公开(公告)号：US20240188424A1

公开(公告)日：2024-06-06

申请号：US18379813

申请日：2023-10-13

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Su-Hyun LEE ,  Kyung-Hoon CHOI ,  So-Young JUNG ,  Chi-Sik KIM ,  Soo-Yong LEE ,  Sang-Hee CHO ,  Young-Jun CHO ,  Young-Gil KIM ,  Bitnari KIM ,  Young-Jae KIM ,  Hyo-Nim SHIN

IPC: H10K85/60 ,  C07D307/77 ,  C07D307/91 ,  C07D405/04 ,  C07D405/12 ,  C07D413/12 ,  C09K11/06

CPC classification number: H10K85/636 ,  C07D307/77 ,  C07D307/91 ,  C07D405/04 ,  C07D405/12 ,  C07D413/12 ,  C09K11/06 ,  H10K85/622 ,  H10K85/626 ,  H10K85/633 ,  H10K85/654 ,  H10K85/6574 ,  H10K50/11

Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure or by comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

公开(公告)号：US20240057472A1

公开(公告)日：2024-02-15

申请号：US18344288

申请日：2023-06-29

Applicant: Rohm and Haas Electronic Materials Korea LTD.

Inventor： Sang-Hee CHO ,  Doo-Hyeon MOON ,  Bitnari KIM

IPC: H10K85/60 ,  C09K11/06

CPC classification number: H10K85/631 ,  C09K11/06 ,  H10K50/11 ,  H10K85/654 ,  H10K85/656 ,  H10K85/624

Abstract: The present disclosure relates to a plurality of host materials and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present disclosure can exhibit excellent lifespan characteristics while maintaining high luminous efficiency by including a specific combination of a plurality of host compounds.

公开(公告)号：US20230126428A1

公开(公告)日：2023-04-27

申请号：US18057295

申请日：2022-11-21

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Bitnari KIM ,  Doo-Hyeon MOON ,  Su-Hyun LEE ,  Du-Yong PARK ,  So-Young JUNG ,  Hae-Yeon KIM ,  Sang-Hee CHO

IPC: H01L51/00

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

公开(公告)号：US20220165956A1

公开(公告)日：2022-05-26

申请号：US17670572

申请日：2022-02-14

Applicant: Rohm and Haas Electronic Materials Korea LTD.

Inventor： Sang-Hee CHO ,  Doo-Hyeon MOON ,  Bitnari KIM

IPC: H01L51/00 ,  C09K11/06

Abstract: The present disclosure relates to a plurality of host materials and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present disclosure can exhibit excellent lifespan characteristics while maintaining high luminous efficiency by including a specific combination of a plurality of host compounds.

公开(公告)号：US20210151693A1

公开(公告)日：2021-05-20

申请号：US17263137

申请日：2019-07-24

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Su-Hyun Lee ,  Bitnari KIM ,  Hyo-Nim SHIN ,  Jeong-Eun YANG ,  Sang-Hee CHO ,  Tae-Jun HAN ,  Hyo-Soon PARK ,  So-Young NUNG

IPC: H01L51/00 ,  C07D403/10 ,  C09K11/06 ,  C07D405/10 ,  C07D209/94 ,  C07D409/10 ,  C07D403/04 ,  C07D487/16 ,  C07D405/04 ,  C07D405/14

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

公开(公告)号：US20210028369A1

公开(公告)日：2021-01-28

申请号：US17042652

申请日：2019-03-26

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Bitnari KIM ,  Sang-Hee CHO ,  Hyo-Jung LEE ,  Ye-Jin JEON ,  Hyun-Ju KANG ,  Su-Hyun LEE ,  Jeong-Eun YANG

IPC: H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  C07F15/00 ,  C07D403/10 ,  C07D403/04 ,  C07D209/86 ,  C07D487/16 ,  C07D209/88

Abstract: The present disclosure relates to a composition material for an organic electroluminescent device, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the composition material for an organic electroluminescent device of the present disclosure, it is possible to provide an organic electroluminescent device having high luminous efficiency and/or long lifespan characteristics.

公开(公告)号：US20200216392A1

公开(公告)日：2020-07-09

申请号：US16631186

申请日：2018-07-25

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Bitnari KIM ,  Sang-Hee CHO ,  Kyung-Hoon CHOI

IPC: C07D209/82 ,  H01L51/00 ,  C07D409/14 ,  C07D405/14 ,  C07D403/14 ,  H01L51/50

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. The organic electroluminescent device according to the present disclosure can exhibit excellent lifespan characteristic, while maintaining low driving voltage and high luminous efficiency, by comprising a plurality of host compounds in a specific combination. wherein the substituents are as defined in the specification.

公开(公告)号：US20200052221A1

公开(公告)日：2020-02-13

申请号：US16492631

申请日：2018-03-29

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Tae-Jin LEE ,  Sang-Hee CHO ,  Bitnari KIM ,  Young-Jun CHO

IPC: H01L51/00

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure can exhibit high efficiency and/or long lifespan by comprising at least specific combination of a light-emitting layer and a hole transport zone.

公开(公告)号：US20200028082A1

公开(公告)日：2020-01-23

申请号：US16335839

申请日：2017-10-13

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD

Inventor： Dong-Hyung LEE ,  Tae-Jin LEE ,  Bitnari KIM

IPC: H01L51/00 ,  C07C211/61 ,  C09K11/06 ,  C07D403/14

Abstract: The present disclosure relates to an organic electroluminescence device. The organic electroluminescence device of the present disclosure comprises a specific combination of a host compound and a hole transport material which can provide excellent lifespan characteristics.

公开(公告)号：US20190288222A1

公开(公告)日：2019-09-19

申请号：US16461055

申请日：2017-10-26

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Doo-Hyeon MOON ,  Bitnari KIM ,  Sang-Hee CHO

IPC: H01L51/00 ,  C07D403/10 ,  C09K11/06

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