公开(公告)号：US20220109109A1

公开(公告)日：2022-04-07

申请号：US17405987

申请日：2021-08-18

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Chi-Sik KIM ,  Kyung-Hoon CHOI ,  Hyo-Nim SHIN ,  Kyoung-Jin PARK ,  Hyun-Woo KANG ,  Soo-Yong LEE ,  Seung-Hoon YOO ,  Mi-Ja LEE ,  Samuel KIM

IPC: H01L51/00

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1′ or 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 the specific combination of compounds according to the present disclosure as a host material(s), it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency and/or lifetime properties.

公开(公告)号：US20220033414A1

公开(公告)日：2022-02-03

申请号：US17384108

申请日：2021-07-23

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： So-Young JUNG ,  Jin-Ri HONG ,  Doo-Hyeon MOON ,  Sang-Hee CHO ,  Su-Hyun LEE ,  Du-Yong PARK ,  Mi-Ja LEE

IPC: C07D495/00 ,  C07D493/00 ,  H01L51/00

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 2′ or 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. An organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency and/or lifespan properties can be provided by including the organic electroluminescent compound or a specific combination of compounds according to the present disclosure as a host material(s).

公开(公告)号：US20170162797A1

公开(公告)日：2017-06-08

申请号：US15325140

申请日：2015-07-10

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Mi-Ja LEE ,  Bitnari KIM ,  Nam-Kyun KIM ,  Hee-Ryong KANG

IPC: H01L51/00 ,  C09K11/02 ,  C07D487/04

CPC classification number: H01L51/0072 ,  C07D403/04 ,  C07D403/10 ,  C07D405/04 ,  C07D405/10 ,  C07D409/04 ,  C07D409/10 ,  C07D409/14 ,  C07D487/04 ,  C07D491/048 ,  C07D495/04 ,  C07D519/00 ,  C07F7/0812 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1029 ,  C09K2211/1088 ,  C09K2211/1092 ,  C09K2211/185 ,  H01L51/0085 ,  H01L51/5016 ,  H05B33/14 ,  H05B33/22

Abstract: The present disclosure relates to an organic electroluminescent compound of Formula 1 (variables Y1, Y2 and R1 to R4 defined herein), and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present disclosure can be used for the manufacture of an organic electroluminescent device showing improvement in luminous efficiency, especially in current efficiency.

公开(公告)号：US20240107794A1

公开(公告)日：2024-03-28

申请号：US18457633

申请日：2023-08-29

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Su-Hyun LEE ,  Soo-Yong LEE ,  Chi-Sik KIM ,  HaeYeon KIM ,  Yoo-Jin DOH ,  SeungAe KIM ,  Mi-Ja LEE

IPC: H10K50/18 ,  C07D235/18 ,  C09K11/06 ,  H10K50/11 ,  H10K50/16 ,  H10K85/60

CPC classification number: H10K50/18 ,  C07D235/18 ,  C09K11/06 ,  H10K50/11 ,  H10K50/16 ,  H10K85/626 ,  H10K85/6572 ,  H10K2101/90

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device according to the present disclosure includes a deuterated organic electroluminescent material, so it can exhibit a low driving voltage and high luminous efficiency.

公开(公告)号：US20230413667A1

公开(公告)日：2023-12-21

申请号：US18323036

申请日：2023-05-24

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Doo-Hyeon MOON ,  Mi-Ja LEE ,  Kyoung-Jin PARK ,  Yea-Mi SONG ,  Hyun-Ju KANG ,  Hyo-Jung LEE ,  Chi-Sik KIM ,  DaiKyu KIM

IPC: H10K85/60 ,  C07D403/04 ,  C09K11/06 ,  C07D403/10

CPC classification number: H10K85/6572 ,  C07D403/04 ,  C09K11/06 ,  H10K85/654 ,  C07D403/10 ,  H10K2101/90

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 a specific combination of compounds according to the present disclosure as host materials, an organic electroluminescent device having significantly improved lifespan characteristics can be provided.

公开(公告)号：US20230329107A1

公开(公告)日：2023-10-12

申请号：US18321074

申请日：2023-05-22

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： So-Young JUNG ,  Su-Hyun LEE ,  Mi-Ja LEE ,  Doo-Hyeon MOON ,  Sang-Hee CHO

IPC: H10K85/60

CPC classification number: H10K85/6572 ,  H10K85/615 ,  H10K85/626 ,  H10K85/654 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/11

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 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 lifetime properties as compared with a conventional organic electroluminescent device.

公开(公告)号：US20230292611A1

公开(公告)日：2023-09-14

申请号：US18182569

申请日：2023-03-13

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： So-Young JUNG ,  Su-Hyun LEE ,  Sang-Hee CHO ,  Ji-Song JUN ,  Jin-Ri HONG ,  Mi-Ja LEE

IPC: H10K85/60 ,  C07D405/04 ,  C07D405/14 ,  C07D409/14 ,  H10K85/40 ,  C07F7/08 ,  C07D405/10 ,  C07D409/04 ,  C07D491/048 ,  H10K50/11

CPC classification number: H10K85/6574 ,  H10K85/654 ,  C07D405/04 ,  C07D405/14 ,  H10K85/6576 ,  C07D409/14 ,  H10K85/615 ,  H10K85/6572 ,  H10K85/40 ,  C07F7/0812 ,  C07D405/10 ,  C07D409/04 ,  C07D491/048 ,  H10K50/11 ,  H10K85/636 ,  H10K85/631 ,  H10K85/633 ,  C07B2200/05

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 and/or the plurality of host materials according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan characteristics can be provided.

公开(公告)号：US20230217820A1

公开(公告)日：2023-07-06

申请号：US18075632

申请日：2022-12-06

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Doo-Hyeon MOON ,  Sung-Woo JANG ,  Mi-Ja LEE ,  Kyoung-Jin PARK ,  Du-Yong PARK ,  Hyo-Soon PARK

IPC: H10K85/60 ,  C07D471/04 ,  C09K11/06

CPC classification number: H01L51/0072 ,  C07D471/04 ,  C09K11/06 ,  H01L51/0067 ,  H01L51/5016

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

公开(公告)号：US20230157165A1

公开(公告)日：2023-05-18

申请号：US17978872

申请日：2022-11-01

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： CHi-Sik KIM ,  Kyoung-jin PARK ,  Soo-Yong LEE ,  Hyun-Woo KANG ,  So-Mi PARK ,  Mi-Ja LEE

IPC: H10K85/60 ,  C07D487/04 ,  C09K11/06

CPC classification number: H01L51/0072 ,  C07D487/04 ,  C09K11/06 ,  H01L51/0067 ,  H01L51/5012

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 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 organic electroluminescent compound or a specific combination of compounds according to the present disclosure as a host material, it is possible to produce an organic electroluminescent device having significantly improved lifetime properties.

公开(公告)号：US20230096621A1

公开(公告)日：2023-03-30

申请号：US17848946

申请日：2022-06-24

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hyo-Soon PARK ,  Mi-Ja LEE ,  Kyung-Hoon CHOI ,  Kyoung-Jin PARK ,  Jin-Ri HONG ,  So-Mi PARK ,  Hyun KIM

IPC: C07F15/00 ,  H01L51/00 ,  H01L51/50

Abstract: The present disclosure relates to an organic electroluminescent compound comprising a ligand 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 higher luminous efficiency and/or longer lifetime properties compared to a conventional organic electroluminescent device.