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Capacitive Touch Screens work great with Kiosk Displays
Capacitive touch screen technology
is recommended for use within KIOSK applications that require
a "finger touch". It will not operate with either
a gloved hand or with a mechanical stylus. It is made of glass,
which makes it extremely durable and scratch resistant. This
glass overlay has a coating that stores the charge deposited
over its surface electrically. Capacitive touchscreens
operate using oscillator circuits that are located in each
corner of the glass overlay and measure the capacitance of
the area being "touched". Depending on where the
person touches the overlay, the oscillators will vary in frequency.
Then a touchscreen controller measures the frequency variations
to ascertain the coordinates of the person's touch. When used
with flat panel displays, capacitive offers drift-free stable
performance that is not susceptible to deterioration over
time. A capacitive touch screen is impervious to grease,
dirt and water, which makes it ideal for frequent use. It
can also be gasket sealed for NEMA 4 and NEMA 4X
operation. Since a capacitive touchscreen is made of
glass, it is susceptible to breakage.
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