Patents by Inventor Min Wha Choo

Min Wha Choo 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 and liquid crystal display device having the same for improving image quality
    Patent number: 8411229
    Abstract: Provided is a backlight unit with an extending portion that extends from one of a plurality of sheets included in an optical sheet. The optical sheet is on a light guide plate, and a light emitting diode chip is disposed at a side of the light guide plate. A portion of a flexible printed circuit board, to which the light emitting diode chip is mounted, overlaps a portion of the light guide plate. The extending portion overlaps the portion of the flexible printed circuit board. Thus, the occurrence of lines of light due to light progressing between the light guide plate and the flexible printed circuit board can be prevented, thereby obtaining uniform brightness and improving image quality.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: April 2, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Min Wha Choo, Sung Han Jung