Brightness And Contrast
To read about our monitor tests in-depth, please check out Display Testing Explained: How We Test Monitors and TVs. Brightness and Contrast testing is covered on page two.
Uncalibrated – Maximum Backlight Level
The 276E6 is a somewhat unique product because it offers a wide gamut at a very low price point. It isn't marketed as a professional display, so on the surface, it seems unfair to compare it to five high-end screens. But considering what it does offer, our test results show it to be a tremendous value even though it won't take home any awards for precise accuracy.
Today's group consists of BenQ's SW2700PT and PG2401PT, NEC's EA244UHD and PA322UHD and the HP Z27q. All five are wide gamut displays with Adobe RGB and sRGB presets.
It would seem that Quantum Dots do more than just expand the color gamut. The 276E6 is capable of prodigious light output while consuming relatively little current. We don't see monitors that can exceed 400cd/m2 too often. If your office is brightly lit or has a sunny window, this screen is ideal.
Of course this results in a high maximum black level but as you'll see below, contrast is on par with most other IPS displays.
Max contrast just breaks the 1000:1 mark, which we're glad to see. This is without using the SmartContrast option, which we think crushes detail too much. The only drawback here is that you're forced to use the Adobe RGB mode for full output. That mode is too green for our tastes and should be calibrated. If you don't plan to make adjustments the best mode is Color Temp, which is very accurate but locks brightness at 370cd/m2.
Uncalibrated – Minimum Backlight Level
The backlight bottoms out at a somewhat high level of 95.9078cd/m2. Some users prefer 80 or even 50cd/m2 when working in a dark environment.
The higher minimum white level means a fifth-place finish in the min-black test. Contrast holds steady at over 1000:1 though.
Fortunately the 276E6's shiny new Quantum Dot technology doesn't affect contrast consistency. It still maintains a decent figure of 1013.5:1, which puts it ahead of many professional screens. We'll talk more about its color presentation later but what we're seeing so far is an extremely bright, rich image with plenty of depth and saturation that goes beyond most typical computer monitors.
After Calibration to 200cd/m2
Calibration removes just a bit of the 276E6's contrast performance but the black level is still firmly mid-pack in this group of high-end screens. Aside from the extra brightness afforded by the Quantum Dots this display performs like a typical IPS monitor.
By reducing green and blue in the white balance calibration, and dropping the Contrast slider one click, we've taken the sequential contrast result down by 11 percent. Considering the gains made in grayscale accuracy, we think it's well worth the effort. If you decide to stick with the Color Temp mode, the contrast is lower yet—887.4:1 in fact. It's mainly due to a high black level. Our recommendation is to go with Adobe RGB and dial in our settings above or perform your own calibration.
ANSI Contrast Ratio
You'll see on page seven that our 276E6 sample's field uniformity is pretty good so this ANSI result is about what we expected. The spoiler is in the lower left portion of the screen where black level is slightly higher than the other zones. Overall though we're happy with this result. The panel seems to be of good quality with excellent clarity and contrast.