Quote Originally Posted by chicago
i've found places online that say the display freezes and may damage pixels.
I don't know about damage, but extreme cold will slow down an LCD display.
When the temperature gets down below freezing overnight, in the mornign my car's LCD display on the trip computer takes a few seconds to change the image.

From my experience as the car warms up the display update speeds up, until as I feel warm the display is working normally.

I think that what ought to be liquid crystal is getting to be sludge
As the viscosity increases with lowered temperature, the electric field across the LCD pixels isn't strong enough to flip the orientation of the molecules quickly.

I don't know at what point a LCD will cease to function altogether, or if it will permanently fail or will resume functioning if it is allowed to warm up naturally.