The performance of electro-wetting displays can be improved by: (a) providing a concealment member (112) which conceals the moving fluid (108) when that fluid (108) is confined to a small area; (b) using the moving fluid to cover one or more sections of a filter or reflector having differently-colored...http://www.google.se/patents/US7420549?utm_source=gb-gplus-sharePatent US7420549 - Electro-wetting displays
