Motion Computing M1400 ユーザーズマニュアル

Chapter 4  Using Your Motion Tablet PC

Motion Computing M1400 Tablet PC User Guide 40

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.

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.

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.

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.