A Resistive Touchscreen is one of the earliest and most widely used touchscreen technologies. It works by sensing physical pressure applied to the screen surface (from a finger, stylus, or any object).
How It Works
A resistive touchscreen is made of two transparent layers (usually glass or acrylic + flexible plastic) separated by a thin air gap or spacer dots.
Each layer has a transparent conductive coating (like indium tin oxide, ITO).
When you press the screen, the top flexible layer bends and touches the bottom layer.
This contact changes the electrical resistance at that point, allowing the controller to detect the exact coordinates (X, Y) of the touch.
Key Features
Input type: Works with fingers, stylus, gloves, or any object.
Accuracy: Good for precise tasks (stylus-driven interfaces, handwriting).
Cost: Generally cheaper than capacitive touchscreens.
Durability: Resistant to dust and liquid spills, but the flexible surface can scratch or wear out over time.
Advantages
Operable with any input tool (not limited to skin contact).
Affordable compared to capacitive touchscreens.
Accurate and reliable for single-touch applications.
Works in environments where users wear gloves (industrial, medical).
Disadvantages
Lower clarity: Two layers reduce light transmission (screen looks dimmer).
No multi-touch: Usually supports only one touch at a time.
Less durable: Surface film can scratch or degrade with heavy use.
Slower response compared to modern capacitive touchscreens.
Common Applications
ATMs and kiosks (older models).
Industrial controls.
Medical devices.
Point-of-sale (POS) terminals.
Handheld instruments and PDAs.
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Resistive Touchscreen product links for reference:https://www.eurotech-lcd.com/solutions.aspx?id=4340