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摘要

Want a new cellphone? Just press a button. What looks like painted artwork on the Hitachi W61H phone is actually a new E-Ink screen. Unlike LCDs that add bulk to a device, manufacturers can add these screens-just twice the thickness of a hair-as if they were stickers.rnE-Ink draws power only when changing its black-and-white images, so it can show a pattern without draining batteries. In the latest version, engineers shaved 40 percent off the screen's thickness by applying thinner layers of the coatings that protect it from moisture and ultraviolet light. They also stacked the layers in a different order to mesh them together tighter.