Electrophoretic displays, display fluids for use therein, and methods of displaying images
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United States of America Patent
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Feb 25, 2003
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app pub date -
Jan 16, 2002
filing date -
Jan 16, 2002
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Abstract
An electrophoretic display liquid composition for use in an electrophoretic display device that has a multiplicity of individual reservoirs, each containing the display liquid of at least two sets of particles dispersed in a transparent liquid system, the at least two sets of particles exhibiting different, contrasting color and different charging properties from each other, and at least one of the sets of particles containing flow aid particles as additives upon an external surface of the particles. Preferred flow aid additives include silica and titania particles.
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