It's a "memory LCD", which has very low no power drain when idle, but has an LCD's refresh speed (i.e., fast enough to display video).
You can also get some decently-documented eInk boards from Waveshare in 1" to 13" sizes, though the costs are definitely too high for anything but one-off Maker projects:
https://www.adafruit.com/product/4694
It's a "memory LCD", which has very low no power drain when idle, but has an LCD's refresh speed (i.e., fast enough to display video).
You can also get some decently-documented eInk boards from Waveshare in 1" to 13" sizes, though the costs are definitely too high for anything but one-off Maker projects:
https://www.waveshare.com/product/displays/e-paper.htm
You may also find the PaperTTY project interesting for your TUI:
https://github.com/joukos/PaperTTY