Chinese electronics giant Lenovo has unveiled a phone with a built-in laser projector that can be used to display a virtual keyboard or display.
The interactive display can replicate the phone's touch screen, a full-size computer keyboard or even piano keys.The laser projector can also be used to beam images and videos onto walls.
A kickstand mounted on the back of the phone keeps the device upright while the virtual keyboard is in use.Lenovo suggests that its Smart Cast phones' projected images could be used to play music and games
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