US Patent Issued to Universal Display on Jan. 13 for "Organic electroluminescent materials and devices" (New Jersey Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,527,214, issued on Jan. 13, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Chuanjun Xia (Lawrenceville, N.J.) and Bert Alleyne (Newtow, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A metal iridium complexes, devices containing the same, and formulations including the same described. The complexes can have the formula Ir(L1)n(L2)3-n, wherein the first ligand L1 has Formula I, the second ligand L2 has Formula II, L1 is different from L2; R1 is a partially or fully deuterated group consisting of alkyl and cycloalkyl; R2 represents mono, di, tri substitutions or no substitutio...