjusted when the gate signal is determined to be compensated. A timing controller may compensate the first gate signal when an artifact would be displayed based on a variation in brightness when a first subpixel row to which the first gate signal is applied is brighter than a second subpixel row for a same target luminance.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: January 7, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Chanwook Shim
  • Patent number: 10460691
    Abstract: A display device to display an image during frame intervals, and to display a blank image during a blank interval defined between the frame intervals, includes: a gate driving circuit including a plurality of stages, an ith stage (i is an integer greater than or equal to 2) from among the plurality of stages including a clock terminal to receive a clock signal, wherein the clock signal swings between a first clock voltage and a second clock voltage smaller than the first clock voltage during a normal interval corresponding to each of the frame intervals, and the clock signal is changed to a voltage lower than the second clock voltage during a stabilization interval corresponding to the blank interval.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: October 29, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junghwan Hwang, Chanwook Shim, Youngchul Jo
  • Publication number: 20170316748
    Abstract: A method of driving a display panel and a display apparatus having a plurality of gate lines and a plurality of data lines that cross the gate lines. The method includes determining whether to compensate a gate signal or not according to input image data displayed on a display panel, transmitting a first gate signal having a first falling waveform to a first gate line and a second gate signal having a second falling waveform different from the first falling waveform to the second gate line. A first gate clock signal may be adjusted when the gate signal is determined to be compensated. A timing controller may compensate the first gate signal when an artifact would be displayed based on a variation in brightness when a first subpixel row to which the first gate signal is applied is brighter than a second subpixel row for a same target luminance.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 2, 2017
    Inventor: CHANWOOK SHIM
  • Publication number: 20170084245
    Abstract: A display device to display an image during frame intervals, and to display a blank image during a blank interval defined between the frame intervals, includes: a gate driving circuit including a plurality of stages, an ith stage (i is an integer greater than or equal to 2) from among the plurality of stages including a clock terminal to receive a clock signal, wherein the clock signal swings between a first clock voltage and a second clock voltage smaller than the first clock voltage during a normal interval corresponding to each of the frame intervals, and the clock signal is changed to a voltage lower than the second clock voltage during a stabilization interval corresponding to the blank interval.
    Type: Application
    Filed: May 23, 2016
    Publication date: March 23, 2017
    Inventors: Junghwan Hwang, Chanwook Shim, Youngchul Jo