I found pulling with two suckers started to bend the screen as the little clips holding the screen wouldn't release. So instead of risking damage I started to work my way around the edges of the screen by slowly pulling with the sucker and at same time using the trusty old a spudger tool (Spudger) to gently pry open.
Be care sliding out the ribbon cable connector that goes to the screen. Its also tricky to slide back in after so you might need to peel the ribbon from the back plate to give some more wiggle room. I did.