Welcome to the forum.
Screen saver or LCD time out is what the menu are most often called, and most often there is a OFF setting beside the 1-2-3-5 minutes that seem to be the popular LCD time out options.
I also think there are some cameras that do not have the OFF setting, and it is also advised against doing for a few reasons.
1: with the LCD screen on all the time the camera get hotter, and hotter "burning" most often mean shorter lifetime
2: some states / countries it is actually illegal to have a live screen going, even if it is just depicting the road in front of you or behind you.