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Electrowetting displays

  • US 8,319,759 B2
  • Filed: 08/31/2008
  • Issued: 11/27/2012
  • Est. Priority Date: 10/08/2003
  • Status: Active Grant
First Claim
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1. A display comprising:

  • a substrate having at least first and second portions having first and second optical characteristics differing from one another;

    a first fluid, the first fluid absorbing at least one wavelength of light, being colored by at least one of pigment particles, nanoparticles and quantum dots, and having a third optical characteristic differing from at least one of the first and second optical characteristics;

    a light-transmissive second fluid immiscible with the first fluid; and

    a first electrode adjacent the first portion of the substrate and a second electrode adjacent the second portion of the substrate,such that by controlling the potentials applied to the first and second electrodes, the first fluid can be made to assume a first position, wherein the first fluid substantially covers the second portion of the substrate, leaving the first portion uncovered, and a second position, wherein the first fluid substantially covers the first portion of the substrate, leaving the second portion uncovered.

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