Hey mate...its FAR from being easy.
Firstly you need an inventor for powering the screen/backlight. This is something that will probably be built into the laptop's mobo, so you'd need to find out if there is a separate one that you can buy which will take a 12v in from your PC's PSU and change it to whatever power req's the screen has.
Then you'll be needing another board that can accept VGA input and convert it into a usable output for that screen. The screen you've got there is nothing more than a plate of pixels - It has no idea what DVI or VGA is.
The screen i used for my project was actually taken from a HTPC case. The screen had all of the above contained within a unit behind the screen. It wasn't cheap either - ~£300