Patents by Inventor Hoon-Soo Ha

Hoon-Soo Ha 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 liquid crystal display
    Patent number: 7278773
    Abstract: A backlight unit for a liquid crystal display device includes a lamp, a lamp housing surrounding the lamp with an opening, a prism light guide plate having a first side corresponding to the opening and having prisms at a lower surface thereof, the prism light guide plate including a first portion of an even surface at the lower surface adjacent to the lamp, and a reflector opposite the lower surface of the prism light guide plate.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: October 9, 2007
    Assignee: LG Philips LCD Co., Ltd.
    Inventor: Hoon-Soo Ha
  • Backlight unit for liquid crystal display
    Publication number: 20050073828
    Abstract: A backlight unit for a liquid crystal display device includes a lamp, a lamp housing surrounding the lamp with an opening, a prism light guide plate having a first side corresponding to the opening and having prisms at a lower surface thereof, the prism light guide plate including a first portion of an even surface at the lower surface adjacent to the lamp, and a reflector opposite the lower surface of the prism light guide plate.
    Type: Application
    Filed: October 1, 2004
    Publication date: April 7, 2005
    Inventor: Hoon-Soo Ha