公开(公告)号：US20240032418A1

公开(公告)日：2024-01-25

申请号：US18329270

申请日：2023-06-05

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

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

IPC: H10K85/60 ,  C07D413/14 ,  C09K11/06

CPC classification number: H10K85/657 ,  C07D413/14 ,  C09K11/06 ,  H10K85/6574 ,  H10K85/654 ,  H10K85/6572 ,  H10K50/12

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

公开(公告)号：US20230180604A1

公开(公告)日：2023-06-08

申请号：US18062715

申请日：2022-12-07

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 ,  H01L51/006 ,  H01L51/0058 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5092 ,  H01L51/508 ,  H01L51/5056 ,  H01L51/5076 ,  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：US20220231228A1

公开(公告)日：2022-07-21

申请号：US17501634

申请日：2021-10-14

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Dong-Hyung LEE ,  Hyun-Woo KANG ,  Kyung-Hoon CHOI ,  Hong-Se OH ,  So-Mi PARK ,  Doo-Hyeon MOON ,  Du-Yong PARK ,  Hyun-Ju KANG

IPC: H01L51/00

Abstract: The present disclosure relates to an organic electroluminescent device comprising a light-emitting layer and a hole transport zone. By comprising a combination of the specific light-emitting layer and the specific hole transport zone according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan characteristics.

公开(公告)号：US20220077405A1

公开(公告)日：2022-03-10

申请号：US17526112

申请日：2021-11-15

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hee-Choon AHN ,  Young-Kwang KIM ,  Doo-Hyeon MOON ,  Su-Hyun LEE ,  Seon-Woo LEE ,  Chi-Sik KIM ,  Kyoung-Jin PARK ,  Nam-Kyun KIM ,  Kyung-Hoon CHOI ,  Jae-Hoon SHIM ,  Young-Jun CHO ,  Kyung-Joo LEE

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

Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a specific bicarbazole derivative containing an aryl group, and a second host compound is a specific carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, the organic electroluminescent device using the multi-component host compounds has a high efficiency and long lifespan compared with the conventional device using one component host compound.

公开(公告)号：US20210320252A1

公开(公告)日：2021-10-14

申请号：US17267469

申请日：2019-08-07

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Jin-Ri Hong ,  Doo-Hyeon MOON ,  Du-Yong PARK ,  Young-Mock LIM

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

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, an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan characteristics can be provided.

公开(公告)号：US20210020849A1

公开(公告)日：2021-01-21

申请号：US16886820

申请日：2020-05-29

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：US20200381630A1

公开(公告)日：2020-12-03

申请号：US16606796

申请日：2018-04-11

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Doo-Hyeon MOON

IPC: H01L51/00 ,  C07D403/04 ,  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 improved lifespan characteristics can be provided.

公开(公告)号：US20200152885A1

公开(公告)日：2020-05-14

申请号：US16630871

申请日：2018-07-19

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hyun KIM ,  Doo-Hyeon MOON ,  Sang-Hee CHO ,  Sung-Wook CHO

IPC: H01L51/00 ,  C07D401/10 ,  C09K11/06

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

公开(公告)号：US20200028089A1

公开(公告)日：2020-01-23

申请号：US16481644

申请日：2018-02-23

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

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

IPC: H01L51/00

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：US20240237511A1

公开(公告)日：2024-07-11

申请号：US18406662

申请日：2024-01-08

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Dong-Hyung LEE ,  Chi-Sik KIM ,  Soo-Yong LEE ,  Seung-Hoon YOO ,  Doo-Hyeon MOON ,  Hyun-Woo KANG

IPC: H10K85/60 ,  C07C211/61 ,  C09K11/02 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/155

CPC classification number: H10K85/633 ,  C07C211/61 ,  C09K11/02 ,  C09K11/06 ,  C07C2603/18 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  H10K50/11 ,  H10K50/155 ,  H10K50/156 ,  H10K85/626

Abstract: The present disclosure relates to a plurality of organic electroluminescent materials comprising at least one first compound and at least one second compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds, in which the first compound is represented by formula 1 and the second compound is represented by formula 2, it is possible to provide an organic electroluminescent device having improved lifetime properties.