Display device based on layer break up or layer displacement having at least two different states, in which one of the fluids (5) e.g oil in a first state adjoins at least a first support plate (3) and in the second state the other fluid (6) at least partly adjoins the first support plate. In one embodiment...http://www.google.fr/patents/US7463398?utm_source=gb-gplus-shareBrevet US7463398 - Display device