Why does my laptop screen stoppes displaying when I start charging it?

i had the same problem to a level, the problem (which mine was) is the connector from the screen to the motherboard maybe lose, the two options are, to open it up, and find the problem, or the hassle free way, squash the bottom part of the screen bezels along, until you start to see some flickering, and soon the image. my connectors on my model, was located a little to the left from the middle of the bottom of the screen where it says acer... hope i could help, and good luck repairing your laptop...