My Ipod's screen is white!!

Well, this is just frustating for me. It happend one afternoon that I was leaving my house and then my Ipod touch fell and it hit the floor really badly. Fortunately it didnt crack, but when I hit the home button to check it, the screen was completely white! I freaked out, but when I checked the music, it was working, I could enter my ipod with the password, I could even enter the games I had. The only problem is that the screen is WHITE. I really dont know what to do, so if anyone knows how to fix this PLEASE dont think twice of telling me!!