Doing it at a reasonable current draw is the hard part.
Most of these 1000 nit plus screens draw around an amp at full brightness.

Yeah, but if you can afford the Craggy or the ClearNav you can also
afford to buy the LiFePO4 batteries to double your amp hours for the
same weight as your lead bricks, not to mention adding 5-20W (or more)
of on-board solar to boot...

-Paul