US Patent Issued to Rohm and Haas Electronic Materials Korea on Feb. 25 for "Organic electroluminescent compound, a plurality of host materials, and organic electroluminescent device comprising the same" (South Korean Inventors)

ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,234,219, issued on Feb. 25, was assigned to Rohm and Haas Electronic Materials Korea Ltd. (South Korea).

"Organic electroluminescent compound, a plurality of host materials, and organic electroluminescent device comprising the same" was invented by Eun-Joung Choi (Gyeonggi-do, South Korea), Hyun-Ju Kang (Gyeonggi-do, South Korea), Hong-Yeop Na (Gyeonggi-do, South Korea), Su-Hyun Lee (Gyeonggi-do, South Korea) and Sang-Hee Cho (Gyeonggi-do, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic electroluminescent compound and a plurality of host materials produce an organic electroluminescent device having an improved luminous efficiency."...