Acer XB273U GXbmiipruzx 27" 16:9 240 Hz G-Sync IPS Gaming Monitor - Manual (Page 25)

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Note: Sets the degree of difference between light and dark areas.
7. Black Boost: Adjust the black level from 0 to 10. Enhances shadows by increasing the
brightness without changing lighter shades.
8. Low Blue Light: The display uses the low blue light panel. It complies with TÜV
Rheinland Low Blue Light Hardware Solution certification under factory reset/default
setting (Low Blue Light=Standard, Brightness: 80%, Contrast: 50%, CCT: 6 500K ).
9. ACM: Turn ACM on or off.
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Note: Set to "On", will be based on the current screen to dynamic contrast adjustment.
10. HDR: can control off, HDR-400 and 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”.
2. When HDR = Auto or HDR-400, some parameters :(ACM, Gamma, Contrast, Low
Blue Light, Black Boost…) functions is gray out and disable, and if you change other
adjustable parameters, the “Modes” will not jump to “User” Mode.
11. Super Sharpness: Turn the Super Sharpness On or Off. Super Sharpness technology
can simulate high-resolution images by boosting the pixel density of the original source
to make images sharper and clearer.
12. Max Brightness
Default: OFF
Off: Lower brightness
On: Restore original brightness.
When “Max Brightness” be changed, “Modes” will be reset to “Standard”.