Acer CB2 Series CB272U smiiprx 27" 16:9 HDR FreeSync IPS Monitor - Manual (Page 24)

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6. Contrast: Adjust the contrast from 0 to 100.
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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. Blue Light: Filters out blue light to protect your eyes by adjusting how much blue light is
shown -- 80%, 70%, 60%, or 50%.
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Note: A higher value allows more blue light to pass through, so in order to
achieve the best protection, please select a lower value, of which 50% is in the
best state and has been tested by TÜV Rheinland and meet the requirements of TÜV
Rheinland's “Low Blue Light Content” standard.
9. ACM: Turn ACM on or off.
Note: Set to "On", will be based on the current screen to dynamic contrast adjustment.
10. 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.
11. 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:
• When HDR=Auto, the Modes will also be automatically set to “HDR”.
• When HDR=Auto, some parameters: (ACM, Gamma, Contrast, 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.