Specifications

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Near Field Imaging Advantages
n Resolution - Near field imaging
touch systems can deliver a resolution of up
to 1024 x 1024 touch points.
n Calibration - Near field imaging
systems are not subject to sensor drift. The
touch system needs only to be aligned with
its corresponding display.
n Sealability - Near field imaging
touch systems can be sealed to NEMA 4
requirements, preventing water and dirt from
penetrating the display’s internal electronics.
n Environmental Resistance - Near
field imaging sensors are constructed of
reinforced glass that is highly impact-
resistant.
Near Field Imaging Disadvantages
n Transmissivity - Near field imaging
touch systems typically have a transmissivity
of 85%, resulting in some degradation of
image color and optical quality.
n Stylus Requirements - Near field
imaging touch systems require a slightly
conductive stylus to operate. Materials that
will not conduct a current, such as a pencil,
will not activate the system.
n Integration - Near field imaging
touch systems require an invasive
integration, which requires disassembly of
the display and permanent optical bonding of
the sensor to the display.
n Parallax - Near Field Imaging touch
systems have some degree of parallax.