The glass layer of a LCD in often unprotected. A knock, or pressure on the screen breaks the glass.
Before you bring it to the repair shop, check all the other functions of the camera by using the AV-cables.
If there are other issues with the camera, it might be an uneconomical repair as these screen replacements can be very expensive.

Camcorder repair - LCD screen

Broken Side Screen

Side Screen without cover

LCD Panel

LCD Panel