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51.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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52.发明公开公开(公告)号：US20230371374A1
公开(公告)日：2023-11-16
申请号：US18310062
申请日：2023-05-01
Inventor： Sang-Hee CHO , Young-Jae KIM , Hae-Yeon KIM , So-Young JUNG , Su-Hyun LEE , Mi-Ja LEE , So-Mi PARK , Young-Gil KIM , Hong-Se OH , Hyo-Soon PARK
CPC classification number: H10K85/6574 , H10K85/633 , H10K85/6576 , H10K85/615 , H10K85/6572 , H10K85/622 , H10K85/654 , H10K85/40 , H10K85/30 , C09K11/02 , C09K11/06 , C07B2200/05 , C09K2211/1022 , C09K2211/188
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 according to the present disclosure as host materials, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or significantly improved lifespan characteristics can be provided.
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53.发明公开公开(公告)号：US20230157168A1
公开(公告)日：2023-05-18
申请号：US17976418
申请日：2022-10-28
Inventor： So-Young JUNG , Su-Hyun LEE , Jin-Ri HONG , Sang-Hee CHO , Mi-Ja LEE , Seung-Hyun YOON
IPC: H01L51/00 , C07F7/08 , C07D263/57 , C07D413/12 , H01L51/50
CPC classification number: H01L51/0073 , H01L51/0067 , H01L51/0052 , H01L51/0054 , H01L51/0074 , H01L51/0072 , H01L51/0064 , H01L51/0094 , H01L51/0071 , H01L51/0061 , H01L51/006 , H01L51/0059 , H01L51/0056 , C07F7/0812 , C07D263/57 , C07D413/12 , H01L51/5056 , H01L51/5012
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.
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公开(公告)号：US20230020540A1
公开(公告)日：2023-01-19
申请号：US17679220
申请日：2022-02-24
Inventor： Seon-Woo LEE , Su-Hyun LEE , Young-Kwang KIM , Hee-Choon AHN , Doo-Hyeon MOON , Ji-Song JUN , Jae-Hoon SHIM , Kyoung-Jin PARK , Nam-Kyun KIM , Kyung-Hoon CHOI , Chi-Sik KIM , Young-Jun CHO , Bit-na-ri KIM
Abstract: The present disclosure relates to an organic electroluminescent device comprising an anode, a cathode, and an organic layer between the anode and the cathode, wherein the organic layer comprises one or more light-emitting layers; and at least one light-emitting layer comprises one or more dopant compounds and two or more host compounds. The organic electroluminescent device of the present disclosure has low driving voltage, high color purity, high luminous efficiency, and a long lifespan.
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公开(公告)号：US20220356193A1
公开(公告)日：2022-11-10
申请号：US17214253
申请日：2021-03-26
Inventor： So-Young Jung , Ji-Song JUN , Su-Hyun LEE , Sang-Hee CHO , Jin-Ri HONG
IPC: C07D519/00 , H01L51/00
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.
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Patent Agency Ranking
公开(公告)号：US20220281894A1
公开(公告)日：2022-09-08
申请号：US17675393
申请日：2022-02-18
Inventor： Ji-Song JUN , Kyoung-Jin PARK , Chi-Sik KIM , Sang-Hee CHO , Su-Hyun LEE
IPC: C07D517/00 , C07D519/00 , 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. 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 a single host material or by including a specific combination of compounds according to the present disclosure as a plurality of host materials.
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公开(公告)号：US20220173322A1
公开(公告)日：2022-06-02
申请号：US17528997
申请日：2021-11-17
Inventor： Hyo-Soon PARK , Young-Jae KIM , Sang-Hee CHO , Su-Hyun LEE
IPC: H01L51/00
Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials comprising the same, and an organic electroluminescent device. By comprising the organic electroluminescent compound and/or a plurality of host materials comprising the same according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan property can be provided.
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公开(公告)号：US20220135875A1
公开(公告)日：2022-05-05
申请号：US17572837
申请日：2022-01-11
Inventor： Young-Mook LIM , Su-Hyun LEE , Hyun-Ju KANG , Chi-Sik KIM
IPC: C09K11/06 , C07D401/14 , H01L51/50 , C07D487/04 , C07D491/048 , H01L51/00 , C07D495/04 , C07D403/14 , H05B33/10
Abstract: The present invention relates to phosphorous host materials and an organic electroluminescent device comprising the same. By using the phosphorous host material of the present invention, an organic electroluminescent device having significantly improved operational lifespan can be produced.
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公开(公告)号：US20220102645A1
公开(公告)日：2022-03-31
申请号：US17264745
申请日：2019-06-28
Inventor： Bitnari Kim , Su-Hyun LEE , So-Young JUNG , Tae-Jun HAN , Hyo-Soon PARK , Sang-Hee CHO , Jeong-Eun YANG
IPC: H01L51/00
Abstract: The present disclosure relates to a plurality of host materials comprising at least one of a first host compound represented by formula 1 and at least one of a second host compound represented by formula 2 and an organic electroluminescent device comprising the same. By comprising the host materials, an organic electroluminescent device having low driving voltage and/or a high luminous efficiency and/or long lifespan can be provided.
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公开(公告)号：US20220102644A1
公开(公告)日：2022-03-31
申请号：US17532265
申请日：2021-11-22
Inventor： Kyoung-Jin PARK , Tae-Jin LEE , Jae-Hoon SHIM , Yoo Jin DOH , Hee-Choon AHN , Young-Kwang KIM , Doo-Hyeon MOON , Jeong-Eun YANG , Su-Hyun LEE , Chi-Sik KIM , Ji-Song JUN
Abstract: The present invention relates to an organic electroluminescent device. The organic electroluminescent device of the present invention shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
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