Exploring the Benefits of Touch Screen Self-Service Terminal Services
Projected-capacitive screen has an electrostatic field. A touch event occurs when a finger or conductive stylus interferes with the electric field projected above the surface.
Infrared touch screen responds to any object placed on the grid of infrared light beams. They cross each other in vertical and horizontal patterns. When any object enters the grid, the controller recognizes the exact location. It can operate from a finger (gloved), stylus or pen.