What Are the Types of Resistive Touch Screens

1. Four-wire resistive touch screen.

When the four-wire resistive analog process of two transparent metal layers work, the constant voltage of each layer increases by 5 V: one vertical and one horizontal direction. A total of four cables are required.

Four-wire resistive touch screen features high resolution, fast transmission response. Surface hardness treatment to reduce scratches, scuffs and anti-corrosion treatment. Smooth surface with matte finish. One-time calibration, high stability, never drift.

2. Five-wire resistive touch screen.

Five-wire resistive touch screen base through a precision resistive network will be two directions of the voltage field added to the conductive working surface of the glass, we can simply understand that the two directions of the voltage field is working in the same working surface time-sharing, while the outer layer of nickel-gold conductive layer is used only as a pure conductor. The five-wire resistive touch screen requires four wires inside the ITO, the outer layer is only used as a conductor, resistive touch screen has five wires.

Five-wire resistive touch screen features high resolution, fast transmission response. High surface hardness, reducing scratches, scuffs and chemical resistance treatment. It can still contact with the same point 30 million times. Conductive glass is used as the medium of the substrate. One time correction, high stability, never drift.

3. Seven-wire resistive touch screen.

Seven-wire resistive touch screen is implemented in the same way as the five-wire resistive touch screen, only in the upper left corner and the lower right corner to add a line.

4. Eight-wire resistive touch screen.

In addition to the addition of a line on each bus, eight-wire resistive touch screen implementation method and four-wire resistive touch screen the same. For the VREF bus, one line is used to connect the VREF, and the other line is used as the positive reference input for the digital-to-analog converter of the SAR ADC. For the 0V bus, one line is used to connect to 0V and the other line is used as the negative reference input for the SAR ADC's digital-to-analog converter. Any of the four wires on the unbiased layer can be used to measure the voltage of the voltage divider.