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Reflective display device using photonic crystals

  • US 7,145,614 B2
  • Filed: 04/15/2003
  • Issued: 12/05/2006
  • Est. Priority Date: 04/30/2002
  • Status: Expired due to Term
First Claim
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1. A reflective display device using photonic crystals, comprising:

  • a plurality of reflective color filters, each reflective color filter reflects a predetermined wavelength range of an incident visible light, each of the plurality of reflective color filters including three-dimensional photonic crystals of inverse opal structure having colloids of varying sizes; and

    a plurality of optical switches disposed adjacent to and facing a corresponding one of the plurality of reflective color filters, each of the plurality of optical switches extracts a predetermined color by adjusting an intensity or on/off-frequency of light reflected from the corresponding one of the plurality of reflective color filters.

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