Elitegroup A907 (VD) - Manual (Page 75)

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Brightness
Use this scroll bar to adjust the overall intensity of light emitted by the video display.
Contrast
Use this scroll bar to adjust the contrast level between the bright and dark areas of the video
image. The highter the contrast, the brighter the bright areas and the darker the dark areas, and
vice
Gamma Correction
You can adjust the right color for your window screen by moving the “Brightness” adjustment
window to increase or decrease the right resolution for your screen display.