Electronic ink is a proprietary material that is processed into a film for integration into electronic displays. The priciple components of electronic ink are millions of tiny microcapsules, about the dameter of a human hair. In one incarnation, each microcapsule contains positively charged white particles and negatively charged black particles suspended in a clear fluid. When a negative electric field is applied, the white particles move to the top of the microcapsule where they become visable to the user. Electronic ink can be applied to any material that is used for conventional printing.
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