You're goin to need to replace the display. Your LCD is broken
You can find parts on the net, I suggest getting one, probably a little more expensive, that has the mid frame
http://www.googleadservices.com/pagead/aclk?sa=L&ai=DChcSEwi9__7_9L_RAhVUtcAKHZySBegYABAM&ohost=www.google.com&cid=CAESIeD2dXDo9AfgJ4XJ2Y8NyIAE6vEXv2F2ojK6ci7vXrkJTA&sig=AOD64_0A8kfGXI7Sdh0grt44Ozf0HOzHrg&ctype=5&q=&ved=0ahUKEwjlhvb_9L_RAhWMx4MKHZXZDj0Qwg8IHg&adurl=
Here's a video of how to replace it
https://m.youtube.com/watch?v=hPFBA24dR1w