For data transfer to the display pixels, almost definitely every display uses some sort of multiplexing, but most display boards include a driver chip that does the multiplexing for you. There are a couple of persistent display techs (only send data when you want to change what is displayed) like e-ink, but there’s also a LCD version that I think Sharp just released, that doesn’t have e ink’s slow update rate or persistence tendencies. Both are much more expensive than your $free.99 display.

Very cool that you got it working! I also found a disposed vape and ripped out the charging board with a display like that to monitor/charge some spare 18650 batteries I harvested. I hate that the standard vape is now disposable, Lotta good stuff in there!

Tf are you talking about? <my area> towns are quaint af. You’re thinking of <area ive only driven through> towns.