Electrochromic device
First Claim
1. Electrochromic device comprising a pair of glass or plastic plates or plastic films of which at least one plate or film, preferably both plates or films, are provided an in each case one side with an electrically conductive coating, of which at least one plate or film and its conductive coating are transparent, of which the other may be mirrored, and of which in the case of at least one of the two plates or films the electrically conductive layer can be divided into separate, individually contacted area segments, where the plates or films are joined together via a sealing ring on the sides of their conductive coating, and the volume formed by the two plates or films and the sealing ring is filled with an electrochromic medium which comprises at least one reducible electrochromic substance OX2 and at feast one oxidizable electrochromic substance RED1, characterized in that one OX2 corresponds to one of the formula
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Accused Products
Abstract
An electrochromic device comprising a pair of glass, plastic plates or plastic films At least one plate or film, is provided with an electrically conductive coating. At least one plate or film and its conductive coating are transparent and the other may be mirrored. The plates or films are joined together and form a volume filled with an electrochromic medium which comprises at least one reducible electrochromic substance OX2 and at least one oxidizable electrochromic substance RED1. The OX2 corresponds to the formula
in which R201 and R202, each are alkyl, cycloalkyl, alkenyl, aralkyl, aryl, −[C(PQ)]− or a bivalent bridge B, Z201 is a bivalent radical of the formulae CR210R211, O, C═O or o-phenylene, R210 and R211, each are hydrogen, methyl or ethyl, or CR210R211 is C3- to C7-cycloalkane-1,1-diyl. The rings C, D, E and F, each may be substituted by up to 4 alkyl and/or alkoxy radicals, or respectively, may be linked via a —(CH2)4— or —CH═CH—CH═CH— bridge. P and Q, each are —CN or —COO-alkyl. X— is an anion.
21 Citations
6 Claims
- 1. Electrochromic device comprising a pair of glass or plastic plates or plastic films of which at least one plate or film, preferably both plates or films, are provided an in each case one side with an electrically conductive coating, of which at least one plate or film and its conductive coating are transparent, of which the other may be mirrored, and of which in the case of at least one of the two plates or films the electrically conductive layer can be divided into separate, individually contacted area segments, where the plates or films are joined together via a sealing ring on the sides of their conductive coating, and the volume formed by the two plates or films and the sealing ring is filled with an electrochromic medium which comprises at least one reducible electrochromic substance OX2 and at feast one oxidizable electrochromic substance RED1, characterized in that one OX2 corresponds to one of the formula
Specification