28 Feb '12, 7pm

Single-layer multi-touch touchscreens are getting thinner, smarter, cheaper. Physical knobs/switches = dinosaurs.

Smart phones and tablets, with their infinitely customizable multi-touch screens, have trained consumers to expect the same degree of versatility in all devices, from cars to refrigerators to medical electronics. Atmel’s maxTouch line of touchscreen controllers already supports consumer and industrial applications; the company has now added the mXT768E and mXT540E automotive-qualified controllers for 5″ to 10″ touchscreens and touchpads used in center stack displays, navigation systems, radio human-machine interfaces (HMIs) and rear-seat entertainment systems. Conventional controllers for capacitive touch screens require a shield layer within the multi-layer touchscreen to prevent noise-coupling from the LCD. These two new automotive-qualified maXTouch devices offer a signal-to-noise ratio (SNR) of 80:1, eliminating the need for shields and enabling a single-layer sensor d...

Full article: http://www.edn.com/blog/PowerSource/41645-Atmel_and_Cypre...

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