Patents by Inventor Inae Choi

Inae Choi 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: 20240260420
    Abstract: A display apparatus can include a plurality of subpixels disposed on a substrate; a pattern portion disposed on the substrate, the pattern portion forming a concave area between at least two subpixels among the plurality of subpixels; and a reflective pattern partially overlapping with a portion of the pattern portion. Also, the plurality of subpixels include a light emission area and a non-light emission area adjacent to the light emission area, the reflective pattern being disposed in the non-light emission area, and the non-light emission area includes a first void located between the light emission area and the reflective pattern.
    Type: Application
    Filed: November 22, 2023
    Publication date: August 1, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Inae CHOI, SeHong PARK, Wonrae KIM, Sejong SEONG, SeoHyun NAM
  • Publication number: 20240251623
    Abstract: Discussed is a display apparatus including at least one pixel on a substrate and having a plurality of subpixels, a pattern portion disposed on the substrate and formed to be concave between the plurality of subpixels, and a reflective portion on the pattern portion. The plurality of subpixels include a first layer having a plurality of concave portions adjacent to the reflective portion and an organic light emitting layer having a lower organic layer on the first layer and a light emitting layer on the lower organic layer, and light efficiency of light emitted from the light emitting layer and output to the substrate through a concave portion of the plurality of concave portions is proportional to a thickness change value of the lower organic layer.
    Type: Application
    Filed: November 28, 2023
    Publication date: July 25, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: SeoHyun NAM, SeHong PARK, Wonrae KIM, Inae CHOI, Sejong SEONG
  • Publication number: 20240251644
    Abstract: A display apparatus is provided, which may improve light extraction efficiency of light emitted from a light emitting element layer. The display apparatus comprises a substrate having a plurality of pixels having a plurality of subpixels, a pattern portion disposed on the substrate and formed to be concave between the plurality of subpixels, and a reflective portion on the pattern portion, wherein the plurality of subpixels include an overcoat layer having a first layer on the substrate and a light extraction portion adjacent to the reflective portion, having a plurality of concave portions formed on the first layer, an optimal radius RBEST of the concave portion satisfies RBEST=0.15 sin 4?(AR+0.05)+1.5noc+0.5m?0.59, wherein ‘?’ is a circumferential rate, AR is an aspect ratio of the concave portion, ‘noc’ is a refractive index of the first layer, and ‘m’ is a variable value according to a process of forming the plurality of concave portions.
    Type: Application
    Filed: November 15, 2023
    Publication date: July 25, 2024
    Inventors: SeHong PARK, Wonrae KIM, Inae CHOI, Sejong SEONG, SeoHyun NAM
  • Publication number: 20240224742
    Abstract: A display apparatus is provided, which may improve light extraction efficiency of light emitted from a light emitting element layer. The display apparatus comprises a substrate having a plurality of pixels having a plurality of subpixels, a pattern portion disposed on the substrate and formed to be concave between the plurality of subpixels, and a reflective portion on the pattern portion, wherein the plurality of subpixels include a light emission area and a non-light emission area adjacent to the light emission area, and a light extraction portion that overlaps the light emission area and includes a plurality of concave portions, and the reflective portion is adjacent to the light extraction portion in the non-light emission area and is disposed to be spaced apart from the light emission area.
    Type: Application
    Filed: September 26, 2023
    Publication date: July 4, 2024
    Inventors: SeoHyun NAM, SeHong PARK, Wonrae KIM, Inae CHOI, Sejong SEONG
  • Publication number: 20240224759
    Abstract: Discussed in an organic light emitting display apparatus, which can include a plurality of pixels on a substrate, each pixel including a plurality of subpixels, and each of the plurality of subpixels having an emission region, a planarization layer including a light extraction pattern, the light extraction pattern disposed at the emission region of each of the plurality of subpixels and including a plurality of concave portions; and a light emitting device layer on the light extraction pattern of each of the plurality of subpixels. The emission region of each of the plurality of subpixels includes a reference point disposed at a concave portion of the plurality of concave portions. The light extraction pattern of each of the plurality of subpixels has a rotation angle with respect to the reference point.
    Type: Application
    Filed: December 19, 2023
    Publication date: July 4, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: SeHong PARK, Wonrae KIM, WonSik LEE, Inae CHOI, Sejong SEONG
  • Publication number: 20240215405
    Abstract: A display apparatus is discussed, which can improve light extraction efficiency of light emitted from a light emitting element layer. In one example, the display apparatus includes a substrate having a plurality of pixels with a plurality of subpixels, a pattern portion disposed on the substrate and formed to be concave between the plurality of subpixels, a reflective portion on the pattern portion, and a plurality of lines for driving the plurality of subpixels. The plurality of subpixels include a light emission area and a non-light emission area adjacent to the light emission area, and the plurality of lines are disposed in the non-light emission area. Further, the pattern portion is provided to surround the light emission area, and at least one of the plurality of lines partially overlaps the pattern portion.
    Type: Application
    Filed: December 27, 2023
    Publication date: June 27, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Sejong Seong, KyungMin Kim, Hyemin Park, SeHong Park, Wonrae Kim, Inae Choi, SeoHyun Nam
  • Publication number: 20240215404
    Abstract: A display apparatus is provided, which can improve light extraction efficiency of light emitted from a light emitting element layer. In one example, the display apparatus includes a substrate having a plurality of pixels with a plurality of subpixels, a pattern portion disposed on the substrate and formed to be concave between the plurality of subpixels, a reflective portion on the pattern portion, and a plurality of lines for driving the plurality of subpixels. The plurality of subpixels include a light emission area and a non-light emission area adjacent to the light emission area, and the plurality of lines are disposed in the non-light emission area. Further, the pattern portion is provided to surround the light emission area, and at least one of the plurality of lines partially overlaps the pattern portion.
    Type: Application
    Filed: September 22, 2023
    Publication date: June 27, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Sejong SEONG, SeHong PARK, Wonrae KIM, Inae CHOI, SeoHyun NAM
  • Publication number: 20240215406
    Abstract: A display apparatus is provided, which may improve light extraction efficiency of light emitted from a light emitting element layer. The display apparatus comprises a substrate having a plurality of pixels having a plurality of subpixels, a pattern portion disposed on the substrate and formed to be concave between the plurality of subpixels, and a reflective portion on the pattern portion, wherein the plurality of subpixels include a light emission area and a non-light emission area adjacent to the light emission area, and the pattern portion is disposed in the periphery of the non-light emission area.
    Type: Application
    Filed: September 6, 2023
    Publication date: June 27, 2024
    Inventors: Sejong SEONG, SeHong PARK, Wonrae KIM, Inae CHOI, SeoHyun NAM
  • Patent number: 11997906
    Abstract: A light emitting display device comprises a substrate having subpixel areas, a plurality of first electrodes, each of the first electrodes in a corresponding one of the subpixel areas, a bank covering an edge portion of each of the first electrodes, the bank, a disconnection portion disposed at boundary areas between the subpixel areas, an undercut area in the disconnection portion, the undercut area formed under an end of the bank that extends past an end of a first electrode from the plurality of first electrodes, a light emitting element layer including a first portion and a second portion, the first portion disposed on the first electrode, the bank, and electrically connected to the first electrode, and the second portion disposed in the disconnection portion but is not electrically connected to the first electrode, and a second electrode on the light emitting element layer.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: May 28, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: KyungEon Lee, JongSung Kim, Inae Choi
  • Publication number: 20230217790
    Abstract: A display device and a method for manufacturing the same capable of mitigating light loss by comprising a substrate, an overcoat layer disposed on the substrate, a first electrode disposed on the overcoat layer, a reflective layer disposed on the overcoat layer to be spaced apart from the first electrode, a bank layer disposed on the first electrode and the reflective layer to cover en edge of the first electrode, a light emitting layer disposed on the first electrode, and a second electrode disposed on the light emitting layer and contacting an end of the reflective layer.
    Type: Application
    Filed: December 19, 2022
    Publication date: July 6, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Inae CHOI, JongSung KIM
  • Publication number: 20220199708
    Abstract: A light emitting display device comprises a substrate having subpixel areas, a plurality of first electrodes, each of the first electrodes in a corresponding one of the subpixel areas, a bank covering an edge portion of each of the first electrodes, the bank , a disconnection portion disposed at boundary areas between the subpixel areas, an undercut area in the disconnection portion, the undercut area formed under an end of the bank that extends past an end of a first electrode from the plurality of first electrodes , a light emitting element layer including a first portion and a second portion, the first portion disposed on the first electrode, the bank, and electrically connected to the first electrode, and the second portion disposed in the disconnection portion but is not electrically connected to the first electrode, and a second electrode on the light emitting element layer.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 23, 2022
    Inventors: KyungEon Lee, JongSung Kim, Inae Choi