Even today, Texas Instruments remains the primary manufacturer of this technology. Many different manufacturers license the technology from Texas Instruments, and build their products around the TI chipset. In addition to its use in televisions and projectors, DLP technology is used in a number of specialized applications such as lithography and imaging.
DLP technology differs from other video technology in that it utilizes a small digital micromirror device (DMD) to tilt more than 1.3 million of these tiny mirrors, each of them smaller than the width of a human hair either toward or away from the light source contained within the DLP device. This process creates the dark and light pixels which appear on the projection screen.
The light is then filtered through a color wheel rotating at 120 times per second, to produce a technology that is capable of producing some 1024 different shades of gray. It is this gradation of color that really makes DLP technology stand out, and these gradations of color are achieved using color filters which are backlit using just the right intensity of pure white light.
There are four major components to the DLP system:...
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