The UN40HU7000 has a maximum display resolution of 4K Ultra HD. That's over four times the display resolution of the most frequently found HD type of Full HD. 4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.
A 4K Ultra HD HD type is actually the best display resolution across all mid-size TVs that are a similar age to the UN40HU7000.
An HD ready HD type is the worst display resolution across similar types of TV.
4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.