E-Ink Case Turns the Back of Your Phone Into a Second Screen

Story at Wired.com

The e-ink screen that popSLATE uses is the next generation of screens that are at the core of e-readers like Amazon’s Kindle or the Kobo. Like all e-ink screens, it only consumes power when the display is changed. This allows for an always-on ambient visual interface.

What can you do with a second screen on the back of your phone? A lot, it turns out.

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