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Matrix Touch Screen


Matrix Touch Screen Working Principle:
Its working principle is similar with 4-Wire Touch Screen. The ITO coating forms rows on one layer and columns on the other layer. The two layers are separated by printed very small transparent insulation spacers (<1/1000 inch). When screen is touched, both conductive layers of the top film and bottom glass make an electrical contact very similar to a switch.
Technical Specifications

Description

Item

Specification

Input

Finger, Gloved Finger, Stylus

Material

ITO Glass Thickness

0.7, 1.1, 1.8,2.0, 3.0mm

ITO Film Thickness

0.188mm

Operation and Storage Temperature

Operation Temperature

-10C ~ 60C

Storage Temperature

-20C ~ 70C

Electrical

Operating Voltage

5V

Operating Current

5mA ~ 25mA

Insulation Impedance

>20M (DC25V)

Resolution

4096*4096

Mechanical

Operating Force

15-70g

Surface Hardness

0-3H

Life

> 1,000,000

Optical

Light Transmission

>80%

 

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