The highest display resolution of the Samsung ED75E is Full HD. That's 75% less display resolution than the most common HD type of 4K Ultra HD. Full HD TVs have a resolution of 1920 x 1080 pixels.
Full HD TVs have a resolution of 1920 x 1080 pixels.
If the display resolution of this TV is too low for you then you might want to look at the Sony KD-75XD8505 (4K Ultra HD) which is also cheaper.