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公开(公告)号：US20240237522A1
公开(公告)日：2024-07-11
申请号：US18286487
申请日：2022-05-27
发明人： Yuji IKENAGA , Takahiro KAI , Kentaro HAYASHI , Mitsuru SAKAI , Yuya SHIMAMOTO
IPC分类号： H10K85/60 , C07D209/86 , C09K11/06 , H10K50/12 , H10K71/16 , H10K101/00
CPC分类号： H10K85/6572 , C07D209/86 , C09K11/06 , H10K71/16 , C09K2211/1018 , H10K50/12 , H10K2101/90
摘要： To provide a practically useful organic EL device having a low driving voltage and also having a high efficiency and a long lifetime, and a deuteride suitable therefor. A deuteride of a compound represented by the following general formula (1), in which a rate of deuteration of hydrogen atoms on two carbazole rings in the compound is 30% or more and a rate of deuteration of hydrogen atoms on aromatic rings in Ar1 and Ar2 in the compound are 40% or more, wherein Ar1 and Ar2 each independently represent a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, or a substituted or unsubstituted linked aromatic group in which two to five of these aromatic rings are linked to each other, and aromatic hydrocarbon groups in the case of these aromatic rings linked are the same as or different from each other.
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公开(公告)号：US20240228496A1
公开(公告)日：2024-07-11
申请号：US18286947
申请日：2022-05-27
发明人： Yuji IKENAGA , Takahiro KAI , Kentaro HAYASHI , Mitsuru SAKAI , Yuya SHIMAMOTO
CPC分类号： C07D487/04 , H10K50/12 , H10K50/15 , H10K50/16 , H10K50/171 , H10K50/181 , H10K85/6572
摘要： To provide a practically useful organic EL device having a low driving voltage and also having a high efficiency and a long lifetime, and a deuteride suitable therefor. A deuteride of a compound represented by the following general formula (1), in which a rate of deuteration of hydrogen atoms on two carbazole rings in the compound is 30% or more, wherein Ar1 and Ar2 each independently represent a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, or a substituted or unsubstituted linked aromatic group in which two to five of these aromatic rings are linked to each other, and aromatic hydrocarbon groups in the case of these aromatic rings linked are the same as or different from each other.
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公开(公告)号：US20230284526A1
公开(公告)日：2023-09-07
申请号：US18012379
申请日：2021-06-29
发明人： Takahiro KAI , Kentaro HAYASHI , Junya OGAWA , Yuji IKENAGA , Ayaka TERADA , Kazunari YOSHIDA , Ikumi KITAHARA , Haruka IZUMI , Katsuhide NOGUCHI , Atsushi KAWADA
CPC分类号： H10K85/6572 , H10K71/16 , H10K85/6574 , H10K85/6576 , H10K50/12
摘要： To provide an organic electroluminescent device having long lifetime characteristics while having a low driving voltage and high power efficiency. The organic electroluminescent device includes one or more light-emitting layers between an anode and a cathode opposed to each other, wherein at least one of the light-emitting layers contains a host material including a first host material, a second host material and a third host material, and a light-emitting dopant material. A LUMO energy of the first host material is −1.95 eV or less, and LM2≥LM3≥LM1 is satisfied under the assumption that LUMO energies of the first host material, the second host material and the third host material are LM1, LM2 and LM3, respectively. A suitable first host material is an indolocarbazole compound represented by general formula (1), a suitable second host material is, for example, a biscarbazole compound represented by general formula (2), and a suitable third host material is an indolocarbazole compound represented by general formula (5).
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公开(公告)号：US20240237523A1
公开(公告)日：2024-07-11
申请号：US18286724
申请日：2022-05-27
发明人： Yuji IKENAGA , Takahiro KAI , Kentaro HAYASHI , Mitsuru SAKAI , Yuya SHIMAMOTO
IPC分类号： H10K85/60 , C07D209/86 , C09K11/06 , H10K50/12 , H10K71/16 , H10K101/00
CPC分类号： H10K85/6572 , C07D209/86 , C09K11/06 , H10K71/16 , C09K2211/1018 , H10K50/12 , H10K2101/90
摘要： To provide a practically useful organic EL device having a low driving voltage and also having a high efficiency and a long lifetime, and a deuteride suitable therefor. A deuteride of a compound represented by the following general formula (1), in which a rate of deuteration of hydrogen atoms on aromatic rings in Ar1 and Ar2 in a compound represented by the following general formula (1) is 40% or more, wherein Ar1 and Ar2 each independently represent a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, or a substituted or unsubstituted linked aromatic group in which two to five of these aromatic rings are linked to each other, and aromatic hydrocarbon groups in the case of these aromatic rings linked are the same as or different from each other.
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5.发明公开公开(公告)号：US20230142222A1
公开(公告)日：2023-05-11
申请号：US17916305
申请日：2021-04-16
发明人： Yuji IKENAGA , Takahiro KAI , Kazunari YOSHIDA , Kentaro HAYASHI
IPC分类号： H10K85/60 , C07D487/04
CPC分类号： H10K85/6572 , C07D487/04 , H10K85/654 , H10K50/11
摘要： To provide an organic EL device having high efficiency and extended lifetime while having a low driving voltage, and a compound suitable therefor. A material for an organic electroluminescent device of the present invention is comprised of an indolocarbazole compound represented by the following general formula (1):
wherein a ring A is a heterocycle represented by formula (1a); Ar1 and Ar2 each represent an aromatic hydrocarbon group, an aromatic heterocyclic group, or a linked aromatic group in which two to five of these aromatic rings are linked to each other; L1 represents an aromatic hydrocarbon group or an aromatic heterocyclic group; L2 represents an aromatic heterocyclic group; Ar3 represents a carbazolyl group; and a+b+c≥1.-
公开(公告)号：US20230128732A1
公开(公告)日：2023-04-27
申请号：US17915749
申请日：2021-04-16
发明人： Yuji IKENAGA , Takahiro KAI , Kazunari YOSHIDA , Kentaro HAYASHI
摘要： To provide an organic EL device having high efficiency and extended lifetime while having a low driving voltage, and a material for an organic electroluminescent device suitable therefor. This material for an organic electroluminescent device is comprised of an indolocarbazole compound represented by the following general formula (1):
[C1] wherein a ring A is a heterocycle represented by formula (1a); Ar1 and Ar2 each represent an aromatic hydrocarbon group, an aromatic heterocyclic group, or a linked aromatic group; L2 represents an aromatic heterocyclic group; Ar3 represents an aromatic hydrocarbon group or a linked aromatic group in which a plurality of these aromatic hydrocarbon groups are linked to each other; and a+b+c≥1.-
公开(公告)号：US20230113101A1
公开(公告)日：2023-04-13
申请号：US17785348
申请日：2020-12-11
发明人： Junya OGAWA , Masashi TADA , Takahiro KAI , Kazunari YOSHIDA , Ikumi KITAHARA
摘要： To provide an organic electroluminescent device having high efficiency while having a driving voltage. This organic electroluminescent device includes an anode, an organic layer and a cathode stacked on a substrate, at least one layer of the organic layer is a light-emitting layer containing a first host, a second host and a light-emitting dopant material, the first host is selected from a compound represented by the following general formula (1), and the second host is selected from a biscarbazole compound binding at a position other than the N-position, an indolocarbazole compound, or a carbazole compound in which a plurality of carbazole rings bind at the N-position. In the formula, a ring A is represented by formula (1b) or (1c), X represents NR, S, O, or CR2, and at least one Y represents N.
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公开(公告)号：US20220348557A1
公开(公告)日：2022-11-03
申请号：US17641882
申请日：2020-09-16
发明人： Junya OGAWA , Takahiro KAI , Masashi TADA , Kazunari YOSHIDA
IPC分类号： C07D401/14 , C07D409/14 , C07D405/14 , C07D209/82 , C07D487/04 , C07F15/00 , C07F7/22 , C07F1/08 , C07D219/16 , C07C317/14 , C07D413/14 , H01L51/00
摘要： To provide an organic electroluminescent device having high efficiency and high driving stability while having a low driving voltage. The organic electroluminescent device has one or more light-emitting layers between an anode and a cathode opposed to each other, wherein at least one of the light-emitting layers is a light-emitting layer composed of a vapor deposition layer containing a first host, a second host and a light-emitting dopant material; the first host is selected from oligopyridine compounds represented by the general formula (1); and the second host is selected from carbazole compounds having two or more carbazole rings, indolocarbazole compounds having an indolocarbazole ring or compounds having a carbazole ring and an indolocarbazole ring.
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