Patents by Inventor Jee Hyun Yang

Jee Hyun Yang 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).

  • Optical sheet and display device including the same
    Patent number: 7690820
    Abstract: An optical sheet includes a substrate having rear and front surfaces, a micro-lens-array on the front surface of the substrate, the micro-lens-array including a plurality of micro-lenses, a plurality of protrusions spaced apart from each other on the rear surface of the substrate, and an intercepting reflector layer on the protrusions.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: April 6, 2010
    Assignee: Cheil Industries, Inc.
    Inventors: Kyung Joon Lee, Seung Man Chio, Jee Hyun Yang, Jin Hyuk Kwon
  • Optical sheet and display device including the same
    Publication number: 20080192484
    Abstract: An optical sheet includes a substrate having rear and front surfaces, a micro-lens-array on the front surface of the substrate, the micro-lens-array including a plurality of micro-lenses, a plurality of protrusions spaced apart from each other on the rear surface of the substrate, and an intercepting reflector layer on the protrusions.
    Type: Application
    Filed: December 28, 2007
    Publication date: August 14, 2008
    Inventors: Kyung Joon Lee, Seung Man Chio, Jee Hyun Yang, Jin Hyuk Kwon