he AOC U2790PQU brings 4K to an incredible new low price. The U2790PQU certainly doesn’t seem to skimp in any part of its specification. Aside from the 4K (3,840 x 2,160) resolution, the panel uses IPS technology, which usually comes at a premium. The maximum 4K refresh is just 60Hz and pixel response 5ms, but both are pretty standard for a 4K IPS panel. The maximum brightness is a reasonable 350cd/m2, and static contrast 1,000:1, again typical for IPS.