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

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,628, issued on Dec. 30, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Jui-Yi Tsai (Newtown, Pa.), Pierre-Luc T. Boudreault (Pennington, N.J.), Alexey Borisovich Dyatkin (Ambler, Pa.), Jerald Feldman (Cherry Hill, N.J.) and Bert Alleyne (Newtown, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Compounds of Formula I,are provided. In Formula I, M is Pd or Pt; each of X1 to X14 is C or N; one of Z1 and Z2 is C and the other is N; Y is selected from O, S, Se, N*R, CRR', SiRR', or GeRR'; K1 is a direct bond, O, or S; each R, R', RA, RB, RC, and RD is independently hydrogen or ...