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Chapter 4
Using Your Motion Tablet PC
Motion Computing M1400 Tablet PC User Guide 40
AMBIENT LIGHT
SENSOR (ALS)
The Motion Tablet PC Ambient Light Sensor (ALS), located on the front
panel, detects light in the environment. When enabled, it adjusts the display
brightness to changing light conditions. ALS maintains display viewability
and can increase battery life as the system optimizes the display backlight in
different lighting conditions, thus reducing power consumption whenever
lighting conditions allow.
NOTE: For optimal battery life benefits and viewability, we recommend that you
set the brightness slider to the mid-point or slightly above or below mid-point. If
you set the slider higher than this, you lose some of the battery-saving benefits,
while gaining minimal improvement in viewability.
SETTING
“FIXED”
DISPLAY
BRIGHTNESS:
ALS OFF
To set the display to a fixed level (ALS is off):
1. Open the Motion Dashboard.
2. Under Display, tap the radio
button beside Fixed.
3. Move the slider until the
backlight on the Tablet PC
display is at the desired level.
The system will keep the
same brightness level at all times; that is, it will not adjust the display
brightness in changing ambient lighting. This may sacrifice viewabil-
ity
NOTE: In low-light conditions, the “Fixed” brightness setting may keep the
display brighter than is needed for viewability. Keeping the brightness always at
the same level may also use more battery power than necessary.
SETTING
“DYNAMIC”
DISPLAY
B
RIGHTNESS:
ALS O
N
To set the display so that the system adjusts the brightness to the desired
level under changing lighting conditions while maintaining viewability
(ALS is on):
1. Open the Motion Dashboard.
2. Under Display, tap the radio button beside Dynamic.
3. Move the slider until the backlight on the Tablet PC display is at the
desired level. The system will automatically adjust the display
brightness in changing ambient lighting conditions.
NOTE: In low-light conditions, the “Dynamic” brightness setting keeps the
brightness at an optimal level for viewability. It dims the display, as appropriate,
which conserves battery power.
TURNING THE
D
ISPLAY
B
ACKLIGHT ON
AND OFF
To turn the display off:
1. Open the Motion Dashboard.
2. Tap Off.
3. To turn the display back on, wave your pen over the display or press
any key on the keyboard.