The Construction of the Resistive type Touch Panel

The Construction of the Resistive type Touch Panel ITO Layer Dot spacer Insulating Glue ｝ ITO Glass Ag ｛ Adhesive ITO Film Rigid Substrate (Glass or PC) The sectional-chart of the Resistive type

4 -Wire Theory of Operation Input Voltage Point of touch y y x Vout x Point of touch Vout Input Voltage Reading X Position Reading Y Position The ITO layer of the film and Glass will be contacted with each other when the fingers touched screen, The uniform electric field will be formed in the direction of the X-axis after we imposed 5 V voltage to one conductive layer of the touch panel, So , the voltage of the another conductive layer will become into a none-zero from zero. After A/D , the controller will compared 5 V with the measured voltage, and calculate the position coordinates of the X-axis. Calculate the Y-axis with the same method.

The Construction of the Touch Window Construction One ICON Sheet OCA ITO Film Circuit Spacer ITO Film OCA Gasket (PC/PMMA) Back Adhesive Dot spacer Construction Two ICON Sheet OCA ITO Film Circuit Spacer ITO Film Back Adhesive Dot spacer

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