The touchpanel is constructed of a glass substrate (up to 2mm thickness) and a front polyester membrane separated by microdots. An ITO layer on both surfaces provide a transparent yet conductive surface, connections to each layer being oriented in X and Y planes. Applying pressure to the front of the touchpanel causes contact between front and rear layers, by using a potential divider technique the position of the touch can be resolved. The touch controller converts the analog signal into 8 to 12 bits of digital output for each axis.
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Options
toughened glass (2mm)
Higher transmission (92%)
Pen Input
All panels have AR coating as standard to minimise reflections.

4 Wire touchpanels are low cost, and offer an ideal solution for smaller display use.
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7 Wire touchpanels provide better accuracy and higher reliability. These are suited to larger displays and applications where high stability is required.
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Touch Controllers are available for both 4 and 7 wire touchpanels, with RS232 or USB Interfaces. Drivers for windows based O/S allow the touchpanel to emulate a mouse.

Contact us for details on touch controllers & evaluation kits.

For touch input systems we offer a complete integration service with all our display technologies.