General features of
4-Wire-Resistive Touch-Panels
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ITO touch-screens are an interactive input device integrated onto
electronic displays. The touch screen consists of two conductive
layers. The top layer is ITO film while the bottom layer can be either
ITO film or ITO glass. The top layer is suspended by very small
spacer dots. When the operator touches the touch panel, the
conductive inner surface of the ITO film makes contact with the
conductive coating on the top surface of ITO film (or ITO glass). The
coordinate X axis of the touch point can be detected by measuring the
voltage value though the top ITO layers electrode. Y axis work similar
way. Then an external controller senses the touch panel and passes
the information to the corresponded IC. |
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4-Wire-Resistive Touch-Panels are generally available in different
sizes (1,9”…21”) |
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4-Wire-Resistive Touch-Panels are the most preferred solution for
low cost and medium cost industrial applications. |
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…Please test us - we would like to support you! |
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