NEC LCD1990FXTM user manual Using the Auto Brightness function

Using the Auto Brightness function - cont.

When the “Auto Brightness” function is enabled, the Brightness level of the screen changes automatically according to the lighting conditions of the room. (Figure 4).

BRIGHTNESS level set for the monitor to use when ambient lighting level is low.

BRIGHTNESS level set for the monitor to use when ambient lighting level is high.

BRIGHTNESS range

Bright Ambient

Lighting Conditions

	Dim Ambient
lighting level of room	Lighting Conditions

Screen Brightness value using the Auto Brightness function

Figure 4

Lb : Border between bright and dim lighting conditions; set at factory

L1 : BRIGHTNESS level set for the monitor to use when ambient lighting level is high (L1>Lb)

L2 : BRIGHTNESS level set for the monitor to use when ambient lighting level is low (L2<Lb)

L1 and L2 are the brightness levels set by the user to compensate for changes in ambient lighting.

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