SINGLE AND DOUBLE SIDED ELECTROCHROMIC DISPLAYS

摘要

An electrochromic display device and method are disclosed. The device comprises an ionically isolative layer containing an electrochromic material (36) in contact with an electrolyte layer (38) and a working electrode (34). The working electrode is positioned on a first side of a substrate (32), while a counter electrode (42) 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 (40) 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.