Patents by Inventor Chungho Yoo

Chungho 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 for display device
    Patent number: 9057912
    Abstract: The present disclosure relates to a backlight unit for flat panel display device. The backlight unit according to the present disclosure comprises: a plurality of light sources; a cover bottom housing the plurality of light source; a PCB attached at outer surface of the cover bottom; an LED installed at back side of the PCB; and an LED hole formed at the cover bottom and introducing a light from the LED to the light sources. Supplying photoelectrons to all fluorescent light sources of the direct type backlight unit with an LED, the fluorescent light sources have an enhanced initial lighting property and can be turned on quickly without a time delay.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: June 16, 2015
    Assignee: LG Display Co., Ltd.
    Inventor: Chungho Yoo
  • BACKLIGHT UNIT FOR DISPLAY DEVICE
    Publication number: 20110133674
    Abstract: The present disclosure relates to a backlight unit for flat panel display device. The backlight unit according to the present disclosure comprises: a plurality of light sources; a cover bottom housing the plurality of light source; a PCB attached at outer surface of the cover bottom; an LED installed at back side of the PCB; and an LED hole formed at the cover bottom and introducing a light from the LED to the light sources. Supplying photoelectrons to all fluorescent light sources of the direct type backlight unit with an LED, the fluorescent light sources have an enhanced initial lighting property and can be turned on quickly without a time delay.
    Type: Application
    Filed: May 21, 2010
    Publication date: June 9, 2011
    Inventor: Chungho Yoo