Quote:
Originally Posted by ratinox
Maybe a digital picture frame or signboard.
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Black, 14 greys and whitish. Seems like a lot of bother and it will need power anyway.
Aldi & Lidl are using large eink signs as well as the eink price labels now. They seem quite low resolution, but do the job. Centra is just using the small eink price labels. I don't know how may greys they do, but they have also red.
Backup emergency ereader or Download for USB (though only gives mobi, not azw3).