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Is that an actual LCD matrix display? One would think that a small-form-factor e-paper display (the format that's sometimes used for shelf labels and the like) could replace monochrome LCD pretty much everywhere these days.


Two things:

The latency of e-paper doesn't provide a great typing experience.

"These days" isn't really applicable - the Alphasmart devices haven't been made since 2013.


I always get this terminology confused. My Pebble 2 supposedly has an “e-paper” display, but based on looks I’m pretty sure it’s the same type of screen as what’s in my graphing calculator and my AlphaSmart Dana, although the latter two definitely have less contrast than the Pebble, I assume because they’re older and/or of lower quality.


The pebble 2 is e-paper. The underlying tech is quite different from lcd.


Are you sure? I know Pebble always referred to it as "e-paper", but I recall seeing a lot of people say it's actually a type of LCD screen.

From a quick Google: https://hackaday.com/2014/02/16/fixing-the-unfixable-pebble-...

> The actual screen used in the Pebble is a Sharp Memory LCD.

It's definitely not e-ink btw, which I know is indeed different. It doesn't look anything like e-ink.


My apologies - I stand corrected. I was pretty certain they actually used e-ink, but it is low power LCD.




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