Hi, Usually that problem is due to a bad connection of your iPad's LCD, what has to be done is: - turn off your iPad; - open your iPad (please watch the repair guide related to it); - carefully disconnect (on both ends) the flex cable shared by the LCD and the Logic Board; - carefully reconnect it, make sure it is well connected; - try turning on your iPad to check that it is working properly. If not than you should need a new LCD. Hope it helps :)