ALEXANDRIA, Va., July 21 -- United States Patent no. 12,690,383, issued on July 21, was assigned to Samsung Display Co. Ltd. (Yongin-si, South Korea).
"Light emitting diode" was invented by Hyosup Shin (Hwaseong-si, South Korea), Jiyoung Lee (Hwaseong-si, South Korea), Hyunyoung Kim (Yongin-si, South Korea) and Tsuyoshi Naijo (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a light emitting diode including a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode and including a polycyclic compound represented by Formula 1, thereby exhibiting high luminous efficiency and improved ...