US Patent Issued to Universal Display on July 22 for "Organic electroluminescent materials and devices" (New Jersey, Pennsylvania Inventors)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,369,487, issued on July 22, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Tongxiang Lu (Lawrenceville, N.J.), Zhiqiang Ji (Chalfont, Pa.), George Fitzgerald (Lambertville, N.J.), Pierre-Luc T. Boudreault (Pennington, N.J.) and Jui-Yi Tsai (Newtown, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound comprising a ligand LA of Formula I,where G has a structure ofis disclosed. In ligand LA, Ring C is a 5-membered or 6-membered ring; K is a direct bond, O, or S; when K is O or S, X6 is C; each of RA, RB, and RC is H or a substituent, and can be joined together to form a ri...