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Writing device for color electronic paper

  • US 7,292,231 B2
  • Filed: 02/20/2004
  • Issued: 11/06/2007
  • Est. Priority Date: 02/21/2003
  • Status: Active Grant
First Claim
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1. A writing device for performing writing with respect to color electronic paper which includes a microcapsule layer having microcapsules, whose colors change depending upon a direction of an electric field, the microcapsule layer including a plurality of types of microcapsules which are formed so as to be capable of displaying one color among a plurality of predetermined colors, respectively, the writing device for color electronic paper comprising:

  • a color arrangement detector which detects an arrangement of the plurality of types of microcapsules in the microcapsule layer; and

    an electric field controller which controls the electric field formation for each of the microcapsules on the basis of a result of the color arrangement detection by the color arrangement detector.

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