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公开(公告)号:US20200059581A1
公开(公告)日:2020-02-20
申请号:US16661582
申请日:2019-10-23
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Yoshiharu Hirakata , Nobuharu OHSAWA , Hisao IKEDA , Kazuhiko FUJITA , Akihiro KAITA
Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.
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公开(公告)号:US20180084170A1
公开(公告)日:2018-03-22
申请号:US15829410
申请日:2017-12-01
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Yoshiharu Hirakata , Nobuharu OHSAWA , Hisao IKEDA , Kazuhiko FUJITA , Akihiro KAITA
Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.
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公开(公告)号:US20160227087A1
公开(公告)日:2016-08-04
申请号:US15095432
申请日:2016-04-11
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Yoshiharu Hirakata , Nobuharu OHSAWA , Hisao IKEDA , Kazuhiko FUJITA , Akihiro KAITA
CPC classification number: H04N5/2256 , G03B15/03 , G03B15/05 , G03B2215/0567 , H01L51/5212 , H01L51/5275 , H01L2227/326 , H01L2251/5338 , H01L2251/5361 , H01L2251/5376 , H04N5/23293 , H04N5/2354 , H05B33/08 , H05B33/0815
Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.
Abstract translation: 提供小型发光装置。 提供了不太可能产生阴影的发光装置。 已经考虑了包括用于提供脉冲恒定电流的开关电路和提供有脉冲恒定电流的发光面板的结构。
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公开(公告)号:US20240187720A1
公开(公告)日:2024-06-06
申请号:US18537311
申请日:2023-12-12
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Yoshiharu HIRAKATA , Nobuharu OHSAWA , Hisao IKEDA , Kazuhiko FUJITA , Akihiro KAITA
IPC: H04N23/56 , G03B15/03 , G03B15/05 , H04N23/63 , H04N23/74 , H05B44/00 , H10K50/814 , H10K50/858
CPC classification number: H04N23/56 , G03B15/03 , G03B15/05 , H04N23/63 , H04N23/74 , H05B44/00 , H10K50/814 , H10K50/858 , G03B2215/0567 , H10K59/1201
Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.
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公开(公告)号:US20200243482A1
公开(公告)日:2020-07-30
申请号:US16845386
申请日:2020-04-10
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Daiki NAKAMURA , Yusuke NISHIDO , Satoshi SEO , Toshiki SASAKI , Ryohei YAMAOKA , Akihiro KAITA
IPC: H01L25/065 , H01L27/32
Abstract: A display panel includes a plurality of light-emitting elements. Light emitted from a first light-emitting element has a CIE 1931 chromaticity coordinate x of greater than 0.680 and less than or equal to 0.720 and a CIE 1931 chromaticity coordinate y of greater than or equal to 0.260 and less than or equal to 0.320. Light emitted from a second light-emitting element has a CIE 1931 chromaticity coordinate x of greater than or equal to 0.130 and less than or equal to 0.250 and a CIE 1931 chromaticity coordinate y of greater than 0.710 and less than or equal to 0.810. Light emitted from a third light-emitting element has a CIE 1931 chromaticity coordinate x of greater than or equal to 0.120 and less than or equal to 0.170 and a CIE 1931 chromaticity coordinate y of greater than or equal to 0.020 and less than 0.060.
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公开(公告)号:US20180242414A1
公开(公告)日:2018-08-23
申请号:US15958305
申请日:2018-04-20
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Daiki NAKAMURA , Nobuharu OHSAWA , Hisao IKEDA , Akihiro KAITA , Shunpei YAMAZAKI
CPC classification number: H05B33/0815 , G03B15/05 , H04N5/2256 , H04N5/2351 , H04N5/2354 , H05B33/08 , H05B33/0803 , H05B33/0818 , H05B33/0845 , H05B33/0854 , H05B33/0896 , H05B37/0209 , H05B37/0218
Abstract: To provide a light-emitting device whose amount of light can be adjusted, or the like. The amount of light emitted from the light-emitting device can be adjusted by controlling the magnitude of the constant current pulse by a control signal. Specifically, the light-emitting device includes a constant current supply configured to be supplied with a control signal and a control pulse signal and configured to supply a constant current pulse; a control device configured to supply the control signal; a driver circuit configured to supply the control pulse signal; and a light-emitting panel configured to be supplied with the constant current pulse. The control signal is a signal for controlling the magnitude of the constant current pulse. The light-emitting panel includes a light-emitting element. The current density of the light-emitting element is greater than or equal to 10 mA/cm2 and less than or equal to 1000 mA/cm2.
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公开(公告)号:US20150003034A1
公开(公告)日:2015-01-01
申请号:US14315675
申请日:2014-06-26
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Daiki NAKAMURA , Nobuharu OHSAWA , Hisao IKEDA , Akihiro KAITA , Shunpei YAMAZAKI
CPC classification number: H05B33/0815 , G03B15/05 , H04N5/2256 , H04N5/2351 , H04N5/2354 , H05B33/08 , H05B33/0803 , H05B33/0818 , H05B33/0845 , H05B33/0854 , H05B33/0896 , H05B37/0209 , H05B37/0218
Abstract: To provide a light-emitting device whose amount of light can be adjusted, or the like. The amount of light emitted from the light-emitting device can be adjusted by controlling the magnitude of the constant current pulse by a control signal. Specifically, the light-emitting device includes a constant current supply configured to be supplied with a control signal and a control pulse signal and configured to supply a constant current pulse; a control device configured to supply the control signal; a driver circuit configured to supply the control pulse signal; and a light-emitting panel configured to be supplied with the constant current pulse. The control signal is a signal for controlling the magnitude of the constant current pulse. The light-emitting panel includes a light-emitting element. The current density of the light-emitting element is greater than or equal to 10 mA/cm2 and less than or equal to 1000 mA/cm2.
Abstract translation: 提供可以调节光量的发光装置等。 可以通过控制信号来控制恒定电流脉冲的大小来调节从发光装置发射的光量。 具体地说,该发光装置包括配置为被提供控制信号和控制脉冲信号并被配置为提供恒定电流脉冲的恒流源, 控制装置,被配置为提供所述控制信号; 配置为提供控制脉冲信号的驱动电路; 以及配置为被提供有恒定电流脉冲的发光面板。 控制信号是用于控制恒定电流脉冲的幅度的信号。 发光面板包括发光元件。 发光元件的电流密度大于或等于10mA / cm 2且小于或等于1000mA / cm 2。
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公开(公告)号:US20140347555A1
公开(公告)日:2014-11-27
申请号:US14281014
申请日:2014-05-19
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Yoshiharu Hirakata , Nobuharu OHSAWA , Hisao IKEDA , Kazuhiko FUJITA , Akihiro KAITA
CPC classification number: H04N5/2256 , G03B15/03 , G03B15/05 , G03B2215/0567 , H01L51/5212 , H01L51/5275 , H01L2227/326 , H01L2251/5338 , H01L2251/5361 , H01L2251/5376 , H04N5/23293 , H04N5/2354 , H05B33/08 , H05B33/0815
Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.
Abstract translation: 提供小型发光装置。 提供了不太可能产生阴影的发光装置。 已经考虑了包括用于提供脉冲恒定电流的开关电路和提供有脉冲恒定电流的发光面板的结构。
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公开(公告)号:US20240121497A1
公开(公告)日:2024-04-11
申请号:US18526638
申请日:2023-12-01
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Yoshiharu HIRAKATA , Nobuharu OHSAWA , Hisao IKEDA , Kazuhiko FUJITA , Akihiro KAITA
IPC: H04N23/56 , G03B15/03 , G03B15/05 , H04N23/63 , H04N23/74 , H05B44/00 , H10K50/814 , H10K50/858
CPC classification number: H04N23/56 , G03B15/03 , G03B15/05 , H04N23/63 , H04N23/74 , H05B44/00 , H10K50/814 , H10K50/858 , G03B2215/0567 , H10K59/1201
Abstract: A small light-emitting device is provided. A light-emitting device which is less likely to produce a shadow is provided. A structure including a switching circuit for supplying a pulsed constant current and a light-emitting panel supplied with the pulsed constant current has been conceived.
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公开(公告)号:US20210125962A1
公开(公告)日:2021-04-29
申请号:US16952303
申请日:2020-11-19
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Daiki NAKAMURA , Yusuke NISHIDO , Satoshi SEO , Toshiki SASAKI , Ryohei YAMAOKA , Akihiro KAITA
IPC: H01L25/065 , H01L27/32
Abstract: A display panel includes a plurality of light-emitting elements. Light emitted from a first light-emitting element has a CIE 1931 chromaticity coordinate x of greater than 0.680 and less than or equal to 0.720 and a CIE 1931 chromaticity coordinate y of greater than or equal to 0.260 and less than or equal to 0.320. Light emitted from a second light-emitting element has a CIE 1931 chromaticity coordinate x of greater than or equal to 0.130 and less than or equal to 0.250 and a CIE 1931 chromaticity coordinate y of greater than 0.710 and less than or equal to 0.810. Light emitted from a third light-emitting element has a CIE 1931 chromaticity coordinate x of greater than or equal to 0.120 and less than or equal to 0.170 and a CIE 1931 chromaticity coordinate y of greater than or equal to 0.020 and less than 0.060.
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