ITO Touch Screen >> BACK LOCATION : HOME > PRODUCTS > ITO Touch Screen > 4 Wire Resistive Touch Screen

4 Wire Resistive Touch Screen

Specification

How it works

4-Wire resistive touch screen is the preferred solution for low cost applications. It consists of a conductive bottom layer (ITO Glass or Film) and a conductive top layer (ITO Film). The two layers are suspended by many very small spacer dots.When a certain point is touched, the top layer contacts the bottom layer and a voltage charged by the controller is applied to the bottom layer's electrodes. The coordinate X axis of the touch point can be detected by measuring the voltage value thru the top ITO layer and the coordinate Y axis of the touch point can be detected in the same way by changing voltage input to the top layer's electrodes.

Specification


Circuiting Rating: 5V DC, 35mA
Surface Hardness:    3H
Light Transmission
Film+Film>77%
Hitting Life Expectancy:   Over 1 million
Film+Glass>83%
Scoring Life Expectancy:  Over 100,000
Contact Bounce: <10ms
Operating Temperature:  -20 oC ~+70 oC
Resolution: 4096x4096
Storage Temperature:    -30 oC ~ +80 oC
Linearity: 1.5%?<1.0% By Request?
Choices of Glass Thickness:0.55mm, 0.7mm, 1.1mm, 2.0mm, 3.0mm
Operating Force: 10g~100g
Choices of Glass: Normal Glass, Chemically strengthened glass


highlight & Benifit


Input flexibilityfinger (with/without glove), stylus, pen, credit card.
FPC tail technology surpasses those of our competitors.
· FPC has lower resistance and is more flexible than PET or ITO film used by other suppliers.
Excellent optical performance even with anti-glare hard coating film.
· Capable of handling spacer dots diameter less then 0.035mm (smallest in the industry).
· Haze < 6% (best optical performance in the industry).
Various choices of surface treatments available.
· Anti-Newton ring, anti-glare, special chemical hard coating,anti-reflection.