Game Boy contrast problem

Unfortunately I only own one game boy so I have nothing to compare it too but from what I've seen in videos and pictures the screen on my game boy looks quite a bit more dim (the contrast looks much lighter) then what I've seen even with four fresh batteries... Is this a common issue/ is there an easy fix for it?? I can adjust the contrast to make it darker but on standard contrast i.e. Right in the middle it's almost too dim to see