Electrophoretic ink(E ink) possesses the merits of flexibility, bistability, extremely low power dissipation, high contrast and reflectivity, near-lambertian viewing characteristic, which result in an ink on paper appearance. This paper introduces the display mechanism of E ink. Preparation methods and recent development of microcap-sule are reviewed. Finally, the applications of E ink are also briefly proposed.

The electronic ink microcapsules containing TiO_2 coated with PMMA particles homodispersed in TCE(tetrachloroethylene) were prepared by the complex coacervation,which shell is gelatin-gum acacia and surfactant is Span 80,and studied influence of the SDS on preparation of microcapsule.Electronic ink display prototype was prepared by coating electrophoretic ink microcapsules on ITO substrate.