US Patent Issued to Universal Display on Nov. 11 for "Organic electroluminescent materials and devices" (Pennsylvania, New Jersey Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,848, issued on Nov. 11, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Jui-Yi Tsai (Newtown, Pa.), Alexey Borisovich Dyatkin (Ambler, Pa.), Walter Yeager (Yardley, Pa.) and Pierre-Luc T. Boudreault (Pennington, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a new class of phosphorescent emitters. The inventive emitters feature a benzimidazole phenoxide ligand, which is connected via "top linkers" to form novel tetradentate ligands. These phosphorescent emitters are Pt tetradentate complexes when used in OLEDs as emitters improves device external quantum effic...