An electric type paper display having memory properties, rapid response times and multi-optical optical property display with an image of high quality is made. Each display element is wholly in contact with liquid in a cavity and the surface of each display element has a portion with a most positive...http://www.google.com.au/patents/US5894367?utm_source=gb-gplus-sharePatent US5894367 - Twisting cylinder display using multiple chromatic values
