Is 55A7100F is a FALD TV? If it is yes, It should be clean white all over the screen but I see a slight vignetting; the local dimming is not even...probably the pic is taken with a smartphone; you need to disable post-processing features (just use the manual/pro mode instead). If you intend to take a picture of the TV in a bright room, try to minimize the reflections onto the screen surface.

Update: Okay, I have checked the specs: it is just a Direct LED backlight with a VA panel.

This post has been edited by eclectice: Dec 22 2020, 06:08 PM