公开(公告)号：US20230020540A1

公开(公告)日：2023-01-19

申请号：US17679220

申请日：2022-02-24

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Seon-Woo LEE ,  Su-Hyun LEE ,  Young-Kwang KIM ,  Hee-Choon AHN ,  Doo-Hyeon MOON ,  Ji-Song JUN ,  Jae-Hoon SHIM ,  Kyoung-Jin PARK ,  Nam-Kyun KIM ,  Kyung-Hoon CHOI ,  Chi-Sik KIM ,  Young-Jun CHO ,  Bit-na-ri KIM

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

Abstract: The present disclosure relates to an organic electroluminescent device comprising an anode, a cathode, and an organic layer between the anode and the cathode, wherein the organic layer comprises one or more light-emitting layers; and at least one light-emitting layer comprises one or more dopant compounds and two or more host compounds. The organic electroluminescent device of the present disclosure has low driving voltage, high color purity, high luminous efficiency, and a long lifespan.