Patents by Inventor Kyong Hak Seo

Kyong Hak Seo 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).

  • Back light unit
    Patent number: 7632003
    Abstract: A back light unit, in which bright lines produced from point light sources, light emitting diodes, in an oblique direction are removed, so that brightness can be uniformly maintained at a liquid crystal panel. The back light unit includes a prism light guide plate, light emitting diodes provided on one side of the prism light guide plate, and a bright-line dead section provided to the prism light guide plate so as to uniformly scatter light of each light condensing section generated by light emitted from the light emitting diodes, to prevent a spectrum of the light in a specific direction, and to prevent bright lines from being produced.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: December 15, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Heon Noh, Dong Seob Jang, Seong Ho Youn, Sun Gil Kim, Hye Eun Park, Yong Joon Choi, Kyong Hak Seo
  • Back light unit
    Publication number: 20080112185
    Abstract: A back light unit, in which bright lines produced from point light sources, light emitting diodes, in an oblique direction are removed, so that brightness can be uniformly maintained at a liquid crystal panel. The back light unit includes a prism light guide plate, light emitting diodes provided on one side of the prism light guide plate, and a bright-line dead section provided to the prism light guide plate so as to uniformly scatter light of each light condensing section generated by light emitted from the light emitting diodes, to prevent a spectrum of the light in a specific direction, and to prevent bright lines from being produced.
    Type: Application
    Filed: September 7, 2007
    Publication date: May 15, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jae Heon Noh, Dong Seob Jang, Seong Ho Youn, Sun Gil Kim, Hye Eun Park, Yong Joon Choi, Kyong Hak Seo