Very likely as above,
But it may also be a bad connection.
you can often access the screen connector on the base side of it by popping off the panel above the keyboard, but all lappys are built different so you may not be able to!!
if it's the screen end of the lead then the screen assembly needs to be split, also not that hard.
If it is a simple case of a bad connection I would not expect a "decent" computer shop to charge much at all if your not comfortable doing it yourself.