Folding smartphones are slowly making their way into the mainstream. Could foldable e-readers be next? The E Ink Corporation, the company behind the digital paper tech found in the majority of e-readers, is trying to make it happen. The firm’s R&D lab has been developing foldable e-ink screens for a while, and its latest prototype clearly demonstrates the idea’s potential.

The video above comes from GoodEReader.com and shows a foldable e-reader prototype developed by E Ink. An earlier version came out in June, but the latest hardware adds a sturdier hinge, five dedicated buttons down the right hand side of the device, and two lightbars positioned at the top of the screen for illumination. There’s also integrated Wacom technology for…

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