Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 11, 2007
0Patent Application Number
115339850
Date Filed
September 21, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
In accordance with the invention, there are systems for electronic paper, apparatus for electrophoretic display, and methods of making an electrophoretic display. The system for electronic paper can comprise a light transmissive electret substrate comprising a gradient of charges and a plurality of capsules disposed in the light transmissive electret substrate, wherein each of the plurality of capsules can comprise a plurality of charged pigments with a polarity opposite to that of the charges in the light transmissive electret substrate.
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