Capacitive Touch Panels
What is Capacitive Touch Panel?
How Capacitive Touch Panels Work?
Capacitive touch screens are much different than resistive touch screens in the way that they function. These screens are coated with those stores electrical charges. The coating is typically indium tin oxide, which allows the capacitive touch panels to continuality carry an electrical charge.
When the panel is touched, a charge is created and that specific information is sent to be processed. Unlike its resistive counterpart, capacitive touch screens must be touched by a human finger or some sort of conductive device being held by a human hand.
Specification of Touch Screen:
|Electrical||Maximum Circuit Rating||5V DC, 35mA|
|Insulation Resistance||Maxtrix 20MΩ or more at 50V DC|
|Analog 20MΩ or more at 25V DC|
|Dielectric Withstand||250V Rms (50-60Hz 1min)|
|Contact Bounce||30ms or less|
|Mechanical||Actuation Force||10g to 100g|
|Linearity||1.5% or less|
|Life Expectancy||35,000,000 touches|
|Surface Hardness||3H or more|
|Glass Thickness||0.7mm, 1.1mm, 2.0mm, 3.0mm|
|Environmental||Operation Temperature||-10°C to + 60 °C|
|Storage Temperature||-20°C to + 70 °C|
|Humidity||40°C , 90% to 95% for 240 hours|
|Optical||Transparency||≥80% ± 2%|
|Structure||Film to Glass|