Patents by Inventor Hee Gwon LEE

Hee Gwon LEE 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 including flexible printed circuit board and for detecting separation of the flexible printed circuit board
    Patent number: 11035908
    Abstract: A display device includes a display panel, a conductive layer disposed under the display panel, a first flexible printed circuit board including a first substrate portion having a side connected to the display panel, a bending portion extending from the first substrate portion, and a second substrate portion extending from the bending portion and disposed under the conductive layer. The second substrate portion includes a first sensing pattern. The display device further includes a coupling portion disposed between the second substrate portion and the conductive layer and coupling the second substrate portion and the conductive layer. The display device further includes a driver chip electrically connected to the first sensing pattern and configured to detect whether the coupling portion has been separated from either the second substrate portion or the conductive layer based on a capacitance that depends on a distance between the conductive layer and the first sensing pattern.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: June 15, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Gwon Lee, Sung Un Park
  • DISPLAY DEVICE INCLUDING FLEXIBLE PRINTED CIRCUIT BOARD AND FOR DETECTING SEPARATION OF THE FLEXIBLE PRINTED CIRCUIT BOARD
    Publication number: 20200249283
    Abstract: A display device includes a display panel, a conductive layer disposed under the display panel, a first flexible printed circuit board including a first substrate portion having a side connected to the display panel, a bending portion extending from the first substrate portion, and a second substrate portion extending from the bending portion and disposed under the conductive layer. The second substrate portion includes a first sensing pattern. The display device further includes a coupling portion disposed between the second substrate portion and the conductive layer and coupling the second substrate portion and the conductive layer. The display device further includes a driver chip electrically connected to the first sensing pattern and configured to detect whether the coupling portion has been separated from either the second substrate portion or the conductive layer based on a capacitance that depends on a distance between the conductive layer and the first sensing pattern.
    Type: Application
    Filed: April 1, 2020
    Publication date: August 6, 2020
    Inventors: Hee Gwon LEE, Sung Un PARK
  • Display device including flexible printed circuit board and for detecting separation of the flexible printed circuit board
    Patent number: 10656220
    Abstract: A display device includes a display panel, a conductive layer disposed under the display panel, a first flexible printed circuit board including a first substrate portion having a side connected to the display panel, a bending portion extending from the first substrate portion, and a second substrate portion extending from the bending portion and disposed under the conductive layer. The second substrate portion includes a first sensing pattern. The display device further includes a coupling portion disposed between the second substrate portion and the conductive layer and coupling the second substrate portion and the conductive layer. The display device further includes a driver chip electrically connected to the first sensing pattern and configured to detect whether the coupling portion has been separated from either the second substrate portion or the conductive layer based on a capacitance that depends on a distance between the conductive layer and the first sensing pattern.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Gwon Lee, Sung Un Park
  • DISPLAY DEVICE INCLUDING FLEXIBLE PRINTED CIRCUIT BOARD AND FOR DETECTING SEPARATION OF THE FLEXIBLE PRINTED CIRCUIT BOARD
    Publication number: 20190310302
    Abstract: A display device includes a display panel, a conductive layer disposed under the display panel, a first flexible printed circuit board including a first substrate portion having a side connected to the display panel, a bending portion extending from the first substrate portion, and a second substrate portion extending from the bending portion and disposed under the conductive layer. The second substrate portion includes a first sensing pattern. The display device further includes a coupling portion disposed between the second substrate portion and the conductive layer and coupling the second substrate portion and the conductive layer. The display device further includes a driver chip electrically connected to the first sensing pattern and configured to detect whether the coupling portion has been separated from either the second substrate portion or the conductive layer based on a capacitance that depends on a distance between the conductive layer and the first sensing pattern.
    Type: Application
    Filed: August 31, 2018
    Publication date: October 10, 2019
    Inventors: Hee Gwon LEE, Sung Un PARK