Samsung uhd smart 40 tv install watching tv in 3840 2160 pixel resolution 4 times better than full hd is an incredible treat for your eyes it has even been granted certified ultra hd status for reaching the highest 4k technology standards uhd dimming technology also creates stunning colours and exceptional clarity in every scene with 7 times more colour adjustment points than other conventional led tvs samsungs clever 4 stage ultra hd upscaling feature converts lower resolut