Electrochromic display device and method of making such a device

摘要

The invention concerns an electrochromic device comprising a supporting substrate (1) on which are disposed a counter electrode (3) and a working electrode (6) which is electrochromic per se and/or bears an electrochromic material on at least a portion of the external surface thereof; the electrodes being separated from each other by a layer of an electrically insulating material (4) and at least a portion of the electrochromic material of the working electrode being at the end of the device closest to the viewer. The new device allows deposition of electrochromic coatings on a variety of substrates which need not be transparent.