Electrophoretic caps prepared from encapsulated electrophoretic particles
AssigneeXerox Corporation
InventorsNaveen Chopra, Georgeta Masson, Peter Odell, Peter Kazmaier, Man-Chung Tam
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Abstract
Articles and methods for making capsules that include a cap of electrophoretic material suspended in a dielectric fluid are disclosed. The cap of electrophoretic material and dielectric fluid are encapsulated in a shell that forms the capsule. The cap may be moved to a viewable portion of an inner surface of the capsule shell, the cap proximate to the inner surface, when an electric field from of a pair of separated electrodes translates the cap of electrophoretic material in the capsule.
Claims20
An article comprising:
- a cap of electrophoretic material suspended in a dielectric fluid;
- wherein the cap of electrophoretic material and dielectric fluid are encapsulated in a shell, the comprising a plurality of fused or combined electrophoretic particles;
- wherein a portion of cap of electrophoretic material is proximate to a viewable portion of an inner surface of the shell when the potential of an electrode near the shell attracts the cap of electrophoretic material to the viewable portion of an inner surface of the shell.
A method of treating capsules that include visible electrophoretic particles in a dielectric fluid comprising:
- combining visible electrophoretic particles in dielectric fluid within a capsule to form a cap that covers a portion of an inner surface of the capsule.
An article comprising:
- an electrophoretic display having two opposed conductive plates separated from each other by an insulator to form a fluidly sealed cavity between the plates;
- wherein each plate has one or more addressable electrodes;
- wherein at least one of the plates and the one or more electrodes are transparent;
- wherein the sealed cavity includes one or more capsules between the plates;
- and
- wherein each capsule includes a cap of a visible electrophoretic material suspended in a dielectric fluid of the capsule, each cap comprising a plurality of fused or combined electrophoretic particles.
Dependencies are inferred from the claim text.