公开(公告)号：US11450821B2

公开(公告)日：2022-09-20

申请号：US16897744

申请日：2020-06-10

Applicant: Samsung Display Co., LTD.

Inventor： Yeseul Lee ,  Soo-Byung Ko ,  Hyeongmin Kim ,  HeeChoon Ahn ,  Hyunah Um ,  Yirang Im

IPC: H01L29/08 ,  H01L51/00 ,  H01L51/50

Abstract: An organic electroluminescence device comprises a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer comprises a polycyclic compound represented by Formula 1 and achieves high efficiency and a low driving voltage. In Formula 1, at least one of Ar1 to Ar4 is represented by Formula 2.