Yes, to an extent: I wouldn't ever use the dynamic picture settings, as they look horrible, and i wouldn't leave the screen on when not watching.
Most screens have anti-burn technology that works in the background, but the manuals should give you more info on that, and anyway newer screens are less prone to burn than older designs.
My elderly Fujitsu, for example, has a system that rotates the picture to an imperceptible degree every now and then, and then rotates it back again - only a matter of a pixel or so - and also has a white screen facility to reduce burn.
It's now at least four years old, did the rounds as a demo screen before I bought it and still has not a sniff of screen burn.