Almost impossible to damage the LCD screen as it is slightly flexible.
I agree with others, simply replace the "Touch Screen" glass.
Peel back the tape around the edges to expose the adhesive that holds it in place.
Use either a piece of nylon fishing line to cut the foam or a SHORT blade.
It's pretty easy to remove it, once it's out you should find a perfectly good LCD display under it.
To install is simple, new screen will come with 8 adhesive foam pieces.I suggest you use them.
Some will use double sided rubber tape, I have found this causes calibration problems.
Once in place,TEST IT. It works....use the same type of tape to seal it all back up....