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公开(公告)号：US11889712B2
公开(公告)日：2024-01-30
申请号：US17237262
申请日：2021-04-22
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Yuta Kawano , Airi Ueda , Takeyoshi Watabe , Nobuharu Ohsawa , Keito Tosu , Harue Osaka , Satoshi Seo , Ryo Narukawa , Shiho Nomura
CPC classification number: H10K50/16 , H10K59/00 , H10K59/12 , H10K85/00 , H10K85/30 , H10K85/615 , H10K85/631 , H10K85/654 , H10K85/6572 , H10K85/6574
Abstract: 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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12.发明授权公开(公告)号：US11430958B2
公开(公告)日：2022-08-30
申请号：US16249209
申请日：2019-01-16
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Tomoya Yamaguchi , Hideko Yoshizumi , Hiromitsu Kido , Airi Ueda , Satoshi Seo
Abstract: A novel organic compound is provided. That is, a novel organic compound that is effective in improving element characteristics and reliability is provided. The organic compound is represented by General Formula (G1) having a dibenzobenzofuroquinoxaline skeleton or a dibenzobenzothienoquinoxaline skeleton. In General Formula (G1), Q represents O or S, at least one of R1 to R12 represents a first group having a substituted or unsubstituted condensed aromatic ring or condensed heteroaromatic ring having 3 to 30 carbon atoms, and the other or others of R1 to R12 each independently represent any one of hydrogen, a halogeno group, a hydroxy group, an amino group, a nitro group, and a group having 1 to 50 carbon atoms.
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Patent Agency Ranking
公开(公告)号：US12232342B2
公开(公告)日：2025-02-18
申请号：US17552638
申请日：2021-12-16
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hiromi Seo , Takeyoshi Watabe , Airi Ueda , Yuta Kawano , Nobuharu Ohsawa , Hiromitsu Kido , Satoshi Seo
IPC: H10K50/11 , H10K30/20 , H10K50/15 , H10K59/12 , H10K85/60 , H10K101/30 , H10K101/40
Abstract: An organic semiconductor device with low driving voltage is provided. The organic semiconductor device includes a layer containing an organic compound between a pair of electrodes. The layer containing an organic compound includes a hole-transport region. The hole-transport region includes a first layer and a second layer. The first layer is positioned between the anode and the second layer. When a potential gradient of a surface potential of an evaporated film is set as GSP (mV/nm), a value obtained by subtracting GSP of an organic compound in the second layer from GSP of an organic compound in the first layer is less than or equal to 20 (mV/nm).
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公开(公告)号：US11950447B2
公开(公告)日：2024-04-02
申请号：US17299386
申请日：2019-11-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takeyoshi Watabe , Airi Ueda , Nobuharu Ohsawa , Satoshi Seo
IPC: H01L51/50 , C09K11/06 , H10K50/818 , H10K50/828 , H10K50/852 , H10K50/858 , H10K85/30 , H10K85/60 , H10K102/00
CPC classification number: H10K50/852 , C09K11/06 , H10K50/818 , H10K50/828 , H10K50/858 , C09K2211/1044 , C09K2211/185 , H10K85/342 , H10K85/615 , H10K85/626 , H10K85/633 , H10K85/636 , H10K85/6572 , H10K85/6576 , H10K2102/3026 , H10K2102/351
Abstract: A novel light-emitting device with a microcavity structure which can improve the emission efficiency compared to the conventional one is provided. In a light-emitting device with a microcavity structure that emits light in a near-infrared range, reflectance of one or both of a first electrode (reflective electrode) and a second electrode (semi-transmissive and semi-reflective electrode) with respect to light in a near-infrared range (e.g., light with a wavelength of 850 nm) is higher than the reflectance thereof with respect to light in a visible light range (greater than or equal to 400 nm and less than 750 nm).
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公开(公告)号：US11903232B2
公开(公告)日：2024-02-13
申请号：US17435452
申请日：2020-02-24
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Takeyoshi Watabe , Airi Ueda , Nobuharu Ohsawa , Satoshi Seo
IPC: H10K50/19 , H10K50/852 , H10K85/30 , G06V40/13 , H10K50/818 , H10K50/828 , H10K71/00 , H10K102/00
CPC classification number: H10K50/19 , H10K50/852 , H10K85/342 , G06V40/1318 , H10K50/818 , H10K50/828 , H10K71/00 , H10K2102/351
Abstract: A light-emitting device is provided. The light-emitting device includes an intermediate layer, a first light-emitting unit, and a second light-emitting unit. The intermediate layer includes a region interposed between the first light-emitting unit and the second light-emitting unit. The intermediate layer has a function of supplying an electron to one of the first light-emitting unit and the second light-emitting unit and supplying a hole to the other. The first light-emitting unit includes a first light-emitting layer, the first light-emitting layer includes a first light-emitting material, the second light-emitting unit includes a second light-emitting layer, the second light-emitting layer includes a second light-emitting material, the second light-emitting layer has a first distance from the first light-emitting layer, and the first distance is longer than or equal to 5 nm and shorter than or equal to 65 nm.
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公开(公告)号：US11482687B2
公开(公告)日：2022-10-25
申请号：US17091206
申请日：2020-11-06
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei Yamazaki , Takeyoshi Watabe , Tomohiro Kubota , Airi Ueda , Satoshi Seo , Nobuharu Ohsawa , Yuko Kubota
Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.
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17.发明申请公开(公告)号：US20220242834A1
公开(公告)日：2022-08-04
申请号：US17578782
申请日：2022-01-19
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Keito Tosu , Yuta Kawano , Airi Ueda , Takeyoshi Watabe , Nobuharu Ohsawa , Stoshi Seo , Harue Osaka , Yuko Kubota
IPC: C07D251/24 , H01L51/00 , H01L51/50 , H01L51/52
Abstract: An electron-transport layer material with a low refractive index is provided. An organic compound represented by General Formula (G1) is provided. In General Formula (G1), one to three of Q1 to Q3 represent N and when one or two of Q1 to Q3 represent N, the remaining two or one of Q1 to Q3 represent CH. Furthermore, R0 represents any of hydrogen, an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 3 to 10 carbon atoms, and a group represented by Formula (G1-1). At least one of R1 to R15 represents a substituted or unsubstituted group including any one of a pyrimidinyl group, a pyrazinyl group, and a triazinyl group, and the others each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 3 to 10 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 14 carbon atoms forming a ring, and a substituted or unsubstituted pyridinyl group.
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