How touch screens work

Resistive touch screens detect touched points by measuring voltage changes. It is easy to use and features reliable operability. Operation with gloves or by pen are possible. Resistive touch screens features the most stable operation among the touch screen technologies. It’s performance has been proven over years of use in the market. Single-touch, multi-touch and slider options are available.

Capacitive touch screens detect touched points with capacitance couplings generated by touches. It is excellent for operational smoothness, visual clarity, toughness and weatherability. Multi-touch operation is possible with reasonably light touch pressure.

Applications for touch screens include industrial control, medical equipment, mobile devices, education and transportation.

Resistive Screen:

  • Electrical: 5V DC, 35mA

  • Transmittance: Film + Glass > 78%

    High Transmittance: F+G>83%
    Overlay+Film+Film+Glass>76%

  • Reaction Time: <10ms

  • Linearity: <1.5%

  • Operation Force: 20g ~150g

  • Surface Hardness: 3H

  • Operation Expectance: >100M

    (5 Wire: > 1000M)
    Sliding Expectance: > 10M
    (5 Wire : >100M)

  • Operation Temperature: -30oC ~ +80oC

  • Storage Temperature: -40oC ~ +85oC

  • Glass Thickness: 0.55mm, 0.7mm, 1.1mm, 1.8mm, 3.0mm

  • Glass Type: Regular and Tempered, Anti-Reflection, Polarized

Capacitive Screen

  • Operating Voltage 3.3V (can adjust based on customer requirements)

  • Surface Hardness: 3H-6H

  • Storage Temperature: -30oC~90oC <60%RH

  • Transmittance >86%

  • Surface Treatment: Anti-fingerprint, IOPP

  • TP Connection of the IC: COF or COB

  • Anti-jamming Capability (Machine): Contact Discharge>8KV Air Discharge >15KV

  • Working Current: 2.5mA-10mA depending on the IC

  • Interface Type: 12C, USB

  • Operation Temperature: -30oC~90oC <60%RH

  • Operation Force: 20g

  • Glass Thickness: 0.7mm, 1.1mm, 2mm

  • Operation Expectance: >1

  • Contacts: Supports up to 10 months