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Electro-optic displays, and methods for driving same

  • US 6,950,220 B2
  • Filed: 03/18/2003
  • Issued: 09/27/2005
  • Est. Priority Date: 03/18/2002
  • Status: Expired due to Term
First Claim
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1. An electrochromic display comprising an electrochromically-active layer comprising a nano-porous-nano-crystalline film comprising a semiconducting metal oxide having an electroactive compound which is either a p-type or n-type redox promoter or p-type or n-type redox chromophore adsorbed thereon or otherwise attached thereto, the display having a solid charge transport layer disposed adjacent said film and in charge transport relationship therewith, the electrochromic display having a plurality of pixels and the charge transport layer being interrupted between adjacent pixels.

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