Patents by Inventor Kee Tae Yoo

Kee Tae Yoo 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).

  • Backlight unit including light emitting diodes and liquid crystal display device including the same
    Patent number: 8339541
    Abstract: A backlight unit for a liquid crystal display device includes a plurality of white LEDs on a PCB, along a length direction of the PCB, and emitting white lights, the plurality of white LEDs including first and second LEDs alternately arranged; and a plurality of optical sheets on a path of the white lights from the plurality of white LEDs to a liquid crystal panel, wherein the white light from the first LED and the white light from the second LED are substantially complementary in color to each other with respect to a target white light.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: December 25, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Koo-Hwa Lee, Kyeong-Kun Jang, Pu-Jin Kim, Kee-Tae Yoo
  • Backlight unit and liquid crystal display device including the same
    Patent number: 8328379
    Abstract: A backlight for a liquid crystal display device includes a first plurality of light emitting diodes having a first luminance and a second plurality of light emitting diodes having a second luminance, wherein at least the first and second plurality of light emitting diodes are interspersed with each other to provide an average luminance at or substantially near a predetermined target value of luminance that is consistent across the liquid crystal display device.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: December 11, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jong-Hyeok Kim, Kee Tae Yoo
  • Backlight unit and liquid crystal display device including the same
    Publication number: 20100008071
    Abstract: A backlight for a liquid crystal display device includes a first plurality of light emitting diodes having a first luminance and a second plurality of light emitting diodes having a second luminance, wherein at least the first and second plurality of light emitting diodes are interspersed with each other to provide an average luminance at or substantially near a predetermined target value of luminance that is consistent across the liquid crystal display device.
    Type: Application
    Filed: December 23, 2008
    Publication date: January 14, 2010
    Applicant: LF DISPLAY CO., LTD.
    Inventors: Jong-Hyeok Kim, Kee-Tae Yoo
  • Backlight unit including light emitting diodes and liquid crystal display device including the same
    Publication number: 20090284682
    Abstract: A backlight unit for a liquid crystal display device includes a plurality of white LEDs on a PCB, along a length direction of the PCB, and emitting white lights, the plurality of white LEDs including first and second LEDs alternately arranged; and a plurality of optical sheets on a path of the white lights from the plurality of white LEDs to a liquid crystal panel, wherein the white light from the first LED and the white light from the second LED are substantially complementary in color to each other with respect to a target white light.
    Type: Application
    Filed: December 15, 2008
    Publication date: November 19, 2009
    Inventors: Koo-Hwa Lee, Kyeong-Kun Jang, Pu-Jin Kim, Kee-Tae Yoo