AccuTouch Touchscreen Specifications
Mechanical
Construction Top: Polyester with outside hard-surface coating with clear or antiglare finish.
Inside: Transparent conductive coating.
Bottom: Glass substrate with uniform resistive coating. Top and bottom layers
separated by patented separator dots.
Positional Accuracy Standard deviation of error is less than 0.080 in. (2.03 mm). This equates to less
than ±1%.
Touchpoint Density More than 100,000 touchpoints/in
2
(15,500 touchpoints/cm
2
).
Touch Activation Force Typically less than 4 ounces (113 grams).
Surface Durability Meets Taber Abrasion Test (ASTM D1044), CS-10F wheel, 500 g. Meets pencil
hardness 3H.
Expected Life AccuTouch technology has been operationally tested to greater than 35 million
Performance touches in one location without failure, using a stylus similar to a finger.
Optical
Light Transmission Typically 85% at 550-nm wavelength (visible light spectrum).
(per ASTM D1003)
Visual Resolution All measurements made using USAF 1951 Resolution Chart, under 30 X
magnification, with test unit located approximately 1.5 in. (38 mm) from surface
of resolution chart.
Antiglare surface: 6:1 minimum.
Haze (per ASTM D1003) Antiglare surface: Less than 15%.
Gloss (per ASTM D2457) Antiglare surface: 90 ± 20 gloss units tested on a hard-coated front surface.
C-31
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