Elo TouchSystems AccuTouch 821615-000, Руководство по эксплуатации продукта

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Flat Panel Display Integration
While much of this chapter applies specifically to touchscreen integration on
CRT-based monitors, most of it also applies to integration on liquid crystal
monitors (LCD’s), electroluminescent (EL) monitors, and plasma monitors.
However, there are additional specific issues when integrating each type of flat
panel monitor:
• Transient Protection - Additional transient protection beyond what is
provided by an Elo touchscreen controller is not necessary.
• Optical Filters - While it is common to incorporate a circular polarizer with
an EL monitor, the CP filter may not be necessary because the touchscreen
provides much of the needed contrast enhancement.
• Mechanical - To prevent touchscreen breakage, there should be a compliant
gasket between the back of the touchscreen and the front of the monitor to
allow for variation in the surfaces when assembling. A gap is also required
between the touchscreen and the face of an LCD to prevent damage to the
monitor.
• Heat - Unlike CRT's, plasma, and EL monitors, backlit LCD’s may be a
significant source of heat. The situation may be more significant if the unit is
sealed. Any installation must avoid heat rise that exceeds the touchscreen
specification.
Where to Go from Here
The touchscreen component installation is now complete.
If you must ship your touchmonitor, remember that monitor manufacturers'
cartons are rarely satisfactory for more than one trip. The monitor's mechanical
strength may have been compromised by the touchscreen installation. You
should consider designing your own carton based on drop tests of the monitor
with the touchscreen installed, or overpacking the original carton with your
own.
Return to Chapter 3 for instructions on connecting the touchmonitor to your
computer.