If you pull the screen away from the chassis as much as is shown in this image, you WILL break either the LCD display cable or the digitizer cable. Be extremely careful when separating the display from the body as these cables are super brittle and thin.
DO NOT use picks or pry tools on the top of the screen to the left and right of the webcam and microphone area to separate the adhesive. This is where the antennas are, and sticking a pick in there WILL destroy them, and you will have to order a new part, $30 on ebay. The antennas are closely integrated into the factory adhesive and extremely easily damaged.