LXE MX3X, Reference Manual

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48 Display
MX3X Reference Guide E-EQ-MX3XRG-A
Display
The MX3X Touch Screen Display is an LCD unit capable of supporting VGA graphics modes.
Display size is 640 x 240 pixels. The display covering is designed to resist stains. The touch
screen allows signature capture and touch input. A pen stylus is included. The touch screen
responds to an actuation force (touch) of 4 oz. of pressure (or greater).
There are two types of displays available: transflective greyscale monochrome and transmissive
color. The transmissive color display is optimized for indoor lighting. It cannot be used without
the backlight. The transflective monochrome is optimized for outdoor use but may also be used
indoors. The monochrome display has an electroluminescent backlight. The color display has a
CCFL (Cold-Cathode Fluorescent Lighting) backlight.
The transflective display appears to have a greenish hue when the display is off. The transmissive
display appears black when the display is off.
The choice between font sizes is made in the Control Panel option Display | Appearance . Font
size selection may be overridden by a user supplied application.
The display is automatically turned off when the MX3X System Idle or Suspend timers expire.
Display and Display Backlight Timer
When the System Idle timer expires the display is turned off. The default value for the battery
power timer is 15 seconds. The default value for the external power timer is 2 minutes.
When the User Idle timer expires the screen display backlight is turned off. The default value for
the battery power timer is 3 seconds. The default value for the external power timer is 2 minutes.
Both values can be adjusted using the Control Panel option "Display | Backlight" or "Power |
Schemes". Any of the following will wake the display and display backlight:
Any key on the keypad
Stylus touch on the touch screen
Power button tap
When the display wakes up, the timers will begin the countdown again. When any of the above
events occurs prior to the timers expiring, the timers start the countdown again.
Touchscreen
The touchscreen provides a means of inputting information into the MX3X by touching the screen
using the LXE approved stylus (the Passive Pen – see Chapter 1 section titled “Accessories.”)
Touchscreen operation is not affected by Display Backlighting.
Touchscreen operation is affected by the Display mode. If the display is off, a touch to the display
will turn on the display but no touch data will be sent to the running application until the next
touch.