ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,890, issued on Aug. 25, was assigned to GUANGDONG AGLAIA OPTOELECTRONIC MATERIALS Co. LTD (Foshan, China).

"Tetradentate metal complex and use thereof" was invented by Liangliang Yan (Foshan, China), Shaofu Chen (Foshan, China), Lei Dai (Foshan, China) and Lifei Cai (Foshan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a quadridentate metal complex and application thereof. The quadridentate metal complex has a structure as shown in the following formula (1). The quadridentate metal complex provided in the present invention has the advantages of great optical, electrical, and thermal stability, high luminescen...