how do i fix my Droid Razr Xt912 the screen is purple and there is a big crack on it?

My Droid Razr xt912 screen wont work, i dropped it and the screen is purple and wont work. when i first dropped it, it was green and it was responding. but now it is purple and wont respond. there is a big crack across it. how do i fix it without having to get a new phone?? i don't want to have to get a new phone i like my phone.