What is a DLP Projector?
A self-contained projector alternative to LCD technology using Texas Instruments DLP technology. DLP (Digital Light Processing) typcially uses a single self-contained digital display chip, actually called a Digital Micromirror Device (DMD). The device contains millions of microscopic tilting mirrors that are tilted to either reflect light, or not, depending on the video signal. This complex, but ingenious device, actually only produces images in black and white, but a high speed rotating color wheel is introduced into the light path to transform the image into color. In contrast to LCD, the light does not pass through the DMD device, it is reflected by all these tiny mirrors. DLP projectors offer the same advantages over CRT as does LCD projection, while allowing lower power lamps to provide brighter, higher contrast images, but also introduces a mechanical device, the color wheel motor.
A Digital Light Processing (DLP) projector is a revolutionary technology that uses an optical semiconductor to digitally manipulate light. It incorporates a reliable, all-digital display chip that delivers the very best picture quality available. A DLP projector system can be used in a variety of products, including projectors used for business or home entertainment, large screen digital televisions and digital cinema. The basis of the DLP projector system is the optical semiconductor known as the Digital Micromirror Device (DMD) chip. Dr. Larry Hornbeck invented the DMD chip in 1987 while working for Texas Instruments. In basic terms, the chip is the world’s most sophisticated light switch. It contains a rectangular display of around two million hinge-mounted microscopic mirrors, each measuring less than one-fifth the thickness of a human hair. Once the chip is coordinated with a light source, a projection lens and a digital video or graphic signal, the mirrors reflect a digital image
A self-contained projector alternative to LCD technology using Texas Instruments DLP™ technology. DLP (Digital Light Processing™) typcially uses a single self-contained digital display chip, actually called a Digital Micromirror Device (DMD). The device contains millions of microscopic tilting mirrors that are tilted to either reflect light, or not, depending on the video signal. This complex, but ingenious device, actually only produces images in black and white, but a high speed rotating color wheel is introduced into the light path to transform the image into color. In contrast to LCD, the light does not pass through the DMD device, it is reflected by all these tiny mirrors. DLP projectors offer the same advantages over CRT as does LCD projection, while allowing lower power lamps to provide brighter, higher contrast images, but also introduces a mechanical device, the color wheel motor.
