公开(公告)号：US11545631B2

公开(公告)日：2023-01-03

申请号：US16597714

申请日：2019-10-09

Applicant: Samsung Display Co., Ltd. ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

Inventor： Yuuki Miyazaki ,  Yoshimasa Fujita ,  Kyohei Matsuo ,  Takuma Yasuda

IPC: H01L51/00 ,  C07F5/02 ,  C09K11/06 ,  H01L51/50

Abstract: An organic electroluminescence device in which a polycyclic compound including an electron donor and an electron acceptor is included in an emission layer is provided. The electron donor contains an acridine derivative or a dibenzo-azasiline derivative, and the electron acceptor contains B as a ring-forming atom, O or S directly bonded to B, and a heterocyclic group in which three or five hexagonal rings are condensed. Accordingly, an organic electroluminescence device having high efficiency may be achieved.

公开(公告)号：US11515486B2

公开(公告)日：2022-11-29

申请号：US16427620

申请日：2019-05-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yuuki Miyazaki

IPC: H01L51/00 ,  C07F7/08 ,  C07D409/04 ,  C07D405/04 ,  C07D413/04 ,  H01L51/50

Abstract: An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, the emission layer including a polycyclic compound, an electron transport region on the emission layer, and a second electrode on the electron transport region, wherein the polycyclic compound includes an isophthalonitrile derivative, a linker, and a nitrogen-containing group, the linker is a condensed cyclic group of three rings that are independently five-membered or six-membered rings, and each of the isophthalonitrile derivative and the nitrogen-containing group is substituted into a same ring of the linker.