公开(公告)号：US20220131083A1

公开(公告)日：2022-04-28

申请号：US17500575

申请日：2021-10-13

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Su-Hyun Lee ,  So-Young Jung ,  Sang-Hee Cho ,  Jin-Ri Hong ,  So-Mi Park ,  Hae-Yeon Kim ,  Tae-Jun Han

IPC: H01L51/00 ,  C07D403/10 ,  C09K11/06 ,  C07D405/10 ,  C07D413/04 ,  C07D413/14 ,  C07D405/04 ,  C07D307/91 ,  C07C211/61 ,  C07D405/14

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material including a compound represented by formula 1 and a second host material including a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound and/or a specific combination of compounds according to the present disclosure as host materials, an organic electroluminescent device having high luminous efficiency and long lifespan property can be provided.

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：US10069086B2

公开(公告)日：2018-09-04

申请号：US15503742

申请日：2015-08-20

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Bitnari Kim ,  Nam-Kyun Kim ,  Hong-Yeop Na ,  Tae-Jin Lee ,  Kyung-Hoon Choi ,  Jae-Hoon Shim ,  Young-Jun Cho ,  Hee-Ryong Kang ,  Young-Mook Lim ,  Hyun-Ju Kang ,  Doo-Hyeon Moon ,  Ji-Song Jun ,  Hee-Choon Ahn ,  Young-Kwang Kim ,  Jin-Ri Hong

IPC: H01L51/00 ,  C09K11/06 ,  H01L51/50 ,  H01L51/56

Abstract: The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides excellent lifespan characteristics while maintaining high luminous efficiency.

公开(公告)号：US20170148998A1

公开(公告)日：2017-05-25

申请号：US15311534

申请日：2015-05-22

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Hee-Ryong Kang ,  Hyun-Ju Kang ,  Jin-Ri Hong ,  Doo-Hyeon Moon ,  Young-Mook Lim ,  Bitnari Kim ,  Nam-Kyun Kim

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

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.

公开(公告)号：US12209093B2

公开(公告)日：2025-01-28

申请号：US17175142

申请日：2021-02-12

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hyo-Jung Lee ,  Young-Kwang Kim ,  Jin-Ri Hong

IPC: C07D491/052 ,  C07D493/04 ,  C07D495/04 ,  C07D519/00 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/18 ,  H10K85/30 ,  H10K85/60

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency can be provided.

公开(公告)号：US20230002332A1

公开(公告)日：2023-01-05

申请号：US17824449

申请日：2022-05-25

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： So-Young JUNG ,  Su-Hyun Lee ,  Jin-Ri Hong ,  Jin-Man Kim ,  Hyo-Nim Shin ,  Sang-Hee Cho

IPC: C07D263/57 ,  C07D277/64 ,  C07D413/12 ,  C07D413/14 ,  C07F7/08 ,  C07D405/04 ,  C07D409/04 ,  H01L51/00

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material including a compound represented by formula 1 and a second host material including a compound represented by formula 2, and an organic electroluminescent device comprising the same. In addition, the present disclosure relates to an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound and/or a specific combination of compounds according to the present disclosure as host materials, an organic electroluminescent device having high luminous efficiency and long lifespan property can be provided.

公开(公告)号：US20210257556A1

公开(公告)日：2021-08-19

申请号：US17162993

申请日：2021-01-29

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Su-Hyun Lee ,  So-Young Jung ,  Jin-Ri Hong ,  Sang-Hee Cho ,  Young-Jae Kim

IPC: H01L51/00

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by formula 1, and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising the specific combination of compounds as host materials, it is possible to provide an organic electroluminescent device having higher luminous efficiency and/or improved lifespan properties as compared with conventional organic electroluminescent devices.

公开(公告)号：US20180182973A1

公开(公告)日：2018-06-28

申请号：US15735972

申请日：2016-04-25

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Bitnari Kim ,  Hee-Ryong Kang ,  Young-Mook Lim ,  Jin-Ri Hong ,  Tae-Jin Lee ,  Sang-Hee Cho

IPC: H01L51/00

CPC classification number: H01L51/0061 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1029 ,  C09K2211/1033 ,  C09K2211/1037 ,  C09K2211/1044 ,  C09K2211/1059 ,  C09K2211/1088 ,  C09K2211/1092 ,  H01L51/0052 ,  H01L51/0059 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/5016 ,  H01L2251/5384

Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer disposed between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant, wherein the host comprises a plurality of host compounds, wherein at least a first host compound of the plurality of host compounds has an amine-carbazole structure substituted with naphthyl-phenyl and aryl (Formula 1), and a second host compound has a di-C-benzocarbazole structure comprising nitrogen-containing heteroaryl (Formula 2). By using the plurality of host compounds of the present disclosure, the organic electroluminescent device may have long lifespan while maintaining high efficiency at high luminance compared to the conventional organic electroluminescent device using a sole host compound.

公开(公告)号：US20170279056A1

公开(公告)日：2017-09-28

申请号：US15503742

申请日：2015-08-20

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Bitnari Kim ,  Nam-Kyun Kim ,  Hong-Yeop Na ,  Tae-Jin Lee ,  Kyung-Hoon Choi ,  Jae-Hoon Shim ,  Young-Jun Cho ,  Hee-Ryong Kang ,  Young-Mook Lim ,  Hyun-Ju Kang ,  Doo-Hyeon Moon ,  Ji-Song Jun ,  Hee-Choon Ahn ,  Young-Kwang Kim ,  Jin-Ri Hong

IPC: H01L51/00 ,  C09K11/06

CPC classification number: H01L51/0072 ,  C07F7/0812 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1088 ,  C09K2211/1092 ,  C09K2211/181 ,  C09K2211/185 ,  H01L51/001 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0077 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5064 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/56 ,  H01L2251/5384 ,  H01L2251/558

Abstract: The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides excellent lifespan characteristics while maintaining high luminous efficiency.

公开(公告)号：US11844269B2

公开(公告)日：2023-12-12

申请号：US16621451

申请日：2018-05-09

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hong-Se Oh ,  Tae-Jin Lee ,  Young-Kwang Kim ,  Doo-Hyeon Moon ,  Young-Mook Lim ,  Jin-Ri Hong

IPC: H10K85/60 ,  H10K50/15

CPC classification number: H10K85/633 ,  H10K85/622 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/15

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having low driving voltage, high luminous efficiency, and/or long lifespan properties can be provided.