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公开(公告)号：US20240397818A1
公开(公告)日：2024-11-28
申请号：US18793024
申请日：2024-08-02
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Yui YOSHIYASU , Naoaki Hashimoto , Tatsuyoshi Takahashi , Sachiko Kawakami , Satoshi Seo
Abstract: A novel mixed material for a light-emitting device with improved heat resistance is provided. The mixed material for a light-emitting device includes a first heteroaromatic compound and a second heteroaromatic compound. The first heteroaromatic compound includes a first heteroaromatic ring. The first heteroaromatic ring includes a ring including two or more nitrogen atoms and any one of a benzene ring and a pyridine ring or a ring including a diazine ring or a triazine ring. The second heteroaromatic compound includes a second heteroaromatic ring. The second heteroaromatic ring includes a ring including two or more nitrogen atoms and any one of a benzene ring and a pyridine ring or a ring including a diazine ring or a triazine ring. A structure of the first heteroaromatic ring is different from a structure of the second heteroaromatic ring.
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公开(公告)号：US11974445B2
公开(公告)日：2024-04-30
申请号：US15212842
申请日：2016-07-18
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi Seo , Tatsuyoshi Takahashi , Takeyoshi Watabe , Satomi Mitsumori
IPC: H01L51/50 , C07F15/00 , C09K11/06 , H01L27/32 , H10K50/11 , H10K50/12 , H10K50/15 , H10K50/16 , H10K59/12 , H10K59/38 , H10K59/40 , H10K85/30 , H10K85/60 , H10K101/00 , H10K101/10 , H10K101/30 , H10K101/40
CPC classification number: H10K50/121 , C07F15/0033 , C09K11/06 , H10K50/11 , H10K50/15 , H10K50/16 , H10K59/12 , H10K59/38 , H10K59/40 , C09K2211/1007 , C09K2211/1011 , C09K2211/1059 , C09K2211/185 , H10K85/342 , H10K85/615 , H10K85/633 , H10K85/636 , H10K85/654 , H10K85/657 , H10K85/6572 , H10K85/6576 , H10K2101/10 , H10K2101/30 , H10K2101/40 , H10K2101/80 , H10K2101/90
Abstract: A light-emitting element with high emission efficiency. The light-emitting element includes a first organic compound, a second organic compound, and a guest material. The LUMO level of the first organic compound is lower than the LUMO level of the second organic compound. The HOMO level of the first organic compound is lower than the HOMO level of the second organic compound. The HOMO level of the guest material is higher than the HOMO level of the second organic compound. The energy difference between the LUMO level of the guest material and the HOMO level of the guest material is larger than the energy difference between the LUMO level of the first organic compound and the HOMO level of the second organic compound. The guest material has a function of converting triplet excitation energy into light emission. The first organic compound and the second organic compound form an exciplex.
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公开(公告)号：US11937439B2
公开(公告)日：2024-03-19
申请号：US17733025
申请日：2022-04-29
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi Seo , Hiromi Seo , Tatsuyoshi Takahashi , Takahiro Ishisone
IPC: H01L51/50 , H10K50/11 , H10K50/13 , H10K50/81 , H10K50/82 , H10K85/30 , H10K85/60 , H10K101/00 , H10K101/10
CPC classification number: H10K50/13 , H10K50/11 , H10K50/81 , H10K50/82 , H10K85/342 , H10K85/633 , H10K85/636 , H10K85/6572 , H10K85/6576 , H10K85/341 , H10K85/346 , H10K85/615 , H10K85/624 , H10K85/626 , H10K2101/10 , H10K2101/27 , H10K2101/90
Abstract: A multicolor light-emitting element using fluorescence and phosphorescence, which has a small number of manufacturing steps owing to a relatively small number of layers to be formed and is advantageous for practical application can be provided. In addition, a multicolor light-emitting element using fluorescence and phosphorescence, which has favorable emission efficiency is provided. A light-emitting element which includes a light-emitting layer having a stacked-layer structure of a first light-emitting layer exhibiting light emission from a first exciplex and a second light-emitting layer exhibiting phosphorescence is provided.
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公开(公告)号：US20230210005A1
公开(公告)日：2023-06-29
申请号：US18116481
申请日：2023-03-02
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Hideko Inoue , Miki Kanamoto , Hiromi Seo , Satoshi Seo , Tatsuyoshi Takahashi , Tomoka Nakagawa
IPC: H10K85/60 , C07D491/048
CPC classification number: H10K85/6576 , C07D491/048 , H10K85/615 , H10K85/657 , H10K85/6572 , H10K85/6574 , H10K50/11
Abstract: A light-emitting element having high emission efficiency is provided. A light-emitting element having a low driving voltage is provided. A novel compound which can be used for a transport layer or as a host material or a light-emitting material of a light-emitting element is provided. A novel compound with a benzofuropyrimidine skeleton is provided. Also provided is a light-emitting element which includes the compound with the benzofuropyrimidine skeleton between a pair of electrodes.
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公开(公告)号：US11088332B2
公开(公告)日：2021-08-10
申请号：US16809951
申请日：2020-03-05
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Miki Kanamoto , Hideko Inoue , Tatsuyoshi Takahashi , Hiromitsu Kido , Satoshi Seo
Abstract: A compound includes a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton, a first substituent, and a second substituent. Each of the first substituent and the second substituent includes a furan skeleton, a thiophene skeleton, or a pyrrole skeleton. The first substituent is bonded to a pyrimidine ring included in the benzofuropyrimidine skeleton or a pyrimidine ring included in the benzothienopyrimidine skeleton. The second substituent is bonded to a benzene ring included in the benzofuropyrimidine skeleton or a benzene ring included in the benzothienopyrimidine skeleton. The light-emitting element includes the compound.
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Patent Agency Ranking
公开(公告)号：US10811617B2
公开(公告)日：2020-10-20
申请号：US15996602
申请日：2018-06-04
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Sachiko Kawakami , Yoshimi Ishiguro , Tatsuyoshi Takahashi , Takao Hamada , Hiromi Seo , Satoshi Seo
IPC: H01L51/00 , H01L51/50 , C09K11/02 , C07D493/04
Abstract: A novel heterocyclic compound is provided. In particular, a novel heterocyclic compound which can improve the element characteristics of the light-emitting element is provided. The heterocyclic compound is represented by a general formula (G1) DBqAr1nAr2-A (G1) in which a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group and a substituted or unsubstituted benzobisbenzofuranyl group are bonded to each other via a substituted or unsubstituted arylene group. In the general formula (G1), DBq represents a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group, Ar1 represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, n represents 0 or 1, Ar2 represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and A represents a substituted or unsubstituted benzobisbenzofuranyl group. When the arylene group represented by Ar1 and Ar2 has substituents, the substituents may be bonded to each other to form a ring.
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7.发明授权公开(公告)号：US10686144B2
公开(公告)日：2020-06-16
申请号：US15943776
申请日：2018-04-03
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Sachiko Kawakami , Hiromi Seo , Tatsuyoshi Takahashi , Satoshi Seo
Abstract: To provide a novel compound which can be used as a host material in which a light-emitting substance is dispersed. To provide a light-emitting element having a long lifetime. A compound represented by General Formula (G0). In the formula, A1 represents a dibenzo[f,h]quinoxalinyl group, A2 represents a benzo[b]naphtho[2,3-d]furanyl group, and Ar represents an arylene group having 6 to 25 carbon atoms. The dibenzo[f,h]quinoxalinyl group, the benzo[b]naphtho[2,3-d]furanyl group, and the arylene group are separately unsubstituted or substituted by any one of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group having 6 to 13 carbon atoms. A1-Ar-A2 (G0)
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公开(公告)号：US10586932B2
公开(公告)日：2020-03-10
申请号：US15166585
申请日：2016-05-27
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunsuke Hosoumi , Tatsuyoshi Takahashi , Takahiro Ishisone , Satoshi Seo
IPC: H01L51/00 , C07D491/048 , C07D495/04 , C09K11/06 , C09K11/02 , H01L51/50
Abstract: A light-emitting element having high emission efficiency is provided. A light-emitting element which has high emission efficiency without using a rare metal as a light-emitting material is provided. A light-emitting element includes a first electrode, a second electrode, and a layer between the first electrode and the second electrode. The layer contains a first organic compound and a second organic compound. The second organic compound has a carbazole skeleton and a substituted or unsubstituted bivalent aromatic hydrocarbon group. The second organic compound further has a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton. The aromatic hydrocarbon group is bonded to the carbazole skeleton. The aromatic hydrocarbon group is bonded to the benzofuropyrimidine skeleton or the benzothienopyrimidine skeleton. The first organic compound and the second organic compound can form an exciplex.
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公开(公告)号：US10446766B2
公开(公告)日：2019-10-15
申请号：US16197441
申请日：2018-11-21
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kaori Ogita , Satoshi Seo , Hiromi Seo , Tatsuyoshi Takahashi
Abstract: A novel organic compound that forms an exciplex emitting light with high efficiency is provided. An organic compound with a triarylamine skeleton in which the three aryl groups of the triarylamine skeleton are a p-biphenyl group, a fluoren-2-yl group, and a phenyl group to which a dibenzofuranyl group or a dibenzothiophenyl group is bonded. By the use of the organic compound and an organic compound with an electron-transport property, an exciplex that emits light with extremely high efficiency can be formed.
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10.发明授权公开(公告)号：US09997725B2
公开(公告)日：2018-06-12
申请号：US15186646
申请日：2016-06-20
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Sachiko Kawakami , Yoshimi Ishiguro , Tatsuyoshi Takahashi , Takao Hamada , Hiromi Seo , Satoshi Seo
IPC: C07D493/02 , H01L51/00 , C09K11/02 , C07D493/04 , H01L51/50
CPC classification number: H01L51/0073 , C07D493/04 , C09K11/025 , H01L51/0059 , H01L51/0072 , H01L51/0074 , H01L51/0085 , H01L51/5016 , H01L2251/5384
Abstract: A novel heterocyclic compound is provided. In particular, a novel heterocyclic compound which can improve the element characteristics of the light-emitting element is provided. The heterocyclic compound is represented by a general formula (G1) DBqAr1nAr2-A (G1) in which a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group and a substituted or unsubstituted benzobisbenzofuranyl group are bonded to each other via a substituted or unsubstituted arylene group. In the general formula (G1), DBq represents a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group, Ar1 represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, n represents 0 or 1, Ar2 represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and A represents a substituted or unsubstituted benzobisbenzofuranyl group. When the arylene group represented by Ar1 and Ar2 has substituents, the substituents may be bonded to each other to form a ring.
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