This is like those interactive projections in the malls. A projector (with DLP in it) projects an image on the floor or on the wall and kids can interact with the objects in the image. It is a great idea to apply this technology to touch screen. Good thinking. TI.
Old TVs don't need carrying, they just just go up in smoke :-)
Structured light is a good example of lateral-thinking to solving a difficult or insoluble problem (3D image analysis) simply by re-writing the problem (structuring the illumination). Can't do it for all cases, but there are markets for this partial solution.
AFAIK Mitsubishi is the only current maker of DLP TVs. Their drawback is that they're up to a foot thick. They have the advantage of having a wider color gamut than LCDs or plasmas. $1600 got me 65" of gorgeous 1080p. Try that with an LCD.
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