Like it or not, it seems that companies are beginning to rethink the venerable keyboard, especially when it comes to mobile devices, both laptops and tablets alike. Microsoft started it with the Surface covers and then Apple jumped on board with the cloth-like Smart Keyboard. Things came to a head with the Lenovo Yoga Book’s “Halo Keyboard”. Now it seems that Microsoft might be on the verge of yet another invention, one that combines a few of those ideas together into one e-ink keyboard cover.
The patent, which was filed back in September last year, talks about a device that has an emissive screen, like a regular tablet, and an electronic paper, a.k.a. e-paper a.k.a. e-ink, display, which can also double as a cover for the emissive screen