Electrochromic media for producing a preselected color

  • US 6,141,137 A
  • Filed: 04/26/1999
  • Issued: 10/31/2000
  • Est. Priority Date: 08/26/1998
  • Status: Expired due to Term
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First Claim
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1. An electrochromic medium capable of producing a pre-selected color, comprising at least three electroactive compounds, two of which are of the same redox type and another which is of a complementary redox type, where one of said two electroactive compounds of the same redox type has a more easily accessible electrochemically activated redox state than the other by minimally 30 mV, and where two of the at least three electroactive compounds are electrochromic.

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