Patents by Inventor Keumdoo CHOI

Keumdoo 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: 20230328903
    Abstract: Disclosed in the present specification is a display device using semiconductor light emitting element, the device comprising: a display module including semiconductor light emitting element; a frame on which a plurality of the display modules is arranged; a first connection member which fixes the display module onto the frame on a rear surface of the display module, and which provides planar fluidity; and a second connection member having a magnet provided on a side surface of the display module, and applying attractive force to adjacent the display module. Therefore, provided in the present specification is a display device having a structure that is improved to minimize the gap between respective display modules.
    Type: Application
    Filed: July 21, 2020
    Publication date: October 12, 2023
    Applicant: LG ELECTRONICS INC.
    Inventors: Keumdoo CHOI, Sangmin BAEK
  • Patent number: 11650443
    Abstract: A display device is provided. The display device according to the present disclosure includes: a display panel; a frame positioned behind the display panel; a substrate having an elongated shape and coupled to the frame; an optical assembly mounted on the substrate and configured to provide light to the display panel; and a plurality of holders coupling the substrate to the frame, wherein the plurality of holders includes: a first holder disposed adjacent to a first elongated side of the substrate; and a second holder disposed adjacent to a second elongated side of the substrate opposite the first elongated side and positioned opposite to the first holder, wherein the first holder and the second holder are configured to secure the substrate.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: May 16, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangmin Baek, Inhwi Lee, Jaehun Kim, Keumdoo Choi
  • Publication number: 20220365387
    Abstract: A display apparatus according to an embodiment of the present invention comprises: a display panel; a case top-down assembly covering a lower area of the display panel; a middle cabinet in which the display panel is mounted, and a cover bottom coupled to the case top-down assembly and the middle cabinet. The middle cabinet comprises a first mounting unit overlapping a partial area at a first long side of the display panel; and a second mounting unit overlapping a partial area at a first short side of the display panel. Ends of the first mounting unit and the second mounting unit overlap each other in a first overlapping area. The display apparatus of the present invention can be linked with an artificial intelligence module, a robot, an augmented reality (AR) device, a virtual reality (VR) device, a device related to a 5 G service, and the like.
    Type: Application
    Filed: October 28, 2019
    Publication date: November 17, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Sangmin BAEK, Keumdoo CHOI, Junseok TAK
  • Publication number: 20210333612
    Abstract: A display device is provided. The display device according to the present disclosure includes: a display panel; a frame positioned behind the display panel; a substrate having an elongated shape and coupled to the frame; an optical assembly mounted on the substrate and configured to provide light to the display panel; and a plurality of holders coupling the substrate to the frame, wherein the plurality of holders includes: a first holder disposed adjacent to a first elongated side of the substrate; and a second holder disposed adjacent to a second elongated side of the substrate opposite the first elongated side and positioned opposite to the first holder, wherein the first holder and the second holder are configured to secure the substrate.
    Type: Application
    Filed: March 26, 2021
    Publication date: October 28, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: Sangmin BAEK, Inhwi LEE, Jaehun KIM, Keumdoo CHOI