this post was submitted on 23 Aug 2023
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The only eink device I ever owned was a Pebble. It was pretty great in its time though.
The pebble was "e-paper" which was a marketing term for a transflective LCD. It was not e-ink.
E-ink is a proprietary display tech that uses actual magnetized "ink" suspended in "liquid" cells. By pushing and pulling dark/light ink particles with an array of tiny electromagnets, it physically "paints" an image onto the display surface. Even if you entirely cut power, the image remains indefinitely.
Transflective LCD, is an LCD, and while its an extremely small amount, it does still need power to stay on.
Weird, has nobody made a real e ink watch? That seems like it'd be a no brainer to make as watch displays go. Or is there some reason it wouldn't be good in a watch format?
https://www.crowdsupply.com/sqfmi/watchy#products