Elo TouchSystems IntelliTouch Ultra Product Manual Download

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Flat Panel Display Integration

System Evaluation

As the IntelliTouch system gain is dynamic, and responds to a changing environ-

As the IntelliTouch system gain is dynamic, and responds to a changing environ-
ment quickly, the application of a seal to the system typically produces no user

ment quickly, the application of a seal to the system typically produces no user
perceivable effects. However, the designer should be aware of the impact of the

perceivable effects. However, the designer should be aware of the impact of the
seal on system performance. Elo provides several software tools that can aid in

seal on system performance. Elo provides several software tools that can aid in

this assessment. Use these tools to establish baseline performance prior to the

application of the seal, as well as after. Contact Elo Technical Support for details.

LAT

ANEL

ISPLAY

NTEGRATION

While much of this chapter applies specifically to touchscreen integration on

While much of this chapter applies specifically to touchscreen integration on
CRT-based displays, most of it also applies to integration on liquid crystal (LCD),

CRT-based displays, most of it also applies to integration on liquid crystal (LCD),
electroluminescent (EL), and plasma displays. However, there are additional

electroluminescent (EL), and plasma displays. However, there are additional
specific issues when integrating each type of flat panel display:

specific issues when integrating each type of flat panel display:

••

To prevent touchscreen breakage, there should be a compliant gasket between

the back of the touchscreen and the front of the display to allow for variation

in the surfaces when assembling. A gap is also required between the

in the surfaces when assembling. A gap is also required between the
touchscreen and the face of an LCD display to prevent damage to the display.

touchscreen and the face of an LCD display to prevent damage to the display.

••

If a seal is used between the display bezel and the touchscreen, insure that the

If a seal is used between the display bezel and the touchscreen, insure that the
display and its mounting can withstand the force from the compressed seal.

display and its mounting can withstand the force from the compressed seal.

••

Unlike CRT's, plasma, EL, and backlit LCD displays may be a significant

Unlike CRT's, plasma, EL, and backlit LCD displays may be a significant
source of heat. The situation may be more significant if the unit is sealed. Any

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.

installation must avoid heat rise that exceeds the touchscreen specification.

HERE TO

O FROM

ERE

The touchscreen component installation is now complete.

If you must ship your touch monitor, remember that monitor manufacturers'

If you must ship your touch monitor, remember that monitor manufacturers'
cartons are rarely satisfactory for more than one trip. The display's mechanical

cartons are rarely satisfactory for more than one trip. The display's mechanical
strength may have been compromised by the touchscreen installation. You should

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

consider designing your own carton based on drop tests of the monitor with the
touchscreen installed, or overpacking the original carton with your own.

touchscreen installed, or overpacking the original carton with your own.

Return to Chapter 3 for instructions on connecting the touch monitor to your

Return to Chapter 3 for instructions on connecting the touch monitor to your
computer.

computer.