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Digital Light Processing (DLP) is a technology used in projectors and video projectors One application is DLP front projectors (small standalone projection units). DLP, along with LCD and LCoS are the current display technologies behind rear-projection television, having supplanted CRT projectors.
The DLP Projector
is a front projector that uses the same DLP technology used in the DLP TV (which is a rear projector). In DLP projectors, a powerful lamp passes light through the color wheel and reflects off the DLP projector's DMD chip. Expensive models use a three-chip configuration for better contrast cohesion, especially during motion. The DLP projector, like all front projectors, must be positioned behind or above the viewing with an unobstructed ray to a screen in front.
The DLP projector is fixed pixel display so it has a finite number of pixels which is measured as resolution.
Pluses
- DLP projectors are lightweight and portable.
- Fixed pixel display is sharp and high-contrast.
- The display area of a DLP projector can span from 40" to 250".
Minuses
- DLP projector requires a dark room for optimal display.
- DLP projectors are cost prohibitive to the average consumer.
- Cooling fan overhead of viewing area could be distracting.
Motion artifacts that appear as noise around high contrast images moving across the screen may be a problem for single-chip designs.
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