|If you mean a CRT (cathode ray tube) type display then DON'T mess with it.|
A crt has lethal voltages and can still be when ac plug is out. It has lethal chemicals if broken. If you do break it, parts can fly out and hurt you even if you miss all the other stuff like glass flying.
(hahaa some idiot confused ac with air conditioning)
If you mean an LCD then you only bet would be to identify it by any markings and search the used computer parts stores online.
Playing to the angels
Les Paul (1915-2009)