Tom's Hardware Guide published a review on AOC C4008VU8 UHD Monitor
A quote from the article:
AOC's C4008VU8 curved display, sports a 40" VA panel with 3840x2160 resolution & an all-white chassis. High style & big size in one package for less than $800.AOC C4008VU8 UHD Monitor Review @ Toms Hardware
Most users toil away with 22? and 24? displays, but many secretly wish for a jumbo screen. Some fill that desire with an inexpensive television. It's not too hard to find a 40? or larger Ultra HD TV at the local wholesale club for less than $1000. But going this route can have a few downsides. First off, you won't find a consumer TV with DisplayPort. And more importantly, most sets won't accept signals above 60Hz, even if they refresh at a higher rate. Then there are video enhancements that sometimes can't be turned off, robbing the image of clarity and depth. We still maintain that for the best quality, only a dedicated computer monitor will do.