Methods for achieving improved color in microencapsulated electrophoretic devices
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United States of America Patent
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Feb 23, 2010
Grant Date -
Sep 30, 2004
app pub date -
Apr 2, 2004
filing date -
Jul 8, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A method for manufacturing a full color, reflective display includes the steps of depositing a first plurality of electrophoretic display elements in substantial registration with a first electrode and a second plurality of electrophoretic display elements in substantial registration with a second electrode. The electrophoretic display elements include a capsule containing a species of particles dispersed in a suspending fluid. The selective deposition of the display elements can be achieved by ink-jet printing methods, screen printing methods or other printing methods. In some embodiments the electrodes are printed onto the substrate before selective deposition of the display elements, while in other embodiments the substrate is provided having the electrodes already disposed on it. In still other embodiments, the sequence of printing of electrodes and electrophoretic display elements can be varied.
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