Patents by Inventor Jai-Sang Yoon

Jai-Sang Yoon 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).

  • ORGANOMETALLIC COMPLEX FOR ORGANIC LIGHT-EMITTING LAYER AND ORGANIC LIGHT-EMITTING DIODE USING THE SAME
    Publication number: 20070212569
    Abstract: An organometallic complex for an organic light-emitting layer and an organic light-emitting diode are provided. A naphthalene derivative as a ligand is introduced to the organometallic complex. The organic light-emitting diode uses the organometallic complex as a phosphorescent host material. The organic light-emitting diode exhibits high current efficiency, high power efficiency and long lifetime when compared to conventional devices using BAlq.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 13, 2007
    Inventors: Jong-Tae Je, Dong-Soo Lim, Seon-Keun Yoo, Jai-Sang Yoon