Sadly you’re not going to like my answer either ;-{ Your display assembly has failed, you need a new display.
OK I get it… What!! What could be going on to do this!! WHY, WHY!!!
OK, heres the dope!
Your display has a logic board on it which is called a T-CON it drives the LCD panel X & Y lines that energies the given pixels row by row, column by column! So when it messes up you get the fireworks you saw on in the video. Its also possible to damage it if you don’t use the proper tools taking the display off.
[image|1787129]
Review the iFixit teardown here [guide|30260] Jump down to Step 6 for more details