You may be able to fix it yourself if you can find a replacement screen. I usually search ebay for a broken camera with other problems that I can cannibalize. Here's some examples on LCD replacement. Don't recommend that you try this yourself, unless you have at least some experience with electronics. http://camerarepair.blogspot.com/2007/11/fixing-or-replacing-broken-lcd-screen.html
Otherwise, the cost of professional repair may be close to or beyond the value of the camera. A better option is to sell the camera on ebay for other repair hobbyists to attempt replacing the screen for themselves. You actually may get a good price for the camera IF it's still capable of taking pictures.