Capacitive Multi Touch Panel For Game Machine

Capacitive Touch Screen:

Capacitive touch screen are built with two parallel layers of ITO but, but unlike the old and cheap resistive touch panels, the ITO layers in a projected capacitive touch panel are sealed between two sheets of glass by an optically clear adhesive.

Structure & Operating Principle:

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 filed 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.

 
Projected Capacitive touch screen Features:
 
►Response speed fast, smooth touch.

►Any point can withstand more than 50 million times touch.

► Operating systems strong compatibility.

► Intelligent automatic calibration, use forinternal / external variety of environments.

► Long life, low maintenance costs.