A pressure sensitive electrochromic device at least comprises a first substrate and a second substrate disposed opposite; a pressure sensitive layer disposed on the first substrate; an electrochromic layer disposed on the pressure sensitive layer; and a third conductive layer disposed between the electrochromic...http://www.google.co.uk/patents/US7158276?utm_source=gb-gplus-sharePatent US7158276 - Pressure sensitive electrochromic device and method of fabricating the same