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. 29, 2000
Filed:
Oct. 09, 1997
Mark Thompson, Anaheim, CA (US);
Yujian You, South Pasadena, CA (US);
Nicos A Petasis, Hacienda Heights, CA (US);
Paul E Burrows, Princeton Junction, NJ (US);
Stephen R Forrest, Princeton, NJ (US);
The University of Southern California, Los Angeles, CA (US);
The Trustees of Princeton University, Princeton, NJ (US);
Abstract
Organic light emitting devices are disclosed which are comprised of a heterostructure for producing electoluminescence wherein the heterostructure is comprised of an emissive layer containing a dopant compound selected from the class of azlactone-related compounds having the chemical structure as represented by formula I: ##STR1## where R is hydrogen or a donor or acceptor group relative to hydrogen; R'=alkyl or substituted or unsubstituted aryl;