US Patent Issued to Samsung Display on Oct. 21 for "Organic electroluminescence device and polycyclic compound for organic electroluminescence device" (South Korean Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,564, issued on Oct. 21, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).

"Organic electroluminescence device and polycyclic compound for organic electroluminescence device" was invented by HeeChoon Ahn (Seoul, South Korea), Soo-Byung Ko (Yongin-si, South Korea), Hyeongmin Kim (Suwon-si, South Korea), Hyunah Um (Seoul, South Korea), Yeseul Lee (Busan, South Korea) and Yirang Im (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic electroluminescence device having high luminous efficiency includes: a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport reg...