If my truck gets pulled for repairs and I wind up in a spare with an LCD monitor, I either have to unplug it once it gets dark or else tape a piece of thick paper over the entire screen because it is so damn bright even on the lowest setting that it ruins my night vision and becomes a safety hazard. And on the ones I have used, once it gets dark the picture quality is so distorted and poor that it would be useless even if I didnt unplug it or cover it up. The 12 yr old CRT monitor in my car has a much clearer picture than any LCD I have ever seen and at night I can dim it down so low that the screen is black until I shift into reverse and the backup lights come on.