ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,507,589, issued on Dec. 23, was assigned to LG CHEM Ltd. (Seoul, South Korea).
"Organic light emitting device" was invented by Jungha Lee (Daejeon, South Korea), Min Woo Jung (Daejeon, South Korea), Su Jin Han (Daejeon, South Korea), Seulchan Park (Daejeon, South Korea), Dong Hoon Lee (Daejeon, South Korea) and Boon Jae Jang (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An organic light emitting device having improved driving voltage, efficiency and lifetime, the organic light emitting device having an anode, a cathode, and a light emitting layer disposed between the anode and the cathode, wherein the light emitting layer includes...