Patents by Inventor Chee Young Kim

Chee Young 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).

  • Apparatus for driving a light emitting diode
    Patent number: 8421370
    Abstract: An apparatus for driving a light emitting diode (LED) comprises: an LED unit configured as a plurality of LEDs are serially connected to each other; a rated current providing unit connected to one end of the LED unit, for providing a current to the LED unit under control of a controller; a voltage dividing unit connected between another end of the LED unit and another end of the rated current providing unit; and a voltage measuring unit connected to the LED unit in parallel, for measuring a voltage applied to the LED unit.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: April 16, 2013
    Assignee: LG Electronics Inc.
    Inventor: Chee-Young Kim
  • APPARATUS FOR DRIVING A LIGHT EMITTING DIODE
    Publication number: 20110012520
    Abstract: An apparatus for driving a light emitting diode (LED) comprises: an LED unit configured as a plurality of LEDs are serially connected to each other; a rated current providing unit connected to one end of the LED unit, for providing a current to the LED unit under control of a controller; a voltage dividing unit connected between another end of the LED unit and another end of the rated current providing unit; and a voltage measuring unit connected to the LED unit in parallel, for measuring a voltage applied to the LED unit.
    Type: Application
    Filed: February 5, 2008
    Publication date: January 20, 2011
    Applicant: LG ELECTRONICS INC.
    Inventor: Chee-Young Kim
  • Position sensible liquid crystal display device
    Patent number: 6191828
    Abstract: A position sensible liquid crystal display device includes a first substrate having a plurality of scanning lines, data lines, thin film transistors and pixel, and a second substrate having a plurality of first lines formed along the scanning lines and a plurality of second lines formed along the data lines, for position sensing. The black matrix is used as the position sensor input device.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: February 20, 2001
    Assignee: LG Electronics Inc.
    Inventors: Chee Young Kim, Jun Hee Kim, Young Soo Ahm
  • Position sensible liquid crystal display device
    Patent number: 5963277
    Abstract: A position sensible liquid crystal display device includes a first substrate having a plurality of scanning lines, data lines, thin film transistors and pixels, and a second substrate having a plurality of first lines formed along the scanning lines and a plurality of second lines formed along the data lines, for position sensing. The black matrix is used as the position sensor input device.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: October 5, 1999
    Assignee: LG Electronics Inc.
    Inventors: Chee Young Kim, Jun Hee Kim, Young Soo Ahn