Patents by Inventor Si-Heun Kim

Si-Heun Kim 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: 10061145
    Abstract: A liquid crystal display device, including: a display substrate including a first base substrate, a switching device disposed on the first base substrate, a color filter layer disposed on the switching device, and a first electrode disposed on the color filter layer; a counter display substrate including a second base substrate and a second electrode disposed on the second base substrate and facing the first electrode, wherein the counter display substrate is disposed separately from and facing the display substrate; a liquid crystal layer disposed between the display substrate and the counter display substrate, wherein the liquid crystal layer includes at least one first liquid crystal compound represented by Formula 1 and at least one second liquid crystal compound represented by Formula 2; and a light-shielding spacer disposed between the display substrate and the counter display substrate and maintaining a thickness of the liquid crystal layer: wherein in Formula 1 and Formula 2, each of R11—*, R
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: August 28, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Si Heun Kim, Soon Joon Rho, Jong Ho Son, Kyung Hae Park, Joon Hyung Park, Beom Soo Shin, Hye Lim Jang, Kang Seob Jeong
  • Patent number: 9988576
    Abstract: A liquid crystal display device comprises a display panel including a first base substrate, a switching element disposed on the first base substrate, a color filter layer disposed on the switching element, and a pixel electrode disposed on the color filter layer; a counter display panel including a second base substrate and a common electrode disposed on the second base substrate and facing the display panel; a liquid crystal layer disposed between the display panel and the counter display panel and having negative dielectric anisotropy, wherein the liquid crystal layer includes at least one compound represented by Formula 1 below, and the liquid crystal layer does not include a compound represented by Formula A below; and a light-blocking spacer disposed on the display panel and including an area overlapping the switching element, and maintaining the thickness of the liquid crystal layer.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: June 5, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon Joon Rho, Joon Hyung Park, Jong Ho Son, Beom Soo Shin, Kang Seob Jeong, Si Heun Kim, Kyung Hae Park, Keun Chan Oh, Hye Lim Jang
  • Patent number: 9902905
    Abstract: A liquid crystal composition includes at least one polar liquid crystal molecule represented by Chemical Formulas A or B. Each K is independently 1,4-cyclohexylene or 1,4-phenylene, groups connected to carbon ring of 1,4-cyclohexylene or 1,4-phenylene are all hydrogen or at least one of the groups is fluorine, and n is 1 or 2; in Chemical Formula A, X1 and X2 are independently a single bond, —CH2-, —CH2CH2-, —CF2-, —CH2O—, or —OCH2-, L1 and L2 are independently —H, —F, —CF3, or —OCF3, and R1 and R2 are independently an alkyl or alkoxy group having 1 to 9 carbon atoms or an alkenyl group having 2 to 9 carbon atoms; in Chemical Formula B, L3 and L4 are independently —H, —F, —CF3, or —OCF3, and R3 is an alkyl or alkoxy group having 1 to 9 carbon atoms or an alkenyl group having 2 to 9 carbon atoms.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: February 27, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Si Heun Kim, Beom-Soo Shin, Hye Lim Jang
  • Patent number: 9862886
    Abstract: An exemplary embodiment of the present invention provides a compound represented by Chemical Formula 1: wherein, in Chemical Formula 1, n is 0, 1, or 2, and a substituent represented by X is F, Cl, CF3, CF2CF3 CHF2, CH2F, OCF3, CN, NCS, or a C1 to C5 alkyl including 1 to 3 fluoro substituents and a CH2 group independently substituted with one or more oxygen atoms; (R1) is hydrogen or a C1 to C15 alkyl, at least one CH2 group being independently replaced with —C?C—, —CF2O—, —CH?CH—, —O—, —CO—O—, —O—CO—, or —O—CO—O— in a way that oxygen atoms are directly connected to each other, and 1 to 3 hydrogen atoms of the C1 to C15 alkyl being replaced with halogen; (F) indicates that a fluoro is optionally substituted in place of a hydrogen, and each of is independently
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hye Lim Jang, Beom-Soo Shin, Si Heun Kim, Keun Chan Oh, Bong Hee Kim, Sun Hee Lee
  • Patent number: 9783735
    Abstract: A liquid crystal display device comprises a first substrate, a second substrate which faces the first substrate, an electrode part which is provided on at least one of the first substrate and the second substrate, and a liquid crystal layer which comprises a liquid crystal composition and is provided between the first substrate and the second substrate. The liquid crystal composition includes a liquid crystal compound of Formula 1. wherein R1, R2, A11, A12, A13, A21, A22, Z11, Z12, Z13, Z21, Z22, a, b, c, d, and e are as described herein.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: October 10, 2017
    Assignees: SAMSUNG DISPLAY CO., LTD., DONGJIN SEMICHEM CO., LTD.
    Inventors: Si Heun Kim, Beom Soo Shin, Keun Chan Oh, Bong Hee Kim, Young Ho Seo
  • Publication number: 20170261791
    Abstract: A liquid crystal display device, including: a display substrate including a first base substrate, a switching device disposed on the first base substrate, a color filter layer disposed on the switching device, and a first electrode disposed on the color filter layer; a counter display substrate including a second base substrate and a second electrode disposed on the second base substrate and facing the first electrode, wherein the counter display substrate is disposed separately from and facing the display substrate; a liquid crystal layer disposed between the display substrate and the counter display substrate, wherein the liquid crystal layer includes at least one first liquid crystal compound represented by Formula 1 and at least one second liquid crystal compound represented by Formula 2; and a light-shielding spacer disposed between the display substrate and the counter display substrate and maintaining a thickness of the liquid crystal layer: wherein in Formula 1 and Formula 2, each of R11—*, R1
    Type: Application
    Filed: November 21, 2016
    Publication date: September 14, 2017
    Inventors: Si Heun KIM, Soon Joon RHO, Jong Ho SON, Kyung Hae PARK, Joon Hyung PARK, Beom Soo SHIN, Hye Lim JANG, Kang Seob JEONG
  • Patent number: 9746737
    Abstract: Provided is a liquid crystal display device including a first substrate on which a first alignment layer is formed, a second substrate on which a second alignment layer is formed, and a liquid crystal layer disposed between the first and second alignment layers and including liquid crystals of a helical structure in which a helical axis is parallel to the first and second substrates. At least one of the first and second alignment layers has a graduation distribution profile of a pretilt angle which ranges from about 0 degrees to about 90 degrees.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: August 29, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si-Heun Kim, Chang-Hun Lee, Jun-Woo Lee
  • Publication number: 20170174990
    Abstract: A liquid crystal display device comprises a display panel including a first base substrate, a switching element disposed on the first base substrate, a color filter layer disposed on the switching element, and a pixel electrode disposed on the color filter layer; a counter display panel including a second base substrate and a common electrode disposed on the second base substrate and facing the display panel; a liquid crystal layer disposed between the display panel and the counter display panel and having negative dielectric anisotropy, wherein the liquid crystal layer includes at least one compound represented by Formula 1 below, and the liquid crystal layer does not include a compound represented by Formula A below; and a light-blocking spacer disposed on the display panel and including an area overlapping the switching element, and maintaining the thickness of the liquid crystal layer.
    Type: Application
    Filed: June 20, 2016
    Publication date: June 22, 2017
    Inventors: Soon Joon RHO, Joon Hyung PARK, Jong Ho SON, Beom Soo SHIN, Kang Seob JEONG, Si Heun KIM, Kyung Hae PARK, Keun Chan OH, Hye Lim JANG
  • Patent number: 9562193
    Abstract: A liquid crystal display includes: a first insulation substrate; a gate line and a data line formed on the first insulation substrate; a first electrode and a second electrode formed on the gate line and the data line and overlapping each other via an insulating layer interposed therebetween; a second insulation substrate facing the first insulation substrate; and a chiral dopant inserted between the first insulation substrate and the second insulation substrate. A content of the chiral dopant may be within about 1%, and liquid crystal molecules of a liquid crystal layer may be twisted with a pitch of about 10 ?m to about 100 ?m by the chiral dopant.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: February 7, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si Heun Kim, Chang-Hun Lee, Daisuke Inoue, Mi Suk Kim, Tae Ho Kim, So Youn Park, Keun Chan Oh
  • Patent number: 9559127
    Abstract: A thin film transistor array panel includes an insulation substrate; a gate line and a first electrode on the insulation substrate; a gate insulating layer on the gate line and the first electrode; a data line on the gate insulating layer; a passivation layer on the gate insulating layer and the data line; and a second electrode on the passivation layer. Relative permittivity (?) of the gate insulating layer is more than about 15, and a thickness of the gate insulating layer is about 2000 angstroms.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: January 31, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Daisuke Inoue, Mi Suk Kim, Si Heun Kim, Tae Ho Kim, So Youn Park, Keun Chan Oh, Chang-Hun Lee
  • Publication number: 20170015904
    Abstract: A liquid crystal composition includes a first compound represented by Chemical Formula 1. In Chemical Formula 1, R1 is an alkyl group having a carbon number of 1 to 10 or a cycloalkyl group having a total carbon number of 3 to 16, and R2 is an alkoxy group having a carbon number of 1 to 10. The liquid crystal composition does not include a compound having an alkenyl as a substituent group, and the liquid crystal composition does not include a compound represented by Chemical Formula 4. In Chemical Formula 4, R5 and R5? are independently an alkyl group having a carbon number of 1 to 10 or an alkoxy group having a carbon number of 1 to 10.
    Type: Application
    Filed: January 21, 2016
    Publication date: January 19, 2017
    Inventors: Soon Joon Rho, Sun Young Kwon, Kyung Min Kim, Se Ran Kim, Si Heun Kim, Hoi-Lim Kim, Beom-Soo Shin, Keun Chan Oh, Hye Kim Jang
  • Publication number: 20160369167
    Abstract: An exemplary embodiment of the present invention provides a compound represented by Chemical Formula 1: wherein, in Chemical Formula 1, n is 0, 1, or 2, and a substituent represented by X is F, Cl, CF3, CF2CF3 CHF2, CH2F, OCF3, CN, NCS, or a C1 to C5 alkyl including 1 to 3 fluoro substituents and a CH2 group independently substituted with one or more oxygen atoms; (R1) is hydrogen or a C1 to C15 alkyl, at least one CH2 group being independently replaced with —C?C—, —CF2O—, —CH?CH—, —O—, —CO—O—, —O—CO—, or —O—CO—O— in a way that oxygen atoms are directly connected to each other, and 1 to 3 hydrogen atoms of the C1 to C15 alkyl being replaced with halogen; (F) indicates that a fluoro is optionally substituted in place of a hydrogen, and each of is independently
    Type: Application
    Filed: June 16, 2016
    Publication date: December 22, 2016
    Inventors: Hye Lim JANG, Beom-Soo SHIN, Si Heun KIM, Keun Chan OH, Bong Hee KIM, Sun Hee LEE
  • Publication number: 20160362604
    Abstract: A liquid crystal composition includes at least one polar liquid crystal molecule represented by Chemical Formulas A or B. Each K is independently 1,4-cyclohexylene or 1,4-phenylene, groups connected to carbon ring of 1,4-cyclohexylene or 1,4-phenylene are all hydrogen or at least one of the groups is fluorine, and n is 1 or 2; in Chemical Formula A, X1 and X2 are independently a single bond, —CH2?, —CH2CH2?, —CF2?, —CH2O—, or —OCH2?, L1 and L2 are independently —H, —F, —CF3, or —OCF3, and R1 and R2 are independently an alkyl or alkoxy group having 1 to 9 carbon atoms or an alkenyl group having 2 to 9 carbon atoms; in Chemical Formula B, L3 and L4 are independently —H, —F, —CF3, or —OCF3, and R3 is an alkyl or alkoxy group having 1 to 9 carbon atoms or an alkenyl group having 2 to 9 carbon atoms.
    Type: Application
    Filed: March 28, 2016
    Publication date: December 15, 2016
    Inventors: Si Heun KIM, Beom-Soo SHIN, Hye Lim JANG
  • Patent number: 9494836
    Abstract: A liquid crystal display includes: a first substrate; a gate line and a data line disposed on the first substrate; a passivation layer disposed on the gate line and the data line; a first electrode and a second electrode disposed on the passivation layer; and a first insulating layer interposed between the first and second electrodes, where the first and second electrodes overlap each other via the first insulating layer, the second electrode includes a plurality of branch electrodes, and an end portion of the plurality of branch electrodes includes a first side portion and a second side portion extending parallel to the data line, and an oblique portion which connects the first side portion and the second side portion to each other and forms a first angle of less than 90 degrees with an extending line of the first side portion.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: November 15, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mi Suk Kim, Chang-Hun Lee, Tae Ho Kim, Si Heun Kim, So Youn Park, Keun Chan Oh, Daisuke Inoue
  • Publication number: 20160304783
    Abstract: A liquid crystal display device comprises a first substrate, a second substrate which faces the first substrate, an electrode part which is provided on at least one of the first substrate and the second substrate, and a liquid crystal layer which comprises a liquid crystal composition and is provided between the first substrate and the second substrate. The liquid crystal composition includes a liquid crystal compound of Formula 1. wherein R1, R2, A11, A12, A13, A21, A22, Z11, Z12, Z13, Z21, Z22, a, b, c, d, and e are as described herein.
    Type: Application
    Filed: March 3, 2016
    Publication date: October 20, 2016
    Inventors: Si Heun KIM, Beom Soo SHIN, Keun Chan OH, Bong Hee KIM, Young Ho SEO
  • Publication number: 20160252794
    Abstract: A liquid crystal display includes: a first substrate; a gate line and a data line disposed on the first substrate; a passivation layer disposed on the gate line and the data line; a first electrode and a second electrode disposed on the passivation layer; and a first insulating layer interposed between the first and second electrodes, where the first and second electrodes overlap each other via the first insulating layer, the second electrode includes a plurality of branch electrodes, and an end portion of the plurality of branch electrodes includes a first side portion and a second side portion extending parallel to the data line, and an oblique portion which connects the first side portion and the second side portion to each other and forms a first angle of less than 90 degrees with an extending line of the first side portion.
    Type: Application
    Filed: May 10, 2016
    Publication date: September 1, 2016
    Inventors: Mi Suk KIM, Chang-Hun LEE, Tae Ho KIM, Si Heun KIM, So Youn PARK, Keun Chan OH, Daisuke INOUE
  • Patent number: 9416316
    Abstract: A liquid crystal composition including a first class including a polar liquid crystal compound having at least one fluorine atom and a second class compound including a neutral liquid crystal compound, in which the first class compound includes a first subclass compound having a dielectric anisotropy (??) of 15 to 21 and a second subclass compound having a dielectric anisotropy (??) of 5 to 15, and the first sub-class compound includes a liquid crystal compound expressed by the following Chemical Formula 1, in which R is an alkyl group or an alkenyl group.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: August 16, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Si Heun Kim, Eun A Kim
  • Publication number: 20160185763
    Abstract: A liquid crystal stabilizer according to an exemplary embodiment of the present invention includes at least one of the compounds represented by the following Chemical Formulae 1 and 2. X1 is any one of H, O, OR, and R, X2 is any one of O, OCO, OR, RO, NOR, and R, X3 is any one of O, OCO, OR, RO, NOR, and R, A and B each independently include one or more of a cyclohexyl group, a cyclic ether group, and a phenyl group, R is an alkyl group having 1 to 5 carbon atoms, and m and n are each independently a natural number from 0 to 2.
    Type: Application
    Filed: June 19, 2015
    Publication date: June 30, 2016
    Inventors: Si Heun KIM, Fusayuki TAKESHITA, Ji Hong BAE, Beom-Soo SHIN, Keun Chan OH, Hye Lim JANG
  • Patent number: 9341899
    Abstract: A liquid crystal display includes: a first substrate; a gate line and a data line disposed on the first substrate; a passivation layer disposed on the gate line and the data line; a first electrode and a second electrode disposed on the passivation layer; and a first insulating layer interposed between the first and second electrodes, where the first and second electrodes overlap each other via the first insulating layer, the second electrode includes a plurality of branch electrodes, and an end portion of the plurality of branch electrodes includes a first side portion and a second side portion extending parallel to the data line, and an oblique portion which connects the first side portion and the second side portion to each other and forms a first angle of less than 90 degrees with an extending line of the first side portion.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: May 17, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mi Suk Kim, Chang-Hun Lee, Tae Ho Kim, Si Heun Kim, So Youn Park, Keun Chan Oh, Daisuke Inoue
  • Publication number: 20160011464
    Abstract: Provided is a liquid crystal display device including a first substrate on which a first alignment layer is formed, a second substrate on which a second alignment layer is formed, and a liquid crystal layer disposed between the first and second alignment layers and including liquid crystals of a helical structure in which a helical axis is parallel to the first and second substrates. At least one of the first and second alignment layers has a graduation distribution profile of a pretilt angle which ranges from about 0 degrees to about 90 degrees.
    Type: Application
    Filed: January 23, 2015
    Publication date: January 14, 2016
    Inventors: Si-Heun Kim, Chang-Hun Lee, Jun-Woo Lee