NEC MultiSync LCD1990SXi User Manual page 30

Using the Auto Brightness function -
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.
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.
lighting level of room
Screen Brightness value using the Auto Brightness function
BRIGHTNESS level set
for the monitor to use
when ambient lighting
level is high.
Bright Ambient
Lighting Conditions
Dim Ambient
Lighting Conditions
28
cont.
BRIGHTNESS range