Touch Screen Comparisons
Touch Screen Technologies - Comparison Table
| KEY: | Bad |
Poor |
Neutral |
Good |
Best |
| Performance: | APR Acoustic Pulse |
RESISTIVE AccuTouch 5-wire |
SAW IntelliTouch, I-Plus SecureTouch |
CAPACITIVE Surface Cap. |
INFRARED CarrollTouch |
| Response Time1 | |
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| Sensitivity (required touch force) | |
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2 |
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| Resolution | |
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| Accuracy | |
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| Calibration Stability | |
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| Drag | |
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| Touch and Hold | 3 |
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| Multi-Touch | I-Touch only |
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| Z-axis | |
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| Simultaneous Touch Rejection4 | |
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| Immunity to objects on screen | |
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| Immunity to Unintentional Touch | |
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| Input Flexibility: | APR Acoustic Pulse |
RESISTIVE AccuTouch 5-wire |
SAW IntelliTouch, I-Plus SecureTouch |
CAPACITIVE Surface Cap. |
INFRARED CarrollTouch |
| Finger | |
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| Glove | |
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| Fingernail | |
5 |
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| Credit Card | |
5 |
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| Hard Tip Stylus | |
5 |
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| Soft Tip Stylus | |
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| Optics: | |||||
| Light Transmission | |
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| Antiglare | |
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| No Change to LCD Color | |
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| Mechanical: | |||||
| Zero Bezel Available | |
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| Narrow Border Available | |
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| Electrical: | |
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| Low Power | |
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| Immunity to Surrounding Electric or Magnetic Fields | |
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| Low Emissions | |
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| Environmental: | APR Acoustic Pulse |
RESISTIVE AccuTouch 5-wire |
SAW IntelliTouch, I-Plus SecureTouch |
CAPACITIVE Surface Cap. |
INFRARED CarrollTouch |
| Temperature | |
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| Humidity | |
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| Shock; Vibration | |
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| Altitude | |
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| Chemical Resistance | |
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| Liquids | |
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| Sealability6 | |
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| Scratch Resistance | |
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| Breakage Resistance | |
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/7 |
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| Safe Break Pattern | |
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/8 |
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| UV Light | |
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| High Ambient Light | |
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| Durability; Wear | |
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Notes
1 Response time is generally specified as the time between touch detection and coordinate report by the controller. It does not include te time for the touch location to be presented on the display (additional layers of hardware, driver, processing, operating system overhead and application processing can all add delays).
2 Capacitive may not be responsive to people with low body capacitance or in very cold temperatures.
3 This feature is currently in development
4 means that 2 simultaneous touches are averaged; means that the 2nd touch is ignored.
5 Fingernail, credit card and hard tip stylus can all be used on resistive but can damage the flexible top layer and lead to failure.
6 Open-frame monitors can be sealed to NEMA-4 or higher, depending on customer implementation.
7 IntelliTouch surface wave is available as SecureTouch, which meets UL-60950.
8 SecureTouch is available with tempered glass.
No guarantee of acceptability of the technology to the application is implied by this quick reference tabl
