Structure and Detection Mechanism of
The basic structure is the same as the resistive single touch type. It is a two-layer structure, two materials (film or glass) with ITO are attached with a gap between them so that the ITO layers are facing each other.
Touch input will be made as the top layer is pressed down and the two ITO layers contact.
There are insulators called spacing dots between the top and bottom ITO layers. These spacing dots prevent unintended contacts (inputs) of the ITO layers when not pressed.
The detection principle of MTR is basically same as the 4wire resistive touch screen, but the detection area is divided into a matrix. Each cell independently works as a "small single-touch resistive touch screen" so that multi-touch function is made possible as a whole.
The above example indicates that a touch screen is formed with 180 cells.