ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,851, issued on March 17, was assigned to DuPont Specialty Materials Korea Ltd. (South Korea).
"Organic electroluminescent device" was invented by Tae-Jin Lee (Gyeonggi-do, South Korea), Dong-Hyung Lee (Gyeonggi-do, South Korea), Bitnari Kim (Gyeonggi-do, South Korea), Hong-Se Oh (Gyeonggi-do, South Korea) and Young-Kwang Kim (Gyeonggi-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure can provide a low driving voltage and excellent luminous efficiency by comprising a specific combination of a host compo...