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公开(公告)号：US20240132439A1
公开(公告)日：2024-04-25
申请号：US18374838
申请日：2023-09-29
发明人： Sachiko Kawakami , Kazuki KAJIYAMA
IPC分类号： C07C211/55 , C07D307/91 , C07D307/92 , C07D333/74 , C07D333/76 , C07D411/12 , H10K85/60
CPC分类号： C07C211/55 , C07D307/91 , C07D307/92 , C07D333/74 , C07D333/76 , C07D411/12 , H10K85/615 , H10K85/633 , H10K85/6574 , H10K85/6576
摘要： A highly heat-resistant organic compound with favorable hole-transport properties is provided. The organic compound is represented by General Formula (G1). In General Formula (G1), X represents a sulfur atom or an oxygen atom, and R21 to R25 and R27 to R30 each independently represent any one of hydrogen, halogen, a nitrile group, an alkenyl group, a vinyl group, an alkynyl group, an ethynyl group, a straight-chain alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an alkylsilyl group having 3 to 10 carbon atoms, an aryl group having 6 to 30 carbon atoms, and a heteroaryl group having 2 to 30 carbon atoms. Ar1 represents an aryl group having 6 to 30 carbon atoms or a heteroaryl group having 2 to 30 carbon atoms. Ar2 is represented by General Formula (G1-1).
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公开(公告)号：US10862042B2
公开(公告)日：2020-12-08
申请号：US16699991
申请日：2019-12-02
发明人： Harue Osaka , Satoko Shitagaki , Tsunenori Suzuki , Nobuharu Ohsawa , Sachiko Kawakami , Satoshi Seo
IPC分类号： C09B57/00 , H01L51/00 , H05B33/14 , H05B33/20 , C07C211/54 , C07C209/10 , H01L51/50
摘要： An object is to provide a light-emitting element having high light-emission efficiency by provision of a novel fluorene derivative as represented by General Formula (G1) below In the formula, R1 to R8 independently represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted biphenyl group. Further, α1 to α4 independently represent any of a substituted or unsubstituted arylene group having 6 to 12 carbon atoms. Furthermore, Ar1 and Ar2 independently represent any of an aryl group having 6 to 13 carbon atoms in a ring and Ar3 represents an alkyl group having 1 to 6 carbon atoms or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms. J, k, m, and n each independently represent 0 or 1.
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公开(公告)号：US10854682B2
公开(公告)日：2020-12-01
申请号：US15866879
申请日：2018-01-10
摘要： A light-emitting device, an electronic device, or a lighting device with low power consumption and high reliability is provided. The light-emitting device includes a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element. The first to fourth light-emitting elements include the same EL layer between an anode and a cathode. The EL layer includes a first light-emitting layer and a second light-emitting layer. The first light-emitting layer contains a fluorescent substance. The peak wavelength of an emission spectrum of the fluorescent substance in a toluene solution of the fluorescent substance is 440 nm to 460 nm, preferably 440 nm to 455 nm. The second light-emitting layer contains a phosphorescent substance. The first light-emitting element exhibits blue emission. The second light-emitting element exhibits green emission. The third light-emitting element exhibits red emission. The fourth light-emitting element exhibits yellow emission.
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公开(公告)号：US10439146B2
公开(公告)日：2019-10-08
申请号：US15223244
申请日：2016-07-29
发明人： Kaori Ogita , Sachiko Kawakami , Tsunenori Suzuki , Naoaki Hashimoto , Yusuke Takita , Satoshi Seo
IPC分类号： H01L51/00 , C07D307/77 , C09K11/02 , C09K11/06 , H01L51/50
摘要： In an organic compound, two groups each including a benzonaphthofuranylamine skeleton are bonded to a central skeleton including a fluorene skeleton. The organic compound emits favorable blue light. Furthermore, the organic compound has a high hole-transport property.
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公开(公告)号：US10079345B2
公开(公告)日：2018-09-18
申请号：US15068949
申请日：2016-03-14
IPC分类号： H01L51/00 , C07C211/61 , C07D209/86 , C07D209/88 , C09K11/06 , H05B33/14 , H01L51/50
CPC分类号： H01L51/006 , C07C211/61 , C07C2603/24 , C07D209/86 , C07D209/88 , C09K11/06 , C09K2211/1007 , C09K2211/1011 , C09K2211/1014 , C09K2211/1029 , H01L51/0052 , H01L51/0058 , H01L51/0059 , H01L51/0061 , H01L51/0072 , H01L51/0081 , H01L51/5004 , H01L51/5012 , H01L2251/552 , H01L2251/558 , H05B33/14
摘要： An object is to provide a novel anthracene derivative. Another object is to provide a light-emitting element with high luminous efficiency. Yet another object is to provide a light-emitting element with a long lifetime. Still another object is to provide a light-emitting device and an electronic device having a long lifetime by using the light-emitting elements of the present invention. The anthracene derivative represented by General Formula (1) is provided. The ability of the anthracene derivative represented by General Formula (1) to exhibit high luminous efficiency allows the production of a light-emitting element with high luminous efficiency and a long lifetime.
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公开(公告)号：US10056559B2
公开(公告)日：2018-08-21
申请号：US15894151
申请日：2018-02-12
发明人： Sachiko Kawakami , Harue Nakashima
CPC分类号： H01L51/006 , C07C211/61 , C07C2603/94 , C07C2603/97 , C07D209/86 , C07D209/88 , C09K11/06 , C09K2211/1011 , C09K2211/1014 , C09K2211/1022 , C09K2211/1029 , H01L27/3248 , H01L27/3262 , H01L29/4908 , H01L51/0056 , H01L51/0058 , H01L51/0061 , H01L51/0071 , H01L51/0072 , H01L51/0096 , H01L51/5012 , H01L51/5048 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5092 , H01L51/5203 , H01L51/5218 , H01L51/5221 , H01L2251/301 , H01L2251/308 , H05B33/14
摘要： It is an object of the present invention to provide a material having a high Tg and a wide energy gap. The present invention provides a spirofluorene derivative represented by General Formula 1. (In the formula, R1 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a group represented by General Formula 2. Each of R2 and R3 is either hydrogen or an alkyl group having 1 to 4 carbon atoms and may be identical or different. R4 is an aryl group having 6 to 15 carbon atoms. Each of R5 and R6 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 15 carbon atoms and may be identical or different.)
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公开(公告)号：US09972790B2
公开(公告)日：2018-05-15
申请号：US14712483
申请日：2015-05-14
发明人： Harue Osaka , Sachiko Kawakami , Nobuharu Ohsawa , Satoshi Seo
IPC分类号： H01L51/00 , C07D209/86 , C09K11/06 , H05B33/14 , H01L51/50
CPC分类号： H01L51/0072 , C07D209/86 , C09K11/06 , C09K2211/1007 , C09K2211/1011 , C09K2211/1029 , H01L51/0002 , H01L51/0021 , H01L51/0052 , H01L51/5012 , H05B33/14
摘要： Novel anthracene derivatives, novel materials capable of blue light emission with high color purity, and a light-emitting element, a light-emitting device, and an electronic device using any of the novel materials. The anthracene derivative represented by general formula (1) is provided. With the anthracene derivative, a light-emitting element with high emission efficiency can be provided. With the anthracene derivative, a light-emitting element emitting blue light with high color purity can be provided. In the formula, A1 represents a substituted or unsubstituted phenyl group, B1 represents any of an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted phenyl group, α represents any of a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenyl-4,4′-diyl group, and R1 to R9 individually represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted phenyl group.
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8.发明授权公开(公告)号：US09960369B2
公开(公告)日：2018-05-01
申请号：US14699731
申请日：2015-04-29
CPC分类号： H01L51/0073 , C07D405/10 , H01L27/3244 , H01L51/0052 , H01L51/0058 , H01L51/0072 , H01L51/5016 , H01L51/5028 , H01L51/5072 , H01L51/5237 , H04R1/028 , H04R1/083
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, 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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9.发明申请公开(公告)号：US20180083199A1
公开(公告)日：2018-03-22
申请号：US15810725
申请日：2017-11-13
摘要： A novel heterocyclic compound that can be used as a host material in which a light-emitting substance is dispersed. A light-emitting element having a long lifetime. A heterocyclic compound in which a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group is bonded to a substituted or unsubstituted arylene group having 6 to 25 carbon atoms which is bonded to any one of the 8-11 positions of a substituted or unsubstituted benzo[b]naphtho[1,2-d]furan skeleton.
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10.发明授权公开(公告)号：US09911923B2
公开(公告)日：2018-03-06
申请号：US15152091
申请日：2016-05-11
发明人： Hiroki Suzuki , Satoshi Seo , Sachiko Kawakami , Tsunenori Suzuki
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.
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