公开(公告)号：US10186669B2

公开(公告)日：2019-01-22

申请号：US15953940

申请日：2018-04-16

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Hee-Ryong Kang ,  Hyun-Ju Kang ,  Jin-Ri Hong ,  Doo-Hyeon Moon ,  Young-Mook Lim ,  Bit-Na-Ri Kim ,  Nam-Kyun Kim ,  Mi-Ja Lee

IPC: C07D403/04 ,  C07D403/10 ,  C07D403/14 ,  C07D401/04 ,  C07D405/10 ,  C07D409/10 ,  C07D409/14 ,  C09K11/06 ,  H01L51/50 ,  H01L51/00 ,  C09K11/02 ,  C07D405/14 ,  C07D487/04 ,  C07D491/048 ,  C07D495/04

Abstract: The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present invention, it is possible to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and noticeably improved driving lifespan.

公开(公告)号：US20210253586A1

公开(公告)日：2021-08-19

申请号：US16972962

申请日：2019-05-09

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Bit-Na-Ri Kim ,  Su-Hyun LEE ,  Doo-Hyeon MOON ,  Hyo-Soon PARK ,  Tae-Jun HAN ,  Sang-Hee CHO

IPC: C07D487/06 ,  H01L51/00

Abstract: The present disclosure relates to a plurality of host materials comprising a compound represented by formula 1 and a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising the plurality of host materials comprising a specific combination of compounds, it is possible to provide an organic electroluminescent device having long lifespan characteristics.

公开(公告)号：US20180233676A1

公开(公告)日：2018-08-16

申请号：US15953940

申请日：2018-04-16

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Hee-Ryong Kang ,  Hyun-Ju Kang ,  Jim-Ri Hong ,  Doo-Hyeon Moon ,  Young-Mook Lim ,  Bit-Na-Ri Kim ,  Nam-Kyun Kim ,  Mi-Jia Lee

IPC: H01L51/00 ,  C07D403/10 ,  C07D403/14 ,  C07D409/14 ,  C07D403/04 ,  C09K11/06 ,  C09K11/02 ,  H01L51/50

CPC classification number: H01L51/0072 ,  C07D403/04 ,  C07D403/10 ,  C07D403/14 ,  C07D405/14 ,  C07D409/14 ,  C07D487/04 ,  C07D491/048 ,  C07D495/04 ,  C09K11/02 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1088 ,  C09K2211/1092 ,  H01L51/0052 ,  H01L51/0071 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016

Abstract: The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present invention, it is possible to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and noticeably improved driving lifespan.