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Electrochromic display cell

  • US 4,253,742 A
  • Filed: 08/29/1979
  • Issued: 03/03/1981
  • Est. Priority Date: 09/25/1978
  • Status: Expired due to Term
First Claim
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1. In an electrochromic display cell comprisinga display electrode;

  • a counter electrode facing said display electrode;

    an electrochromic layer and an ion conductive solid electrolyte layer situated between said electrodes, the improvement comprising said ion conductive solid electrolyte layer being formed from materials selected from the group consisting of Li3 N, Li2+x C1-x Bx O3, Li4+x Si1-x Px O4 and Li5+x AG1-x Six O4 where 0<

    x<

    1, wherein the charge carrier through said electrolyte layer is lithium ion.

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