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公开(公告)号：US11985892B2
公开(公告)日：2024-05-14
申请号：US16645104
申请日：2018-09-05
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Takeyoshi Watabe , Ryohei Yamaoka , Satoshi Seo , Nobuharu Ohsawa
IPC: H01L29/08 , H10K85/30 , H10K85/60 , B82Y20/00 , H10K50/11 , H10K50/115 , H10K50/16 , H10K50/858 , H10K101/10 , H10K101/40
CPC classification number: H10K85/6572 , H10K85/342 , H10K85/631 , H10K85/654 , H10K85/6576 , B82Y20/00 , H10K50/11 , H10K50/115 , H10K50/16 , H10K50/858 , H10K2101/10 , H10K2101/40
Abstract: A light-emitting device with high outcoupling efficiency is provided.
In the light-emitting device including a light-emitting layer between a pair of electrodes, a low refractive index layer containing an organic compound and an inorganic compound is provided between the light-emitting layer and an anode or between the light-emitting layer and a cathode, and the low refractive index layer has a refractive index of less than or equal to 1.80 at a wavelength of light extracted from the light-emitting layer.-
公开(公告)号：US10510806B2
公开(公告)日：2019-12-17
申请号：US15825831
申请日：2017-11-29
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Ryohei Yamaoka , Satoshi Seo , Shogo Uesaka , Shiho Nomura
IPC: H01L27/32 , H01L51/52 , H01L51/50 , G09G3/3258 , G09G3/3233
Abstract: A highly reliable light-emitting element which can keep favorable characteristics throughout long-time driving is provided. In addition, a light-emitting element with high color purity and high emission efficiency is provided. Furthermore, a light-emitting device having a long lifetime in which the light-emitting element is used is provided. Moreover, an electronic device and a lighting device each of which has a long lifetime are provided. In the light-emitting element including an EL layer between a pair of electrodes, the EL layer has a stacked-layer structure of a first light-emitting layer, a second light-emitting layer, and a third light-emitting layer. The light-emitting layer includes an electron-transport material, a hole-transport material, and a light-emitting material. Furthermore, light emitted from the first light-emitting layer and light emitted from the third light-emitting layer have the same color and each have a longer wavelength than light emitted from the second light-emitting layer.
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13.发明申请公开(公告)号：US20180248146A1
公开(公告)日：2018-08-30
申请号：US15910374
申请日：2018-03-02
Applicant: Semiconductor Energy Laboratory Co, Ltd.
Inventor： Satoshi Seo , Toshiki Sasaki , Ryohei Yamaoka
CPC classification number: H01L51/5016 , H01L27/323 , H01L27/3244 , H01L51/0078 , H01L51/0081 , H01L51/0085 , H01L51/0087 , H01L51/0089 , H01L51/5036 , H01L51/5218 , H01L51/56
Abstract: A novel light-emitting element is provided. A light-emitting element that emits red light with high color purity and has high emission efficiency is provided. A full-color light-emitting device having low power consumption is provided. In the light-emitting element that exhibits white light emission, the emission wavelength range of red light is a specific range on the longer wavelength side than the conventional emission wavelength range of red light that is usually used, and an optical element having a specific transmittance in the specific wavelength range is used.
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公开(公告)号：US20180190727A1
公开(公告)日：2018-07-05
申请号：US15900021
申请日：2018-02-20
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi Seo , Toshiki Sasaki , Ryohei Yamaoka
CPC classification number: H01L27/3211 , H01L27/3206 , H01L27/3209 , H01L27/3213 , H01L27/322 , H01L27/3223 , H01L27/323 , H01L27/3244 , H01L51/5016 , H01L51/5036 , H01L51/5044 , H01L51/5218 , H01L51/5221 , H01L51/5265 , H01L51/5275 , H01L51/5281
Abstract: Provided is a light-emitting device that can display an image with a wide color gamut or a novel light-emitting element. The light-emitting device includes a plurality of light-emitting elements each of which includes an EL layer between a pair of electrodes. Light obtained from a first light-emitting element through a first color filter has, on chromaticity coordinates (x, y), a chromaticity x of greater than 0.680 and less than or equal to 0.720 and a chromaticity y of greater than or equal to 0.260 and less than or equal to 0.320. Light obtained from a second light-emitting element through a second color filter has, on chromaticity coordinates (x, y), a chromaticity x of greater than or equal to 0.130 and less than or equal to 0.250 and a chromaticity y of greater than 0.710 and less than or equal to 0.810. Light obtained from a third light-emitting element through a third color filter has, on chromaticity coordinates (x, y), a chromaticity x of greater than or equal to 0.120 and less than or equal to 0.170 and a chromaticity y of greater than or equal to 0.020 and less than 0.060.
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公开(公告)号：US09905617B2
公开(公告)日：2018-02-27
申请号：US15598537
申请日：2017-05-18
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi Seo , Toshiki Sasaki , Ryohei Yamaoka
CPC classification number: H01L27/3211 , H01L27/3206 , H01L27/3209 , H01L27/3213 , H01L27/322 , H01L27/3223 , H01L27/323 , H01L27/3244 , H01L51/5016 , H01L51/5036 , H01L51/5044 , H01L51/5218 , H01L51/5221 , H01L51/5265 , H01L51/5275 , H01L51/5281
Abstract: Provided is a light-emitting device that can display an image with a wide color gamut or a novel light-emitting element. The light-emitting device includes a plurality of light-emitting elements each of which includes an EL layer between a pair of electrodes. Light obtained from a first light-emitting element through a first color filter has, on chromaticity coordinates (x, y), a chromaticity x of greater than 0.680 and less than or equal to 0.720 and a chromaticity y of greater than or equal to 0.260 and less than or equal to 0.320. Light obtained from a second light-emitting element through a second color filter has, on chromaticity coordinates (x, y), a chromaticity x of greater than or equal to 0.130 and less than or equal to 0.250 and a chromaticity y of greater than 0.710 and less than or equal to 0.810. Light obtained from a third light-emitting element through a third color filter has, on chromaticity coordinates (x, y), a chromaticity x of greater than or equal to 0.120 and less than or equal to 0.170 and a chromaticity y of greater than or equal to 0.020 and less than 0.060.
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Patent Agency Ranking
16.发明授权Light-emitting element, light-emitting device, electronic device, and lighting device 有权发光元件，发光元件，电子元件及照明器具公开(公告)号：US09379345B2
公开(公告)日：2016-06-28
申请号：US14513982
申请日：2014-10-14
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi Seo , Shogo Uesaka , Ryohei Yamaoka
CPC classification number: H01L51/504 , H01L27/3209 , H01L27/3244 , H01L51/0052 , H01L51/0054 , H01L51/0059 , H01L51/006 , H01L51/0061 , H01L51/0072 , H01L51/0074 , H01L51/0085 , H01L51/5012 , H01L51/5016 , H01L51/5056 , H01L51/5072 , H01L51/5278 , H01L2251/5361 , H01L2251/5376 , H01L2251/5384
Abstract: A light-emitting element with high reliability that can keep favorable characteristics after long-time driving is provided. In addition, a light-emitting device having a long lifetime including the light-emitting element is provided. Moreover, an electronic device and a lighting device having a long lifetime are provided. In a light-emitting element including an EL layer between a pair of electrodes, a light-emitting layer included in the EL layer has a stacked-layer structure which is different from the conventional structure, whereby the light-emitting element can keep favorable characteristics after long-time driving even in the case where carrier balance is changed over time due to driving of the light-emitting element or a light-emitting region is shifted due to the change.
Abstract translation: 提供了长时间驱动后能够保持良好特性的高可靠性的发光元件。 此外，提供了包括发光元件的具有长寿命的发光器件。 此外，提供了具有长寿命的电子设备和照明设备。 在包括一对电极之间的EL层的发光元件中，包括在EL层中的发光层具有与传统结构不同的堆叠层结构，由此发光元件可以保持有利的特性 即使在由于发光元件的驱动而导致载流子平衡随时间变化的情况下长时间驱动，或者发光区域由于变化而偏移。
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17.发明申请Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device 有权发光元件，发光装置，电子装置和照明装置公开(公告)号：US20150102331A1
公开(公告)日：2015-04-16
申请号：US14513982
申请日：2014-10-14
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Satoshi Seo , Shogo Uesaka , Ryohei Yamaoka
IPC: H01L51/50
CPC classification number: H01L51/504 , H01L27/3209 , H01L27/3244 , H01L51/0052 , H01L51/0054 , H01L51/0059 , H01L51/006 , H01L51/0061 , H01L51/0072 , H01L51/0074 , H01L51/0085 , H01L51/5012 , H01L51/5016 , H01L51/5056 , H01L51/5072 , H01L51/5278 , H01L2251/5361 , H01L2251/5376 , H01L2251/5384
Abstract: A light-emitting element with high reliability that can keep favorable characteristics after long-time driving is provided. In addition, a light-emitting device having a long lifetime including the light-emitting element is provided. Moreover, an electronic device and a lighting device having a long lifetime are provided. In a light-emitting element including an EL layer between a pair of electrodes, a light-emitting layer included in the EL layer has a stacked-layer structure which is different from the conventional structure, whereby the light-emitting element can keep favorable characteristics after long-time driving even in the case where carrier balance is changed over time due to driving of the light-emitting element or a light-emitting region is shifted due to the change.
Abstract translation: 提供了长时间驱动后能够保持良好特性的高可靠性的发光元件。 此外，提供了包括发光元件的具有长寿命的发光器件。 此外，提供了具有长寿命的电子设备和照明设备。 在包括一对电极之间的EL层的发光元件中，包括在EL层中的发光层具有与传统结构不同的堆叠层结构，由此发光元件可以保持有利的特性 即使在由于发光元件的驱动而导致载流子平衡随时间变化的情况下长时间驱动，或者发光区域由于变化而偏移。
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公开(公告)号：US11063225B2
公开(公告)日：2021-07-13
申请号：US16473053
申请日：2017-12-19
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Takeyoshi Watabe , Satoshi Seo , Nozomi Komatsu , Ryohei Yamaoka , Harue Osaka , Kunihiko Suzuki , Shunsuke Hosoumi
Abstract: A highly reliable light-emitting element having high emission efficiency is provided. The light-emitting element includes a light-emitting layer including a first organic compound and a guest material. The first organic compound has a substituted or unsubstituted carbazole skeleton. In the light-emitting layer, the weight ratio of a hydrocarbon group substitution product in which at least one of hydrogen atoms in the first organic compound is substituted by a hydrocarbon group having 1 to 6 carbon atoms to the first organic compound is greater than 0 and less than or equal to 0.1.
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公开(公告)号：US10340470B2
公开(公告)日：2019-07-02
申请号：US15436263
申请日：2017-02-17
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Toshiki Sasaki , Riho Kataishi , Ryohei Yamaoka
Abstract: A light-emitting element includes a cathode, an anode, a light-emitting layer, a first layer, a second layer, and a third layer. The first layer is provided between the cathode and the light-emitting layer. The second layer is provided between the light-emitting layer and the third layer and includes a region in contact with the third layer. The third layer is provided between the second layer and the anode and includes a region in contact with the anode. The first layer and the third layer each include an alkali metal or an alkaline earth metal. The second layer includes a material that has a function of transporting an electron.
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20.发明申请公开(公告)号：US20180151630A1
公开(公告)日：2018-05-31
申请号：US15825831
申请日：2017-11-29
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Ryohei Yamaoka , Satoshi Seo , Shogo Uesaka , Shiho Nomura
IPC: H01L27/32 , H01L51/52 , H01L51/50 , G09G3/3258 , G09G3/3233
CPC classification number: H01L27/3209 , G09G3/3233 , G09G3/3258 , G09G2300/0842 , H01L51/5016 , H01L51/504 , H01L51/5056 , H01L51/5203 , H01L51/5265 , H01L51/5278
Abstract: A highly reliable light-emitting element which can keep favorable characteristics throughout long-time driving is provided. In addition, a light-emitting element with high color purity and high emission efficiency is provided. Furthermore, a light-emitting device having a long lifetime in which the light-emitting element is used is provided. Moreover, an electronic device and a lighting device each of which has a long lifetime are provided. In the light-emitting element including an EL layer between a pair of electrodes, the EL layer has a stacked-layer structure of a first light-emitting layer, a second light-emitting layer, and a third light-emitting layer. The light-emitting layer includes an electron-transport material, a hole-transport material, and a light-emitting material. Furthermore, light emitted from the first light-emitting layer and light emitted from the third light-emitting layer have the same color and each have a longer wavelength than light emitted from the second light-emitting layer.
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