Resources / Surface Capacitive Touch
Technology
Surface Capacitive Touch Technology
Surface capacitive touchscreens provide a transparent protective coating which makes the sensor
resistant to scratches and abrasions. Touch performance is unaffected by everyday use and mishaps such as
dirt, dust, condensation, liquid spills, contaminants or cleaning solutions; however, touch activation can
only be done by an ungloved hand.
Key Product Features • High-endurance solution that
is unaffected by on-screen contaminants such as chemicals, grease, dirt, and water
• Ideal for touch applications where exceptional performance, vibrant optics and environmental robustness is
required, 24-hours a day, 7 days a week.
• High light transmission provides superior display performance
• Smooth surface allows for improved scroll performance
Performance
• Input Method: Finger input
• Accuracy: Reported touch coordinates are within 1.0% of true position (based on the diagonal dimension of the
screen) within the precision area
• Resolution: Touch screen resolution defaults to settings in the electronics and software, generally 1024 x 1024,
but capable of 16K x16K
• Linearization: Factory linearization values are stored in the attached controller, represented in a 2D bar code,
or in the touch screen NOVRAM when present
Optics
• Light Transmission: 91.5% light transmission (±1.5%)
• Surface Finish: Clear hard coat with optimal anti-glare properties. Scratch resistant top coat provides smooth,
easy glide touch surface
Mechanical • Minimum Contact Requirement: 5.4 ms
for finger input with EX II series controller
• Glass Thickness: 3.18mm (±0.25mm) typical. (Glass only, not including flexible tail connection; reference touch
screen drawing for details.)
• Display Size Supported: 6.4" to 32" diagonal (4.3, 16:9, 16:10)
• Surface Scratch Hardness: A Mohs pick with a hardness rating of 7 or higher is required to induce a scratch which
will cause a functional failure. Functionality unaffected by severe abrasion per MIL-C-675-C, exceeding number of
specified cycles. Functionality unaffected by 10,500 grams of force per Balance Beam Scrape Adhesion Mar Tester
with loop stylus
• NEMA Rating: NEMA (Ingress Protection) sealable
• Cleaning: Water, isopropyl alcohol, or similar non-abrasive cleaners
Reliability • Surface Obstructions: Touch screens operation withstands
surface contaminants such as, dirt, dust and grease
• Chemical Resistance: Highly resistant to a variety of solvents, acids, and household chemicals in accordance with
ASTM-D-1308-02e1 and ASTM-F-1598-95 (reapproved 2002)
• Liquid Resistance: Liquids on screen do not impede touch screen performance
• Operating Temperature: -40° C to 70° C for the touch screen
• Storage Temperature: Always store the touch screen in its original shipping container between -50°C and 85°C (up
to 90% RH from 0° C to + 35° C).
• Humidity: Up to 90% RH from 0° C to +35° C, non-condensing For more information please Contact Us.
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