40in tx 40dx700b panasonic uhd 4k tv with hdr tuned by filmmakers to deliver breathtaking colour quality contrast and brightness 4k ultra hd delivers four times the picture resolution of a normal hd tv with their 3840 x 2160 resolution 4k ultra hd tvs make pictures look so detailed and pristine that youll feel like youre looking at the real world through a window rather than watching tv especially when features like high brightnesshigh colour space panels and the powerful quad core pro