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公开(公告)号：US11672136B2
公开(公告)日：2023-06-06
申请号：US17178417
申请日：2021-02-18
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Nobuharu Ohsawa , Yusuke Nonaka , Takahiro Ishisone , Satoshi Seo , Takuya Kawata
IPC: H10K50/13 , H10K50/11 , H10K59/32 , H10K50/12 , H10K50/15 , H10K50/16 , H10K85/30 , H10K101/00 , H10K85/60 , H10K102/00
CPC classification number: H10K50/131 , H10K50/11 , H10K50/121 , H10K50/15 , H10K50/16 , H10K59/32 , H10K85/342 , H10K85/611 , H10K85/615 , H10K85/622 , H10K85/626 , H10K85/633 , H10K85/636 , H10K85/654 , H10K85/6572 , H10K85/6576 , H10K2101/10 , H10K2101/27 , H10K2101/90 , H10K2102/351
Abstract: An object of one embodiment of the present invention is to provide a multicolor light-emitting element that utilizes fluorescence and phosphorescence and is advantageous for practical application. The light-emitting element has a stacked-layer structure of a first light-emitting layer containing a host material and a fluorescent substance, a separation layer containing a substance having a hole-transport property and a substance having an electron-transport property, and a second light-emitting layer containing two kinds of organic compounds that form an exciplex and a substance that can convert triplet excitation energy into luminescence. Note that a light-emitting element in which light emitted from the first light-emitting layer has an emission spectrum peak on the shorter wavelength side than an emission spectrum peak of the second light-emitting layer is more effective.
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公开(公告)号：US10930873B2
公开(公告)日：2021-02-23
申请号：US16454296
申请日：2019-06-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Nobuharu Ohsawa , Yusuke Nonaka , Takahiro Ishisone , Satoshi Seo , Takuya Kawata
Abstract: An object of one embodiment of the present invention is to provide a multicolor light-emitting element that utilizes fluorescence and phosphorescence and is advantageous for practical application. The light-emitting element has a stacked-layer structure of a first light-emitting layer containing a host material and a fluorescent substance, a separation layer containing a substance having a hole-transport property and a substance having an electron-transport property, and a second light-emitting layer containing two kinds of organic compounds that form an exciplex and a substance that can convert triplet excitation energy into luminescence. Note that a light-emitting element in which light emitted from the first light-emitting layer has an emission spectrum peak on the shorter wavelength side than an emission spectrum peak of the second light-emitting layer is more effective.
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公开(公告)号：US10374186B2
公开(公告)日：2019-08-06
申请号：US15983223
申请日：2018-05-18
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Nobuharu Ohsawa , Yusuke Nonaka , Takahiro Ishisone , Satoshi Seo , Takuya Kawata
Abstract: An object of one embodiment of the present invention is to provide a multicolor light-emitting element that utilizes fluorescence and phosphorescence and is advantageous for practical application. The light-emitting element has a stacked-layer structure of a first light-emitting layer containing a host material and a fluorescent substance, a separation layer containing a substance having a hole-transport property and a substance having an electron-transport property, and a second light-emitting layer containing two kinds of organic compounds that form an exciplex and a substance that can convert triplet excitation energy into luminescence. Note that a light-emitting element in which light emitted from the first light-emitting layer has an emission spectrum peak on the shorter wavelength side than an emission spectrum peak of the second light-emitting layer is more effective.
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公开(公告)号：US20180269418A1
公开(公告)日：2018-09-20
申请号：US15983223
申请日：2018-05-18
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Nobuharu Ohsawa , Yusuke Nonaka , Takahiro Ishisone , Satoshi Seo , Takuya Kawata
CPC classification number: H01L51/5044 , H01L27/3209 , H01L51/0051 , H01L51/0052 , H01L51/0054 , H01L51/0058 , H01L51/006 , H01L51/0061 , H01L51/0067 , H01L51/0072 , H01L51/0074 , H01L51/0085 , H01L51/5016 , H01L51/5028 , H01L51/5056 , H01L51/5072 , H01L2251/5376 , H01L2251/5384 , H01L2251/558
Abstract: An object of one embodiment of the present invention is to provide a multicolor light-emitting element that utilizes fluorescence and phosphorescence and is advantageous for practical application. The light-emitting element has a stacked-layer structure of a first light-emitting layer containing a host material and a fluorescent substance, a separation layer containing a substance having a hole-transport property and a substance having an electron-transport property, and a second light-emitting layer containing two kinds of organic compounds that form an exciplex and a substance that can convert triplet excitation energy into luminescence. Note that a light-emitting element in which light emitted from the first light-emitting layer has an emission spectrum peak on the shorter wavelength side than an emission spectrum peak of the second light-emitting layer is more effective.
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Patent Agency Ranking
公开(公告)号：US10026917B2
公开(公告)日：2018-07-17
申请号：US15162675
申请日：2016-05-24
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Nobuharu Ohsawa , Yusuke Nonaka , Takahiro Ishisone , Satoshi Seo , Takuya Kawata
Abstract: An object of one embodiment of the present invention is to provide a multicolor light-emitting element that utilizes fluorescence and phosphorescence and is advantageous for practical application. The light-emitting element has a stacked-layer structure of a first light-emitting layer containing a host material and a fluorescent substance, a separation layer containing a substance having a hole-transport property and a substance having an electron-transport property, and a second light-emitting layer containing two kinds of organic compounds that form an exciplex and a substance that can convert triplet excitation energy into luminescence. Note that a light-emitting element in which light emitted from the first light-emitting layer has an emission spectrum peak on the shorter wavelength side than an emission spectrum peak of the second light-emitting layer is more effective.
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公开(公告)号：US20180158885A1
公开(公告)日：2018-06-07
申请号：US15865482
申请日：2018-01-09
Applicant: Semiconductor Energy Laboratory Co, Ltd.
Inventor： Yuichi Yanagisawa , Takuya Kawata
IPC: H01L27/32 , H01L29/786 , H01L51/52
CPC classification number: H01L27/3244 , H01L29/78648 , H01L29/7869 , H01L29/78696 , H01L51/524 , H01L51/5253 , H01L2251/5338
Abstract: A highly reliable display device. A first flexible substrate and a second flexible substrate overlap each other with a display element positioned therebetween. Side surfaces of at least one of the first substrate and the second substrate which overlap each other are covered with a high molecular material having a light-transmitting property. The high molecular material is more flexible than the first substrate and the second substrate.
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公开(公告)号：US09831353B2
公开(公告)日：2017-11-28
申请号：US14974977
申请日：2015-12-18
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Takuya Kawata , Masashi Oota , Yusuke Nonaka , Shunpei Yamazaki
IPC: H01L21/02 , H01L29/786 , H01L29/04 , C23C14/08 , C23C14/34 , C23C14/35 , C23C14/56 , H01J37/32 , H01J37/34 , H01L21/67 , H01L21/8258 , H01L27/092 , H01L27/06
CPC classification number: H01L29/78693 , C23C14/08 , C23C14/3414 , C23C14/352 , C23C14/564 , C23C14/566 , H01J37/32899 , H01J37/3408 , H01J37/3417 , H01J37/3447 , H01L21/0243 , H01L21/02554 , H01L21/02565 , H01L21/0262 , H01L21/02631 , H01L21/02639 , H01L21/02647 , H01L21/67207 , H01L21/8258 , H01L27/0629 , H01L27/0688 , H01L27/092 , H01L29/04 , H01L29/78696
Abstract: The semiconductor device includes a first insulator over a substrate, a first oxide semiconductor over the first insulator, a second oxide semiconductor over the first oxide semiconductor, a first conductor and a second conductor in contact with the second oxide semiconductor, a third oxide semiconductor on the second oxide semiconductor and the first and second conductors, a second insulator over the third oxide semiconductor, and a third conductor over the second insulator. At least one of the first oxide semiconductor, the second oxide semiconductor, and the third oxide semiconductor has a crystallinity peak that corresponds to a (hkl) plane (h=0, k=0, l is a natural number) observed by X-ray diffraction using a Cu K-alpha radiation as a radiation source. The peak appears at a diffraction angle 2 theta greater than or equal to 31.3 degrees and less than 33.5 degrees.
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公开(公告)号：US20160343920A1
公开(公告)日：2016-11-24
申请号：US15164051
申请日：2016-05-25
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi Seo , Hisao Ikeda , Takuya Kawata
CPC classification number: H01L33/58 , H01L33/22 , H01L33/56 , H01L51/5275
Abstract: A solid-state light-emitting element includes a structure body having a property of transmitting visible light and an uneven structure on each of the top side and the bottom side thereof; a high refractive index material layer provided on one surface of the structure body; and a light-emitting body with a refractive index of greater than or equal to 1.6 provided over the high refractive index material layer. One surface of the high refractive index material layer is flatter than the other surface thereof which is in contact with the structure body. The refractive index of the high refractive index material layer is greater than or equal to 1.6. The refractive index of the structure body is greater than 1.0 and less than that of the high refractive index material layer.
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公开(公告)号：US09356246B2
公开(公告)日：2016-05-31
申请号：US14577166
申请日：2014-12-19
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Takuya Kawata
IPC: H01L51/00 , H01L29/786 , H01L51/52
CPC classification number: H01L27/1225 , H01L27/1218 , H01L27/1266 , H01L29/7869 , H01L51/0097 , H01L51/5253 , H01L2251/5338 , Y02E10/549
Abstract: A bendable display device, lighting device, or electronic device which is unlikely to be broken when handled. The display device, lighting device, or electronic device includes two flexible substrates, and at least one of the two flexible substrates contains a plurality of glass fibers extending in one direction. Accordingly, the display device, lighting device, or electronic device has low flexibility in the one direction and is unlikely to be broken when handled.
Abstract translation: 可弯曲显示装置，照明装置或处理时不易破损的电子装置。 显示装置，照明装置或电子装置包括两个柔性基板，并且两个柔性基板中的至少一个包含沿一个方向延伸的多个玻璃纤维。 因此，显示装置，照明装置或电子装置在一个方向上具有低的灵活性，并且在处理时不太可能被破坏。
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