Universal Display Corporation
ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

Abstract:

Provided are novel metal complexes comprising tetradentate pyrimidine and pyrazine ligands. The organometallic compounds can have the structure of ##STR00001## that are useful as emitters in OLEDs and when used in OLEDs provides improved device performance. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.