NEC Display Wall Calibrator Guide de l'utilisateur télécharger pdf (Page 47)

Extended luminance stabilization time - Increases the waiting time for the display to stabilize while the luminance

is being adjusted by using the Brightness control. This option can be used if necessary to increase the accuracy of

the luminance adjustment when a Target with a Specic Level of Intensity is being used. It may signicantly increase

the calibration time, and is normally only useful when a very low intensity value is used. Try selecting this option if the

Intensity measured after calibration is signicantly different than the Target value due to the display stabilizing during

the calibration and proling steps.

Gamma Correction LUT Location - Sets the location where the Gamma Correction LUT is stored in the display. Some

display models support multiple storage locations. This can allow different Gamma Correction LUTs to be programmed

and easily selected via the IR Remote or a remote command sequence. This setting applies to both new calibrations

and previous calibrations that are restored. The default storage location will be used if the display model doesn’t support

the selection function.

47 | NEC DISPLAY WALL CALIBRATOR - USER’S GUIDE

Preferences dialog - Advanced tab

Calibration Method - Selects the how the calibration is performed in each display. Options are:

• Use LUTs - Uses LUTs (Look Up Tables) in the display to adjust the white point and grayscale correction. It

uses an internally generated test pattern when measuring the display. Custom gamma curves and contrast ratios

are possible. This method is slower than the Use RGB Gains method because there are more measurement steps,

and the LUT must be transmitted to each display.

• Use RGB Gains - Uses the Red, Green and Blue Gain controls on the display to adjust the white point to the

incoming video signal. A 100% white video signal must be displayed during the calibration. Custom gamma curves

can not be used, and only the xed Gamma values of 2.2, 2.4 and Native are available. This method is faster than

the Use LUTs method, but does not make any grayscale corrections.

See the Calibration Method Comparison section for a more detailed explanation, and how best to choose which to

use.

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NEC Display Wall Calibrator Guide de l'utilisateur Page 47