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Another Dimension to Touch Screens

• http://www.technologyreview.com/
 

A British company called Peratech has announced a new technology for touch screens that registers pressure as well as the position of a finger. This could provide new ways of interacting with apps for touch screen mobile phones and tablets.

In addition to adding pressure sensitivity to screens, the company claims that the technology, called Quantum Tunneling Composite (QTC) Clear, could make touch screens thinner, more rugged, and more energy-efficient.

Peratech aims to bridge the gap between the two main touch-screen technologies: capacitive and resistive, says joint CEO Philip Taysom. Capacitive touch screens are found in mobile phones and tablets. They respond quickly to multiple fingers at a time, but rely on a grid of electrodes that constantly draw power when a screen is switched on; the bigger the screen, the more power the capacitive sensors gobble up.

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