ViewSonic VS18886 User Manual page 108

Menu Option
EOTF
HDMI Setting
Automatically adjusts the brightness levels of your image
according to the input source. You can also manually select a
brightness level to display better picture quality.
Auto
Sets the display to detect the range of the input signal
automatically.
Full
Sets the color range from 0~255.
Limited
Sets the color range from 15~255.
Description
108