Patents by Inventor Kang Seob JEONG

Kang Seob JEONG 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).

  • Publication number: 20230102623
    Abstract: A color conversion substrate and a display device including the same are provided, the color conversion substrate including a substrate, color filter layers on the substrate, and arranged in a first direction, and in a second direction intersecting the first direction, a bank layer defining openings overlapping the color filter layers, and including a first bank part extending in the second direction, and second bank parts extending in the first direction from a side of the first bank part, and wavelength conversion layers in the openings of the bank layer, wherein the first bank part includes a recess recessed inwardly from a part of a second side opposite a first side on which the second bank parts are located.
    Type: Application
    Filed: June 16, 2022
    Publication date: March 30, 2023
    Inventors: Kang Seob JEONG, Tae Hoon KIM, Joon Hyung PARK, Min Hee KIM, Sim Bum YUK, Do Kyung YOUN, Chang Hun LEE
  • Patent number: 11479721
    Abstract: A liquid crystal composition includes the following compounds: (in a range of 21.5 to 26.5 parts by weight) a compound represented by a first chemical formula, (in a range of 2.5 to 7.5 parts by weight) a compound represented by a second chemical formula, (in a range of 12.5 to 17.5 parts by weight) a compound represented by a third chemical formula, (in a range of 5.5 to 10.5 parts by weight) a compound represented by a fourth chemical formula, (in a range of 7.5 to 12.5 parts by weight) a compound represented by a fifth chemical formula, (in a range of 2 to 7 parts by weight) a compound represented by a sixth chemical formula, (in a range of 10.5 to 15.5 parts by weight) a compound represented by a seventh chemical formula, and (in a range of 13 to 18 parts by weight) an compound represented by an eighth chemical formula 8.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: October 25, 2022
    Inventors: Kyung Min Kim, Sung Jae Yun, Kang Seob Jeong, Jin Suek Kim, Heung Shik Park
  • Publication number: 20210261863
    Abstract: A liquid crystal composition includes the following compounds: (in a range of 21.5 to 26.5 parts by weight) a compound represented by a first chemical formula, (in a range of 2.5 to 7.5 parts by weight) a compound represented by a second chemical formula, (in a range of 12.5 to 17.5 parts by weight) a compound represented by a third chemical formula, (in a range of 5.5 to 10.5 parts by weight) a compound represented by a fourth chemical formula, (in a range of 7.5 to 12.5 parts by weight) a compound represented by a fifth chemical formula, (in a range of 2 to 7 parts by weight) a compound represented by a sixth chemical formula, (in a range of 10.5 to 15.5 parts by weight) a compound represented by a seventh chemical formula, and (in a range of 13 to 18 parts by weight) an compound represented by an eighth chemical formula 8.
    Type: Application
    Filed: September 10, 2020
    Publication date: August 26, 2021
    Inventors: Kyung Min KIM, Sung Jae YUN, Kang Seob JEONG, Jin Suek KIM, Heung Shik PARK
  • Patent number: 10535315
    Abstract: A display device including a liquid crystal panel assembly including a plurality of pixels, a data driver applying a data voltage to a plurality of data lines which is connected to the plurality of pixels, and a common voltage generator providing a common voltage to the liquid crystal panel assembly, in which the common voltage is an optimal common voltage for a maximum grayscale at which a flicker is minimized while a data voltage with a maximum grayscale is applied to the plurality of pixels.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: January 14, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon-Hyung Park, Sun Young Kwon, Min-Hee Kim, Ji Hong Bae, Jong Ho Son, Keun Chan Oh, Kyung Hee Lee, Kang Seob Jeong, Kyung Seon Tak
  • Patent number: 10502990
    Abstract: A liquid crystal display (LCD) includes: a first pixel configured to emit first light having a first wavelength; a second pixel configured to emit second light having a second wavelength longer than the first wavelength; a third pixel configured to emit third light having a third wavelength longer than the second wavelength; and a liquid crystal (LC) panel in which driving voltages for maximum transmittances for the first light, the second light, and the third light are different from each other. The LCD is configured to apply different voltages to pixel electrodes of the first pixel, the second pixel, and the third pixel, respectively, such that the first light, the second light, and the third light respectively emitted by the first pixel, the second pixel, and the third pixel are transmitted at the respective maximum transmittances.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: December 10, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Ho Son, Keun Chan Oh, Min-Hee Kim, Kyung Seon Tak, Joon-Hyung Park, Kang Seob Jeong
  • Patent number: 10444571
    Abstract: A liquid crystal display, including: a first substrate, and a second substrate facing the first substrate; a liquid crystal layer disposed between the first substrate and the second substrates; 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 reactive mesogens; and the liquid crystal layer includes an antioxidant.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: October 15, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Hyung Park, Kang Seob Jeong, Jong Ho Son
  • Patent number: 10234729
    Abstract: A liquid crystal display device includes a first substrate including one surface, a second substrate including one surface and the other surface, a first alignment layer which is disposed on the one surface of the first substrate, includes a polymeric material, and has a first thickness, a first photocured layer disposed on the first alignment layer, a second alignment layer which is disposed on the one surface of the second substrate, and includes a polymeric material same as the polymeric material in the first alignment layer, and which has a second thickness less than the first thickness, a second photocured layer disposed on the second alignment layer, and a liquid crystal layer which includes first liquid crystal molecules and second liquid crystal molecules further vertically aligned than the first liquid crystal molecules in an initial aligned state.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Beom Soo Shin, Hye Lim Jang, Young Joo Jeon, Kang Seob Jeong
  • Publication number: 20180342219
    Abstract: A display device including a liquid crystal panel assembly including a plurality of pixels, a data driver applying a data voltage to a plurality of data lines which is connected to the plurality of pixels, and a common voltage generator providing a common voltage to the liquid crystal panel assembly, in which the common voltage is an optimal common voltage for a maximum grayscale at which a flicker is minimized while a data voltage with a maximum grayscale is applied to the plurality of pixels.
    Type: Application
    Filed: August 7, 2018
    Publication date: November 29, 2018
    Inventors: Joon-Hyung Park, Sun Young Kwon, Min-Hee Kim, Ji Hong Bae, Jong Ho Son, Keun Chan Oh, Kyung Hee Lee, Kang Seob Jeong, Kyung Seon Tak
  • Patent number: 10062346
    Abstract: A display device including: a liquid crystal panel assembly including pixels; a data driver applying a data voltage to lines which is connected to the pixels; and a common voltage generator providing voltage to the liquid crystal panel assembly, in which the voltage is an optimal voltage for a maximum grayscale at which a flicker is minimized while a maximum grayscale is applied to the pixels, the data driver applies the data voltage with the minimum grayscale to the data lines so that a negative data voltage with a minimum grayscale is higher than the common voltage by a first voltage level or more, and each of the pixels includes a first subpixel and a second subpixel, and when the data voltage is applied to the pixel, a pixel voltage of the first subpixel and a pixel voltage of the second subpixel are different.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: August 28, 2018
    Assignee: Samsung Display Co., Ltd
    Inventors: Joon-Hyung Park, Sun Young Kwon, Min-Hee Kim, Ji Hong Bae, Jong Ho Son, Keun Chan Oh, Kyung Hee Lee, Kang Seob Jeong, Kyung Seon Tak
  • 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: 10007148
    Abstract: A liquid crystal composition includes a first compound expressed by following Chemical Formula 1 and about 0.001 wt % to about 0.05 wt % of a second compound expressed by following Chemical Formula 2, where A and B are a cyclo-hexyl group or a phenyl group, m is 0 to 4, n is 1 to 2, X is an alkyl group or an alkoxy group, and Y is one or two fluorine (F) or chlorine (Cl) atoms, and where n is 0 to 2, I is 0 to 1, Z is a halogen group, an alkyl group, or an alkoxy group, and A and A? are methyl groups that do not independently exist.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: June 26, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon-Hyung Park, Kyung Seon Tak, Kang Seob Jeong, Min-Hee Kim
  • 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
  • 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
  • Publication number: 20170219888
    Abstract: A liquid crystal display, including: a first substrate, and a second substrate facing the first substrate; a liquid crystal layer disposed between the first substrate and the second substrates; 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 reactive mesogens; and the liquid crystal layer includes an antioxidant.
    Type: Application
    Filed: August 15, 2016
    Publication date: August 3, 2017
    Inventors: Joon Hyung PARK, Kang Seob JEONG, Jong Ho SON
  • 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
  • Publication number: 20170123277
    Abstract: A liquid crystal display device includes a first substrate including one surface, a second substrate including one surface and the other surface, a first alignment layer which is disposed on the one surface of the first substrate, includes a polymeric material, and has a first thickness, a first photocured layer disposed on the first alignment layer, a second alignment layer which is disposed on the one surface of the second substrate, and includes a polymeric material same as the polymeric material in the first alignment layer, and which has a second thickness less than the first thickness, a second photocured layer disposed on the second alignment layer, and a liquid crystal layer which includes first liquid crystal molecules and second liquid crystal molecules further vertically aligned than the first liquid crystal molecules in an initial aligned state.
    Type: Application
    Filed: November 1, 2016
    Publication date: May 4, 2017
    Inventors: Beom Soo SHIN, Hye Lim JANG, Young Joo JEON, Kang Seob JEONG
  • Patent number: 9605206
    Abstract: A liquid crystal composition includes a first class including a first compound represented by Chemical Formula 1, wherein the first compound is 13 to 18 parts by weight based on 100 parts by weight of the total liquid crystal composition, and a second compound represented by Chemical Formula 2, wherein the second compound is 8 to 13 parts by weight based on 100 parts by weight of the total liquid crystal composition, a second class including a third compound represented by Chemical Formula 3. Chemical Formulas 1, 2, and 3 are represented by: and wherein R and R? are, independently of each other, a hydrogen atom, or an unsubstituted or substituted C1 to C7 alkyl group.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: March 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang Seob Jeong, Kyung Seon Tak, Min-Hee Kim, Kyung Hee Lee, Sun Young Kwon, Joon-Hyung Park, Ji Hong Bae, Jong Ho Son, Keun Chan Oh
  • Publication number: 20160370634
    Abstract: A liquid crystal display (LCD) includes: a first pixel configured to emit first light having a first wavelength; a second pixel configured to emit second light having a second wavelength longer than the first wavelength; a third pixel configured to emit third light having a third wavelength longer than the second wavelength; and a liquid crystal (LC) panel in which driving voltages for maximum transmittances for the first light, the second light, and the third light are different from each other. The LCD is configured to apply different voltages to pixel electrodes of the first pixel, the second pixel, and the third pixel, respectively, such that the first light, the second light, and the third light respectively emitted by the first pixel, the second pixel, and the third pixel are transmitted at the respective maximum transmittances.
    Type: Application
    Filed: January 27, 2016
    Publication date: December 22, 2016
    Inventors: Jong Ho SON, Keun Chan OH, Min-Hee KIM, Kyung Seon TAK, Joon-Hyung PARK, Kang Seob JEONG
  • Publication number: 20160200976
    Abstract: A liquid crystal composition includes a first class including a first compound represented by Chemical Formula 1, wherein the first compound is 13 to 18 parts by weight based on 100 parts by weight of the total liquid crystal composition, and a second compound represented by Chemical Formula 2, wherein the second compound is 8 to 13 parts by weight based on 100 parts by weight of the total liquid crystal composition, a second class including a third compound represented by Chemical Formula 3. Chemical Formulas 1, 2, and 3 are represented by: and wherein R and R? are, independently of each other, a hydrogen atom, or an unsubstituted or substituted C1 to C7 alkyl group.
    Type: Application
    Filed: July 23, 2015
    Publication date: July 14, 2016
    Inventors: Kang Seob JEONG, Kyung Seon TAK, Min-Hee KIM, Kyung Hee LEE, Sun Young KWON, Joon-Hyung PARK, Ji Hong BAE, Jong Ho SON, Keun Chan OH
  • Publication number: 20160189656
    Abstract: A display device including: a liquid crystal panel assembly including pixels; a data driver applying a data voltage to lines which is connected to the pixels; and a common voltage generator providing voltage to the liquid crystal panel assembly, in which the voltage is an optimal voltage for a maximum grayscale at which a flicker is minimized while a maximum grayscale is applied to the pixels, the data driver applies the data voltage with the minimum grayscale to the data lines so that a negative data voltage with a minimum grayscale is higher than the common voltage by a first voltage level or more, and each of the pixels includes a first subpixel and a second subpixel, and when the data voltage is applied to the pixel, a pixel voltage of the first subpixel and a pixel voltage of the second subpixel are different.
    Type: Application
    Filed: June 18, 2015
    Publication date: June 30, 2016
    Inventors: Joon-Hyung PARK, Sun Young KWON, Min-Hee KIM, Ji Hong BAE, Jong Ho SON, Keun Chan OH, Kyung Hee LEE, Kang Seob JEONG, Kyung Seon TAK