Patents by Inventor Ho Sung Chin

Ho Sung Chin 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).

  • Prism sheet of liquid crystal display device and backlight unit using the same
    Patent number: 7252428
    Abstract: A prism sheet of an LCD includes a body part made of a transparent resin material and a plurality of polypyramid-shaped optical unit structures formed in a intaglio type on the body part. The plurality of optical unit structures have intaglio-type polypyramid shapes in an inside of their polygonal structure. A center of the intaglio portion corresponds to a vertex of the polypyramid, thereby forming a point.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: August 7, 2007
    Assignee: LG.Electronics, Inc.
    Inventors: Sang Gou Lee, Chang Jong Kim, Young Gun Kim, Yun Ho Choi, Ho Sung Chin, Bong Taek Hong, Kab Jin Hwang, Ung Sang Lee, Chul Young Kim
  • Prism sheet of liquid crystal display and back light unit using the same
    Publication number: 20060039073
    Abstract: A prism sheet of a liquid crystal display (LCD) includes a body part made of a transparent resin material; and a plurality of intaglio-type optical unit structures arranged on the body part, each of the optical unit structures having an intaglio-type or a relief type polyhedron inside of a rectangular structure thereof, a center of the intaglio portion forming a line, not a dot.
    Type: Application
    Filed: December 30, 2004
    Publication date: February 23, 2006
    Inventors: Sang Gon Lee, Chang Jong Kim, Young Gun Kim, Yun Ho Choi, Ho Sung Chin, Boug Taek Hong, Kab Jin Hwang, Ung Sang Lee, Chul Young Kim