3M Touch Technology Briefs provide a comparative overview of popular touchscreen technologies, which includes How It Works descriptions and diagrams, touchscreen construction details, relative features and benefits, and product specification comparisons.
Projected Capacitive (U.S. size) | (A4 size) (PDF 3.0 MB)
Resistive and Surface Capacitive (U.S. size) | (A4 size) (PDF 1.15 MB)
Optical, Surface Acoustic Wave, and Bending Wave (U.S. size) | (A4 size) (PDF 720 kB)
Choosing High Performance Multi-Touch Display (narrated presentation)(13:41 minutes)