[ngcc_hk]

Wonder as only 16 level of grey. If that enough?

[dmitrygr]

with just greys (no color) and dithering, 16 greys is plenty

[throwanem]

As long as you have a good overall dynamic range. Granted I've only seen the same photos everyone else has, and not the panel in person, but if the photos are to be believed these panels have a better black than any I've seen before.