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WHITE LIGHT EMITTING DEVICE, AND DISPLAY APPARATUS AND ILLUMINATION APPARATUS USING THE SAME

  • US 20130020931A1
  • Filed: 07/18/2012
  • Published: 01/24/2013
  • Est. Priority Date: 07/18/2011
  • Status: Abandoned Application
First Claim
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1. A white light emitting device comprising:

  • a blue light emitting diode (LED) emitting blue light;

    at least one yellow phosphor excited by the blue light to emit yellow light, and selected from the group consisting of Y3Al5O12 and Lu3Al5O12; and

    a red phosphor excited by the blue light to emit red light,wherein white light obtained from a mixture of blue light and excited light corresponds to a region defined by coordinate points of (0.28, 0.28), (0.24 0.20), (0.26, 0.19), and (0.30, 0.27) in a CIE 1931 color coordinate system.

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