Materials for use in electrophoretic displays
AssigneeE Ink Corporation
InventorsBin Wu, Charles Howie Honeyman, Stephen P. Dudek, Anthony Zalesky, Richard J. Paolini, Jr., Craig A. Herb, George G. Harris
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Abstract
An electrophoretic medium comprises an electrophoretic layer, a layer of lamination adhesive and a polymeric layer disposed between the electrophoretic layer and the lamination adhesive layer, the polymeric layer being impermeable to the fluid. A second form of electrophoretic medium has a layer of a complex of an alkali metal and a polymer in contact with the electrophoretic layer. A third form of electrophoretic medium comprises a plurality of discrete droplets of internal phase in a binder, and further comprises a salt.
Claims14
A polymer-dispersed electrophoretic medium comprising a plurality of discrete droplets of an internal phase in a binder, the internal phase comprising a plurality of particles disposed in a fluid, the particles being capable of moving through the fluid upon application of an electric field to the medium, the binder comprising a poly(vinyl alcohol), polyvinylpyrrolidone, gelatin, and a salt.
Dependencies are inferred from the claim text.