US Patent 7781783 White light LED device
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Patent abstract
Light-emitting diode (LED) devices which can produce a uniform white light with a broad emission spectrum and a high color rendering index (CRI) are provided. For example, the emission spectrum of LED devices as described herein may provide more red light and yield a higher CRI light when compared to conventional white LEDs. For some embodiments, the various lights emitted from different layers of the LED device may mix at a light-scattering encapsulation layer and become a uniform white light.
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Patent Inventor Names
Jui-Kang Yen0
Yung-Wei Chen0
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US Patent 07781783 White light LED device US Patent 7781783 White light LED device
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Patent Number
077817830
Patent Number
77817830
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Official Website
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Patent Jurisdiction
Patent Number
077817830
Date of Patent
August 24, 2010
0Patent Application Number
120255840
Date Filed
February 4, 2008
0Official Website
Patent Primary Examiner
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US Patent 07781783 White light LED device
Infobox
Is a
Patent jurisdiction
Patent number
07781783
Date of patent
August 24, 2010
Patent application number
12025584
Date Filed
February 4, 2008
Patent primary examiner
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