Breakthrough Touch Sensing Tech Offers Wide Ranging Benefits

November 16, 2020 Off By Naveen Victor

Credit: SigmaSense

Touch sensing technology serves a variety of applications. They are most useful in areas or fields that require quick and repeated interactions between us and an electronic interface. Heraeus, a leader in polymer material innovations, and SigmaSense, an expert in touch sensing performance, have collaborated to create a fully functional 65-ich PEDOT polymer touch sensor.

This breakthrough is supposed to be game-changing stuff that will pave the way for more affordable interactive displays of various sizes. The tech is based upon Clevios, a flexible and robust conductive PEDOT polymer. It’s a part of SigmaSense’s current-mode sensing technology which supports super high resistance sensors at ultra-low voltages.

Clevios PEDOT:PSS is formulated and coated via roll-to-roll process. It is then structured by laser patterning, processed, and assembled. The sensor is then laminated onto a flat panel display incorporating SigmaSense’s touch controller. The coatings do not add haze to the films, even under off-angle viewing.

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It has a similar refractory index to that of plastic or glass substrates, which allows for ultra-low light refractions that facilitate invisible patterning by lasers. PEDOT:PSS has mechanical flexibility that is ideal for a range of narrow bezel and flexible computing applications. It eliminates costly crack-yield losses due to bending or flexing the films.

SigmaSense’s analog to digital converter (ADC) technology brings this new innovation to life. When applied to touch sensing, a hundred to over a thousand times better signal-to-noise is achieved compared to existing solutions. This allows for multiple input on these touch surfaces, simultaneously, which provides endless possibilities including gaming applications.