Patents by Inventor Ching-Shian Yeb

Ching-Shian Yeb 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).

  • Light emitting device having a patterned substrate and the method thereof
    Publication number: 20080067916
    Abstract: This disclosure provides a light-emitting device including a patterned substrate and the manufacturing method thereof. The patterned substrate has a plurality of depressions and/or extrusions for scattering light emitted from a light-emitting layer. Each of the plurality of depressions and/or extrusions comprises a top portion, a bottom portion, and a sidewall portion enclosing the top portion and the bottom portion, and at least part of the sidewall portion comprises a curve. In a preferred embodiment, the light-emitting device further comprises a rough surface formed on at least one of the top portion, the bottom portion, and the sidewall portion.
    Type: Application
    Filed: July 30, 2007
    Publication date: March 20, 2008
    Applicant: EPISTAR CORPORATION
    Inventors: Ta-Cheng Hsu, Ya-Lan Yang, Ying-Yong Su, Ching-Shian Yeb, Chao-Shun Huang, Ya-Ju Lee