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: 11221509
    Abstract: One or more embodiments of the present invention are directed to a liquid crystal display including: a first substrate and a second substrate facing each other; a first color pixel area, a second color pixel area, a third color pixel area, and a white pixel area on any one of the first substrate and the second substrate; and a liquid crystal layer between the first substrate and the second substrate. A first color filter is disposed in each of the first color pixel area and the white pixel area, and each of the first, second, third, and white pixel areas includes a plurality of domains, each two adjacent domains having a boundary between them, and the first color filter is disposed at at least one of the boundaries between the domains in the white pixel area.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: January 11, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok Kyu Yoon, Eun Ju Kim, Hyung June Kim, Byoung Sun Na, Sung Jae Park, Yun Seok Lee, Ik Soo Lee, Jun Pyo Lee, Wan-Soon Im, Jong Hak Hwang
  • Publication number: 20210028362
    Abstract: An embodiment of the present inventive concept provides a display device including: a mother substrate on which a plurality of display modules are located; and a mother film located on a rear surface of the mother substrate, wherein the mother film may include a first layer, and a second layer disposed between the first layer and the mother substrate, the second layer has a thickness of from about 40 ?m to about 60 ?m, and a thickness of the first layer may be greater than that of the second layer.
    Type: Application
    Filed: May 11, 2020
    Publication date: January 28, 2021
    Inventors: Kwang Nyun KIM, Ki Chul BAE, Jong Gil RYU, Seung Min LEE, Chang Yong LEE, Chul Kyu CHOI, In HUH, Jong Hak HWANG
  • Publication number: 20200271988
    Abstract: One or more embodiments of the present invention are directed to a liquid crystal display including: a first substrate and a second substrate facing each other; a first color pixel area, a second color pixel area, a third color pixel area, and a white pixel area on any one of the first substrate and the second substrate; and a liquid crystal layer between the first substrate and the second substrate. A first color filter is disposed in each of the first color pixel area and the white pixel area, and each of the first, second, third, and white pixel areas includes a plurality of domains, each two adjacent domains having a boundary between them, and the first color filter is disposed at at least one of the boundaries between the domains in the white pixel area.
    Type: Application
    Filed: May 14, 2020
    Publication date: August 27, 2020
    Inventors: Seok Kyu Yoon, Eun Ju Kim, Hyung June Kim, Byoung Sun Na, Sung Jae Park, Yun Seok Lee, Ik Soo Lee, Jun Pyo Lee, Wan-Soon Im, Jong Hak Hwang
  • Patent number: 10698250
    Abstract: One or more embodiments of the present invention are directed to a liquid crystal display including: a first substrate and a second substrate facing each other; a first color pixel area, a second color pixel area, a third color pixel area, and a white pixel area on any one of the first substrate and the second substrate; and a liquid crystal layer between the first substrate and the second substrate. A first color filter is disposed in each of the first color pixel area and the white pixel area, and each of the first, second, third, and white pixel areas includes a plurality of domains, each two adjacent domains having a boundary between them, and the first color filter is disposed at at least one of the boundaries between the domains in the white pixel area.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: June 30, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok Kyu Yoon, Eun Ju Kim, Hyung June Kim, Byoung Sun Na, Sung Jae Park, Yun Seok Lee, Ik Soo Lee, Jun Pyo Lee, Wan-Soon Im, Jong Hak Hwang
  • 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: 10330983
    Abstract: A method for manufacturing a liquid crystal display, and the display formed thereby, the method including forming a first display panel including a thin film transistor and a pixel electrode connected to the thin film transistor, the thin film transistor including an auxiliary electrode, a semiconductor layer disposed on the auxiliary electrode, and a gate electrode disposed on the semiconductor layer, forming a second display panel including a common electrode, forming a liquid crystal layer including a plurality of liquid crystal molecules on the first display panel or the second display panel, bonding the first display panel and the second display panel, applying different voltages to the pixel electrode and the common electrode, and irradiating ultraviolet rays in the liquid crystal layer, to initially align the liquid crystal molecules.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: June 25, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang-II Kim, Keun Woo Park, Jong Hak Hwang
  • Publication number: 20180348571
    Abstract: One or more embodiments of the present invention are directed to a liquid crystal display including: a first substrate and a second substrate facing each other; a first color pixel area, a second color pixel area, a third color pixel area, and a white pixel area on any one of the first substrate and the second substrate; and a liquid crystal layer between the first substrate and the second substrate. A first color filter is disposed in each of the first color pixel area and the white pixel area, and each of the first, second, third, and white pixel areas includes a plurality of domains, each two adjacent domains having a boundary between them, and the first color filter is disposed at at least one of the boundaries between the domains in the white pixel area.
    Type: Application
    Filed: August 7, 2018
    Publication date: December 6, 2018
    Inventors: Seok Kyu Yoon, Eun Ju Kim, Hyung June Kim, Byoung Sun Na, Sung Jae Park, Yun Seok Lee, Ik Soo Lee, Jun Pyo Lee, Wan-Soon Im, Jong Hak Hwang
  • Patent number: 10042199
    Abstract: One or more embodiments of the present invention are directed to a liquid crystal display including: a first substrate and a second substrate facing each other; a first color pixel area, a second color pixel area, a third color pixel area, and a white pixel area on any one of the first substrate and the second substrate; and a liquid crystal layer between the first substrate and the second substrate. A first color filter is disposed in each of the first color pixel area and the white pixel area, and each of the first, second, third, and white pixel areas includes a plurality of domains, each two adjacent domains having a boundary between them, and the first color filter is disposed at at least one of the boundaries between the domains in the white pixel area.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: August 7, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok Kyu Yoon, Eun Ju Kim, Hyung June Kim, Byoung Sun Na, Sung Jae Park, Yun Seok Lee, Ik Soo Lee, Jun Pyo Lee, Wan-Soon Im, Jong Hak Hwang
  • Patent number: 9964795
    Abstract: A curved display device includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, and a first color pixel area, a second color pixel area, a third color pixel area, and a fourth color pixel area disposed on the first substrate or the second substrate, in which the first substrate and the second substrate each includes a center portion and an edge portion surrounding the center portion, the first, second, and third color pixel areas include a red filter, a green filter, and a blue filter, respectively, the fourth color pixel area include a white filter, and the fourth color pixel area is disposed at the edge portion of the first or second substrate, and is smaller than each of the first, second, and third color pixel areas.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: May 8, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Wan-Soon Im, Joong Gun Chong, Jong Hak Hwang
  • Patent number: 9933651
    Abstract: A liquid crystal display including: a first display panel defining a plurality of pixel areas; a second display panel facing the first display panel; a liquid crystal layer interposed between the first display panel and the second display panel; and a plurality of color filters disposed in the respective pixel areas, wherein four different color filters are respectively disposed in four adjacent pixel areas, and each of the four color filters includes first and second protrusions formed at first and second edges of the corresponding pixel area and first and second chamfered portions at third and fourth edges thereof.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: April 3, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Soo Park, Wan-Soon Im, Hyung June Kim, 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: 9805678
    Abstract: An exemplary embodiment of the present invention provides a display device including red pixels, blue pixels, green pixels, and white pixels, a plurality of gate lines, and a plurality of data lines, wherein the red pixels, the blue pixels, and the green pixels are disposed to longitudinally extend in a vertical direction, and the white pixels are disposed to longitudinally extend in a horizontal direction below or above the red pixels, the blue pixels, and the green pixels.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: October 31, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Wan-Soon Im, Hyoung Cheol Lee, Tae Kyung Yim, Jong Hak Hwang
  • Patent number: 9798182
    Abstract: A liquid crystal display (LCD) device, including a lower polarizing plate configured to have a transmission axis in a first direction, a liquid crystal layer on the lower polarizing plate, an upper polarizing plate on the liquid crystal layer, the upper polarizing plate including a first polarizing plate and a second polarizing plate, the first polarizing plate having a transmission axis in the first direction, the second polarizing plate having a transmission axis in a second direction perpendicular to the first direction, and color filters including a white filter and a colored filter, the white filter overlapping with the first polarizing plate, and the color filter overlapping with the second polarizing plate.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: October 24, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Wan Soon Im, Nam Seok Roh, Young Goo Song, Hyoung Cheol Lee, Yong Woo Hyung, Hyung June Kim, Joong Gun Chong, Jong Hak Hwang
  • Patent number: 9792880
    Abstract: A display device according to an exemplary embodiment includes: a plurality of color filters positioned at a plurality of color pixels and representing different colors; and a transparent layer positioned at a white pixel and including a green colorant and a blue colorant, wherein white color coordinates represented by the white pixel are substantially equal to white color coordinates represented together by the plurality of color pixels.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: October 17, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Wan Soon Im, Yun Seok Lee, Jong Hak Hwang
  • Publication number: 20170293173
    Abstract: A method for manufacturing a liquid crystal display, and the display formed thereby, the method including forming a first display panel including a thin film transistor and a pixel electrode connected to the thin film transistor, the thin film transistor including an auxiliary electrode, a semiconductor layer disposed on the auxiliary electrode, and a gate electrode disposed on the semiconductor layer, forming a second display panel including a common electrode, forming a liquid crystal layer including a plurality of liquid crystal molecules on the first display panel or the second display panel, bonding the first display panel and the second display panel, applying different voltages to the pixel electrode and the common electrode, and irradiating ultraviolet rays in the liquid crystal layer, to initially align the liquid crystal molecules.
    Type: Application
    Filed: March 13, 2017
    Publication date: October 12, 2017
    Inventors: Jang-II KIM, Keun Woo PARK, 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: 20170017114
    Abstract: A display device may include a lighting unit, a transparent substrate, a liquid crystal layer, a polarizer, and a plurality of fillers. The liquid crystal layer may be positioned between the lighting unit and the transparent substrate. The polarizer may be positioned between the liquid crystal layer and the transparent substrate and may include a plurality of conductive members. The conductive members may be electrically conductive, opaque, and spaced from one another. The fillers may include at least one of a plurality of phase difference members formed of a polymer material, a plurality of passivation members formed of an electrically insulating material, and a plurality of gas members formed of a gaseous material. The fillers and the conductive members may be alternately arranged in a direction parallel to the transparent substrate.
    Type: Application
    Filed: March 7, 2016
    Publication date: January 19, 2017
    Inventors: Nak Cho CHOI, Jong Hak HWANG, Su Wan WOO, Yeo Geon YOON, Je Hong CHOI
  • 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: 20160223857
    Abstract: A curved display device includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, and a first color pixel area, a second color pixel area, a third color pixel area, and a fourth color pixel area disposed on the first substrate or the second substrate, in which the first substrate and the second substrate each includes a center portion and an edge portion surrounding the center portion, the first, second, and third color pixel areas include a red filter, a green filter, and a blue filter, respectively, the fourth color pixel area include a white filter, and the fourth color pixel area is disposed at the edge portion of the first or second substrate, and is smaller than each of the first, second, and third color pixel areas.
    Type: Application
    Filed: October 13, 2015
    Publication date: August 4, 2016
    Inventors: Wan-Soon IM, Joon Gun CHONG, Jong Hak HWANG