US Patent Issued to LG Chem on Oct. 20 for "Organic light emitting device" (South Korean Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,772,730, issued on Oct. 20, was assigned to LG Chem LTD. (Seoul, South Korea).

"Organic light emitting device" was invented by Minjun Kim (Daejeon, South Korea), Dong Hoon Lee (Daejeon, South Korea), Sang Duk Suh (Daejeon, South Korea) and Young Seok Kim (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; and a light emitting layer between the anode and cathode, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2:wherein any one of Y1 to Y7 is N and the others are CR; Ar1 and Ar2 are each independently a su...