Projected‐Capacitive Touch Systems from the Controller Point of View
Tim Wang, T. Keith Blankenship · Information Display · 2011
Projected‐capacitive touch has grown more than 100‐fold in revenue since the iPhone was introduced in 2007, and it shows no signs of slowing down. This article describes many of the design and application challenges that must be faced when integrating projected‐capacitive touch into a device, with a particular focus on the importance of the controller's signal‐to‐noise ratio.