If I saw your point right then this kind of problem usually is not showing distorted geometry of the panel, but uneven lines of the bezel. It simply shows how bezels are made of plastic. They ain't straight!
You can try to hold a good linear to panel display field to see if it's geometrically correct. If you came from a CRT you might also think your TFT is geometrically distorted since your eyes/brain are still used to the distorted CRT image.