Patents by Inventor Hyun-Ku AHN

Hyun-Ku 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).

  • Patent number: 10809550
    Abstract: A method of repairing a liquid crystal display device, the method including, providing a liquid crystal display device including a substrate, a light blocking member disposed on the substrate, and an overcoat layer which is disposed on the substrate and the light blocking member and which contains a material capable of absorbing ultraviolet light having a wavelength range from 200 nanometers to 400 nanometers; and irradiating the overcoat layer with a laser beam having a wavelength range from 200 nanometers to 400 nanometers to form a microcavity between the substrate and the overcoat layer to repair the liquid crystal display.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young Gu Kim, Hyun Ku Ahn, Baek Kyun Jeon, Jae Weon Hur
  • Patent number: 10503020
    Abstract: A liquid crystal display including a first substrate and a second substrate facing each other; a liquid crystal layer disposed between the first substrate and the second substrate; a first liquid crystal alignment layer disposed between the liquid crystal layer and the first substrate; and a second liquid crystal alignment layer disposed between the liquid crystal layer and the second substrate. At least one of the first liquid crystal alignment layer and the second liquid crystal alignment layer includes a reactive mesogen.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: December 10, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gi Hoon Yang, Sung Yi Kim, Hyun Ku Ahn, Ho Lim, Ji Phyo Hong
  • Publication number: 20190258119
    Abstract: A liquid crystal display includes a display panel, an opposite display panel, a liquid crystal layer between the display panel and the opposite display panel. The display panel includes a first base substrate, a pretilt alignment stabilization layer including a polymer of a reactive mesogen, a first vertical alignment layer including a decomposition product of a polymerization initiator between the first base substrate and the pretilt alignment stabilization layer, and a pattern electrode between the first base substrate and the first vertical alignment layer. The opposite display panel includes a second base substrate, a patternless electrode on the second base substrate, and a second vertical alignment layer on the patternless electrode, which includes the decomposition product of the polymerization initiator. The liquid crystal layer includes a liquid crystal composition having negative dielectric anisotropy. A surface of the LCD that faces a viewer has a concave shaped curve.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Inventors: Heung Shik PARK, Sang Gyun KIM, Hyun Ku AHN, Ki Chul SHIN
  • Patent number: 10190050
    Abstract: A liquid crystal composition including: a liquid crystal compound and a liquid crystal aligning agent including at least one compound represented by Formula 1: wherein in the Formula 1, X—*, *-L1-*, *-L2-*, *-L3-*, *—C—*, *—R—*, *—Y, n1, n2, and m are the same as defined in the specification.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: January 29, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ho Lim, Hyun Ku Ahn, Jae Jin Lyu
  • Patent number: 10041001
    Abstract: A liquid crystal composition including: a liquid crystal compound and a liquid crystal aligning agent containing at least one compound represented by Formula 1: wherein in the Formula 1, X—*, *-L1-*, *-L2-*, *-L3-*, *—C—*, *—R—*, Y—*, n1, n2, and m is the same as defined in the specification.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: August 7, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ho Lim, Hyun Ku Ahn, Jae Jin Lyu
  • Patent number: 9823514
    Abstract: A liquid crystal display includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a first liquid crystal alignment layer disposed between the liquid crystal layer and the first substrate, and a second liquid crystal alignment layer disposed between the liquid crystal layer and the second substrate, wherein at least one of the first liquid crystal alignment layer and the second liquid crystal alignment layer includes a reactive mesogen.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: November 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ho Lim, Sung Yi Kim, Duck Jong Suh, Hyun Ku Ahn, Gi Hoon Yang
  • Publication number: 20170276984
    Abstract: A liquid crystal display device comprising: a first substrate; a first gate line which extends in a first direction; first and second data lines which extend in a second direction different from the first direction and are adjacent to each other; a first pixel which includes a first display area in which a first pixel electrode connected to the first data line is disposed, and a first circuit area in which a first gate electrode connected to the first gate line is disposed; a second pixel which includes a second display area in which a second pixel electrode connected to the second data line is disposed, and a second circuit area in which a second gate electrode connected to the second gate line is disposed; and an opaque conductive pattern which extends in the first direction so as to overlap the first circuit area and the second circuit area.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 28, 2017
    Inventors: Ji Phyo HONG, Sung Yi KIM, Young Gu KIM, Hyun Ku AHN, Gi Hoon YANG, Ho LIM, Suk Kung CHEI
  • Publication number: 20170255061
    Abstract: A liquid crystal display including a first substrate and a second substrate facing each other; a liquid crystal layer disposed between the first substrate and the second substrate; a first liquid crystal alignment layer disposed between the liquid crystal layer and the first substrate; and a second liquid crystal alignment layer disposed between the liquid crystal layer and the second substrate. At least one of the first liquid crystal alignment layer and the second liquid crystal alignment layer includes a reactive mesogen.
    Type: Application
    Filed: February 28, 2017
    Publication date: September 7, 2017
    Inventors: GI HOON YANG, SUNG YI KIM, HYUN KU AHN, HO LIM, JI PHYO HONG
  • Patent number: 9746738
    Abstract: A liquid crystal display device including: a first substrate including a first base substrate, a first field-generating electrode disposed on the first base substrate, and a second field-generating electrode disposed on the first field-generating electrode; a second substrate facing the first base substrate and disposed spaced apart from the first substrate; a liquid crystal layer including liquid crystals, in which an electric field is formed by the first field-generating electrode and the second field-generating electrode, being disposed between the first substrate and the second substrate and contacting the second field-generating electrode; and a plurality of first projections disposed between the second field-generating electrode and the liquid crystal layer.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: August 29, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ho Lim, Sung Yi Kim, Hyun Ku Ahn, Gi Hoon Yang, Suk Kung Chei, Ji Phyo Hong
  • Publication number: 20170235164
    Abstract: A liquid crystal display device including: a first substrate including a first base substrate, a first field-generating electrode disposed on the first base substrate, and a second field-generating electrode disposed on the first field-generating electrode; a second substrate facing the first base substrate and disposed spaced apart from the first substrate; a liquid crystal layer including liquid crystals, in which an electric field is formed by the first field-generating electrode and the second field-generating electrode, being disposed between the first substrate and the second substrate and contacting the second field-generating electrode; and a plurality of first projections disposed between the second field-generating electrode and the liquid crystal layer.
    Type: Application
    Filed: July 11, 2016
    Publication date: August 17, 2017
    Inventors: Ho LIM, Sung Yi KIM, Hyun Ku AHN, Gi Hoon YANG, Suk Kung CHEI, Ji Phyo HONG
  • Publication number: 20170210993
    Abstract: A liquid crystal composition including: a liquid crystal compound and a liquid crystal aligning agent containing at least one compound represented by Formula 1: wherein in the Formula 1, X-*, *-L1-*, *-L2-*, *-L3-*, *—C—*, *-R-*, Y-*, n1, n2, and m is the same as defined in the specification.
    Type: Application
    Filed: July 7, 2016
    Publication date: July 27, 2017
    Inventors: Ho LIM, Hyun Ku AHN, Jae Jin LYU
  • Publication number: 20170210994
    Abstract: A liquid crystal composition including: a liquid crystal compound and a liquid crystal aligning agent including at least one compound represented by Formula 1: wherein in the Formula 1, X—*, *-L1-*, *-L2-*, *-L3-*, *—C—*, *—R—*, *—Y, n1, n2, and m are the same as defined in the specification.
    Type: Application
    Filed: January 18, 2017
    Publication date: July 27, 2017
    Inventors: Ho LIM, Hyun Ku AHN, Jae Jin LYU
  • Publication number: 20170184922
    Abstract: A liquid crystal display includes a display panel, an opposite display panel, a liquid crystal layer between the display panel and the opposite display panel. The display panel includes a first base substrate, a pretilt alignment stabilization layer including a polymer of a reactive mesogen, a first vertical alignment layer including a decomposition product of a polymerization initiator between the first base substrate and the pretilt alignment stabilization layer, and a pattern electrode between the first base substrate and the first vertical alignment layer. The opposite display panel includes a second base substrate, a patternless electrode on the second base substrate, and a second vertical alignment layer on the patternless electrode, which includes the decomposition product of the polymerization initiator. The liquid crystal layer includes a liquid crystal composition having negative dielectric anisotropy. A surface of the LCD that faces a viewer has a concave shaped curve.
    Type: Application
    Filed: June 17, 2016
    Publication date: June 29, 2017
    Inventors: Heung Shik PARK, Sang Gyun KIM, Hyun Ku AHN, Ki Chul SHIN
  • Publication number: 20170090223
    Abstract: A method of repairing a liquid crystal display device, the method including, providing a liquid crystal display device including a substrate, a light blocking member disposed on the substrate, and an overcoat layer which is disposed on the substrate and the light blocking member and which contains a material capable of absorbing ultraviolet light having a wavelength range from 200 nanometers to 400 nanometers; and irradiating the overcoat layer with a laser beam having a wavelength range from 200 nanometers to 400 nanometers to form a microcavity between the substrate and the overcoat layer to repair the liquid crystal display.
    Type: Application
    Filed: January 12, 2016
    Publication date: March 30, 2017
    Inventors: Young Gu KIM, Hyun Ku AHN, Baek Kyun JEON, Jae Weon HUR
  • Publication number: 20170068133
    Abstract: A liquid crystal display includes a first substrate, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a first liquid crystal alignment layer disposed between the liquid crystal layer and the first substrate, and a second liquid crystal alignment layer disposed between the liquid crystal layer and the second substrate, wherein at least one of the first liquid crystal alignment layer and the second liquid crystal alignment layer includes a reactive mesogen.
    Type: Application
    Filed: March 17, 2016
    Publication date: March 9, 2017
    Inventors: Ho LIM, Sung Yi KIM, Duck Jong SUH, Hyun Ku AHN, Gi Hoon YANG
  • Patent number: 9436039
    Abstract: A liquid crystal display may include: a first substrate, a second substrate facing the first substrate, a field generating electrode disposed on at least one of the first substrate and the second substrate, an alignment layer disposed on the field generating electrode, and a liquid crystal layer disposed between the first substrate and the second substrate. The alignment layer may include a lower layer including an organic material and an upper layer disposed on the lower layer and including an inorganic material.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: September 6, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Taek Joon Lee, Hyun Ku Ahn, Jae Jin Lyu
  • Patent number: 9315668
    Abstract: A liquid crystal display includes: a first insulation substrate; a second insulation substrate facing the first insulation substrate; a pixel electrode provided on the first insulation substrate; a common electrode provided on the first insulation substrate or the second insulation substrate; an alignment layer member including a first alignment layer and a second alignment layer provided on the first insulation substrate and the second insulation substrate, respectively; and a liquid crystal layer provided between the first insulation substrate and the second insulation substrate, wherein at least one of the first alignment layer and the second alignment layer includes a main chain and a plurality of side chains connected to the main chain, and the side chain includes a reactive mesogen (RM) including a functional group for increasing rigidity of the alignment layer.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hyun Ku Ahn
  • Publication number: 20160103367
    Abstract: Provided are liquid crystal display (LCD) panels. The LCD panel of one embodiment comprises a first substrate; a second substrate which faces the first substrate; a liquid crystal layer which is interposed between the first substrate and the second substrate; and a liquid crystal alignment layer which is interposed between the liquid crystal layer and at least one of the first substrate and the second substrate and comprises one or more electron-pair donors selected from the group consisting of alky amine, aryl amine, heterocyclic amine, furan, and thiophene.
    Type: Application
    Filed: April 3, 2015
    Publication date: April 14, 2016
    Inventors: Hyun ku AHN, Sung Yi KIM, Tae min KIM, Tae hoon KIM
  • Publication number: 20150205150
    Abstract: A liquid crystal display includes: a first insulation substrate; a second insulation substrate facing the first insulation substrate; a pixel electrode provided on the first insulation substrate; a common electrode provided on the first insulation substrate or the second insulation substrate; an alignment layer member including a first alignment layer and a second alignment layer provided on the first insulation substrate and the second insulation substrate, respectively; and a liquid crystal layer provided between the first insulation substrate and the second insulation substrate, wherein at least one of the first alignment layer and the second alignment layer includes a main chain and a plurality of side chains connected to the main chain, and the side chain includes a reactive mesogen (RM) including a functional group for increasing rigidity of the alignment layer.
    Type: Application
    Filed: July 15, 2014
    Publication date: July 23, 2015
    Inventor: Hyun Ku AHN
  • Patent number: 9052549
    Abstract: A liquid crystal display including: a first substrate and a second substrate facing each other; an alignment layer disposed on one of the first substrate and the second substrate and including a vertical photo-alignment material which includes a first vertical functional group and a photo-reactive group, and a major alignment material which does not include the photo-reactive group; and a liquid crystal layer disposed between the first substrate and the second substrate, wherein a ratio of a molar concentration of the vertical photo-alignment material to the molar concentration of the major alignment material increases in a direction towards a surface of the alignment layer adjacent to the liquid crystal layer.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun-Woo Lee, Jong-Sung Bae, Hoi-Lim Kim, Baek-Kyun Jeon, Suk-Hoon Kang, Jin-Soo Jung, Soo-Ryun Cho, Hyun Ku Ahn, Joo Seok Yeom, Kyoung Tae Kim, Gyo-Jic Shin, Eun Ju Kim