Resitive Touch Panels
Resistive touch screens are generally divided into 2 types. The 4 & 5-wire touch screens are known as Analog resistive touch screens. And the Matrix is what is known as Digital resistive touch screen. Each type offers a wide variety of sizes as standard product, and of course, Elcom Design can make custom models as per customer¡¦s requirement.
The structure basically consist of two layers . The top layer which is typically PET film, hard coated on the non-conductive side to prevent scratches. And the bottom layer that can be made from PET film or Glass. Then the conductive sides of the top and bottom layers are coated with ITO (Indium Tin Oxide) for superior electrical conductivity and optical transparency. These layers are separated by printed, transparent, non-conductive dots to provide the spacing. When touched, the two conductive layers come into contact and then the controller will determine the coordination by calculating the voltage at the touch point.
Resitive Touch Screen Tail Types :
Specification of Touch Screen:
Electrical |
Maximum Circuit Rating |
5V DC, 35mA |
Insulation Resistance |
Maxtrix 20MΩ or more at 50V DC |
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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 |
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