Patents by Inventor Jai Sun KYOUNG

Jai Sun KYOUNG 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).

  • DISPLAY DEVICE
    Publication number: 20240088158
    Abstract: A display device includes: a substrate; a polycrystalline silicon film on the substrate; and a first buffer film between the substrate and the polycrystalline silicon film and having one surface contacting the polycrystalline silicon film and another surface opposite to the one surface, wherein the one surface of the first buffer film has a first root mean square (RMS) roughness range, and the first RMS roughness range is 1.5 nm or less.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 14, 2024
    Inventors: Ki Hyun KIM, Young Gil PARK, Jin Suk LEE, Jai Sun KYOUNG, Sug Woo JUNG
  • Display device
    Patent number: 11817458
    Abstract: A display device includes: a substrate; a polycrystalline silicon film on the substrate; and a first buffer film between the substrate and the polycrystalline silicon film and having one surface contacting the polycrystalline silicon film and another surface opposite to the one surface, wherein the one surface of the first buffer film has a first root mean square (RMS) roughness range, and the first RMS roughness range is 1.5 nm or less.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: November 14, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Hyun Kim, Young Gil Park, Jin Suk Lee, Jai Sun Kyoung, Sug Woo Jung
  • DISPLAY DEVICE
    Publication number: 20210175258
    Abstract: A display device includes: a substrate; a polycrystalline silicon film on the substrate; and a first buffer film between the substrate and the polycrystalline silicon film and having one surface contacting the polycrystalline silicon film and another surface opposite to the one surface, wherein the one surface of the first buffer film has a first root mean square (RMS) roughness range, and the first RMS roughness range is 1.5 nm or less.
    Type: Application
    Filed: July 21, 2020
    Publication date: June 10, 2021
    Inventors: Ki Hyun KIM, Young Gil PARK, Jin Suk LEE, Jai Sun KYOUNG, Sug Woo JUNG