Electrochromic device

G - Physics – 02 – F

Patent

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345/55

G02F 1/00 (2006.01) G02F 1/15 (2006.01)

Patent

CA 1054700

ABSTRACT OF THE DISCLOSURE An electrochromic display device of the type which changes colour on application of an electric potential is provided. The device is in the form of a cell and comprises a first electrode, a metal-sensitive compound in contact with the first electrode and also in contact with a solid fast ion conductor as electrolyte. The fast ion conductor itself is in contact with an electrode capable of providing ions the same as the fast ions of the conductor. The metal sensitive compound is preferably an oxide of a transition metal capable of dis- solving metal atoms and change colour in so doing.

243389

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