公开(公告)号：US20200207713A1

公开(公告)日：2020-07-02

申请号：US16641286

申请日：2018-08-23

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Su-Hyun LEE ,  Hyo-Soon PARK ,  Tae-Jun HAN ,  Bitnari KIM

IPC: C07D209/80 ,  C07D401/04 ,  C07D403/04 ,  C07D403/10 ,  C07D401/14 ,  C07D471/04 ,  C07D333/80 ,  C07D409/04 ,  C07D409/10 ,  C07D307/93 ,  C07D405/04 ,  C07D405/10 ,  C07D491/048 ,  C07D495/04 ,  C07D487/04 ,  H01L51/00

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

公开(公告)号：US20180301636A1

公开(公告)日：2018-10-18

申请号：US15580082

申请日：2016-05-13

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Kyoung-Jin PARK ,  Bitnari KIM ,  Yoo-Jin DOH ,  Hyun-Ju KANG ,  Young-Mook LIM ,  Su-Hyun LEE ,  Chi-Sik KIM

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

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 comprises plural host compounds; at least a first host compound of the plural host compounds has a structure of a nitrogen-containing heterocyclic linker bonded to a nitrogen atom of a carbazole of an indole-carbazole, indene-carbazole, benzofuran-carbazole, or benzothiophene-carbazole residue; and a second host compound has a carbazole-aryl-carbazole or carbazole-carbazole structure. According to the present invention, by using a specific multi-component host different from the conventional organic electroluminescent device, an organic electroluminescent device of significantly improved lifespan is provided.

公开(公告)号：US20240174694A1

公开(公告)日：2024-05-30

申请号：US18406700

申请日：2024-01-08

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

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

IPC: C07D519/00 ,  H10K85/60

CPC classification number: C07D519/00 ,  H10K85/622 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K2101/90

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 the compounds wherein the first host compound is represented by formula 1 and the second host compound is represented by formula 2, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency and/or lifetime property.

公开(公告)号：US20240122069A1

公开(公告)日：2024-04-11

申请号：US18506195

申请日：2023-11-10

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Bitnari KIM ,  Su-Hyun LEE ,  So-Young JUNG ,  Hyo-Soon PARK ,  Tae-Jun HAN ,  Young-Jun CHO ,  Sang-Hee CHO

IPC: H10K85/60 ,  C07D239/74 ,  C07D241/42 ,  C07D251/24 ,  C07D487/04 ,  C09K11/02 ,  C09K11/06

CPC classification number: H10K85/6572 ,  C07D239/74 ,  C07D241/42 ,  C07D251/24 ,  C07D487/04 ,  C09K11/025 ,  C09K11/06 ,  H10K85/654 ,  H10K85/6574 ,  H10K85/6576 ,  C09K2211/1018 ,  H10K50/11

Abstract: The present disclosure relates to a plurality of host materials and organic electroluminescent devices comprising the same. The present disclosure may provide a plurality of host materials having a composition favorable to thermal denaturation due to a low deposition temperature, while improving hole properties and electronic properties of HOMO and LUMO, by comprising separate compounds represented by formulas 1 and 2 into a light-emitting layer. By comprising the plurality of host materials of the present disclosure, it is possible to provide an organic electroluminescent device having a lower driving voltage, higher luminous efficiency and/or longer lifetime.

公开(公告)号：US20240090328A1

公开(公告)日：2024-03-14

申请号：US18495274

申请日：2023-10-26

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hee-Choon AHN ,  Young-Kwang KIM ,  Su-Hyun LEE ,  Ji-Song JUN ,  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: H10K85/60 ,  C07D209/86 ,  C07F15/00 ,  C09K11/02 ,  C09K11/06 ,  H10K85/30 ,  H10K85/40

CPC classification number: H10K85/6572 ,  C07D209/86 ,  C07F15/0033 ,  C09K11/025 ,  C09K11/06 ,  H10K85/342 ,  H10K85/40 ,  H10K85/615 ,  H10K85/654 ,  H10K85/657 ,  H10K85/6574 ,  H10K85/6576 ,  C07D491/04 ,  C09K2211/1007 ,  C09K2211/1029 ,  C09K2211/185

Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.

公开(公告)号：US20230157156A1

公开(公告)日：2023-05-18

申请号：US17894700

申请日：2022-08-24

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Eun-Joung CHOI ,  Young-Kwang KIM ,  Su-Hyun LEE ,  So-Young JUNG ,  YeJin JEON ,  Hong-Se OH ,  Dong-Hyung LEE ,  Jin-Man KIM ,  Hyun-Woo KANG ,  Mi-Ja LEE ,  Hee-Ryong KANG ,  Hyo-Nim SHIN ,  Jeong-Hwan JEON ,  Sang-Hee CHO

IPC: H01L51/00 ,  C07C211/61 ,  C09K11/06 ,  C07D307/91 ,  C07D345/00

CPC classification number: H01L51/006 ,  C07C211/61 ,  C09K11/06 ,  C07D307/91 ,  H01L51/0061 ,  C07D345/00 ,  H01L51/5064

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

公开(公告)号：US20220144856A1

公开(公告)日：2022-05-12

申请号：US17516947

申请日：2021-11-02

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Hyun-Ju KANG ,  Eun-Joung CHOI ,  Hyo-Jung LEE ,  Su-Hyun LEE ,  Kyoung-Jin PARK ,  Sang-Hee CHO ,  Hong-Yeop NA

IPC: C07D519/00 ,  C07D513/04 ,  C07D498/04 ,  H01L51/00

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 the specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to provide an organic electroluminescent device having improved luminous efficiency.

公开(公告)号：US20220131081A1

公开(公告)日：2022-04-28

申请号：US17425681

申请日：2020-01-22

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Doo-Hyeon MOON ,  Su-Hyun LEE ,  Du-Yong PARK ,  Sang-Hee CHO ,  Dong-Hyung LEE

IPC: H01L51/00 ,  C09K11/02 ,  C07D409/10 ,  C09K11/06 ,  C07D405/10 ,  C07D405/14 ,  H01L51/50

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 long lifetime and/or high luminous efficiency 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：US20210359216A1

公开(公告)日：2021-11-18

申请号：US17272620

申请日：2019-08-28

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Bitnari KIM ,  Su-Hyun LEE ,  So-Young JUNG ,  Ji-Won UM ,  Jeong-Eun YANG ,  Sang-Hee CHO

IPC: H01L51/00

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 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.