The Chinese Solar Machine Layer by Layer Fire in the Library The Mystery Behind Anesthesia
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Building blocks: A top layer of acrylic has shapes corresponding to different buttons cut out of it. A passage into an air chamber below allows air to flow in and out.
Chris Harrison, Scott Hudson
Because the system is pressurized, the pressure information can itself be used as an input, Harrison says. For example, if the screen were used to control an MP3 player, a person could press a button harder to scan through radio stations or songs faster. While many touch-screen displays can also register different levels of pressure, the glass or rigid plastic used doesn't provide any tactile feedback.
Rob Miller, a professor of electrical engineering and computer science at MIT, says that this type of interface is particularly likely to find its way into car dashboards. "When you're driving a car, you're situationally impaired," he says. "Your eyes need to be on the road, not hunting for the right button and watching whether you pressed it right."
In a small user study involving the Carnegie Mellon display, testers found the pneumatic buttons as easy to use as static ones while taking a simulated driving test. They also glanced at the pneumatic buttons only as often as they glanced at the physical buttons.
Due to its pneumatic nature, the system is currently fairly large, but Harrison says that he is trying to find ways to shrink it. "You can't get a pump inside a cell phone," he says, "but one possibility is to have a balloon and squeeze it using a conventional motor."
This is not scalable or practical. The article seems to suggest that it's not even transparent; rather, they're projecting the information onto the surface features. Lastly, this isn't even an original idea, Nokia has done a MUCH better implementation of this principal using microfluidics. Here is a link:
http://www.mydigitallife.info/2007/11/07/nokia-introduces-haptikos-touch-feedback-technology/
Clearly, having a tactile touchscreen would be a huge improvement to touch screens, this particular approach will little to no usefulness.
To use someting similar a PIN ART (See http://www.gadgetshop.com/media/gadgetshop/products/ProductGalleryImage1/276402.jpg), but no such complicated is the better way by me. The linear muvenent of pins could be limited of 4 - 10 steps, and they could be made of glass, or other optical coductive material, covered with transparent silicon diaphragm. The link pixel - pin could be realize trough fiber optics. As the result i see one huge, low ressolution, but tactile display
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Iphone is going old faster than I thought. Really cool.
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