Replacw laptop screen with casing? Samsung Ativ Book Pro 9

My laptop screen cracked, and the only part I can find is the entire screen instead of just the glass. I have a Samsung ativ book pro 9, how do I remove the old screen with casing from the hinges, and how do I proceed to installing the new screen? Would this be easier than changing the glass alone? That's another option, but I don't have a heat gun. Might as well change the entire thing than disassemble both screens imo, but I'm open to any advice I can get.