I have used the display, and that is exactly what you can do.
They can build them to any real depth.. the one I have used is set at about 25mm depth (about an inch for those of you still stuck in imperial units) but they can be manufactured up to 150mm or more.
Some confusion reigns here about how these actually work too.. they do NOT use autostereoscopic principles (Sharp's and Philip's 3D displays do). You get just TWO DISCRETE depths. They are NOT really useful for content with a continuously variable z dimension. But they are very useful for overlaying data on top of a conventional 2D display - a bit like a heads up display.
The displays aren't perfect - they are a bit thicker than conventional LCD's, generate a bit more heat, and the rear display is the tiniest bit fuzzy because it is being viewed through another LCD.
Apart from those limitations, they're very cool displays.
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I have used the display, and that is exactly what you can do. They can build them to any real depth.. the one I have used is set at about 25mm depth (about an inch for those of you still stuck in imperial units) but they can be manufactured up to 150mm or more. Some confusion reigns here about how these actually work too.. they do NOT use autostereoscopic principles (Sharp's and Philip's 3D displays do). You get just TWO DISCRETE depths. They are NOT really useful for content with a continuously variable z dimension. But they are very useful for overlaying data on top of a conventional 2D display - a bit like a heads up display. The displays aren't perfect - they are a bit thicker than conventional LCD's, generate a bit more heat, and the rear display is the tiniest bit fuzzy because it is being viewed through another LCD. Apart from those limitations, they're very cool displays.