Planar LC1502R - Manual (Page 16)

16 LC1502R User’s Guide (020-0315-02B)
Brightness Control
The brightness of the monitor may be controlled automatically or manually, and the minimum
brightness is adjustable. By default, the monitor is configured for automatic brightness control with a
minimum brightness setting of approximately 250 cd/m 2 .
Automatic Brightness Control
In automatic brightness control mode, a photo sensor mounted on the front of the display measures
the ambient lighting condition (the illuminance). The monitor automatically and continually adjusts
its brightness to accommodate the ambient environment. In moderately bright environments the
monitor will reach maximum brightness. In dimly lit environments the monitor will operate at
minimum brightness.
The graph below shows the factory set response to ambient lighting conditions. Note that a typical
office environment is 300 to 500 lux, while a typical cloudy day is roughly 1000 lux.
Figure 1