dropped my iPad, now getting red screen

http://www.ifixit.com

Look at their teardown and see if you are up for repairing it yourself.

I had the same problem and I solved it. here is how:

http://www.miniipad.com/how-fix-ipad-iphone-red-screen-dropped

someone suggested that I hit the back of the ipad a couple of times and my screen went back to normal. Now it sounds crazy but it worked. Maybe something was loose.