Hi eturgeon
If it's the LED lighting that causes you trouble have you tried a transflective display instead?
Still LED, but no back light, so daylight readable etc.
If you know anyone with a Garmin hiking sat nav (etrex 20/30 are the current ones) they have been using a transflective display and a front light for years, so if you get to a camping hiking shop and have a play with one you can see the screen in action without forking over cash
http://en.wikipedia.org/wiki/Transfl...rystal_display
Few monitor makers from a quick google
http://www.lg.com/uk/outdoor-display
http://www.kyocera-display.com/products/outdoor.asp
http://www.flatvision.co.uk/transfle...ight-readable/
http://www.aispro.com/products/indus...adable-monitor
Mike