公开(公告)号：US11917907B2

公开(公告)日：2024-02-27

申请号：US17532294

申请日：2021-11-22

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Kyoung-Jin Park ,  Tae-Jin Lee ,  Jae-Hoon Shim ,  Yoo Jin Doh ,  Hee-Choon Ahn ,  Young-Kwang Kim ,  Doo-Hyeon Moon ,  Jeong-Eun Yang ,  Su-Hyun Lee ,  Chi-Sik Kim ,  Ji-Song Jun

IPC: H01L51/54 ,  H10K85/60 ,  C09K11/06 ,  H05B33/20 ,  C07D209/86 ,  C07D405/14 ,  C07D409/14 ,  C09K11/02 ,  H10K50/11 ,  H10K50/15 ,  H10K101/10 ,  H10K101/00

CPC classification number: H10K85/633 ,  C07D209/86 ,  C07D405/14 ,  C07D409/14 ,  C09K11/025 ,  C09K11/06 ,  H05B33/20 ,  H10K85/631 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  C09K2211/1007 ,  C09K2211/1029 ,  C09K2211/1088 ,  C09K2211/1092 ,  C09K2211/185 ,  H10K50/11 ,  H10K50/15 ,  H10K50/156 ,  H10K85/615 ,  H10K85/624 ,  H10K85/626 ,  H10K2101/10 ,  H10K2101/90

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.