Surface Capacitive Touch Screen

This primitive capacitive touch screen was most reliable and accurate type until advent of Projected Capacitive touch screens (PCAP/PCT). These touch screens work by placing electrodes on all four corners of a conductively coated glass surface, which create a uniform electric field. When a touch is sensed, current is drawn from electrodes. The controller calculates touch point/location by measuring the current.

surface_capacitive

Particulars

Specifications

Thickness

1.45 ~ 3.0mm

Transmittance

≥ 86%

Operating Voltage

2.8V ~ 3.3 V

Hardness

Up to 6H

Operating Temp.

-20o to +70o C

Storage Temp.

-30o to +80o C

Humidity

95% RH
(non-condensing)

Typical Stack

Cover Glass + ITO Glass + FPC

Driver IC

FT5336GQQ or equivalent

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