Multi-touch capacitive touch detection and analysis of up to 40 contact points

February 11, 2014 // By Graham Prophet
From distributors MSC, Zytronics’ Multi-Touch Projected Capacitive Technology (MPCT) permits up to 40 independent contact points to be analysed simultaneously on displays of up to 216 cm (85 in.).

This multi-touch technology, developed by Zytronic, is based on the ZXY200 and forthcoming ZXY300 touch controllers and a robust scalable touch sensor. It uses a matrix of copper electrodes of 10 µm in diameter which are located in impact and scratch-proof glass laminate of several millimetre thickness. A palm rejection function differentiates between deliberate and erroneous contact with the touch panel. The sensor even works when wet, dirty or touched with gloves, which considerably extends the application area of this professional solution.

Customer-specific versions will also be provided in addition to the 38.1 cm (15 in.), 55.9 cm (22 in.), 81.3 cm (32 in.), 116.8 cm (46 in.), 139.7 cm (55 in.) and 208.3 cm (82 in.) standard solutions which are currently available. With Zytronics’ proprietary process for applying the copper electrodes, allowing simple scaling of the multi-touch sensor solution, in many cases there will be no additional NRE costs for non-standard designs. Users can also access the controller firmware and adjust the sensitivity to precisely adjust the sensor to the requirements of the system design.

The robust multi-touch solution is ready for immediate use with Microsoft‘s Windows 7 /Windows 8 operating systems plus Linux kernels 3.5.1 (10 touches) and 3.9.0 (40 touches).

MSC Technologies (Avnet Group);