Electrochromatic system with third electrode

Details Electrochromatic system with third electrode Electrochromatic system with third electrode

1986-05-02

1988-08-09

Wan, Gene

G02F 101

Patent

active

047624019

ABSTRACT:
In an electrochromatic, transparent layer system comprising at least one electrochromatic layer (2), two electrodes (3, 5) separated by a hydrogen ion supplying layer which simultaneously is a hydrogen ion storing layer (4), there is located, seen in the direction of light incidence through the layer system, a further hydrogen ion conducting layer (6) (e.g. of SiO.sub.2) behind the electrode (5), behind which a further electrode (7) is arranged. The electrode (7) is capable of oxidizing hydrogen diffusing from within the system into hydrogen ions. For this purpose, a protective voltage is applied between electrode (5) and electrode (7) such that the third electrode (7) forms the positive pole.

REFERENCES:
patent: 4465339 (1984-08-01), Baucke et al.

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