Between each transparent pixel electrode driven by TFT as a drive device and a common electrode, a polymer layer located in contact with the transparent pixel electrode and electrically active to change in color by electrochemical oxidization or reduction and a polymeric solid electrolytic layer located...http://www.google.es/patents/US7312914?utm_source=gb-gplus-sharePatente US7312914 - Electrochromic display device and electrodeposition-type display device
Electrochromic display device and electrodeposition-type display device
