Glenns right. Dont let water condense on any cold electronics. I blew a fuse in my video cam a couple of years ago when I brought it from the cold and turned it on. A good trick is to put your camera in a large baggie and seal it while you are outside. Then bring it in and wait till it warms up before you open it. You can also put the camera in an inside pocket to warm it as well.
Laptops screens can freeze, but I’ve never heard of it. Most people don’t use them outdoors like a camera.
My lcd screens on my still and video cameras all work fine in freezing weather. The buttons tend not to work when they get really cold and the batteries go dead almost right away. Bring extra batteries and keep them in an inside pocket.