A negative charge pushes the black chips up, rendering words and images.’Į Ink has been refining the total mix the ingredients, the electronics, and the mechanics of that process. A positive charge on the bottom electrode pushes the white chips to the surface, making the screen white.
Above this layer is a transparent electrode at the base is another electrode. The white chips can be positively charged, the black chips negatively charged. It all sounds so simple, ‘The basic technology uses a layer of microcapsules filled with flecks of sub micrometer black and white pigment chips in a clear liquid. This could offer a significant boost to the current one dimensional pretenders.
However E-paper pioneer EInk -the company whose technology underpins them and others is now prototyping electronic ink that is bright enough to support filters for vivid colour displays, and that have a fast-enough refresh rate to render video. The current e-readers such as Sony and the Kindle are not unlike the initial print on demand services - only available in black.
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