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COLOR-CHANGE MATERIAL LAYER

  • US 20080042552A1
  • Filed: 08/18/2006
  • Published: 02/21/2008
  • Est. Priority Date: 08/18/2006
  • Status: Active Grant
First Claim
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1. A color-change material layer comprising:

  • a color-change material that converts light of a second frequency range higher than a first frequency range to light of the first frequency range; and

    a transparent material having a refractive index of at least 1.6 intermixed with the color-change material, wherein the layer is substantially non-scattering to light of the first frequency range.

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