Purple screen of death. Stop open/closing the lid so much.
Gently wiggle the lid back-and-forth a little (opened, in the axis like trying to rotate the screen so the backside is visible while normally holding, like these transformer laptops), and gently press on the frame, under the bottom left corner, while firmly holding the back of the lid. That should bring her back up. If not, the damage is permanent, and the cable needs to be replaced (rupture will eventually permanent lose contact. The plastic in the cable is still ok, but the copper? conductive material has a small rupture, enough to make the screen erratic, not enough to kill the screen altogether).
Also do not use in that state, it is bad for your eyes (can induce vomit and headache)