Electrophoretic display

Patent Granted An electrophoretic display forms images by rearranging charged pigment particles with an applied electric field. Macro photograph of Kindle 3 screen; microcapsules are evident at full size In the 1990s another type of electronic paper was invented by Joseph Jacobson, who later co-founded the E Ink Corporation, which formed a partnership with Philips Components two years later to develop and market the technology. In 2005, Philips sold the electronic paper business as well as its related patents to Prime View International. This used tiny microcapsules filled with electrically charged white particles suspended in a colored oil.