Acer 31.5" ED320Q Xbmiipx 240 Hz Curved Gaming Monitor - Manual (Page 26)

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Adjusting the Picture
1. Brightness: Adjust the brightness from 0 to 100.
Note: Adjusts the balance between light and dark shades.
2. Contrast: adjust the contrast from 0 to 100.
Note: Sets the degree of difference between light and dark areas.
3. Blue Light: filter out blue light by adjusting different Blue Light showing
ratio - 80%, 70%, 60%, 50%.
Note: Higher values allow more blue light through. For the best
protection, select a lower value.
4. Black Boost: This boosts the amplitude of the dark color levels of the
display— blacks will be less black. The higher the level, the higher the
boost.
5. ACM: Turn ACM on or off. The default is off.