This story is from the category Sensors
Date posted: 11/10/2007
A touch-sensitive gadget with the sensing panel on its back, instead of the screen, is being developed by US researchers. Using your fingers behind the device allows a firmer grip and more accurate performance without obscuring your view of the screen, they say.
Daniel Wigdor of Mitsubishi Electric Research Labs (MERL) and the University of Toronto, Canada said "As soon as you put your hands on the display you [obstruct] the screen.
"Users of iPhones have other problems too. Multi-touch devices detect the entirety of the touch area, that's what we call the 'fat finger' problem."
Wigdor,working with Patrick Baudisch at Microsoft Research have come up with asolution: a device that can be held comfortably in two hands, with a large touch-sensitive LCD screen, and a mirror copy of that interface on its rear surface.
When using the rear touch interface, the user's fingers appear as shadows on the screen, giving the illusion they are holding a transparent device.
"We're trying to address the problem of occlusion by giving the user an idea of their input, while still being able to see through the hands to the screen," Wigdor says.
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