Knoll Systems LED1081 user manual Below Black Above Black

On your external test pattern source, select a PLUGE pattern. (PLUGE is an acronym for “Picture Line-Up Generation Equipment.”) Figure 4-9 shows a typical PLUGE pattern.

PLUGE patterns vary but generally consist of some combination of black, white and gray areas against a black background. The example above includes two vertical bars and four shaded boxes.

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Figure 4-9: Typical PLUGE Pattern for Adjusting Brightness

•Brightness: Select Brightness from the Image menu. Use the or buttons to adjust the level so that: The darkest black bars disappear into the background.

Note	For best results, Knoll Systems recommends that you set Dynamic Iris to Off before adjusting Brightness,
	Contrast and other image quality settings in IMAGE menu (refer to Dynamic Iris on page 50). After
	you have completed the initial calibration, set Dynamic Iris to On if desired.

•The dark gray areas are barely visible.

•The lighter gray areas are clearly visible.

•The white areas are a comfortable level of true white.

•The image contains only black, gray and white (no color).

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