Universal Display Corporation
Organic electroluminescent materials and devices

Abstract:

A compound having a formula selected from the group consisting of: ##STR00001## is disclosed. In these structures, each one of A.sub.1 to A.sub.16 is N or C bonded to the applicable one of R.sup.1, R.sup.2, R.sup.3, and R.sup.4; ring A and ring B are joined by a C--C bond; each R.sup.1 to R.sup.6 is independently hydrogen or a variety of substituents; and any two of R.sup.1 to R.sup.6 are optionally joined or fused into a ring, provided that the following compound is excluded: ##STR00002## Organic light emitting devices and consumer products containing the compounds are also disclosed.