A thin low power, paper white, direct-view display includes an array of bistable micromirrors that are deflected between two stable states, a dark state in which the mirror covers a portion of the background and a white state in which the mirror uncovers the background. The drive electronics are similar...http://www.google.com.tw/patents/US6329967?utm_source=gb-gplus-share專利 US6329967 - Bistable paper white direct view display
