Patent ID: 7184199
Filing Date: 2007-02-27
Classification: B01J,G02F,Y10S

Abstract:
1. An apparatus for forming or erasing an image on the rewritable medium for visual display comprising an electrophoretic coating on a substrate, wherein the electrophoretic coating comprises microcapsules comprising charged particles of one or more colors suspended in a phase change material that has a melting temperature in the range of between about 30° C. and about 200° C., wherein particles of at least one color have a positive or a negative charge, and a polymer matrix, wherein the microcapsules are distributed in the polymer matrix comprising: a) a heating element; b) at least one electrode; c) a means for positioning the heating element to heat a section of the electrophoretic coating; and d) a means for positioning the at least one electrode above the surface of the section of the electrophoretic coating.