Electrophoretic media and processes for the production thereof

Details Electrophoretic media and processes for the production thereof Electrophoretic media and processes for the production thereof

2008-05-20

2008-05-20

Ben, Loha (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C345S055000, C345S107000, C204S600000, C204S601000, C204S606000, C430S032000

Reexamination Certificate

active

07375875

ABSTRACT:
A first electrophoretic medium comprises an electrically charged particle suspended in a suspending fluid, the particle having a polymeric shell having repeating units derived from at least one monomer the homopolymer of which is incompatible with the suspending fluid. A second, similar electrophoretic medium comprises a suspending fluid, and first and second types of electrically charged particle suspended in the suspending fluid, the two types of particle having differing optical characteristics but both having polymeric shells. The polymeric shells are arranged such that homoaggregation of the two types of particles is thermodynamically favored over heteroaggregation.

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