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Touch Solutions

IR Touch (Scattering) Technology
  • Existing IR Matrix Technology
    Infrared light emitted from an LED is received by a sensor on the opposite side (1:1), and the presence or absence of a touch object is determined by the amount of received light.

    A single faulty LED or sensor causes a malfunction.

    Excessive amounts of foreign substances such as dust cause a malfunction.

    A malfunction also occurs when the surface is touched by more than one object.

  • AFO’s IR Scattering
    The infrared light emitted from an LED is received by dozens of sensors (1:32), and the number of touch objects and area are calculated by using the received data.

    Faulty LEDs and sensors and foreign substances do not cause malfunctions

    Palm rejection and specific object rejection features are provided.

Touch Types
  • Infrared Scattering (AFO)

    FeaturesThe touch process uses infrared light from hundreds of LEDs (1:32).

    ApplicationDIDs, e-boards and ATMs

    AdvantageMulti-touch, low-cost large panels (when used) and durability

    DisadvantageDesign restrictions and sensitivity to disturbance light

  • Infrared Matrix

    FeaturesInfrared light emitted from an LED is received by a sensor on the opposite side (1:1).

    ApplicationDIDs, e-boards and ATMs

    AdvantageLow cost

    DisadvantageA faulty LED or sensor causes a malfunction. 1 point

  • Camera

    FeaturesThe touch process is made by using two or more cameras.

    ApplicationLarge-scaled DID products

    AdvantageCheaper than capacitive touch products and suitable for large-scaled products

    DisadvantageDifficult to design and difficult to implement multi-touch, and early touch

  • Capacitive

    FeaturesThe touch process uses the static electricity of a human hand

    ApplicationModern smartphones

    AdvantageDurability, multi-touch and transparency

    DisadvantageRecognizes only human fingers and capacitive pens, expensive, and sensitive to noise

 
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