US Patent Issued to Shanghai Tianma Micro-Electronics on Nov. 3 for "Spirofluorene silicon compound and electroluminescence using the same" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,787,638, issued on Nov. 3, was assigned to Shanghai Tianma Micro-Electronics Co. Ltd. (Shanghai).

"Spirofluorene silicon compound and electroluminescence using the same" was invented by Tingting Lu (Wuhan, China), Wei Gao (Wuhan, China), Wenpeng Dai (Wuhan, China), Lu Zhai (Wuhan, China) and Kebin An (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound is provided as having the structure of Formula I, where: A and B are each independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; L1, L2 are each independently a single bond, a substituted or unsubstituted aryl group, or a substituted or un...