Thank you very much. I also found the dimensions, but can't really believe it. Therefore my question to someone who owns such a screen is how big this panel is. CHatGPT has indicated 339.2mm

It's quite simple: 49 inches x 2.54 cm = approx. 124.5 cm diagonally

Here are the dimensions according to the description:

Width: 1194.7 mm
Height: 529.30 mm

I hope I was able to help.

Kind regards
Georgios