Red organic electroluminescent materials

Details Red organic electroluminescent materials Red organic electroluminescent materials

1997-04-07

1999-06-01

Huang, Evelyn Mei

Compositions

Organic luminescent material containing compositions

25230122, 25230126, 25230132, 428690, 428917, 430 48, 546 94, 549396, 549398, 549414, 549415, 549426, C07K 1106, C07D45504

Patent

active

059085819

ABSTRACT:
A red fluorescent material includes a compound of the formula: ##STR1## wherein: R.sub.1, and R.sub.2 are individually alkyl of from 1 to 20 carbon atoms, aryl, carbocyclic and other heterocyclic systems; and

REFERENCES:
patent: 4145215 (1979-03-01), Van Allan
patent: 4769292 (1988-09-01), Tang

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