Chosen Solution
After replace the screen on my IPhone with the replacement screen I got from I fix it and powering the phone back up. All I get is differ shades of blue lines run up the screen and a black dot in the top right corner with a few mult colour pixels just above Thank
Try another screen or your original screen to determine if your new one is defective.
It sounds like a defective screen, get them to send you a new one, and it should be ok! :)