Computers with screens that do not emit light?

Hi r/tech,

Is anyone aware of a computer with a screen that does not emit light, instead requiring light to be shined on it? I'm thinking in the vain of some kindles. I would appreciate this feature as 1) I am aware of some research suggesting that the light emitted from computer screens is harmful to sleep patterns and 2) I would like to be able to work on a computer outside in the light rather than to be sucked into dark areas to do computer work, and 3) I'm irrationally creeped out by the glow of computer screen.

This seems like it could/should be a somewhat obvious innovation but I haven't been able to find anything like this on the web. Any insights on how to find anything like this / why this would be more difficult than I imagine to design?

Thanks!

Submitted June 07, 2017 at 03:47AM by elansleazebaggano http://ift.tt/2ryrHFk via TikTokTikk