The PD2706UA supports HDR10 signals with an automatic switchover. You’ll only have to turn on the dimming feature (Backlight Control) the first time to realize the full dynamic range. No picture controls are available, but my tests show they are unnecessary.
HDR Brightness and Contrast
The PD2706UA is rated for DisplayHDR 400, and it sails past that level with 520 nits of peak output. The backlight control was turned on to achieve this result. Black levels are relatively low, eclipsed only by the Mini LED screens, so contrast is a respectable 5,308:1. HDR definitely has more pop than SDR but if you want the ultimate image, only a Mini LED or OLED will do. But HDR is perfectly enjoyable on the PD2706UA.
Grayscale, EOTF and Color
The PD2706UA continues its color-accurate ways in HDR mode with a visually flawless grayscale and EOTF chart. There are no visible color errors and the Electro-Optical Transfer Function (EOTF), HDR’s version of gamma, is almost perfectly in line with the reference. The field dimming backlight makes shadow areas a tad dark with a slight bump as the tone-map transition point is reached at 65% brightness. This is excellent performance.
The HDR gamut charts show general over-saturation at the inner points with nearly full coverage of DCI-P3. HDR color looks very saturated but avoids becoming over-blown. Detail is sharp and delineated. The Rec.2020 chart shows similar behavior. Hue tracking is solid with only slight aberrations as the saturation level increases.
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