Bayer Aktiengesellschaft

Jochen Schaller

Horst Berneth

Uwe Claussen

Dietrich Haarer

J&uuml;rgen Simmerer

The novel electrochromic system comprises at least one reducible and at least one oxidizable substance OX,and RED,respectively, which are linked with one another via a bridge member, and is outstandingly suitable for use in an electrochromic device.

Electrochromic system

Electrochromic display devices, whose plates having conductive coatings are subdivided into segments which are electrically separated from one another, can be contacted individually and, between the plates, contain a solvent, specific electrochromic substances and optionally conductive salts, are distinguished by excellent edge definition and high contrast.

Electrochromic indicating device

The invention concerns an electrochrome system comprising a mixture of reducible and oxidizable substances RED,and OX,, at lest one RED,&prime;-OX,&prime; pair being covalently interlinked via a bridge and, for at least one RED,&Prime; or OX,&Prime; substance, the reciprocal conversion of the oxidized form and the reduced form being brought about by the fracture or formation of a &sgr;-bond. The electrochrome system is characterized by simplified electron transfer and reduced secondary reactions.

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Schwarzenbach, Germany

Jochen Schaller