interactive screens
IR/UV protection
LCD fluid is susceptible to
damage when subjected to light
waves at the extreme ends of
the spectrum. These include
both Infrared and ultraviolet. To
prevent this happening a non-
metallic IR and UV blocking filter,
which can be either included as a
laminated hard coat as part of the
touchscreen or directly optically
bonded to the front of the LCD is
an effective option. The effect of
IR is the blackening of the screen.
This filter, in conjunction with a
high clearing temperature fluid
and optical bonding, will give the
LCD TFT the protection required.
Touchscreen & filter choice
Kiosks are usually deployed in
locations where they can be
subjected to physical abuse. It’s
therefore important to ensure
that this weak point of the kiosk is
as rugged as possible. Using PCAP
technology, thermally/chemically
toughened touchscreens and
filters up to 10mm thick provide
a solution that will withstand the
toughest of abuse. But it’s also
worth remembering that having
the display is only one part of the
solution, it’s also important to
have the correct drive electronics.
Housing
The final stage is those customers
who want a simple chassis
solution in which they can build
the unit simply into the kiosk.
Purchasing a simple desktop
monitor often invalidates any
manufacturer’s warranty when
using a Kiosk application, and it
doesn’t give the option for a clean
and flat finish. n
KIOSK solutions 25