Integrating the sensor – Zytronic ZXY110 User Manual

Page 10

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Integration Manual - Issue 1

Zytronic Projected Capacitive ZXY100/110

®

Touch Controller & Sensor

10

INTEGRATING THE SENSOR

To integrate the sensor, you will require a suitably sized LCD with a display area close to the active area
of the sensor, as shown in Figure 5 (the active area of the sensor can be found on the corresponding
Zytronic sensor drawing). Where possible, it is advisable to have the active area of the sensor 2-3 mm
oversized on all four edges in relation to the LCD display area. This will allow for some misalignment
during integration.

SUITABLE LCD TO MOUNT THE SENSOR TO

Foam gasket should be used around the perimeter of the LCD to provide an air gap between the LCD
face and the rear of the sensor, as shown in Figure 6. This air gap is necessary to prevent excessive
electrical noise from the LCD causing interference to the sensor.

Guidelines for the required thickness of the gasket can be seen in the table below and are sufficient for
most LCDs. Some LCDs with very high levels of noise may require greater spacing which would need to
be determined by testing.

SENSOR SIZE

5 - 22”

22 - 32”

32 - 46”

46 - 65”

65 - 84”

GASKET THICKNESS

3mm

4mm

6mm

8mm

10mm

FIGURE 5

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