My screen looks smashed when I turn on my camera.

https://preview.ibb.co/dHTUad/20180513_1...

When I turn my camera a third of the screen is black. It has lines running through them. The screen looks like it has a crack in it but when I turn it off it hasn't got one. It's a second hand camera I have. But everything was fine on the 8th. It's now the 11th. I do have a habit of dropping things and I do remember it falling off my bed recently. Obviously it must have been from that. But I would like suggestions on how much it would cost in £ to get fixed.