Touch and go

Authors :: Berardinis, Lawrence A.
Source :: Machine Design. April 9, 1993, Vol. 65 Issue 7, p48, 5 p.
Publication Year :: 1993
Abstract: The uses and the technology involved in touchscreens are discussed. A touchscreen consist of a glass substrate, resistive metal layer and a conductive plastic film. When light pressure is applied on the screen, current flows and voltage is generated at the contact point. There are over 1,200 patents for different types of touchscreens such as resistive-analog, capacitive, surface-acoustic-wave, piezoelectric and infrared touchscreens.<br />Looking for the perfect input device? Touchscreens put computers at your fingertips. A touchscreen is one of the most intuitive input devices: just touch the screen to select what you [...]