There are a few different ribbon cables that go between your main case and the display lid. Understanding the distortion is important before fixing the blame on the ribbon cables.
From what you are describing I’m more inclined to believe your display panel is damaged. Seeing the pictures is give us a better idea on what has happened.
@J Lukes - Well the issue is indeed the ribbon cables for the Vertical & Horizontal signals from the T-CON board.
Unlike most displays which has the T-CON within the display assembly its self. The T-CON board in your system is placed in the uppercase which exposes all of the lines through the hinge area. A good bang along the black plastic clutch cover can pass the hit to the cable as well as the board.
Sadly, the cables, T-CON board and the display its self are all one unit. You will need to replace the fully assembly to fix your issue.
Here’s the guide you’ll need to follow: MacBook Pro 13" Touch Bar Late 2016 Display Assembly Replacement
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Can you post a few pics so we can see what you are encountering Adding images to an existing question
Are you able to connect an external monitor into your system? If you can, does the external image stay normal when your internal messes up?
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