You can, but I personally wouldn't recommend it for two reasons.
1. You can take it apart only to find a jumble of wires, once you start unplugging you could forget and screw your entire laptop up, it's kinda risky.
2. Why would you go through that trouble when you can just get something like This
That right there is the most expensive webcam, and I'm almost positive it would come out cheaper then the screen you're buying.
Is there any reason you can't just get a standalone webcam?