Resistive (4-, 5-, 7- and 8-wire)

Sensor Materials 

Glass or Acrylic substrate, Spacer dots, Polyester sheet(s)

Principle of Operation

  • A touch compresses the flexible Top layer into contact with the bottom glass layer.

  • A voltage gradient is applied to the top and bottom layer (X and Y axis) sequentially.

  • The controller calculates the X and Y position of the touch based on the voltage gradient applied to one side and using the opposite side as a voltage probe.

 

 

 

Pros and Cons

Pros

Cons

Most widely used touch technology

PET top sheet is highly susceptible to scratches, cuts and cigarette burns

Can be activated by bare finger, gloved hand, or stylus

PET layer is a flexing mechanical element coated with a conductive
Low cost Transmission typically in 80 % to 85 %
  Limited to 2 resolvable points; 3 or more resolvable points requires

© 3M 2010, All rights reserved.

Copyright 2018 Richardson Electronics, Ltd. All rights reserved. Canvys is a trademark of Richardson Electronics, Ltd.

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