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公开(公告)号：US20220384744A1
公开(公告)日：2022-12-01
申请号：US17272519
申请日：2019-08-28
Inventor： Su-Hyun LEE , Bitnari KIM , So-Young JUNG , Hyo-Nim SHIN , Mi-Ja LEE
IPC: H01L51/00 , C09K11/02 , C09K11/06 , C07F15/00 , C07D487/04 , C07D405/14 , C07D405/10
Abstract: The present disclosure relates to a plurality of host materials comprising a first host compound represented by formula 1 and a second host compound represented by formula 2 and an organic electroluminescent device comprising the same. By comprising the specific combination of the compound as host materials, an organic electroluminescent device having low driving voltage, high luminous efficiency and/or long lifespan can be provided compared with a conventional organic electroluminescent device.
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公开(公告)号：US20210020849A1
公开(公告)日：2021-01-21
申请号：US16886820
申请日：2020-05-29
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.
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公开(公告)号：US20200058882A1
公开(公告)日：2020-02-20
申请号：US16492632
申请日：2018-03-16
Inventor： Tae-Jin LEE , Bitnari KIM , Hee-Ryong KANG , Dong-Hyung LEE , Hong-Se OH
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 the combination of the light-emitting layer and the hole transport zone having a certain HOMO energy value according to the present disclosure, an organic electroluminescent device of excellent luminous efficiency while maintaining excellent lifespan or driving voltage characteristic of the device can be provided.
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4.发明申请公开(公告)号：US20200028089A1
公开(公告)日：2020-01-23
申请号：US16481644
申请日：2018-02-23
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.
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5.发明申请公开(公告)号：US20190326525A1
公开(公告)日：2019-10-24
申请号：US16349730
申请日：2017-12-05
Inventor： Bitnari KIM , Dong-Hyung LEE , Hyun KIM
IPC: H01L51/00 , C09K11/06 , C09K11/02 , C07F15/00 , C07D487/04
Abstract: The present disclosure relates to an organic electroluminescent material comprising at least two types of compounds and an organic electroluminescent device comprising the same. The organic electroluminescent device having color purity superior to that of a conventional organic electroluminescent device can be provided by comprising the specific combination of the compounds of the present disclosure.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20190221752A1
公开(公告)日：2019-07-18
申请号：US16331543
申请日：2017-08-22
Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD
Inventor： Su-Hyun LEE , Chi-Sik KIM , Hee-Ryong KANG , Bitnari KIM
IPC: H01L51/00 , C07D487/04
CPC classification number: H01L51/0072 , C07D487/04 , H01L51/0052 , H01L51/0067 , H01L51/5016
Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure can provide an organic electroluminescent device having low driving voltage and/or high power efficiency properties.
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公开(公告)号：US20240341110A1
公开(公告)日：2024-10-10
申请号：US18441092
申请日：2024-02-14
Inventor： Bitnari KIM , Young-Jae KIM , Hee-Ryong KANG , Sang-Hee CHO , So-Young JUNG , Tae-Jun HAN , Mi-Ran SEO
IPC: H10K50/11 , H10K85/60 , H10K101/00
CPC classification number: H10K50/11 , H10K85/622 , H10K85/633 , H10K85/636 , 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 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 a specific combination of host materials according to the present disclosure in the light-emitting layer, an organic electroluminescent device exhibiting low driving voltage and/or high luminous efficiency and/or long lifespan characteristics can be manufactured.
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8.发明公开公开(公告)号：US20240122069A1
公开(公告)日：2024-04-11
申请号：US18506195
申请日：2023-11-10
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.
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公开(公告)号：US20210359216A1
公开(公告)日：2021-11-18
申请号：US17272620
申请日：2019-08-28
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.
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10.发明申请公开(公告)号：US20170162797A1
公开(公告)日：2017-06-08
申请号：US15325140
申请日：2015-07-10
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.
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