A remotely-alterable electronic-ink based display device employing an addressable display assembly including a layer of electronic ink including a bi-stable non-volatile imaging material. The device includes an integrated circuit layer having a storage element for storing instructions, programs and data,...http://www.google.com.hk/patents/US7762461?utm_source=gb-gplus-share專利 US7762461 - Remotely-alterable wireless electronic display device employing an electronic ink layer integrated within a stacked-layer architecture, including an activation grid matrix layer and transmitting and receiving antenna layers
