Touch Screen with Buttons You Can Feel

Category: Monitors
Posted: April 29, 2009 01:02PM
Author: redtigerdragon

Researchers at Carnegie Mellon University have developed the first touch screen with actual tactile buttons. The display looks and acts like a normal touch screen, but can produce the buttons for certain purposes. The screens are composed of an acrylic plate with shaped holes covered in semi transparent latex. This is then connected to an air pump. When off, the screen is just like any other touch screen, but when activated, the latex concaves or convexes to form buttons. To light the screen and make it multi-touch compatible, it uses a projector to show images, and a camera to detect infrared light scattered by fingers on the surface.

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