Trisarylaminobenzene derivatives, compounds for organic EL eleme

Details Trisarylaminobenzene derivatives, compounds for organic EL eleme Trisarylaminobenzene derivatives, compounds for organic EL eleme

1994-02-10

1996-04-16

Raymond, Richard L.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

564434, G03G 504, C07L21154

Patent

active

055081363

ABSTRACT:
Novel trisarylaminobenzene derivatives are represented by the formula: ##STR1## wherein .PHI..sub.11, .PHI..sub.21, and .PHI..sub.31 are independently divalent aromatic ring residues, R.sub.11, R.sub.21, and R.sub.31 are independently groups represented by --N.PHI..sub.01 .PHI..sub.02, --NH.PHI..sub.01, --NR.sub.01 .PHI..sub.01, --.PHI..sub.01, --O.PHI..sub.01 or --S.PHI..sub.01 wherein each of .PHI..sub.01 and .PHI..sub.02 is a monovalent aromatic ring residue, and R.sub.01 is an alkyl group, at least one of R.sub.11, R.sub.21, and R.sub.31 being a group represented by --N.PHI..sub.01 .PHI..sub.02, --NH.PHI..sub.01 or --NR.sub.01 .PHI..sub.01, and A.sub.12, A.sub.22, and A.sub.32 are independently aromatic residues, alkyl groups or hydrogen. An organic electroluminescent element which uses the compound in an organic compound layer, especially in a hole injection transport layer provides uniform plane light emission and is durable enough to maintain luminance.

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