The most common application of capacitive touch technology is in consumer electronics. The technology allows intuitive and direct interaction with the user interface without the need for physical buttons. The high sensitivity and multi-touch capabilities are essential to the modern user experience on these devices.
Detection is based on the conductive ability of the object touching the screen. The human body acts as a conductor that can absorb a small electrical charge from the screen. This fundamental principle causes the technology to respond to a finger but not to most inanimate, nonconductive objects.
The screen surface maintains a constant, uniform electrostatic field. Each touch by a conductive object, such as a finger, causes a local disturbance in this field. This disturbance is the trigger that the system uses to register a touch and determine its location.
Sensors under the screen layer measure the change in capacitance that occurs with a touch. By analyzing the sensor grid measurements, the controller can determine the exact coordinates of the touch with great precision, which is essential for functions such as typing and drawing.
An important feature is that the screen responds only to conductive materials. This prevents inadvertent touching by, for example, a sleeve of a garment or a plastic object. Special styluses for capacitive screens therefore contain a conductive tip to simulate the touch of a finger.
At Dytos, we understand that each industry has specific requirements for touch solutions. That's why we offer a wide range of products and services designed to meet these diverse needs.
Dutch Dutch 
English
