PlasmaDepot.com
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Plasma Depot: Plasma TV, LCD TV and DLP Rear Projection TV Screens
Description
The Technology Behind DLP Televisions
DLP is a fully digital projection technology found in big-screen TVs and front projectors. At the heart of every DLP display is a DLP chip, also known as a Digital Micromirror Device, or DMD chip. It was invented by a physicist at Texas Instruments in 1987.
Though small (less than an inch on a side), a DLP chip holds a rectangular array of hundreds of thousands of hinge-mounted microscopic mirrors (see photo, below). The gaps between mirrors are also tiny, allowing the mirror array to create images that are sharp and seamless.
A simplified view of a DLP light engine. A high-powered lamp (out of view, left) shines light through the segments of the spinning color wheel. The colored light strikes the DLP chip, creating the full-color image that is projected through the lens.
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