ALEXANDRIA, Va., March 26 -- United States Patent no. 12,262,578, issued on March 25, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).
"Organic light-emitting device" was invented by Naoyuki Ito (Yongin-si, South Korea), Seul-Ong Kim (Yongin-si, South Korea), Youn-Sun Kim (Yongin-si, South Korea), Dong-Woo Shin (Yongin-si, South Korea) and Jung-Sub Lee (Yongin-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An organic light-emitting device and a flat panel display device, the organic-light emitting device including an anode; a cathode; and an organic layer therebetween including an emission layer, a hole transport region between the anode and the emission layer, the hole tran...