A couple of days ago ASUS announced the 31.5-inch PQ31 4K Ultra HD gaming monitor, but it looks like they have an even bigger Ultra HD Display. At Computex they took the 39-inch 4K Ultra HD display out for just a little bit and some photos were taken, this thing is huge!
The 39-inch display will offer a native resolution of 3840 x 2160 pixels, a single figure response time, 60 Hz refresh rate (DisplayPort), 5000:1 static contrast ratio with dynamic mega-contrast, 350 cd/m² brightness, 170°/170° viewing angles.
As far as inputs go you have DisplayPort 1.2 and two HDMI. It also has a different type of stand compared to the PQ321. That is all we know so far, expect to hear more about this display very soon!