Organic electroluminescent material and electroluminescent...

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Reexamination Certificate

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C428S917000, C313S503000, C313S504000, C257S040000

Reexamination Certificate

active

07029764

ABSTRACT:
An organic electroluminescent material of the formula:wherein R1, R2and R3are selected from the group consisting of hydrogen, halogen, nitryl, alkyl, cycloalkyl, alkyloxy, alkenyl, amine, aryl, polyaryl, arylalkyl, and propenyloxy, Ar3is at least one selected from the group consisting of aryl and polyaryl and A and B are at least one selected from the group consisting of hydrogen, alkyl, cycloalkyl, alkyloxy, alkenyl, amine, aryl, polyaryl, arylalkyl, and propenyloxy. An electroluminescent device having the organic electroluminescent material is provided.

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