@bradmorris49199 that looks like your panel has lost contact with the driver boards. The driver boards are the long skinny boards that are connected with the LCD panel via some very fine ribbon cables. Those are not replaceable.
What you can try is to open the back of the TV and located those boards. Then find the ribbon cable that connects to the area where the black stripes are. Now push on the ribbon cable to try and establish an electrical connection between the panel and teh ribbon cable. If the picture comes back on, you know it is that connection. Sometimes placing something over that ribbon and then using a piece of good adhesive tape can keep that pressure applied and allows you to use the TV for a bit longer.
If pressure does not work, check the ribbon cables in between the driver boards and check the driver boards for any failed (burned or missing) components. Of course, you also want to check the ribbon cables going to the driver boards and either coming from the T-con board or the mainboard. Not sure if your mainboard has the T-con board integrated.
Just as an FYI, errors like this are never a main board issue.