Grayscale, color fidelity, saturation and gamut to factory settings
Typical for QD-OLED, there will be around 80 percent Rec. 2020 and a contrast that will give any LCD a run for its money. But first things first. I measured the AG276QZD2 with the Konica Minolta CA-410, as my UPRtek MK550T is still in Taiwan for repair and recalibration. As mentioned in the last article, the CA-410 is not a toy, but one of the fastest and most accurate colorimeters. It is used by almost all manufacturers for a reason.
Color space coverage
Gray Scale, Saturation, ColorChecker @ Default Settings (10 % APL)
Gray Scale, Saturation, ColorChecker @ OSD sRGB Color Space (10 % APL)
Gray Scale, Saturation, ColorChecker @ OSD DCI-P3 Color Space (10 % APL)
Gray Scale, Saturation, ColorChecker @ OSD Default Windows sRGB Mode (10 % APL)
Interim conclusion
This is now the fifth monitor I’ve tested from TPV and they all have the same fault. The RGB balance drifts apart, especially in the sRGB/DCI-P3 profile – this gives a nice red cast. I have already had a lengthy telephone conversation with TPV about this, including a live demonstration with my measuring equipment. In my opinion, the error must be systematic, because I measure exactly the same deviation here with both the MK550T and the CA-410. I’m curious to see what TPV will do about this.
The AG276QZD2 falls just short of AOC’s advertised avg. DeltaE 2000 <2, both in sRGB and P3 mode. AOC states on the measurement report that the DeltaE CIE 94 was measured. So not the current standard DeltaE 2000 or DeltaE ITP. A good DeltaE 94 is much easier to achieve (to exaggerate – more of an estimate). The whole thing is misleading, because on the homepage it only says DeltaE <2, unfortunately without specifying which standard. I can’t measure this with Calman because the software doesn’t support the old DeltaE 94. I have already communicated the issue to TPV (AOC).
Fortunately, there is the Windows 11 (24H2) sRGB mode, which, in conjunction with the default settings, gives the AG276QZD2 a DeltaE <2 for sRGB. The sRGB and DCI-P3 OSD profiles are still easily suitable for everyday use, to be honest. I think it’s a shame that these profiles are locked in relation to the RGB settings. Nothing can be improved here.
Most gamers will probably play in the default settings, i.e. with full Rec.2020, because this gives the best color splendor to the eyes. Or you can use the Windows sRGB mode, where you can gain a lot more color accuracy by adjusting the white point or RGB – I’ll show you that later.
- 1 - Introduction, Features and Specs
- 2 - Workmanship and Details
- 3 - How we measure: Equipment and Methods
- 4 - Pixel Response Times
- 5 - Display Latencies
- 6 - Color-Performance @ Default Settings
- 7 - Direct Comparison and Power Consumption
- 8 - Color-Performance calibrated
- 9 - HDR-Performance
- 10 - Summary and Conclusion
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