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MomBoard: E-ink display for a parent with amnesia

(jan.miksovsky.com)
2093 points pabs3 | 3 comments | 14 Nov 24 12:20 UTC | HN request time: 0s | source
1. Miraste ◴[14 Nov 24 15:59 UTC] No.42137503[source]▶
"I was concerned about the possibility of e-ink burn-in"

Happily, e-ink displays don't suffer from burn-in.

replies(1): >>42137906 #
2. devsda ◴[14 Nov 24 16:35 UTC] No.42137906[source]▶
Had the same thought but then I remembered coming across this.

Can't say if it is due to burn-in but some manufacturers do recommend refreshing the display image periodically like every 24 hours [1].

See precautions #4

https://www.waveshare.com/wiki/4.2inch_e-Paper_Module_(B)_Ma...

replies(1): >>42138694 #
3. Miraste ◴[14 Nov 24 17:33 UTC] No.42138694[source]▶
Interesting. Waveshare makes this recommendation across their product line, and from what I can glean from google, their displays really do develop permanent artifacts if they're not refreshed. I've never seen another epaper company say this, and anecdotally I've seen ereaders that held the same image for months or years work perfectly fine, even with no power for refreshes. I don't know why there would be a difference.