ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,446,459, issued on Oct. 14, was assigned to DuPont Specialty Materials Korea Ltd. (South Korea).
"Organic electroluminescent device" was invented by Dong-Hyung Lee (Gyeonggi-do, South Korea), Chi-Sik Kim (Gyeonggi-do, South Korea), Soo-Yong Lee (Gyeonggi-do, South Korea), Seung-Hoon Yoo (Gyeonggi-do, South Korea) and Yoo-Jin Doh (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 comprising a first electrode, a second electrode, and at least one organic layer interposed between the first electrode and the second electrode, wherein the organic layer comprises a li...