US Patent Issued to Universal Display on Dec. 30 for "Organic electroluminescent materials and devices" (New Jersey, Pennsylvania Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,514,110, issued on Dec. 30, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Hsiao-Fan Chen (Lawrence Township, N.J.), Scott Beers (Flemington, N.J.), Morgan C. Macinnis (Yardley, Pa.) and Tyler Fleetham (Yardley, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound comprising a metal M and a first ligand LA having a structure of Formula I,is described. In Formula I, each independently represents a single bond or a double bond; each of X1' to X4' is independently C, N, or NR'; at least one of X1 to X4 is NR'; each RA', R', R1, R2, and R3 is independently hydrogen or a gene...