Patents by Inventor Chien-Hua Yuan

Chien-Hua Yuan 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).

  • Publication number: 20060022579
    Abstract: An organic light emitting diode display panel element and a method for manufacturing the same are provided. The element comprises a substrate, a conductive wire layer, a protective layer, an organic light emitting diode structure, and a package body. It first makes the conductive wire layer on the substrate, then coats protective glue on a display area and a non-display area on the substrate, evaporates the organic light emitting diode structure on the display area on the substrate and connects it to the conductive wire layer (connection with electricity conductive ability), and packages the organic light emitting diode structure on the substrate. Therefore, twice protective glue coating process is not needed, it is easy to process the coating process, and the protective glue is more adhesive to the substrate, thus reducing process steps and processing time, meanwhile reducing process expenses.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 2, 2006
    Inventors: Ling-Yi Wang, Chih-Hung Yeh, Chien-Hua Yuan, Yu-Chun Tseng
  • Patent number: 5792813
    Abstract: A fluorescent polymer having the moiety ##STR1## is disclosed. R.sub.1 and R.sub.2 are H.sub.1 alkyl, or aromatic. R.sub.3, R.sub.4, and R.sub.5 are aromatic. A preferred fluorescent composition may be formed by combining the fluorescent polymer with a second polymer, such as polystyrene or polysilystyrene.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: August 11, 1998
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Chien-Hua Yuan, Robert C. West
  • Patent number: 5644013
    Abstract: A fluorescent polymer having the moiety ##STR1## is disclosed. R.sub.1 and R.sub.2 are H.sub.1 alkyl, or aromatic. R.sub.3, R.sub.4, and R.sub.5 are aromatic. A preferred fluorescent composition may be formed by combining the fluorescent polymer with a second polymer, such as polystyrene or polysilystyrene.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: July 1, 1997
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Chien-Hua Yuan, Robert C. West