Patents by Inventor David Z. Li

David Z. Li 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).

  • Host materials for phosphorescent OLEDs
    Patent number: 8409729
    Abstract: Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: April 2, 2013
    Assignee: Universal Display Corporation
    Inventors: Lichang Zeng, Alexey B. Dyatkin, Gregg Kottas, Chuanjun Xia, David Z. Li
  • HOST MATERIALS FOR PHOSPHORESCENT OLEDS
    Publication number: 20130026909
    Abstract: Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Applicant: Universal Display Corporation
    Inventors: Lichang Zeng, Alexey B. Dyatkin, Gregg Kottas, Chuanjun Xia, David Z. Li