Patent ID: 6560004
Filing Date: 2003-05-06
Classification: C09K,G02F

Abstract:
An electrochromic device, comprising:a first substantially transparent substrate having an electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; and an electrochromic medium contained within a chamber positioned between the first and second substrates which comprises two or more electroactive compounds, at least one of the electroactive compounds being a coupled electrochromic compound comprising a first anodic monomeric electrochromic compound coupled by a bridge comprising a covalent bond or an intervening hydrocarbon structure optionally containing one or more heteroatoms, to a second anodic monomeric electrochromic compound, and optionally additional monomeric electrochromic compounds such that electronic communication is exhibited between the anodic monomeric compounds.