Screen display technology extends LCD devices by capturing gesture information and could one day replace Webcams.

A thin, bidirectional screen technology with the potential for future use in cell phones has been unveiled in prototype form by MIT Media Lab researchers. The solution is called BiDi Screen display.

Described as a "lenseless camera" the BiDi Screen extends LCD devices while enabling the screen to both capture images and display them. The prototype was displayed over the weekend at a unit meeting of the Special Interest Group on Computer Graphics and Interactive Techniques (Siggraph) in Japan.

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