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:
Oct. 09, 2007
Filed:
Jan. 10, 2005
Robert Walters, Export, PA (US);
Jui-yi Tsai, Monroeville, PA (US);
Peter B. Mackenzie, Murrysville, PA (US);
Mark E. Thompson, Anaheim Hills, CA (US);
Robert Walters, Export, PA (US);
Jui-Yi Tsai, Monroeville, PA (US);
Peter B. MacKenzie, Murrysville, PA (US);
Mark E. Thompson, Anaheim Hills, CA (US);
The University of Southern California, Los Angeles, CA (US);
Universal Display Corporation, Ewing, NJ (US);
Abstract
The present invention relates to organic light emitting devices (OLEDs), and more specifically to phosphorescent organic materials used in such devices. More specifically, the present invention relates to emissive phosphorescent material which comprise at least one tridentate ligand bound to a metal center, wherein at least one of the bonds to the tridentate ligand is a carbon-metal bond.