QNIX QX2710 LED DPmulti True10 Review
by Chris Heinonen on April 11, 2014 6:00 AM ESTDisplay Uniformity
The uniformity of the QNIX display is where we really start to see the cost savings become visible. As I've found when looking at the ultra-wide displays, the taller the monitor the harder it is to get a backlight uniform to within a certain tolerance. If you have a larger tolerance, it will be cheaper and easier to manufacturer but you'll have less uniform backlighting. This is why professional monitors can be so expensive, and it's an area where it looks like QNIX has managed to save on costs.
Looking at the black uniformity, while the two top corners have a large drop-off in light level, the lower right corner is quite bright.
Looking at the White Uniformity, the same drop-off in light occurs here. Somewhat surprisingly this fall-off occurs in the bright corner as well. The center measures in at 198 cd/m2 but most of the panel drops off below that. Corners fall as much as 22% which is clearly visible if you look for it. If a monitor is within 10% it is hard to tell the difference I find, but once you get to 20% you can notice it when you are viewing something that uses the whole screen.
This causes the contrast on the whole panel to max-out at 750:1. In the corners is can fall as low as 468:1 which is a rather washed out appearance. Overall the contrast is fairly consistent, but the contrast of 750:1 isn’t great to start with.
The real issue is the color uniformity of the QNIX panel. While the center is fine, the edges have visible color shifts. Since we consider a dE2000 error level of < 3.0 to be invisible when in motion, but only 1.0 when looking at still images, these are errors you will certainly see. When it comes to using the QNIX for photo editing and other color critical work, it really won’t work well because of these uniformity issues.
The uniformity is where the QNIX really falters. It’s the first display with color uniformity errors that fall into the red zone in multiple regions. This could be just my sample, or it could be that the tolerances are lower for backlight alignment, allowing more monitors to pass inspection and lowering prices. I can't be certain but it seems that uniformity is a major area where costs have been saved.
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Communism - Friday, April 11, 2014 - link
The X-Star DP2710 is a Samsung PLS display.The one reviewed is an AUOptronics AHVA display.
Therein lies the difference.
tbonanno - Monday, April 14, 2014 - link
Where did you hear that? Every site I see the display port version for sale it says Samsung PLS as well.okashira - Friday, April 11, 2014 - link
Your DP2710LED is superior to the reviewed monitor:-better contrast
-better uniformity
-better colors
-overclockable
-no input lag
Folterknecht - Friday, April 11, 2014 - link
Please use metric system for measurements or at least also list them. After all anandtech deals with technical gadgets and not with flour, sugar and wood.Ubercake - Friday, April 11, 2014 - link
It's funny... Let's use the metric system to talk about a 27" (or should we say 68.58cm?) panel.mr_tawan - Friday, April 11, 2014 - link
In my case, which I live in Thailand where the standard measurements are in metric system, the screen size in general terms are in imperial. However when reporting the exact dimension of the display, the measurements are in metric. (for example Sony KDL-70W850B is 70" LCD TV, the dimension is 1,586x970x370mm).I guess this is the case in many countries as well.
There are brochures that even has the diagonal screen size in metric system written in parenthesis after the imperial one, but no one pays attention to it.
QuantumPion - Friday, April 11, 2014 - link
Also note according to the overclock.net forums, only the DVI-only panels can truly overclock refresh rate. The multi-input panels can force higher refresh rate, but they just simply drop the extra frames.cheinonen - Friday, April 11, 2014 - link
Thanks for pointing this out. I tested this today and it is the case, so I updated the review. Screenshots are included as well. I'll make sure to run that test in the future to avoid this mistake.blackoctagon - Thursday, May 1, 2014 - link
Sounds like you may want to review another (genuinely overclockable) screen, like the Overlord Tempest X270OCcoachingjoy - Friday, April 11, 2014 - link
Bought a Yamakasi 27" WQHD for ~310 USD. It's great .. except it has a dark speck just to the left of center between the panel and glass. If one concentrates on this imperfection it would drive anyone nuts. I just focus on the 310 USD and everything is fine, every once and awhile though......