Properties of Touchscreens

Properties of Touchscreens

Touchscreens

Resistive

Benefits

  • Touch in various ways: bare, gloved, stylus
  • Cheaper

Drawbacks

  • Poor visibility in strong sunlight
  • Not durable, not hard, could have scratches and wear out
  • No multi-touch

Infrared

Optical

  • Benefits
    • Hard to break
    • Multi Touch
    • Visible in strong sunlight
  • Drawbacks
    • Expensive
    • Only allow bare fingers (other things do not have enough heat)

Heat

  • Benefits
    • Visible in strong sunlight
    • Can be sensed in various ways: bare, gloved, stylus
    • Multi Touch
  • Drawbacks
    • Expensive

Capacitive

Benefits

  • Good visibility in strong light
  • Multi-touch
  • Durable, hard to break
  • Medium cost

Drawbacks

  • Only allow bare fingers to touch

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