Originally Posted by Malinkadink
That's because they can't match the best gaming IPS panels in image quality. They always fall short on contrast values usually 800-900:1 vs the IPS that get 1100:1 or higher. They also tend to have thicker AG coatings which isn't a fault of TN but that too degrades picture quality. Lastly, even if the TN can cover the same 100% sRGB color space as picked up by the colorimeter it doesn't matter because your eyes aren't a colorimeter. You're viewing the entire panel and as slight as it may be there is already a degradation of accuracy because of the viewing angles shifts. This problem becomes more apparent the larger the monitor is.
Now that may seem nit picky, but they're just facts. TNs still have a place in this world as they're the fastest LCDs around and don't suffer from IPS glow, but they sacrifice overall image quality to achieve that. The day OLED gaming monitors become a thing is the day TN days, hell all LCDs die that day
Colorimeters are like eyes, but precise and without placebo effects.
The BenQ XL2730Z have good viewing angles compared to other TNs from side to side, upper and bottom angles are bad though.
You could be watching the screen directly putting your front on the right or left bezel and there would be little to no gamma shift at all, can't say the same from top and bottom bezel but I don't think anyone is going to ever view their monitors like that.
Besides this is LCD were talking about, 900 contrast vs 1050 or so makes little to no difference, not like 400,000:1 to infinite from OLED.
I had an IPS XF270HU which uses the same panel than the XB270HU and despite having the best viewing angles it made me realize how much better things are when pixel response times are actually fast enough to considerably reduce blur, making the screen more clear when in motion with little to no overshoot, that for me blows away that 150:1 contrast difference any day.
But that's just me, can't wait for OLED HDR 4K 21:9 165Hz Freesync/Gsync