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Another point on reflective screens:
Thus far, all the primary reflective display contenders, excepting Mirasol, offer much higher contrast in monochrome than in color, due to the reflectance loss in adding color filters. Perhaps within a few generations, EPDs will approach paper quality in monochrome, but will still lag a bit behind in color. Since EPDs are still quite slow and not extremely efficient in switching, the dominance of EPD likely means a continued low-end device market in the form of dedicated readers, at least until a competing technology gets its foot in the door. So far, we haven't seen that happen in the consumer market, as the primary competitors to E-Ink are either producing EPDs as well, or they are simply rounding up investors and showing demos.
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