Tinted solution-phase electrochromic devices

  • US 5,278,693 A
  • Filed: 01/13/1992
  • Issued: 01/11/1994
  • Est. Priority Date: 01/13/1992
  • Status: Expired due to Fees
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First Claim
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1. In a solution-phase electrochromic device, wherein a solution, which is a medium of reversibly variable transmittance, comprises a solvent, an anodic electrochromic compound, and a cathodic electrochromic compound, the improvement which comprises having in said solution a tint-providing compound, which is selected from the group consisting of an azulene and quinoline yellow.

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