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31.发明申请公开(公告)号：US20210175423A1
公开(公告)日：2021-06-10
申请号：US16998920
申请日：2020-08-20
Applicant: Samsung Display Co., Ltd.
Inventor： Hirokazu KUWABARA , Yoshiro SUGITA , Ryuhei FURUE
Abstract: An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The emission layer may include a polycyclic compound represented by Formula 1 to thereby exhibit high luminous efficiency:
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