ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,563,964, issued on Feb. 24, was assigned to LG CHEM Ltd. (Seoul, South Korea).
"Organic light-emitting device" was invented by Woo Jin Cho (Daejeon, South Korea), Moung Gon Kim (Daejeon, South Korea), Sung Kil Hong (Daejeon, South Korea), Dongheon Kim (Daejeon, South Korea) and Sujeong Geum (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an organic light emitting device including: a cathode; an anode facing the cathode; a light emitting layer between the cathode and the anode and comprising a host and a dopant; a hole transport region between the anode and the light emitting layer; and an electron transport region betwee...