Acer 34" 1440p 165Hz Curved Ultrawide Gaming Monitor - Manual (Page 23)

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11.
can simulate high-resolution images by boosting the pixel density of the original source
to make images sharper and clearer.
10. HDR: can control off, auto, the default is off, set to auto will automatically detect
and deal with HDR signal.
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Note:
1. When HDR = Auto, the Modes will also be automatically set to “HDR”.
12. Max BrightnessThe default is Off, select On to compensate for higher brightness.
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Note: Please be aware that energy consumption may increase with these settings.