Hacker News new | ask | show | jobs
by will0 1498 days ago
I have a Onyx Boox Note Air, and it's amazing for reading / writing. I have an SSH app on it (it's Android) and the experience starts to fall apart there. I can type significantly faster than it can refresh and render the characters.

That being said I'm sure there's some magic you could do to reduce latency here if you tried. I know it does some magic behind the scenes with the drawing to improve responsiveness.

1 comments

> I know it does some magic behind the scenes with the drawing to improve responsiveness.

The way I understand the technology : refresh time looks related to how many pixels you draw at once. When you write with a pen, very few pixels have to change state on a given unit of time (the pixels under the stylus) the "magic" behind fast writing on e-ink is to draw the pixels under the pen as fast as possible then if needed add details once the user stops writing.

The problem with your terminal is once you reach the bottom of the screen and you start scrolling : from now on, every new line will redraw the entire screen. Now you are exactly drawing as much pixels as any e-book which is … slow.

You would need a terminal without scrolling (or some mid-page scrolling). This could probably be done but you would probably have problems with a lot of cli programs.