Universal Display Corporation
ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

Abstract:

Provided are organometallic compounds of formula Os(L.sub.A).sub.x(L.sub.B).sub.y(L.sub.C).sub.z, where L.sub.A has a structure of Formula I with the two indicated dashed lines for coordination to Os: ##STR00001## Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.