The LG 40UB800 has a maximum display resolution of 4K Ultra HD. That's over four times the display resolution of a Full HD television, which is the most frequently found display resolution. 4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.
A 4K Ultra HD HD type is in fact the best display resolution amongst all televisions that were launched around the same time as the 40UB800.
A Not supported HD type is the worst display resolution across comparable types of television.
4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.