[lukifer]

I'm always surprised that e-ink readers have such good readability at low resolutions. I think an accidental by-product of how they work is a little "fuzziness" when translating from digital data to analog atoms, so the text looks more like organic newspaper ink than a pixellated screen.

Anyway, most e-readers are in the ballpark of 800x600; and I expect if the concept got traction, there's no reason it couldn't be scaled up to 8.5" x 11" at equivalent pixel densities (at the cost of hovering your phone for a few seconds longer or whatever).

[yencabulator]

> Anyway, most e-readers are in the ballpark of 800x600

A Kindle Paperwhite is 1072x1448, 300 PPI, 16 levels of grayscale.

I personally couldn't tolerate reading on a kindle until they reached 212 PPI. 800x600 may be acceptable for a simple sign, but it's not gonna wow anyone.