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With eBooks becoming more and more popular these days, the technology of electronic ink is gradually improved too. The electronic ink shown here is made up of millions of tiny microcapsules, each of which contains positively charged white particles and negatively charged black particles suspended in a clear fluid. So when a positive or negative electric field is applied, these particles will then move to the top of microcapsules, displaying some words or graphs on the screen. This new technology has several notable features, e.g. it can be applied onto almost all kinds of surfaces, especially idea to large-screens; it’s durable, can last a long time; and it’s still visible to naked eyes even under the sunshine.

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