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LIGHT EMITTING DEVICE AND DISPLAY

  • US 20090316068A1
  • Filed: 08/27/2009
  • Published: 12/24/2009
  • Est. Priority Date: 07/29/1996
  • Status: Active Grant
First Claim
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1. A liquid crystal display comprising:

  • a back light having a light emitting diode;

    a liquid crystal injected between glass substrates; and

    a color filter,wherein said light emitting diode comprising;

    an LED chip,a transparent material covering said LED chip, anda phosphor contained in said transparent material and absorbing a part of light emitted by said LED chip and emitting light of wavelength different from that of the absorbed light,wherein said LED chip emits light having a spectrum with a peak in the range from 420 to 490 nm, said phosphor emits light having a spectrum with a peak in the range from 510 to 600 nm and a tail continuing beyond 700 nm, and said spectrum of the light emitted from said phosphor and said spectrum of the light emitted from said LED chip overlap with each other to make a continuous combined spectrum.

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