ViewSonic VP191b User Manual page 13

Main Menu Controls
Adjust the menu items shown below by using the up and down buttons.
Control Explanation
Auto Image Adjust sizes and centers the screen image automatically.
Contrast adjusts the difference between the image background (black level)
and the foreground (white level).
Brightness adjusts background black level of the screen image.
Input Select toggles between inputs if you have more than one computer
connected to the VP191b/VP191s.
Color Adjust provides several color adjustment modes: preset color
temperatures and RGB which allows you to adjust red (R), green (G), and blue
(B) separately. The factory setting for this product is 6500K (6500 Kelvin).
9300K - Adds blue to the screen image for cooler white (used in most office
settings with fluorescent lighting).
6500K - Adds red to the screen image for warmer white and richer red.
ViewSonic VP191b/VP191s 11