Patents by Inventor Pu Reum KIM

Pu Reum 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).

  • Publication number: 20250098469
    Abstract: A light emitting display device in one example can include a display region having a first display region with subpixels in a stripe manner and a second display region with the subpixels in a delta manner, a first electrode in each of first and second subpixels in the first and second display regions, a bank including a first trench along a boundary of each column line of the display region, a light emitting layer on the first electrode and the bank, a second electrode on the light emitting layer, and a color filter pattern corresponding to each of the first and second subpixels. In the second display region, a dummy subpixel is arranged alternately with the second subpixel along column and row lines. The first and second subpixels in a first column line crossing the first and second display regions display the first color.
    Type: Application
    Filed: September 11, 2024
    Publication date: March 20, 2025
    Applicant: LG Display Co., Ltd.
    Inventors: Pu-Reum KIM, Chang-Hwa JUN
  • Publication number: 20240381730
    Abstract: A display apparatus includes a substrate including a first sub-pixel and a second sub-pixel disposed adjacent to each other; a first electrode disposed in each of the first sub-pixel and the second sub-pixel on the substrate; a first light emitting layer on the first electrode in the first sub-pixel and a second light emitting layer on the first electrode in the second sub-pixel; a first trench formed between the first electrode of the first sub-pixel and the first electrode of the second sub-pixel; and a second trench formed between the first electrode of the first sub-pixel and the first trench, wherein the first light emitting layer and the second light emitting layer are disposed over the first trench.
    Type: Application
    Filed: May 8, 2024
    Publication date: November 14, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Pu-Reum KIM, Ho-Jin KIM, Jin-Hyeon KIM
  • Publication number: 20240260328
    Abstract: An organic light emitting diode display device includes a substrate having first, second and third subpixels; a first electrode in each of the first, second and third subpixels on the substrate; a first bank layer on the first electrode, the first bank layer having a first trench along a first direction; a second bank layer on the first bank layer, the second bank layer having a second trench along a second direction crossing the first direction; an emitting layer on the first electrode and the first and second bank layers; and a second electrode on the emitting layer.
    Type: Application
    Filed: November 20, 2023
    Publication date: August 1, 2024
    Applicant: LG Display Co., Ltd.
    Inventor: Pu-Reum KIM
  • Publication number: 20240224692
    Abstract: An organic light emitting diode display device can include first, second and third subpixels disposed on a substrate; first, second and third light emitting diodes disposed in the first, second and third subpixels, respectively; a black matrix disposed in boarder regions of the second subpixel and the third subpixel. Also, a first color filter is disposed in the first subpixel and overlapping with the first light emitting diode; and a transparent layer is disposed in at least one of the second and third subpixels between portions of the black matrix.
    Type: Application
    Filed: October 25, 2023
    Publication date: July 4, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Pu-Reum KIM, Yeon-Suk KANG
  • Publication number: 20240215409
    Abstract: An organic light-emitting diode display device can include a substrate providing with a plurality of sub-pixels. The device includes a light-emitting diode disposed at each of the plurality of sub-pixels over the substrate. The device includes a color filter over the light-emitting diode. The device includes a lens layer over the color filter. The device includes an overcoat layer over the lens layer. A concave portion is provided between adjacent color filters. The lens layer includes a convex lens portion over the color filter and a concave lens portion over the concave portion.
    Type: Application
    Filed: October 11, 2023
    Publication date: June 27, 2024
    Inventors: Yeon-Suk KANG, Pu-Reum KIM
  • Publication number: 20230217694
    Abstract: The present disclosure is directed to a display apparatus having a high resolution with improved light efficiency. In one aspect, such display apparatus includes a substrate, a light emitting element formed on the substrate and configured to emit light of different colors via a plurality of sub-pixels, and a partial color filter layer formed on a first subset of the plurality of sub-pixels configured to output at least two of the different colors.
    Type: Application
    Filed: December 23, 2022
    Publication date: July 6, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ho-Jin KIM, Han-Sun PARK, Pu-Reum KIM, Dong-Wook CHOI
  • Publication number: 20230217768
    Abstract: A display device including a plurality of pixels disposed on a substrate, wherein each pixel includes a first subpixel, a second subpixel adjacent to the first subpixel, and a third subpixel adjacent to the second subpixel. Further, each of the first subpixel and the third subpixel include a single light emitting diode corresponding to a single light emission region, and the second subpixel includes a first light emitting diode corresponding to a first sub-emission region, and a second light emitting diode corresponding to a second sub-emission region. The display device also includes a controller configured to control only the first light emitting diode of the second subpixel to emit light during a low gray level mode, and control the first light emitting diode and the second light emitting diode of the second subpixel to both emit light in a high gray level mode.
    Type: Application
    Filed: December 7, 2022
    Publication date: July 6, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Pu-Reum Kim
  • Publication number: 20230209898
    Abstract: A display apparatus includes a substrate including a plurality of sub-pixels; a transistor formed in each of the plurality of sub-pixels; an organic light emitting element formed in each of the plurality of sub-pixels; an encapsulation layer formed on the organic light emitting element; a reflective member disposed in a boundary region between the plurality of sub-pixels and formed inside the encapsulation layer; and a color filter layer disposed on the encapsulation layer.
    Type: Application
    Filed: October 31, 2022
    Publication date: June 29, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ho-Jin KIM, Han-Sun PARK, Pu-Reum KIM
  • Patent number: 10423022
    Abstract: A light shielding apparatus that may transmit or shield light by using a plurality of PDLC layers, a method of fabricating the light shielding apparatus, and a transparent display device including the light shielding apparatus are discussed. The light shielding apparatus can include first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and first and second polymer dispersed liquid crystal layers between the first electrode and the second electrode, wherein the first polymer dispersed liquid crystal layer includes first droplets having first liquid crystals, and the second polymer dispersed liquid crystal layer includes second droplets having second liquid crystals and first dichroic dyes.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: September 24, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Moon Sun Lee, Ji Young Ahn, Pu Reum Kim, Ki Han Kim
  • Patent number: 10345635
    Abstract: There are provided a light control device, a method for manufacturing the light control device, and a display device comprising the light control device. The light control device includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit including a droplet including a first liquid crystal and a polymer and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a polymer networked liquid crystal (PNLC) including a second liquid crystal, a coloring member, and a network.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: July 9, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Moon Sun Lee, Ji Young Ahn, Pu Reum Kim, Ki Han Kim
  • Patent number: 10317720
    Abstract: There are provided a light control apparatus, a method for manufacturing the light control apparatus, and a display apparatus including the light control apparatus. The light control apparatus includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit having a droplet including a liquid crystal and a polymer and configured as a polymer dispersed liquid crystal (PDLC) and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a guest-host liquid crystal (GHLC) including a liquid crystal and a coloring member.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: June 11, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Moon Sun Lee, Ji Young Ahn, Pu Reum Kim, Ki Han Kim
  • Patent number: 10228600
    Abstract: A light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a liquid crystal layer between the first electrode and the second electrode, the liquid crystal layer including cholesteric liquid crystals, wherein the cholesteric liquid crystals have a focal conic state in a light shielding mode in case where no voltage is applied, and have a homeotropic state in a transparent mode in case where a voltage is applied.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: March 12, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim, Seok Won Ji
  • Patent number: 9989798
    Abstract: A light controlling apparatus, a method of fabricating the light controlling apparatus, and a transparent display device including the light controlling apparatus are disclosed, in which light may be transmitted or shielded using a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer, where the guest-host liquid crystal layer includes dichroic dyes. The light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer between the first electrode and the second electrode, wherein the PDLC layer includes first liquid crystals having droplets, and the GHLC layer includes second liquid crystals and dichroic dyes.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: June 5, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim
  • Patent number: 9971222
    Abstract: A light controlling apparatus includes a first electrode on a first substrate; a first alignment film on the first electrode; a second electrode on a second substrate facing the first substrate; a second alignment film on the second electrode; and a guest-host liquid crystal layer having cholesteric liquid crystals and dichroic dyes between the first and second alignment films. The first and second electrodes provide a vertical electric field, and at least one of the first and second electrodes provides a horizontal electric field. The cholesteric liquid crystals have a homeotropic state when an electric field in a first direction is applied to the guest-host liquid crystal layer to realize a transparent mode. The cholesteric liquid crystals have a focal conic state when an electric field in a second direction is applied to realize a light shielding mode. A same state is maintained when no electric field is applied.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: May 15, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim, Seok Won Ji
  • Publication number: 20170261781
    Abstract: There are provided a light control apparatus, a method for manufacturing the light control apparatus, and a display apparatus including the light control apparatus. The light control apparatus includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit having a droplet including a liquid crystal and a polymer and configured as a polymer dispersed liquid crystal (PDLC) and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a guest-host liquid crystal (GHLC) including a liquid crystal and a coloring member.
    Type: Application
    Filed: September 4, 2015
    Publication date: September 14, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: Moon Sun LEE, Ji Young AHN, Pu Reum KIM, Ki Han KIM
  • Publication number: 20170261782
    Abstract: There are provided a light control device, a method for manufacturing the light control device, and a display device comprising the light control device. The light control device includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit including a droplet including a first liquid crystal and a polymer and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a polymer networked liquid crystal (PNLC) including a second liquid crystal, a coloring member, and a network.
    Type: Application
    Filed: September 15, 2015
    Publication date: September 14, 2017
    Applicant: LG Display Co., Ltd.
    Inventors: Moon Sun LEE, Ji Young AHN, Pu Reum KIM, Ki Han KIM
  • Publication number: 20160026026
    Abstract: A light controlling apparatus includes a first electrode on a first substrate; a first alignment film on the first electrode; a second electrode on a second substrate facing the first substrate; a second alignment film on the second electrode; and a guest-host liquid crystal layer having cholesteric liquid crystals and dichroic dyes between the first and second alignment films. The first and second electrodes provide a vertical electric field, and at least one of the first and second electrodes provides a horizontal electric field. The cholesteric liquid crystals have a homeotropic state when an electric field in a first direction is applied to the guest-host liquid crystal layer to realize a transparent mode. The cholesteric liquid crystals have a focal conic state when an electric field in a second direction is applied to realize a light shielding mode. A same state is maintained when no electric field is applied.
    Type: Application
    Filed: July 24, 2015
    Publication date: January 28, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim, Seok Won Ji
  • Publication number: 20150378189
    Abstract: A light controlling apparatus, a method of fabricating the light controlling apparatus, and a transparent display device including the light controlling apparatus are disclosed, in which light may be transmitted or shielded using a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer, where the guest-host liquid crystal layer includes dichroic dyes. The light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer between the first electrode and the second electrode, wherein the PDLC layer includes first liquid crystals having droplets, and the GHLC layer includes second liquid crystals and dichroic dyes.
    Type: Application
    Filed: June 23, 2015
    Publication date: December 31, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim
  • Publication number: 20150378205
    Abstract: A light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a liquid crystal layer between the first electrode and the second electrode, the liquid crystal layer including cholesteric liquid crystals, wherein the cholesteric liquid crystals have a focal conic state in a light shielding mode in case where no voltage is applied, and have a homeotropic state in a transparent mode in case where a voltage is applied.
    Type: Application
    Filed: June 30, 2015
    Publication date: December 31, 2015
    Applicant: LG Display Co., Ltd.
    Inventors: Ki Han Kim, Ji Young Ahn, Moon Sun Lee, Pu Reum Kim, Seok Won Ji
  • Publication number: 20150349028
    Abstract: A light shielding apparatus that may transmit or shield light by using a plurality of PDLC layers, a method of fabricating the light shielding apparatus, and a transparent display device including the light shielding apparatus are discussed. The light shielding apparatus can include first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and first and second polymer dispersed liquid crystal layers between the first electrode and the second electrode, wherein the first polymer dispersed liquid crystal layer includes first droplets having first liquid crystals, and the second polymer dispersed liquid crystal layer includes second droplets having second liquid crystals and first dichroic dyes.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 3, 2015
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Moon Sun LEE, Ji Young AHN, Pu Reum KIM, Ki Han KIM