Patents by Inventor Hyeona Kim

Hyeona 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: 20240008310
    Abstract: Provided is an organic light emitting display device including a light emitting element, a driving transistor configured to provide a driving current to the light emitting element and including a first oxide semiconductor layer and a first gate electrode on disposed the first oxide semiconductor layer, a first light blocking layer overlapping the first oxide semiconductor layer under the first oxide semiconductor layer, and at least one insulating layer disposed between the first light blocking layer and the first gate electrode and made of a hydrogen-free silicon nitride material. Accordingly, it is possible to increase an S-factor of the driving transistor using the oxide semiconductor layer and secure performance.
    Type: Application
    Filed: June 23, 2023
    Publication date: January 4, 2024
    Inventors: Bokyoung Lee, Yongil Kim, Hyeona Kim
  • Publication number: 20230071206
    Abstract: An electroluminescent display device includes a substrate having a display area surrounding a through-hole, and a non-display area disposed between the display area and the through-hole, a thin-film transistor disposed on an upper portion of the display area and a light-emitting element connected to the thin-film transistor, a plurality of insulating layers disposed between the substrate and the thin-film transistor, a planarization layer disposed between the thin-film transistor and the light-emitting element, and at least one anti-connection part disposed in the non-display area and including the plurality of insulating layers and the planarization layer, in which the planarization layer and the plurality of insulating layers, which constitute the anti-connection part, and each of the planarization layer and the plurality of insulating layers has an undercut shape in which a bottom surface is narrower than a top surface, so that the light-emitting part of the light-emitting element is disconnected in the th
    Type: Application
    Filed: August 4, 2022
    Publication date: March 9, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seungho BANG, Jonghan PARK, Hyeona KIM, Bokyoung LEE, JungHo BANG
  • Patent number: 11578018
    Abstract: An integrated process is provided for producing benzene, toluene, and/or xylene and hydrogen from shale gas under the feeding of carbon dioxide. The integrated process for producing an aromatic compound and hydrogen can efficiently and continuously produce high value-added aromatic compounds and hydrogen without the need to separate methane from shale gas through cryogenic distillation.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: February 14, 2023
    Inventors: Jinwon Lee, Wonho Jung, Do Heui Kim, Kyoung-Su Ha, Woojae Kim, Seulah Lee, Hyeona Kim