The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2015
Filed:
Sep. 16, 2013
Universal Display Corporation, Ewing, NJ (US);
Bin Ma, Plainsboro, NJ (US);
Edward Barron, Hamilton, NJ (US);
Alan DeAngelis, Pennington, NJ (US);
Walter Yeager, Yardley, PA (US);
Chuanjun Xia, Lawrenceville, NJ (US);
Kwang-Ohk Cheon, Holland, PA (US);
Scott Beers, Flemington, NJ (US);
Michael S. Weaver, Princeton, NJ (US);
Universal Display Corporation, Ewing, NJ (US);
Abstract
Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. Iridium complexes containing aza-benzo fused ligands in which an aryl group is conjugated to the aza ring of the specific aza-dibenzofuran ring system results in the formation of yellow phosphorescent compounds with superior device stability and efficiency. These complexes are useful as light emitters when incorporated into OLEDs.