Universal Display Corporation
ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

Abstract:

Provided are phenylthienothiazole containing compounds. The compound of the present invention comprises a first phenylthienothiazole-derived ligand L.sub.A according to Formula I as described herein which is coordinated to Ir to form a 5-membered chelate ring. Also provided are formulations comprising these compounds. Further provided are OLEDs and related consumer products that utilize these compounds.