This invention relates to a process for the manufacture of a multi-color
electrophoretic display involving adding colorant solutions or
dispersions of different colors and charged pigment particles in separate
steps. The process comprises a first step of pattern-wise filling
colorant solutions or dispersions into microcups in predetermined areas,
followed by a step of pattern-wise or non-pattern-wise adding an
electrophoretic fluid comprising charged pigment particles dispersed in a
dielectric solvent or solvent mixture into the microcups which are
pre-filled with the colorants.