Patents by Inventor Koog CHOI

Koog 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).

  • Liquid crystal display device
    Patent number: 12259621
    Abstract: A liquid crystal display device including a liquid crystal panel including a first substrate, a thin film transistor on the first substrate, an organic buffer layer between the first substrate and the thin film transistor, a second substrate, a color filter layer on the second substrate, and a liquid crystal layer between the first and second substrates, and a backlight unit below the liquid crystal panel. The second substrate is between the backlight unit and the first substrate.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: March 25, 2025
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Woon Kim, Koog Choi, Ji-Hoon Yu, Hye-Ji Jeon
  • LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20230205024
    Abstract: A liquid crystal display device including a liquid crystal panel including a first substrate, a thin film transistor on the first substrate, an organic buffer layer between the first substrate and the thin film transistor, a second substrate, a color filter layer on the second substrate, and a liquid crystal layer between the first and second substrates, and a backlight unit below the liquid crystal panel. The second substrate is between the backlight unit and the first substrate.
    Type: Application
    Filed: December 27, 2022
    Publication date: June 29, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sang-Woon KIM, Koog CHOI, Ji-Hoon YU, Hye-Ji JEON
  • System & method for controlling a process-performing apparatus in a semiconductor device-manufacturing process
    Patent number: 5940299
    Abstract: A control system of a semiconductor device manufacturing process is disclosed. The system includes a main host computer, host computers connected to the main host computer and process performing apparatuses connected to the host computers. The system checks the integrity of transferred operational instructions between the host computers and process performing apparatuses, in order to prevent errors in the manufacturing process. When the error is detected the system user is notified by audio signals or visual displays.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: August 17, 1999
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Sang-koog Choi, Jae-Kyung Lee, Sang-woon Kim