Kindle Fire – Repairing Screen

This Kindle Fire had a broken USB port (common defect). Replaced that by soldering in a new one, but now seems to have a weird screen issue, where the screen seems to have split in two, one side whitish and the other greenish. Everything else seems to work fine.
Here’s a pic of the screen:
https://www.dropbox.com/s/xh3kran0hx421xu/KindleFire_Screen.jpg