Resistive

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Resistive Touch Drivers



Resistive touch is a pressure-sensitive screen technology using two flexible, conductive layers separated by spacers; when pressed, the layers touch, changing electrical resistance to register a touch point, allowing input from fingers, gloves, or styluses, making it durable and cost-effective for industrial/medical use but less clear and gesture-friendly than capacitive screens. 


How it works:

  • Layers: Two transparent sheets (often Indium Tin Oxide (ITO) coated) are stacked, with small insulating dots (spacers) between them.
  • Pressure: Applying pressure (with a finger, stylus, glove) deforms the top layer.
  • Contact: The top layer touches the bottom layer at the point of pressure, completing an electrical circuit.
  • Detection: The screen's controller measures the change in electrical resistance to determine the X and Y coordinates of the touch. 


Key characteristics:

  • Input: Works with any object (finger, glove, stylus, tool).
  • Durability: Good for rugged environments.
  • Cost: Generally lower cost.
  • Clarity: Poorer image clarity due to multiple layers.
  • Multi-touch: Does not support multi-touch gestures (pinch, zoom).
  • Applications: Industrial control, medical devices, POS systems, kiosks. 



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