9.7 Inch Touch Screen

In this basic technology, only one side of the insulator is coated with a conductive layer. A small

voltage is applied to the layer, resulting in a uniform electrostatic field. When a conductor, such as a

human finger, touches the uncoated surface, a capacitor is dynamically formed. The sensor\'s

controller can determine the location of the touch indirectly from the change in the capacitance as

measured from the four corners of the panel. As it has no moving parts, it is moderately durable but

has limited resolution, is prone to false signals from parasitic capacitive coupling, and needs

calibration during manufacture. It is therefore most often used in simple applications such as

industrial controls and kiosks.





In this basic technology, only one side of the insulator is coated with a conductive layer. A small

voltage is applied to the layer, resulting in a uniform electrostatic field. When a conductor, such as

a human finger, touches the uncoated surface, a capacitor is dynamically formed. The sensor\'s

controller can determine the location of the touch indirectly from the change in the capacitance as

measured from the four corners of the panel. As it has no moving parts, it is moderately durable

but has limited resolution, is prone to false signals from parasitic capacitive coupling, and needs

calibration during manufacture. It is therefore most often used in simple applications such as

industrial controls and kiosks.