4-Wire Resistive touch
technology consists of a glass or acrylic panel that is coated with
electrically condictive and resistive layers. The thin layers are separated by invisible separator dots.
When operating, an electrical current moves through the screen.
When pressure is applied to the screen the layers are pressed
together, causing a change in the electrical current and a touch event
to be registered.
4-Wire Resistive type touch screens are generally the most affordable.
Although clarity is less than with other touch screen
types, resistive screens are very durable and can be used in a variety
of environments. This type of screen is recommended for individual, home, school, or office use, or less demanding
point-of-sale systems, restaurant systems, etc.
|
| Advantages |
Disadvantages |
- High touch resolution
- Pressure sensitive, works with any stylus
- Not affected by dirt, dust, water, or light
- Affordable touchscreen technology
|
- 75 % clarity
- Resistive layers can be damaged by a sharp object
- Less durable then 5-Wire Resistive technology
|
| Touchscreen Specifications |
| Touch Type: | 4-Wire Resistive |
| Screen Sizes: | 12"-20" Diagonal |
| Cable Interface: | PC Serial/COM Port or USB Port |
| Touch Resolution: | 1024 x 1024 |
| Response Time: | 10 ms. maximum |
| Activation Force: | 50-120 grams per square centimer |
| Positional Accuracy: | 3mm maximum error |
| Light Transmission: | 80% nominal |
| Light Transmission: | 80% nominal |
| Scratch Resistance: | 3H pencil hardness |
| Life Expectancy: | 3 million touches at one point |
| Temperature: | Operating: -10°C to 70°C Storage: -30°C to 85°C |
| Humidity: | Pass 40 degrees C, 95% RH for 96 hours. |
| Chemical Resistance: | Alcohol, acetone, grease, and general household detergent |
| Software Drivers: | Windows XP / 2000 / NT / ME / 98 / 95, Linux, Macintosh OS
|
|
|