Display not working after replacement

I have a 512gb iPhone 11 Pro and a few weeks ago the screen went out. The morning of the screen going out I had it plugged into my CarPlay and I got the device is overheating and will resume charging once it's temp lowers message and so I unplugged it.

I continued on my day and using the phone as normal and then later in the evening I was using my phone and multiple green lines appeared on the right side of the screen going from top to bottom followed by the screen flickering and going out.

The touch screen still worked as I was able to unlock the phone using muscle memory to connect to my laptop. between then and now I ordered 4 replacement OLED screens and none of them worked. I admittedly purchased 3 for a low price and they were cheap Chinese displays so I figured that was the issue. My last screen was bought from iFixIt and it still does not work. The display is completely black and like the OEM screen I can unlock the phone via muscle memory but the screen never turns on.

I am wondering if anyone can assist me as I am lost and not sure what to do anymore. I thought that based on the original screen getting green lines and flickering before dying that it was a screen issue but now I am not sure and it doesn't seem like anyone has had the same problem. I can't have gotten 4 bad replacement screens right? The phone still works and charges, the battery is not swollen and the internals all look good but the screen is just blank so I am not sure what is wrong with my phone.

EDIT: Attached pictures of the motherboard