In order to understand how it works, you have to look at the structure first: in front of a TFT display there is a glass plate that is coated with a conductive material. In front of it there are tiny spacers who create a space between a further conductive coating and the inner conductive layer. The external conductive coating is protected by a scratch -resistant cover. With the help of a control unit, a voltage gradient is generated in the inner conductive layer in the X direction. In the external conductive layer, a voltage gradient is built up in the y direction. If the two conductive layers are pressed together by strong touch, the control electronics determine the coordinates. Conclusion: You can see a touchscreen in such a way if it were a simple mouse. However, you can also use t.
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