Single and double sided electrochromic displays

Details Single and double sided electrochromic displays Single and double sided electrochromic displays

1997-06-10

1999-03-02

Epps, Georgia

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359265, 359266, 359268, 359269, 359271, G02F 117, G09F 900

Patent

active

058778888

ABSTRACT:
An electrochromic display device and method are disclosed. The device comprises an ionically isolative layer containing an electrochromic material in contact with an electrolyte layer and a working electrode. The working electrode is positioned on a first side of a substrate, while a counter electrode is positioned on an opposite side of the substrate. The counter electrode is electrically coupled to the electrolyte layer on the substrate first side through one or more openings extending through the substrate. In another embodiment, ionically isolative and electrolyte layers are also provided in contact with the counter electrode on the backside of the substrate to create a double sided display. The method comprises reversible electrochromic effects of the electrochromic materials contained in either the ionically isolative layers or the electrolyte layers.

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