Touch sensing for industrial designs extends moisture tolerance, hover performance

January 09, 2015 // By Graham Prophet
Atmel’s next-generation maXTouch U family is positioned as the first capacitive touchscreen solution to allow no compromise for designing new state-of-the-art displays. OEMs will no longer have to worry about touch and display performance when selecting thinner stacks such as on-cell, hybrid in-cell, or full in-cell touchscreens using very thin film and glass substrates.

The proliferation of smart devices along with the innovation in display technologies have put many new challenging requirements on touchscreen technology. The touchscreens not only have to operate with thin noisier displays, cheaper noisier chargers and numerous environmental noise sources, but also have to work with thick gloves in cold climates, moisture in humid environments and stylus for content creation.

Atmel says the maXTouch U architecture is designed from the ground-up to service these requirements, enabling the highest hover distance of 25 mm while cutting the touch power by 50%. This family provides full in-cell integration without requiring costly display synchronisation for the OEM, enabling the fastest touch response for users. maXTouch U series allows multi-finger operation with moisture on the screen and supports side-buttons for an easy-to-use user experience, especially in camera mode. The high signal-to-noise ratio (SNR) supports very thin 1mm passive and active stylus handwriting with full palm rejection.

“Competing touch solutions do not have the fundamental building blocks required to support the technical demands of thinner and flexible advanced displays,” added Binay Bajaj, Sr. Director of Touch Marketing, Atmel Corporation.