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1. 发明授权

US11552256B2 Light-emitting element, light-emitting device, electronic device, lighting device, and organic compound 有权
公开(公告)号：US11552256B2
公开(公告)日：2023-01-10
申请号：US16570062
申请日：2019-09-13
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Satoshi Seo , Takao Hamada , Tatsuyoshi Takahashi , Yasushi Kitano , Hiroki Suzuki , Hideko Inoue
IPC分类号： H01L51/50 , H01L51/00 , C07D403/14
摘要： To provide a light-emitting element with an improved reliability, a light-emitting element with a high current efficiency (or a high quantum efficiency), and a novel dibenzo[f,h]quinoxaline derivative that is favorably used in a light-emitting element which is one embodiment of the present invention. A light-emitting element includes an EL layer between an anode and a cathode. The EL layer includes a light-emitting layer; the light-emitting layer contains a first organic compound having an electron-transport property and a hole-transport property, a second organic compound having a hole-transport property, and a light-emitting substance; the combination of the first organic compound and the second organic compound forms an exciplex; the HOMO level of the first organic compound is lower than the HOMO level of the second organic compound; and a difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is less than or equal to 0.4 eV.

2. 发明授权

US11121326B2 Organic compound, light-emitting element, light-emitting device, electronic device and lighting device 有权
公开(公告)号：US11121326B2
公开(公告)日：2021-09-14
申请号：US16940724
申请日：2020-07-28
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Hiroki Suzuki , Tomoya Yamaguchi , Hideko Yoshizumi , Satoshi Seo , Tatsuyoshi Takahashi , Hiromitsu Kido , Satomi Watabe
IPC分类号： H01L51/00 , C07D491/048 , H05B33/20 , H01L51/50 , C09K11/06
摘要： A novel organic compound is provided. That is, a novel organic compound that is effective in improving the element characteristics and reliability is provided. The organic compound has a benzofuroquinoxaline skeleton or a benzothienoquinoxaline skeleton. The organic compound is represented by General Formula (G1). In the formula, Q represents O or S, and each of R1 to R8 independently represents any of hydrogen, a halogeno group, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms. At least one of R1 to R8 includes a substituted or unsubstituted condensed aromatic or heteroaromatic ring having 3 to 24 carbon atoms.

3. 发明授权

US10418565B2 Light-emitting element, light-emitting device, electronic device, lighting device, and organic compound 有权
公开(公告)号：US10418565B2
公开(公告)日：2019-09-17
申请号：US15988152
申请日：2018-05-24
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Satoshi Seo , Takao Hamada , Tatsuyoshi Takahashi , Yasushi Kitano , Hiroki Suzuki , Hideko Inoue
IPC分类号： H01L51/50 , H01L51/00 , C07D403/14
摘要： To provide a light-emitting element with an improved reliability, a light-emitting element with a high current efficiency (or a high quantum efficiency), and a novel dibenzo[f,h]quinoxaline derivative that is favorably used in a light-emitting element which is one embodiment of the present invention. A light-emitting element includes an EL layer between an anode and a cathode. The EL layer includes a light-emitting layer; the light-emitting layer contains a first organic compound having an electron-transport property and a hole-transport property, a second organic compound having a hole-transport property, and a light-emitting substance; the combination of the first organic compound and the second organic compound forms an exciplex; the HOMO level of the first organic compound is lower than the HOMO level of the second organic compound; and a difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is less than or equal to 0.4 eV.

4. 发明授权

US10071993B2 Carbazole derivative, light-emitting element material and organic semiconductor material 有权
公开(公告)号：US10071993B2
公开(公告)日：2018-09-11
申请号：US15264062
申请日：2016-09-13
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Hiroki Suzuki , Kyoko Takeda , Sachiko Kawakami , Tsunenori Suzuki , Satoshi Seo , Nobuharu Ohsawa
IPC分类号： C07D409/04 , C07D405/04 , C07D405/14 , C07D409/14 , H01L51/00 , C09K11/02 , H01L51/05 , H01L51/50
CPC分类号： C07D409/04 , C07D405/04 , C07D405/14 , C07D409/14 , C09K11/025 , H01L51/0052 , H01L51/0054 , H01L51/0072 , H01L51/0073 , H01L51/0074 , H01L51/0566 , H01L51/5012 , H01L51/5056 , H01L51/5072
摘要： An object is to provide a novel carbazole derivative that has an excellent carrier-transport property and can be suitably used for a transport layer or as a host material of a light-emitting element. Another object is to provide an organic semiconductor material and a light-emitting element material each using the carbazole derivative. As the carbazole derivative that can achieve the above objects, a carbazole derivative in which a carbazolyl group whose either 2- or 3-position of carbazole is substituted by the 4-position of a dibenzothiophene skeleton or a dibenzofuran skeleton is bonded to aromatic hydrocarbon that has 14 to 70 carbon atoms and includes a condensed tricyclic ring, a condensed tetracyclic ring, a condensed pentacyclic ring, a condensed hexacyclic ring, or a condensed heptacyclic ring has been able to be synthesized.

5. 发明申请

US20180099983A1 Heterocyclic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device 审中-公开
公开(公告)号：US20180099983A1
公开(公告)日：2018-04-12
申请号：US15789210
申请日：2017-10-20
申请人： Semiconductor Energy Laboratory Co, Ltd.
发明人： Hiroki Suzuki , Tsunenori SUZUKI , Satoshi SEO
IPC分类号： C07F5/02 , C07D307/91 , H05B33/10
CPC分类号： C07F5/025 , C07D307/91 , C07D333/76 , C09K11/06 , C09K2211/1007 , C09K2211/1011 , C09K2211/1088 , C09K2211/1092 , H01L51/0052 , H01L51/0058 , H01L51/0059 , H01L51/006 , H01L51/0073 , H01L51/0074 , H01L51/0081 , H01L51/5012 , H01L51/5016 , H05B33/10
摘要： Provided are a heterocyclic compound which emits blue light and is represented by General Formula (G1) below, and a light-emitting element, a light-emitting device, an electronic device and a lighting device which are formed using the heterocyclic compound represented by General Formula (G1) below. The use of the heterocyclic compound represented by General Formula (G1) makes it possible to provide a light-emitting element which has high emission efficiency, and also a light-emitting device, an electronic device and a lighting device which have reduced power consumption.

6. 发明授权

US09537109B2 Light-emitting element, light-emitting device, electronic device, and lighting device 有权
标题翻译：发光元件，发光元件，电子元件及照明器具
公开(公告)号：US09537109B2
公开(公告)日：2017-01-03
申请号：US15014799
申请日：2016-02-03
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Hiroki Suzuki , Satoshi Seo , Sachiko Kawakami , Tsunenori Suzuki
IPC分类号： H01L51/00 , C07D209/86 , C09K11/02 , C09K11/06 , H01L51/50
CPC分类号： H01L51/0072 , C07D209/86 , C09K11/025 , C09K11/06 , C09K2211/1029 , H01L51/0052 , H01L51/0058 , H01L51/006 , H01L51/5012 , H01L51/5028
摘要： Provided is a light-emitting element which has high emission efficiency and a long lifetime and is driven at low voltage. The light-emitting element includes an EL layer between a pair of electrodes. The EL layer includes a compound which gives a first peak at a m/z of around 266.10 in a mass spectrum.
摘要翻译：提供一种发光效率高，寿命长，低电压驱动的发光元件。发光元件包括一对电极之间的EL层。 EL层包括在质谱中以大约266.10的m / z给出第一峰的化合物。

7. 发明申请

US20180108847A1 Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device 审中-公开
公开(公告)号：US20180108847A1
公开(公告)日：2018-04-19
申请号：US15730065
申请日：2017-10-11
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Hiroki Suzuki , Satoshi SEO , Tatsuyoshi TAKAHASHI , Hiromitsu KIDO
IPC分类号： H01L51/00 , H01L51/52 , H01L51/50 , C07D405/10 , C07D409/10
摘要： A novel organic compound is provided. That is, a novel organic compound that is effective in improving the element characteristics and reliability is provided. An organic compound has a benzonaphthofuran skeleton and a triazine skeleton and is represented by General Formula (G1) below. (In the formula, Ar1, Ar2, and Ar3 separately represent a substituted or unsubstituted phenylene group, and each of m and n is independently 0 or 1. R1 and R2 separately represent hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted methylfluorenyl group, a substituted or unsubstituted dimethylfluorenyl group, a substituted or unsubstituted spirofluorenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthrenyl group. B1 to B3 separately represent nitrogen or carbon, and at least one of B1 to B3 represents nitrogen. In addition, A is represented by General Formula (G1-1). Any one of R3 to R12 is bonded to Ar1, and the others separately represent hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted terphenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted methylfluorenyl group, a substituted or unsubstituted dimethylfluorenyl group, a substituted or unsubstituted spirofluorenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted phenanthrenyl group. Furthermore, Q represents S or O.)

8. 发明授权

US09911923B2 Light-emitting element, light-emitting device, electronic device, lighting device, and pyrene-based compound 有权
公开(公告)号：US09911923B2
公开(公告)日：2018-03-06
申请号：US15152091
申请日：2016-05-11
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Hiroki Suzuki , Satoshi Seo , Sachiko Kawakami , Tsunenori Suzuki
IPC分类号： H01L51/50 , H01L51/00 , C07D209/88 , C09K11/02 , C09K11/06 , H01L51/52
CPC分类号： H01L51/006 , C07D209/88 , C09K11/025 , C09K11/06 , C09K2211/1007 , C09K2211/1011 , C09K2211/1014 , C09K2211/1022 , C09K2211/1029 , H01L51/0052 , H01L51/0054 , H01L51/0059 , H01L51/0061 , H01L51/0072 , H01L51/5004 , H01L51/5036 , H01L51/504 , H01L51/5278 , H01L2251/552 , Y02B20/181
摘要： A highly efficient light-emitting element capable of providing a plurality of emission colors is provided, which does not easily deteriorate and can minimize a decrease in external quantum efficiency even when a light-emitting layer has a stacked structure. A light-emitting device, an electronic device, and a lighting device which have low power consumption and long lifetime are provided. A light-emitting element includes a plurality of light-emitting layers stacked between a pair of electrodes. The light-emitting layers each contain a host material and a guest material. The guest materials of the light-emitting layers are substances which have different HOMO levels but have substantially the same LUMO levels and emit light of different colors. A light-emitting device, an electronic device, and a lighting device are fabricated using the light-emitting element.

9. 发明授权

US09837621B2 Compound, light-emitting element, light-emitting device, electronic device, and lighting device 有权
公开(公告)号：US09837621B2
公开(公告)日：2017-12-05
申请号：US14695686
申请日：2015-04-24
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Hideko Inoue , Hiroki Suzuki , Hiromi Seo , Tatsuyoshi Takahashi , Satoshi Seo
IPC分类号： H01L51/00 , C07D409/10 , H01L51/50
CPC分类号： H01L51/0074 , C07D409/10 , H01L51/0059 , H01L51/0072 , H01L51/0085 , H01L51/5016 , H01L51/504 , H01L2251/5384
摘要： 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, A represents any one of a substituted or unsubstituted dibenzothiophenylene group and a substituted or unsubstituted dibenzofuranylene group, X represents a substituted or unsubstituted fluorenyl group, E represents a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group, and Ar represents a substituted or unsubstituted arylene group having 6 to 30 carbon atoms. E-Ar-A-X (G0)

10. 发明授权

US09450188B2 Carbazole derivative, light-emitting element material and organic semiconductor material 有权
标题翻译：咔唑衍生物，发光元素材料和有机半导体材料
公开(公告)号：US09450188B2
公开(公告)日：2016-09-20
申请号：US14171138
申请日：2014-02-03
申请人： Semiconductor Energy Laboratory Co., Ltd.
发明人： Hiroki Suzuki , Kyoko Takeda , Sachiko Kawakami , Tsunenori Suzuki , Satoshi Seo , Nobuharu Ohsawa
IPC分类号： C07D405/04 , C07D409/04 , C07D405/14 , C07D409/14 , H01L51/00 , H01L51/05
CPC分类号： H01L51/0072 , C07D405/04 , C07D405/14 , C07D409/04 , C07D409/14 , C09K11/025 , H01L51/0052 , H01L51/0054 , H01L51/0073 , H01L51/0074 , H01L51/0566 , H01L51/5012 , H01L51/5056 , H01L51/5072
摘要： An object is to provide a novel carbazole derivative that has an excellent carrier-transport property and can be suitably used for a transport layer or as a host material of a light-emitting element. Another object is to provide an organic semiconductor material and a light-emitting element material each using the carbazole derivative. As the carbazole derivative that can achieve the above objects, a carbazole derivative in which a carbazolyl group whose either 2- or 3-position of carbazole is substituted by the 4-position of a dibenzothiophene skeleton or a dibenzofuran skeleton is bonded to aromatic hydrocarbon that has 14 to 70 carbon atoms and includes a condensed tricyclic ring, a condensed tetracyclic ring, a condensed pentacyclic ring, a condensed hexacyclic ring, or a condensed heptacyclic ring has been able to be synthesized.
摘要翻译：本发明的目的是提供一种具有优异载流子传输性能的新型咔唑衍生物，可适用于传输层或作为发光元件的主体材料。另一个目的是提供各自使用咔唑衍生物的有机半导体材料和发光元件材料。作为能够实现上述目的的咔唑衍生物，可以举出二苯并噻吩骨架或二苯并呋喃骨架的4-位取代咔唑的2-或3-位的咔唑基与咔唑衍生物，具有14至70个碳原子，并且可以合成包括稠合的三环，缩合的四环，缩合的五环，缩合的六环或缩合的七环。

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