Patents by Inventor Jong-Hak HWANG

Jong-Hak HWANG 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: 10396105
    Abstract: A display substrate includes a base substrate comprising a plurality of sub-pixels, a first switching element disposed on the base substrate and electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction, a color filter layer disposed on the switching element and comprising a red color filter, a green color filter, a blue color filter and a white color filter alternately disposed on the plurality of sub-pixels, respectively, a column spacer disposed on the color filter and comprising the same material as that of the white color filter, an insulation layer disposed on the color filter and the column spacer and a pixel electrode disposed on the insulation layer.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: August 27, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyoung-Cheol Lee, Hyung-June Kim, Wan-Soon Im, Tae-Kyung Yim, Joon-Gun Chong, Jong-Hak Hwang
  • Patent number: 9905187
    Abstract: A method of driving a display panel comprises applying a first set of pixel voltages including a positive pixel voltage (+) and a negative pixel voltage (?) to subpixels of a display panel in an N-th frame, applying a second set of pixel voltages having polarities opposite to polarities of the first set of the pixel voltages to the subpixels of the display panel in an (N+1)-th frame and applying compensating values which are varied for respective data lines of the display panel. N is a natural number. A corresponding display panel is also disclosed.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: February 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Hak Hwang, Wan-Soon Im, Hyung-June Kim
  • Publication number: 20170345848
    Abstract: A display substrate includes a base substrate comprising a plurality of sub-pixels, a first switching element disposed on the base substrate and electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction, a color filter layer disposed on the switching element and comprising a red color filter, a green color filter, a blue color filter and a white color filter alternately disposed on the plurality of sub-pixels, respectively, a column spacer disposed on the color filter and comprising the same material as that of the white color filter, an insulation layer disposed on the color filter and the column spacer and a pixel electrode disposed on the insulation layer.
    Type: Application
    Filed: August 17, 2017
    Publication date: November 30, 2017
    Inventors: Hyoung-Cheol LEE, Hyung-June KIM, Wan-Soon IM, Tae-Kyung YIM, Joon-Gun CHONG, Jong-Hak HWANG
  • Patent number: 9768206
    Abstract: A display substrate includes a base substrate comprising a plurality of sub-pixels, a first switching element disposed on the base substrate and electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction, a color filter layer disposed on the switching element and comprising a red color filter, a green color filter, a blue color filter and a white color filter alternately disposed on the plurality of sub-pixels, respectively, a column spacer disposed on the color filter and comprising the same material as that of the white color filter, an insulation layer disposed on the color filter and the column spacer and a pixel electrode disposed on the insulation layer.
    Type: Grant
    Filed: January 3, 2016
    Date of Patent: September 19, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyoung-Cheol Lee, Hyung-June Kim, Wan-Soon Im, Tae-Kyung Yim, Joon-Gun Chong, Jong-Hak Hwang
  • Publication number: 20160299398
    Abstract: A display substrate includes a base substrate comprising a plurality of sub-pixels, a first switching element disposed on the base substrate and electrically connected to a gate line extending in a first direction and a data line extending in a second direction crossing the first direction, a color filter layer disposed on the switching element and comprising a red color filter, a green color filter, a blue color filter and a white color filter alternately disposed on the plurality of sub-pixels, respectively, a column spacer disposed on the color filter and comprising the same material as that of the white color filter, an insulation layer disposed on the color filter and the column spacer and a pixel electrode disposed on the insulation layer.
    Type: Application
    Filed: January 3, 2016
    Publication date: October 13, 2016
    Inventors: Hyoung-Cheol LEE, Hyung-June KIM, Wan-Soon IM, Tae-Kyung YIM, Joon-Gun CHONG, Jong-Hak HWANG
  • Publication number: 20150364104
    Abstract: A method of driving a display panel comprises applying a first set of pixel voltages including a positive pixel voltage (+) and a negative pixel voltage (?) to subpixels of a display panel in an N-th frame, applying a second set of pixel voltages having polarities opposite to polarities of the first set of the pixel voltages to the subpixels of the display panel in an (N+1)-th frame and applying compensating values which are varied for respective data lines of the display panel. N is a natural number. A corresponding display panel is also disclosed.
    Type: Application
    Filed: November 12, 2014
    Publication date: December 17, 2015
    Inventors: Jong-Hak HWANG, Wan-Soon IM, Hyung-June KIM
  • Patent number: 9208713
    Abstract: A pixels group includes first to fourth pixels disposed in a 2*2 matrix. Each of the first to fourth pixels includes first to third sub-pixels. Each of the first sub-pixels of first to fourth pixels has a first color. The second sub-pixel of first pixel and the second sub-pixel of fourth pixel have a second color. The third sub-pixel of first pixel and the third sub-pixel of fourth pixel have a third color. The second sub-pixel of second pixel and the second sub-pixel of third pixel have a fourth color. The third sub-pixel of second pixel and the third sub-pixel of third pixel has a fifth color.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 8, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Jae Park, Se-Ah Kwon, Ki-Soo Park, Ik-Soo Lee, Jong-Hak Hwang
  • Publication number: 20150187287
    Abstract: A field sequential display apparatus includes a backlight including a plurality of light sources which emits light of different colors, and a grayscale representation unit including a plurality of sub-pixels, in which the plurality of light sources includes a first light source which emits light of a first color, the plurality of sub-pixels includes a first type sub-pixel covered with a color filter of a second color, which is different from the first color, and the first type sub-pixel displays a third color, which is different from the first and second colors, using the light emitted from the first light source and passed through the color filter of the second color.
    Type: Application
    Filed: May 29, 2014
    Publication date: July 2, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Yu-Kwan KIM, Se-Ah KWON, Ki-Soo PARK, Ik-Soo LEE, Jong-Hak HWANG
  • Publication number: 20140055330
    Abstract: A pixels group includes first to fourth pixels disposed in a 2*2 matrix. Each of the first to fourth pixels includes first to third sub-pixels. Each of the first sub-pixels of first to fourth pixels has a first color. The second sub-pixel of first pixel and the second sub-pixel of fourth pixel have a second color. The third sub-pixel of first pixel and the third sub-pixel of fourth pixel have a third color. The second sub-pixel of second pixel and the second sub-pixel of third pixel have a fourth color. The third sub-pixel of second pixel and the third sub-pixel of third pixel has a fifth color.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 27, 2014
    Inventors: Sung-Jae PARK, Se-Ah KWON, Ki-Soo PARK, Ik-Soo LEE, Jong-Hak HWANG