A reflective memory display is disclosed which includes: a flexible polymeric substrate; a patterned first conductor disposed over the substrate; and a layer including a polymeric dispersed cholesteric liquid crystal material coated over the first patterned conductor. The memory display further includes...http://www.google.es/patents/US6710760?utm_source=gb-gplus-sharePatente US6710760 - Unipolar drive for cholesteric liquid crystal displays
Unipolar drive for cholesteric liquid crystal displays