公开(公告)号：US20200013965A1

公开(公告)日：2020-01-09

申请号：US16483065

申请日：2018-02-26

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Jeong-Eun YANG ,  Hong-Se OH ,  Hee-Ryong KANG ,  Young-Gil KIM ,  Sang-Hee CHO

IPC: H01L51/00

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, it is possible to provide an organic electroluminescent device having excellent thermal stability, low driving voltage, high luminous efficiency, and/or improved lifespan properties.

公开(公告)号：US20190393427A1

公开(公告)日：2019-12-26

申请号：US16481529

申请日：2018-02-09

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Doo-Hyeon MOON ,  Sang-Hee CHO

IPC: H01L51/00 ,  C09K11/06

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present disclosure is contained in an electron transport layer and/or an electron buffer layer, so that an organic electroluminescent device having improved light-emitting efficiency can be manufactured.

公开(公告)号：US20190207125A1

公开(公告)日：2019-07-04

申请号：US16325248

申请日：2017-09-13

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD

Inventor： Hee-Choon AHN ,  Doo-Hyeon MOON ,  Sang-Hee CHO

IPC: H01L51/00 ,  H01L51/50

CPC classification number: H01L51/0072 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5076 ,  H01L51/5092 ,  H01L2251/552 ,  H01L2251/558

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure comprises a specific combination of an electron buffer material and an electron transport material which can provide high efficiency and/or long lifespan.

公开(公告)号：US20240276872A1

公开(公告)日：2024-08-15

申请号：US18404236

申请日：2024-01-04

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： So-Young JUNG ,  Tae-Jun HAN ,  YeJin JEON ,  Seung-Hyun YOON ,  Young-Jae KIM ,  Hyun-Ju KANG ,  Bitnari KIM ,  Sang-Hee CHO

IPC: H10K85/60 ,  C07D209/88 ,  C07D405/04 ,  C07D405/12 ,  C09K11/06

CPC classification number: H10K85/622 ,  C07D209/88 ,  C07D405/04 ,  C07D405/12 ,  C09K11/06 ,  H10K85/626 ,  H10K85/633 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6574 ,  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 3 different from the first 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 low driving voltage, high luminous efficiency, and/or significantly improved lifespan characteristic, can be provided.

公开(公告)号：US20240228873A1

公开(公告)日：2024-07-11

申请号：US18581733

申请日：2024-02-20

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hee-Ryong KANG ,  Jin-Ri HONG ,  Bitnari KIM ,  Sang-Hee CHO

IPC: C09K11/06 ,  C07D209/82 ,  C07D251/24 ,  C07D403/10 ,  C07D405/14 ,  C07D409/14 ,  C09B57/00 ,  C09B57/10 ,  H10K50/11 ,  H10K50/12 ,  H10K85/30 ,  H10K85/60 ,  H10K101/10

CPC classification number: C09K11/06 ,  C07D209/82 ,  C07D251/24 ,  C07D403/10 ,  C09B57/00 ,  C09B57/008 ,  C09B57/10 ,  H10K50/12 ,  H10K85/615 ,  H10K85/626 ,  H10K85/654 ,  H10K85/6572 ,  C07D405/14 ,  C07D409/14 ,  H10K50/11 ,  H10K85/342 ,  H10K2101/10

Abstract: The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention can be comprised in a light-emitting layer or an electron buffer layer, and is effective to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and significantly improved operational lifespan.

公开(公告)号：US20240224794A1

公开(公告)日：2024-07-04

申请号：US18502388

申请日：2023-11-06

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Ga-Won LEE ,  Sang-Hee CHO ,  Young-Rok LIM ,  Ji-Won UM

IPC: H10K85/60 ,  C09K11/02 ,  H10K85/40

CPC classification number: H10K85/633 ,  C09K11/02 ,  H10K85/40 ,  H10K85/622 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  C07B2200/05

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

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：US20240138260A1

公开(公告)日：2024-04-25

申请号：US18463978

申请日：2023-09-08

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Ji-Song JUN ,  Hong-Se OH ,  Dong-Hyung LEE ,  Sang-Hee CHO ,  Du-Yong PARK ,  Hyun-Woo KANG ,  Jin-Man KIM

IPC: H10K85/60 ,  C09K11/02 ,  C09K11/06 ,  H10K85/40

CPC classification number: H10K85/6574 ,  C09K11/02 ,  C09K11/06 ,  H10K85/40 ,  H10K85/615 ,  H10K85/622 ,  H10K85/633 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6576 ,  C07B2200/05 ,  C09K2211/1022

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 host compounds and/or an organic electroluminescent compound according to the present disclosure as an organic electroluminescent material, 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：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：US20230320207A1

公开(公告)日：2023-10-05

申请号：US18075353

申请日：2022-12-05

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hyun KIM ,  Hong-Se OH ,  Mi-Ja LEE ,  Ji-Won UM ,  Kyoung-Jin PARK ,  So-Mi PARK ,  Hyun-Woo KANG ,  Sang-Hee CHO

IPC: H10K85/60 ,  H10K85/40 ,  C07D405/14 ,  C07D405/04 ,  C07D405/10 ,  C07D407/10 ,  C07D409/10 ,  C07D311/82 ,  C07D409/14 ,  C07D311/88 ,  H10K50/11

CPC classification number: H01L51/0072 ,  C07D311/82 ,  C07D311/88 ,  C07D405/04 ,  C07D405/10 ,  C07D405/14 ,  C07D407/10 ,  C07D409/10 ,  C07D409/14 ,  H01L51/0054 ,  H01L51/0059 ,  H01L51/0061 ,  H01L51/0064 ,  H01L51/0067 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0094 ,  H01L51/5012 ,  C07B2200/05

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, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency and/or lifetime properties, compared to the conventional organic electroluminescent device.