US Patent Issued to Universal Display on Dec. 9 for "Organic electroluminescent materials and devices" (New Jersey, Pennsylvania Inventors)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,495,715, issued on Dec. 9, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Bin Ma (Plainsboro, N.J.), Wei-Chun Shih (Lawrenceville, N.J.), Alexey Borisovich Dyatkin (Ambler, Pa.), Jui-Yi Tsai (Newtown, Pa.), Pierre-Luc T. Boudreault (Pennington, N.J.), Jerald Feldman (Cherry Hill, N.J.) and Chun Lin (Yardley, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are compounds of formula Ir(LA)m(LB)n, where m and n are each independently 1 or 2; and m+n=3; where LA has a structure of Formula Iand LB has a structure of Formula IIthat are useful as emitters in OLEDs. Also provid...