Texture on Smooth Touch Screens
Some cool technology from Disney researchers in Pittsburgh that can create the sensation of texture and three-dimensional surfaces. on a smooth touch screen. By regulating a flow of voltage to the surface of smooth touch screen, it can represent an artificial texture applied to an image,
or elevation data extracted from topographical maps.
It's an illusion, but a good one. "Our brain perceives the 3D bump on a surface mostly from information that it receives via skin stretching," said Ivan Poupyrev, who directs Disney Research, Pittsburgh's Interaction Group. "Therefore, if we can artificially stretch skin on a finger as it slides on the touch screen, the brain will be fooled into thinking an actual physical bump is on a touch screen even though the touch surface is completely smooth," he said.
Source: http://www.pbs.org
or elevation data extracted from topographical maps.
It's an illusion, but a good one. "Our brain perceives the 3D bump on a surface mostly from information that it receives via skin stretching," said Ivan Poupyrev, who directs Disney Research, Pittsburgh's Interaction Group. "Therefore, if we can artificially stretch skin on a finger as it slides on the touch screen, the brain will be fooled into thinking an actual physical bump is on a touch screen even though the touch surface is completely smooth," he said.
Source: http://www.pbs.org
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