ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,709,615, issued on Aug. 18, was assigned to LG CHEM Ltd. (Seoul, South Korea).
"Organic light emitting device" was invented by Seulchan Park (Daejeon, South Korea), Sang Duk Suh (Daejeon, South Korea), Min Woo Jung (Daejeon, South Korea), Jungha Lee (Daejeon, South Korea), Su Jin Han (Daejeon, South Korea), Sunghyun Hwang (Daejeon, South Korea) and Dong Hoon Lee (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an organic light emitting device comprising: an anode, a cathode, a light emitting layer between the anode and the cathode, an electron inhibition layer between the anode and the light emitting layer, and a hole tra...