What are LCD, DLP & CRT projectors?
LCD Projector is a self-contained unit that combines one to three LCD panels and a light source for a complete computer and/or video projection device. Generally more convenient and efficient than using a separate LCD panel and overhead, LCD projectors come in a wide variety of sizes and specifications. DLP Projector processes light digitally using a microchip from Texas Instruments called the Digital Micromirror Device (DMDTM). The chip contains over 500,000 tiny mirrors, digitally controlled by an individual memory cell beneath it. Because light is reflected off the mirrors rather than transmitted through glass LCD panels, there is an increase in optical efficiency and brightness. CRT is an acronym for cathode-ray tube. It is most familiar to us as what we call a picture tube in our television sets. A standard television set uses one CRT with a special mask inside that allows for small dots or lines of the colors red, green and blue to make up a color image. A 3-tube or 3-CRT project
