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. 15, 2013
Filed:
Nov. 05, 2008
Brian D'andrade, Westampton, NJ (US);
Peter B. Mackenzie, Kingsport, TN (US);
Michael S. Weaver, Princeton, NJ (US);
Julia J. Brown, Yardley, PA (US);
Brian D'Andrade, Westampton, NJ (US);
Peter B. Mackenzie, Kingsport, TN (US);
Michael S. Weaver, Princeton, NJ (US);
Julia J. Brown, Yardley, PA (US);
Universal Display Corporation, Ewing, NJ (US);
Abstract
Novel combination of materials and device architectures for organic light emitting devices are provided. In some aspects, specific charge carriers and solid state considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, emitter purity is a feature that may result in devices having unexpectedly long lifetime. In some aspects, structural and optical considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, an emissive layer including an organic phosphorescent emissive dopant and an organic carbazole host material results in devices having an unexpectedly long lifetime.