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THE TOUCHSCREEN REVOLUTION (Resistive Systems (Characteristics and…
THE TOUCHSCREEN REVOLUTION
Optical Imaging
Advantages
More robust and cheaper
No light-absorbing
More accurate and brighter
Designed for multi-touch
Characteristics and functioning
Touches, swipes, gestures
Backlights --> sensors --> infrared lights
2 optical sensors (opposite corners)
Resistive Systems
Characteristics and functioning
Metallic conductive layers
Touch --> 2 layers --> contact --> electric field exchange
Glass panel
Advantages
perfect coordinates calculation
Disadvantages
Less accurate
No multi-touch
Capacitive Systems
Advantages
More accurate
Designed for multi-touch
Disadvantages
No gloves
Characteristics and functioning
Conductive capacitive layer
Touch --> charge --> capacitive layer
Glass display