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1.发明公开公开(公告)号：US20240306493A1
公开(公告)日：2024-09-12
申请号：US18662138
申请日：2024-05-13
发明人： Sachiko KAWAKAMI , Anna TADA , Yusuke TAKITA , Tsunenori SUZUKI , Naoaki HASHIMOTO , Satoshi SEO
IPC分类号： H10K85/60 , C07C211/54 , C07C211/58 , H10K50/11 , H10K50/15 , H10K50/16 , H10K59/12 , H10K59/17 , H10K71/00 , H10K71/13 , H10K101/10 , H10K101/30 , H10K102/00
CPC分类号： H10K85/633 , C07C211/54 , C07C211/58 , H10K85/626 , H10K85/631 , C07C2601/16 , C07C2602/10 , H10K50/11 , H10K50/156 , H10K50/16 , H10K59/12 , H10K59/17 , H10K71/00 , H10K71/13 , H10K2101/10 , H10K2101/30 , H10K2102/311
摘要： An object of one embodiment of the present invention is to provide a novel organic compound. The organic compound is a triarylamine derivative. The triarylamine derivative has an aryl group including a skeleton in which a naphthyl group is bonded to a naphthylene group. The other two aryl groups are each independently a phenyl group, a biphenyl group, or a terphenyl group. These groups may each have a substituent. As the substituent, an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 6 carbon atoms can be selected.
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2.发明公开公开(公告)号：US20240292642A1
公开(公告)日：2024-08-29
申请号：US18586676
申请日：2024-02-26
发明人： Satoshi SEO , Toshiki SASAKI , Ryohei YAMAOKA , Shiho NOMURA
IPC分类号： H10K50/11 , H10K50/818 , H10K50/828
CPC分类号： H10K50/11 , H10K50/818 , H10K50/828
摘要： Alight-emitting device with high emission efficiency is provided. Alight-emitting device with a high blue index (BI) is provided. A light-emitting device with low power consumption is provided. A light-emitting device including a first electrode and a second electrode which are a reflective electrode and a semi-transmissive and semi-reflective electrode, and an EL layer sandwiched between the first electrode and the second electrode, where the EL layer contains an emission center substance, where when the emission center substance in the EL layer includes only one kind of substance, photon energy of a peak wavelength of light emitted from the light-emitting device is designed from an average value of photon energy of light emitted by the emission center substance in a solution state and emission edge energy on a short wavelength side of an emission spectrum of the emission center substance in the solution state.
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公开(公告)号：US20240215443A1
公开(公告)日：2024-06-27
申请号：US18525103
申请日：2023-11-30
IPC分类号： H10K85/60 , C07D209/86 , C07F7/08 , C09K11/06 , H10K85/40
CPC分类号： H10K85/6572 , C07D209/86 , C07F7/0812 , C09K11/06 , H10K85/40 , H10K50/11
摘要： A highly efficient and highly reliable light-emitting device is provided. The light-emitting device includes an organic compound layer between a pair of electrodes. The organic compound layer includes a light-emitting layer, the light-emitting layer includes a first organic compound, a second organic compound, and a light-emitting substance, the first organic compound contains deuterium, and in a PL measurement of a mixed layer of the first organic compound and the second organic compound, a spectrum of an exciplex is observed at room temperature, and a spectrum of the exciplex is not observed at a temperature in a temperature range of 4 K to 80 K, inclusive.
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公开(公告)号：US20240206306A1
公开(公告)日：2024-06-20
申请号：US18592944
申请日：2024-03-01
发明人： Taisuke KAMADA , Ryo HATSUMI , Daisuke KUBOTA , Naoaki HASHIMOTO , Tsunenori SUZUKI , Harue OSAKA , Satoshi SEO
IPC分类号： H10K65/00 , H10K39/32 , H10K50/16 , H10K50/17 , H10K50/86 , H10K59/12 , H10K59/40 , H10K101/30
CPC分类号： H10K65/00 , H10K39/32 , H10K50/16 , H10K50/17 , H10K50/865 , H10K59/12 , H10K59/40 , H10K2101/30
摘要： An object is to provide a highly reliable display unit having a function of sensing light. The display unit includes a light-receiving device and a light-emitting device. The light-receiving device includes an active layer between a pair of electrodes. The light-emitting device includes a hole-injection layer, a light-emitting layer, and an electron-transport layer between a pair of electrodes. The light-receiving device and the light-emitting device share one of the electrodes, and may further share another common layer between the pair of electrodes. The hole-injection layer is in contact with an anode and contains a first compound and a second compound. The electron-transport property of the electron-transport layer is low; hence, the light-emitting layer is less likely to have excess electrons. Here, the first compound is the material having a property of accepting electrons from the second compound.
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公开(公告)号：US20240206209A1
公开(公告)日：2024-06-20
申请号：US18589868
申请日：2024-02-28
发明人： Satoshi SEO , Takeyoshi WATABE , Satomi MITSUMORI
IPC分类号： H10K50/11 , C07D241/38 , C07D403/12 , C07D405/10 , C09K11/02 , C09K11/06 , H10K50/13 , H10K59/35 , H10K85/30 , H10K85/60 , H10K101/00 , H10K101/10 , H10K101/30 , H10K101/40
CPC分类号： H10K50/11 , C07D241/38 , C07D403/12 , C07D405/10 , C09K11/02 , C09K11/06 , H10K85/342 , H10K85/633 , H10K85/636 , H10K85/6572 , H10K85/6574 , C09K2211/1007 , C09K2211/1011 , C09K2211/1014 , C09K2211/1022 , C09K2211/1029 , C09K2211/1033 , C09K2211/1044 , C09K2211/1048 , C09K2211/1051 , C09K2211/1059 , C09K2211/1088 , C09K2211/1092 , C09K2211/185 , C09K2211/188 , H10K50/131 , H10K59/35 , H10K85/615 , H10K2101/10 , H10K2101/27 , H10K2101/30 , H10K2101/40 , H10K2101/90 , Y02P20/582
摘要： To provide a light-emitting element with high emission efficiency and low driving voltage. The light-emitting element includes a guest material and a host material. A LUMO level of the guest material is lower than a LUMO level of the host material. An energy difference between the LUMO level and a HOMO level of the guest material is larger than an energy difference between the LUMO level and a HOMO level of the host material. The guest material has a function of converting triplet excitation energy into light emission. An energy difference between the LUMO level of the guest material and the HOMO level of the host material is larger than or equal to energy of light emission of the guest material.
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公开(公告)号：US20240206206A1
公开(公告)日：2024-06-20
申请号：US18287918
申请日：2022-04-18
发明人： Tsunenori SUZUKI , Nobuharu OHSAWA , Satoshi SEO
CPC分类号： H10K50/11 , H10K50/15 , H10K50/16 , H10K59/123 , H10K59/35 , H10K59/771 , H10K85/654 , H10K85/6572 , H10K85/6576
摘要： A light-emitting device with a high resolution and favorable characteristics manufactured by a photolithography method is provided. The light-emitting apparatus includes first and second light-emitting devices. The first and second light-emitting devices are adjacent to each other. The first light-emitting device includes a first EL layer A and a second EL layer. The second light-emitting device includes a first EL layer B and the second EL layer. The first EL layer A and the first EL layer B are independent of each other. The second EL layer is shared by the first and second light-emitting devices. An end surface of the first EL layer A on the first EL layer B side and an end surface of the first EL layer B on the first EL layer A side face each other. The first EL layer A includes a light-emitting layer. The light-emitting layer includes a light-emitting material, first and second organic compounds. The first organic compound is an organic compound having an electron-transport property. The second organic compound is an organic compound having a hole-transport property.
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7.发明公开公开(公告)号：US20240164134A1
公开(公告)日：2024-05-16
申请号：US18423895
申请日：2024-01-26
发明人： Yuta KAWANO , Airi UEDA , Takeyoshi WATABE , Nobuharu OHSAWA , Keito TOSU , Harue OSAKA , Satoshi SEO , Ryo NARUKAWA , Shiho NOMURA
CPC分类号： H10K50/16 , H10K59/00 , H10K59/12 , H10K85/631
摘要： A light-emitting device with high emission efficiency is provided. The light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a light-emitting layer and an electron-transport layer; the light-emitting layer includes a light-emitting material; the electron-transport layer includes an organic compound having an electron-transport property and a metal complex of an alkali metal; the ordinary refractive index of the organic compound having an electron-transport property in a peak wavelength of light emitted from the light-emitting material is greater than or equal to 1.50 and less than or equal to 1.75; and the ordinary refractive index of the metal complex of an alkali metal in the peak wavelength of the light emitted from the light-emitting material is greater than or equal to 1.45 and less than or equal to 1.70.
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8.发明公开公开(公告)号：US20240130228A1
公开(公告)日：2024-04-18
申请号：US18276328
申请日：2022-01-31
CPC分类号： H10K85/6572 , C09K11/06 , H10K85/342 , H10K85/615 , H10K85/633 , H10K85/636 , H10K50/166
摘要： A light-emitting device with high heat resistance in a manufacturing process is to be provided. The light-emitting device includes a second electrode over a first electrode with an EL layer sandwiched therebetween; the EL layer includes at least a light-emitting layer, a first electron-transport layer, and a second electron-transport layer; the first electron-transport layer is over the light-emitting layer; the light-emitting device includes an insulating layer in contact with a side surface of the light-emitting layer and a side surface of the first electron-transport layer; the second electron-transport layer is over the first electron-transport layer; the insulating layer is positioned between the second electron-transport layer and the side surface of the light-emitting layer and the side surface of the first electron-transport layer; and the first electron-transport layer contains a heteroaromatic compound including at least one heteroaromatic ring and an organic compound different from the heteroaromatic compound.
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9.发明公开公开(公告)号：US20240121979A1
公开(公告)日：2024-04-11
申请号：US18276165
申请日：2022-02-01
IPC分类号： H10K50/844 , H10K50/16 , H10K50/17
CPC分类号： H10K50/844 , H10K50/166 , H10K50/171 , H10K85/633
摘要： A light-emitting device with high heat resistance in a manufacturing process is to be provided. The light-emitting device includes a second electrode over a first electrode with an EL layer sandwiched therebetween; the EL layer includes at least a light-emitting layer, a first electron-transport layer, a second electron-transport layer, and an electron-injection layer; the first electron-transport layer is over the light-emitting layer; the second electron-transport layer is over the first electron-transport layer; the light-emitting device includes an insulating layer in contact with a side surface of the light-emitting layer, a side surface of the first electron-transport layer, and a side surface of the second electron-transport layer; the electron-injection layer is over the second electron-transport layer; the insulating layer is positioned between the electron-injection layer and the side surface of the light-emitting layer, the side surface of the first electron-transport layer, and the side surface of the second electron-transport layer; and the second electron-transport layer contains a heteroaromatic compound including at least one heteroaromatic ring and an organic compound different from the heteroaromatic compound.
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公开(公告)号：US20240107883A1
公开(公告)日：2024-03-28
申请号：US18528235
申请日：2023-12-04
IPC分类号： H10K85/60 , C07D403/10
CPC分类号： H10K85/6572 , C07D403/10 , H10K85/626 , H10K85/654 , H10K85/657 , H10K85/6576 , H10K50/165
摘要： A novel mixed material with improved resistance is provided. The mixed material includes a first heteroaromatic compound and a second heteroaromatic compound, and the first heteroaromatic compound is represented by any one of General Formulae (G1) to (G6). The second heteroaromatic compound is not represented by the same general formula as that of the first heteroaromatic compound.
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