Older DLP-based projectors use metal-halide lamps combined with a color wheel. The mechanical color wheel is placed between the lamp and the DLP chip(s). The wheel is divided into multiple sections. Older models only use the three primary colors: red, green and blue, while newer projectors take advantage of the secondary colors as well: magenta, yellow, and cyan. This enables the projector to have a broader spectrum of color (This new color performance is called BrilliantColor). The chip is synched with the color wheel so that the current color of the wheel that is in front of the lamp is displayed on the DMD (digital micromirror device). The mirrors oscillate back and forth, either directing light to or away from the lens path to turn the pixel on or off. Each mirror relates to a single pixel. The wheel rotates at a high-rate (up to 10 times the frame rate) so observers can see the full color.
DLP models either offer single chip or three chip projectors. The difference is that in three chip applications, each primary color is sent to its own DLP chip, instead of all colors being sent to a single chip.
Newer DLP projectors are using high-power LEDs or even lasers for illumination, which eliminate the need for the rotating color wheel, which in-turn eliminates the "rainbow effect" (red, green, or blue 'shadows' that can sometimes be seen in high contrast or fast moving images).
DLP Projectors typically provide a larger size projection due to the fact that DLP projectors focus more on brightness and color saturation than LCD and in most cases, higher quality. Also DLP produces a great consistent picture. One of the biggest benefits of DLP is that is has a longer lifespan and its compact design.
Another benefit of DLP is that pixelation is not as visible as it is in LCD (this is known as the 'screendoor effect' in LCD projection). Also it has better black levels and contrast, which can be vital in video images.
These are some technical aspects to keep in mind when choosing the right DLP Projector Rental.
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NEC has just announced the 3000-lumen NP-V300X, an XGA projector that is both very portable and very affordable. The NP-V300X also gives users the most essential features needed to show off presentations in classrooms or business meetings. The V300X is a part of the new V Series from NEC and is designed to provide you with higher brightness via a small mobile projector to accommodate large screens or higher ambient lighting conditions. The V300X also comes with a plethora of other features that can save you a ton of money. ECO mode technology allows the lamp in the projector to last up to 5000 hours and also allows you to run the device with lower audible noise. In addition to that, cost of ownership is also reduced. The unique power management capabilities of the V300X allows the projector to automatically turn off when an incoming signal is not detected from any other inputs. This model from NEC also offers quick start, auto power via the RGB input connector and direct power-off with absolutely no cooling required after shutdown. In addition to that, the V300X is completely filter-free which eliminates the hassle and time spent monitoring and changing filters. According to Product Manager for projectors at NEC Display Solutions Rich McPherson, "The lightweight V300X is ideal for users that require projection on-the-go, with sufficient features to quickly set up, easily present and swiftly shut down. This model is packed with powerful technologies that greatly increase functionality without a high price tag. From its Plug and Play setup and BrilliantColor technology to its built-in Creston Roomview Connected technology, the V300X is versatile and efficient for both classrooms and meeting rooms." Full features of the NEC V300X include: