Chosen Solution
Just moved the TV and I do remember ignorantly grabbing it in the car and pulling it with the top bezel ?. Is this possibly a light diffusing sheet that just needs to be readjusted? It looks like instead of rolling over the sides this top part of the TV is coming out flat against the TV as if it is getting pinched by something, I’m not sure. It’s only NOT visible straight on or in dark scenes. Otherwise when the whole screen is lit up and your watching from an angle that’s all your eyes are looking at.
This is from below and where I got the idea that it looks like the sheets are just out of place:
@honenator those look like pressure marks. Yes it is possible that this is on the diffuser sheets or that they have moved. Time to disassemble the display and check out the sheets. Make sure that you mark them and replace them exactly as they come out of your display. Same order same direction etc. It’s amazing how many people flip the polarizer sheet or change the order of the sheets which is a PITA to sort out.