公开(公告)号：US20230320203A1

公开(公告)日：2023-10-05

申请号：US18186564

申请日：2023-03-20

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hyo-Soon PARK ,  Jeong-Hwan JEON ,  Hee-Ryong KANG ,  Sang-Hee CHO ,  Dong-Hyung LEE ,  Jin-Man KIM ,  Hong-Se OH ,  Hyun-Woo KANG

IPC: H10K85/60

CPC classification number: H10K85/636 ,  H10K50/11

Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, or by comprising the compound according to the present disclosure, an organic electroluminescent device having improved driving voltage, luminous efficiency and/or lifespan characteristics compared to conventional organic electroluminescent devices can be provided.

公开(公告)号：US20230263051A1

公开(公告)日：2023-08-17

申请号：US18163613

申请日：2023-02-02

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： So-Young JUNG ,  Su-Hyun LEE ,  Chi-Sik KIM ,  Sang-Hee CHO ,  Jin-Ri HONG ,  Hee-Ryong KANG ,  Young-Jae KIM

IPC: H10K85/60 ,  H10K50/11

CPC classification number: H10K85/636 ,  H10K85/657 ,  H10K85/6574 ,  H10K85/6576 ,  H10K85/654 ,  H10K85/622 ,  H10K85/615 ,  H10K85/6572 ,  H10K85/623 ,  H10K50/11 ,  H10K2102/301

Abstract: The present disclosure relates to a plurality of host materials comprising at least one first host compound represented by formula 1 and at least one second host compound represented by formula 2 and an organic electroluminescent device comprising the same. By comprising the specific combination of compounds according to the present disclosure as the host materials, an organic electroluminescent device having low driving voltage, high luminous efficiency, and/or significantly improved lifespan characteristics can be provided.

公开(公告)号：US20230128431A1

公开(公告)日：2023-04-27

申请号：US17883537

申请日：2022-08-08

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hyo-Soon PARK ,  Joon-Hyung KIL ,  Kyoung-Jin PARK ,  Sang-Hee CHO ,  So-Mi PARK

IPC: H01L51/00

Abstract: The present disclosure relates to a plurality of host materials comprising at least one first host compound and at least one second host compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds according to the present disclosure as host materials, an organic electroluminescent device having a low driving voltage, high luminous efficiency, and long lifespan characteristics can be provided.

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：US20220231229A1

公开(公告)日：2022-07-21

申请号：US17550562

申请日：2021-12-14

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Jeong-Eun Yang ,  Sang-Hee CHO ,  Hyo-Nim SHIN ,  Hyun KIM ,  Jeong-Hwan JEON ,  Jin-Ri HONG ,  Kyoung-Jin PARK

IPC: H01L51/00 ,  C07D405/04 ,  C07D251/24 ,  C07D405/08 ,  C07D413/10 ,  C07D487/04

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 as a single host material, or 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 driving voltage, luminous efficiency, and/or lifetime properties.

公开(公告)号：US20220173330A1

公开(公告)日：2022-06-02

申请号：US17432359

申请日：2020-01-16

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： So-Young JUNG ,  Ji-Song JUN ,  Su-Hyun LEE ,  Sang-Hee CHO

IPC: H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  C07D487/06 ,  C07D491/06

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, it is possible to provide an organic electroluminescent device having improved operating voltage, luminous efficiency, lifetime, and/or power efficiency.

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：US20220123223A1

公开(公告)日：2022-04-21

申请号：US17488130

申请日：2021-09-28

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hee-Ryong KANG ,  Sang-Hee CHO ,  So-Young JUNG ,  Jin-Ri HONG ,  So-Mi PARK

IPC: H01L51/00

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 2′, a plurality of host materials comprising at least one first host compound and at least one second host compound, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound or a specific combination of compounds of the present disclosure, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency, and/or lifespan characteristics.

公开(公告)号：US20220064179A1

公开(公告)日：2022-03-03

申请号：US17406741

申请日：2021-08-19

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Ji-Song JUN ,  Su-Hyun LEE ,  Sang-Hee CHO ,  Dong-Hyung LEE

IPC: C07D493/00 ,  C07D495/00 ,  C07D209/82 ,  H01L51/00 ,  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 according to the present disclosure in a hole transport zone, it is possible to produce an organic electroluminescent device having improved luminous efficiency and/or lifespan characteristics.

公开(公告)号：US20210336153A1

公开(公告)日：2021-10-28

申请号：US16972948

申请日：2019-05-13

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： BitNari KIM ,  Su-Hyun LEE ,  Hyo-Soon PARK ,  Tae-Jun HAN ,  Jeong-Eun YANG ,  Sang-Hee CHO ,  Doo-Hyeon MOON

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 higher luminous efficiency and/or longer lifespan properties as compared with a conventional organic electroluminescent device.