Yep, I’ve been dreaming about this for years.. for me the critical component of it is no power cable.. just some (C?) batteries in the frame, and then it updates via infrared across the hall like grocery store eink price tags do. Bonus points if it’s color eink. Somebody please?
I read a thing on HN the other day that was about being able to change an eink display off of wireless power (not sure if it was "ambient" energy like wifi signals or a directed thing like Qi); it's slow but apparently possible to incrementally change an e-ink screen like that. Could work with solar panels, and I'm sure that could be integrated into the screen.
