ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,464,945, issued on Nov. 4, was assigned to Universal Display Corp. (Ewing, N.J.).
"Organic electroluminescent materials and devices" was invented by Chuanjun Xia (Lawrenceville, N.J.), Raymond Kwong (Plainsboro, N.J.), Ken-Tsung Wong (Tapei County, Taiwan) and Ming-Cheng Kuo (Taichung County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Novel organic compounds comprising a bicarbazole core are provided. In particular, the compounds has a 3,3'-bicarbazole core substituted at the 9-position with a triazine or pyrimidine. The compounds may be used in organic light emitting devices to provide devices having improved efficiency and improved lifetime....