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Dye-based filter

  • US 20040179283A1
  • Filed: 03/14/2003
  • Published: 09/16/2004
  • Est. Priority Date: 03/14/2003
  • Status: Active Grant
First Claim
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1. A display including a light source, the display comprising a dye-based filter material positioned to receive light from the light source, wherein the dye-based filter material absorbs light in the infrared range with respect to light in the visible range, the dye-based filter material having a sharp cutoff between 600 and 640 nm.

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