POLYCHROME ELECTROPHORETIC INK, ASSOCIATED DISPLAY DEVICE AND MANUFACTURING PROCESS
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United States of America Patent
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Issued Date -
Mar 27, 2014
app pub date -
Oct 9, 2012
filing date -
Oct 10, 2011
priority date (Note) -
Abandoned
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Abstract
A polychrome electrophoretic ink including at least four types of particles dispersed in a nonpolar organic medium, each particle type containing a pigment of a color which is associated therewith, having a positive or negative electrostatic charge, characterized in that at least one of the abovementioned particle types has a magnetic property (magnetic core) such that each particle type can migrate in a predetermined manner under the combined action of an electrostatic force and of a magnetic return force.
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