ALEXANDRIA, Va., May 12 -- United States Patent no. 12,628,551, issued on May 12, was assigned to LG CHEM Ltd. (Seoul, South Korea).
"Organic light-emitting device" was invented by Jae Seung Ha (Daejeon, South Korea), Dong Uk Heo (Daejeon, South Korea), Min Woo Lee (Daejeon, South Korea) and Sung Jae Lee (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an organic light-emitting device including: a first electrode; a second electrode provided to face the first electrode; and a first organic material layer and a second organic material layer provided between the first electrode and the second electrode, in which the first organic material layer includes a compound of Formula 1:w...