Electrophoretic display particles and a process for their preparation
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United States of America Patent
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Jan 2, 1990
Grant Date -
N/A
app pub date -
Mar 21, 1986
filing date -
Mar 21, 1986
priority date (Note) -
Expired
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Abstract
A process for producing particles for use in electrophoretic displays, wherein a heavy, solid pigment preferred for its high contrast or refractive index properties is coated with a polymer starting material. The process significantly reduces the specific density of the resultant particle, and creates particles with smooth polymer surfaces that can be chosen for stability in a given electrophoretic carrier fluid, and possess acceptable electrophoretic characteristics.
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