Industrial Panel PC
PPC-100 series Panel-mount PC with Touchscreen LCD
PPC-100 series panel PC is available with two types of touch screens—resistive touch screen and surface acoustic wave touch screen. The following comparison table may help you select the type best suited for your application.
What's your touch screen needs?
The answers to a few questions will help you understand
more:
- Activation—What type of touch activation do you need: finger only, gloved finger, or stylus?
- Image clarity—Is optical clarity the most important requirement?
- Environmental and Durability —Will your touch screen be exposed harsh environments? Will the touch screen have to stand up to dust, liquid, grease, or shock vibrations?
- Cost—What are your cost requirements?
Touch Screen Technologies Comparison (typical of touch screens integrated with the PPC series panel computers)
| Resistive | Capacitive | SAW | |
|---|---|---|---|
| Activation | Finger, gloved hand, or any stylus | Bare finger, capacitive stylus | Finger or sound absorbing stylus |
| Resolution | Controller touchpoint resolution is 4096 x 4096 | Controller touchpoint resolution is 4096 x 4096 | Controller touchpoint resolution is 4096 x 4096 |
| Light Transmission | 60% to 80% at 550nm wavelength | better (85%) | Up to 90% |
| Expected Life | Operationally tested for 35 million touches in one location without failure. | Tested to withstand over 160 million (mechanically simulated) touches without noticeable degradation. | No known wear-out mechanism. Operationally tested for 50 million touches in one location without failure. |
| Cost | least expensive | more expensive | most expensive |
| Surface Durability | 3H per ASTM D3363 | Anti-glare hardcoat cannot be scratched using any stylus with Mohs rating equal to or less than 6. | Surface durability is that of glass. |
| Chemical Resistance | Industrial chemicals: acetone, methylene chloride, methyl ethyl ketone,
isopropyl alcohol, hexane, turpentine, mineral spirits, unleaded gasoline,
diesel fuel, motor oil, transmission fluid, antifreeze. Food-service chemicals: vinegar, coffee, tea, grease, cooking oil, salt, plus most commercial cleaners including ammonia-based glass cleaner and laundry detergent. |
Water, ammonia, isopropyl alcohol, and similar non-abrasive cleaners. | The touch active area of the touchscreen is resistant to chemicals that do not affect glass, such as: acetone, toluene, methyl ethyl ketone, isopropyl alcohol, methyl alcohol, ethyl acetate, ammonia-based glass cleaners, gasoline, kerosene, vinegar. |
| Advantages | Stable, drift-free operation Broad input flexibility Contamination resistance Accuracy in high-use applications Long product life Meets NEMA 4/4x/12 and IP 65 standards |
Fast, sensitive touch
response with excellent
dragging performance Compatible with industry standard protocols |
Pure glass construction
delivers the ultimate in
image quality Stable, drift-free operation Continues to work even if scratched |
| Disavantages | Reduced optical clarity, Polyester surface can be damaged. |
Requires bare finger or capacitive stylus, Severe scratch can affect operation within the damaged area. |
Requires finger or sound absorbing stylus, Difficult to industrialize, Signal affected by surface liquids or other contaminants. |
| Sample Application | Point-of-sale (POS)
terminals Voting machines Industrial automation Medical equipment Office automation Retail automation Pharmacy automation |
Point-of-Sale terminals
(POS) Gaming/Amusement Kiosks |
Kiosks Ticketing machines Gaming machines Light industrial Office automation |
