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Multi-touch display
A joint project between Microsoft Research and Mitsubishi Electric Research Labs has resulted in a novel solution--touch screens on both the front and back of a mobile device that are used simultaneously. The user's thumbs touch the front screen while the other eight fingers touch the back on what's been termed the LucidTouch "see through" mobile device interface. To be precise, the device's screen is not actually transparent. Instead, a camera on a short boom attached to the prototype's back captures images of the user's hands touching the rear screen, and an image of the fingers--to enable the user to "see" where his or her fingers are touching--is displayed on the front screen as if the device were transparent.
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