Acer :: 5630 Lcd

problem i have with my lcd screen.P01-10-09_14.18.jpg

As you can see the screen is completely white, its hard to tell by the picture but the edges off the screen are fading to black and there is lots of little lines running horizontally as well.

Now when i plug an external screen the picture comes up on the external and the computer works fine, just seems that the laptop screen is playing up for some reason.

Also when i turn the laptop off for an hour or so the screen suddenly comes back to life, sometimes for days and sometime for only a couple of hours.