iiiC Technology

Professional Solutions for Projects and Products!

  • Increase font size
  • Default font size
  • Decrease font size
Home Touch Screen Solutions Capacitive Touch Panel

Capacitive Touch Panel

E-mail Print PDF

Capacitive Touch Panel

Capacitive touch screen is a piece of 2 layer of compound glass with double side transparent conductive coating that conducts a continuous electrical current across the sensor.

There is electrode pattern printed along the edges distributes a low voltage field over the conductive layer.

The human body is also an electrical device which has stored electrons and therefore also exhibits capacitance.

When a finger touches the screen and draws a minute amount of current to the point of contact, creating a voltage drop.

The current flow from each corner is proportional to the distance to the touch point.

During a touch, capacitance forms between the finger and the sensor grid. The touch location is calculated from the changing electrical characteristics of the sensor grid.

Configuration

Last Updated on Saturday, 10 October 2009 18:53