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:
Jun. 30, 2009
Filed:
May. 06, 2008
Sergey Lamansky, Maplewood, MN (US);
Mark E. Thompson, Anaheim, CA (US);
Vadim Adamovich, Los Angeles, CA (US);
Peter I. Djurovich, Long Beach, CA (US);
Chihaya Adachi, Hokkaido, JP;
Marc A. Baldo, Princeton, NJ (US);
Stephen R. Forrest, Princeton, NJ (US);
Raymond Kwong, Plainsboro, NJ (US);
Sergey Lamansky, Maplewood, MN (US);
Mark E. Thompson, Anaheim, CA (US);
Vadim Adamovich, Los Angeles, CA (US);
Peter I. Djurovich, Long Beach, CA (US);
Chihaya Adachi, Hokkaido, JP;
Marc A. Baldo, Princeton, NJ (US);
Stephen R. Forrest, Princeton, NJ (US);
Raymond Kwong, Plainsboro, NJ (US);
The Trustees of Princeton University, Princeton, NJ (US);
The University of Southern California, Los Angeles, CA (US);
Universal Display Corporation, Ewing, NJ (US);
Abstract
Emissive phosphorescent organometallic compounds are described that produce improved electroluminescence, particularly in the blue region of the visible spectrum. Organic light emitting devices employing such emissive phosphorescent organometallic compounds are also described. Also described is an organic light emitting layer including a host material having a lowest triplet excited state having a decay rate of less than about 1 per second; a guest material dispersed in the host material, the guest material having a lowest triplet excited state having a radiative decay rate of greater than about 1×10or about 1×10per second and wherein the energy level of the lowest triplet excited state of the host material is lower than the energy level of the lowest triplet excited state of the guest material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile