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11.发明公开公开(公告)号：US20240188432A1
公开(公告)日：2024-06-06
申请号：US18430070
申请日：2024-02-01
Inventor： Bitnari KIM , Su-Hyun LEE , Hyo-Soon PARK , Tae-Jun HAN , Jeong-Eun YANG , Sang-Hee CHO , Doo-Hyeon MOON
IPC: H10K85/60 , H10K50/11 , H10K50/12 , H10K50/15 , H10K50/17 , H10K101/00 , H10K101/10
CPC classification number: H10K85/6572 , H10K85/622 , H10K85/654 , H10K85/6574 , H10K85/6576 , H10K50/11 , H10K50/12 , H10K50/15 , H10K50/171 , H10K2101/10 , H10K2101/90
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 higher luminous efficiency and/or longer lifespan properties as compared with a conventional organic electroluminescent device.
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12.发明公开公开(公告)号：US20240099132A1
公开(公告)日：2024-03-21
申请号：US18509819
申请日：2023-11-15
Inventor： Kyoung-Jin PARK , Bitnari KIM , Yoo-Jin DOH , Hyun-Ju KANG , Young-Mook LIM , Su-Hyun LEE , Chi-Sik KIM
CPC classification number: H10K85/6572 , C09K11/025 , C09K11/06 , H10K85/342 , H10K85/654 , H10K85/657 , H10K50/11
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.
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公开(公告)号：US20210328154A1
公开(公告)日：2021-10-21
申请号：US17264742
申请日：2019-07-26
Inventor： Bitnari KIM , Su-Hyun LEE , Doo-Hyeon MOON , 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 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.
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公开(公告)号：US20210265569A1
公开(公告)日：2021-08-26
申请号：US17259909
申请日：2019-06-05
Inventor： Bitnari KIM , Jeong-Eun YANG , Doo-Hyeon MOON , Su-Hyun LEE , Hyo-Soon PARK , 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 of the present disclosure as host materials, it is possible to provide an organic electroluminescent device having higher luminous efficiency and/or longer lifespan properties as compared with a conventional organic electroluminescent device.
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15.发明申请公开(公告)号：US20200212310A1
公开(公告)日：2020-07-02
申请号：US16640082
申请日：2018-09-21
Inventor： Bitnari KIM , Su-Hyun LEE , So-Young JUNG , Hyo-Soon PARK , Tae-Jun HAN , Young-Jun CHO , Sang-Hee CHO
IPC: H01L51/00 , C07D487/04 , C07D251/24 , C07D239/74 , C07D241/42 , C09K11/02 , C09K11/06
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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Patent Agency Ranking
16.发明申请公开(公告)号：US20190221758A1
公开(公告)日：2019-07-18
申请号：US16327877
申请日：2017-09-20
Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD
Inventor： Bitnari KIM , Hyun KIM , Dong Hyung LEE
IPC: H01L51/00
CPC classification number: H01L51/0085 , C07D487/04 , C09K11/06 , H01L51/0052 , H01L51/0072 , H01L51/5016 , H05B33/14
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 better color purity than a conventional organic electroluminescent device can be provided by comprising the specific combination of the compounds of the present disclosure.
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17.发明公开公开(公告)号：US20240298528A1
公开(公告)日：2024-09-05
申请号：US18433577
申请日：2024-02-06
Inventor： So-Young JUNG , Tae-Jun HAN , YeJin JEON , Dong-Gil KIM , Young-Jae KIM , Hyun-Ju KANG , Sang-Hee CHO , Bitnari KIM
IPC: H10K85/60 , C07D413/12 , C09K11/06 , H10K50/11 , H10K101/00
CPC classification number: H10K85/636 , C07D413/12 , C09K11/06 , H10K85/622 , H10K85/626 , H10K85/654 , H10K85/6574 , C09K2211/1018 , H10K50/11 , H10K85/657 , H10K85/6572 , H10K2101/90
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, an organic electroluminescent device having a lower driving voltage and/or higher luminous efficiency and/or improved lifespan properties compared to a conventional organic electroluminescent device may be provided.
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18.发明公开公开(公告)号：US20230345827A1
公开(公告)日：2023-10-26
申请号：US18056342
申请日：2022-11-17
Inventor： Bitnari KIM , Doo-Hyeon MOON , Su-Hyun LEE , Du-Yong PARK , So-Young JUNG , Hae-Yeon KIM , Sang-Hee CHO
IPC: H10K85/60
CPC classification number: H10K85/6572 , H10K85/633 , H10K85/654 , H10K85/6574 , H10K85/6576 , H10K85/615
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：US20220123233A1
公开(公告)日：2022-04-21
申请号：US17285822
申请日：2019-09-25
Inventor： Su-Hyun LEE , Hyo-Nim SHIN , Bitnari KIM , So-Young JUNG
IPC: H01L51/00 , C07D405/14 , C09K11/06 , C07D405/10
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 low driving voltage, high luminous efficiency, high power efficiency and/or improved lifespan properties, compared to conventional organic electroluminescent devices.
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公开(公告)号：US20210328152A1
公开(公告)日：2021-10-21
申请号：US16492647
申请日：2018-03-21
Inventor： Tae-Jin LEE , Dong-Hyung LEE , Bitnari KIM , Hong-Se OH , Hee-Ryong 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 the combination of the light-emitting layer comprising the compound according to the present disclosure and the hole transport zone comprising the compound having a specific HOMO energy level, the organic electroluminescent device having excellent luminous efficiency can be provided.
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