The highest display resolution of the LC-50LE761 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.
It may also be worth considering one of the alternative Full HD TVs currently available including the 50PFT6510, the 55PFT6550 (£529.00), or the 55PFT5500 all from Philips which is cheaper.
TVs with a higher display resolution that might be worth considering include the LG 55UF770 (£699.00) (4K Ultra HD and higher rated), or the Philips 50PUT6400 (£399.00) (4K Ultra HD and higher rated); or the Philips 55PUT6400 (£529.00) (4K Ultra HD and cheaper).