Peripherals/Touch Screen
< Peripherals
Revision as of 00:16, 15 November 2007 by 68.0.226.163 (talk)
Technology
Different touch screen technologies:
- 4-Wire Resistive
- 5-Wire Resistive
- Capacitive
- Surface Acoustic Wave
- Infrared
- Strain Gauge technology
- A simple light sensor could also work as a display pointer. A tethered pen could detect flashed target boxes, like the old Nintendo Light Gun. For continuous drawing, the screen could flash through a series of patterns where the pen either sees light or dark. Each screen location would thus have a unique binary code flash through it, which would be reported by the pen's narrow light sensor. This screen scan will start in a small box near where the pen was last to reduce search time, and the eyesore of flickering.
Apparently most PDA’s use 4-Wire Resistive touch screen technology. However I am not positive on this.
