The foundation of Microsoft's interactive display is a transparent 3D OLED supplied by Samsung. Other than traditional Kinect interactions, however, the display creates a 3D scenario behind the screen. The user reaches to the back of the screen to interact with the shown objects. This may not be the most convenient 3D technology and reminiscent of an environment similar to a biology research lab, but it is the most impressive demonstration of a transparent OLED we have seen to date.
To achieve a naked eye 3D effect, the technology directs the light emitted by the two stereo images to the user's left and right eye. Microsoft integrated eye-tracking to compensate for head movements and keeps the 3D effect alive even if the user slightly changes her or his location. There were few technical details, but the demo video shows that the display cannot quite achieve complete transparency and it appears that this technology works only with high contrast objects.