Resistance contact is divided into four-wire resistance and five-wire resistance contact, the simple difference is four wires and five wires in the functional area.
The two-layer transparent metal layer of the four-wire resistance analogue technology is operated with a constant voltage of 5 V per layer: one vertically and one horizontally, for a total of four cables.
Features and advantages: high-resolution, high-speed transmission reaction. Surface hardness treatment to reduce abrasions, scratches and chemical resistance. It has a smooth and matte finish. One proofreading, high stability, never drifting.
The bottom layer of the five-wire resistance technology contact screen adds the voltage field in both directions to the conductive working surface of the glass through the fine resistance network, which can be simply understood as the time-sharing operation of the voltage field in both directions is added to the same working surface, and the outer nickel-gold conductive layer is only used as a pure conductor. The inner ITO of the five-wire resistive contact screen needs four leads, and the outer layer is only a conductor, and there are five lead wires for the contact screen.
Features and advantages: high resolution, high-speed transmission reaction. High surface hardness, reduce abrasions, scratches and chemical resistance. 30 million times of contact at the same point can still be used. Conductive glass is the medium of the base material. One proofreading, high stability, never drifting. Five-wire resistive contact screens have defects of high price point and high environmental requirements.
Deficiencies of resistance contact: whether it is a four-wire resistance contact screen or a five-wire resistance contact screen, they are a kind of working environment that is completely blocked from the outside world, not afraid of dust and water vapor, it can be used to contact with any object, can be used to write and paint, and is more suitable for the use of industrial control and limited people in the office. The common defect of the resistive contact screen is that the outer layer of the composite film is made of plastic material, and people who do not know it may scratch the entire contact screen if they use too much force or use a sharp instrument to contact it, resulting in invalidation. However, within the limit, the scratch will only injure the outer conductive layer, and the scratch of the outer conductive layer is not relevant for the five-wire resistive contact screen, but for the four-wire resistive contact screen, it is fatal.
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Imprecise screen orientation: can be positioned from scratch by the driver software.
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