USH2084HExpiredUtilityPatentIndex 67

Pentacene derivatives as red emitters in organic light emitting devices

Assignee: US NAVYPriority: Dec 16, 1999Filed: Dec 16, 1999Granted: Oct 7, 2003

Est. expiryDec 16, 2019(expired)· nominal 20-yr term from priority

Inventors:PICCIOLO LISA CRISAFULLI MURATA HIDEYUKI KAFAFI ZAKYA H

C09K 11/06C07C 2603/54C07C 15/56C07C 2603/52H10K 85/623H10K 50/11H10K 85/324H10K 2102/103

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Claims

Abstract

Pentacene derivatives substituted with two or more aromatic, substituted aromatic, heteroaromatic, or substituted heteroaromatic groups are dopants for organic electroluminescent devices. When combined with host materials and incorporated into an organic light emitting devices, the pentacene derivatives are red emitters with narrow spectra.

Claims

exact text as granted — not AI-modified

What is claimed is:  
     
       1. A compound of the formula:                    
       wherein R 5  and R 6  are phenyl groups.

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