Gray lines through the middle of the iPad screen.

it sounds very much the the connector cable that sits between the LCD and the logic board is working its way loose, it has a metal band on it that is supposed to secure the connection, but impacts can dislodge the clip meaning that the connections can come loose. As seen on step 29 to 34 of this guide.

Giving it a single firm pat on the back worked for me. Thanks for this advice.

I usually give it a good throw against a wall. This always fixes the problem. If that doesn't work I'd just suggest head butting it until either it or you are fixed.

This sarken201@gmail.com. I have gray and white lines from one side to the on my iPad screen. Need it fixed

Stand on one side of a room and throw your iPad or tablet against the opposite wall . This works every time and I find it extremely effective. This technique was recommended to me and I was skeptical at first but it works like a charm!