ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,467, issued on Feb. 24, was assigned to LG CHEM Ltd. (Seoul, South Korea).
"Organic light emitting device" was invented by Hojung Lee (Daejeon, South Korea), Wanpyo Hong (Daejeon, South Korea), Jae Seung Ha (Daejeon, South Korea), Ji Young Choi (Daejeon, South Korea), Woochul Lee (Daejeon, South Korea), Joo Ho Kim (Daejeon, South Korea), Hoon Jun Kim (Daejeon, South Korea) and Seonwoo Kim (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An organic light emitting device including a light emitting layer, which comprises one or more of compounds represented by Formulae 1-1 to 1-3; and a compound represented by Formula 2."
The paten...