The advantages and disadvantages of DLP projectors

Digital Light Processing (DLP) is a display system primarily based on optical micro-electro-mechanical digital micromirror device. DLP is used for a wide range of display functions from traditional static displays to interactive displays, as well as non-traditional embedded functions together with medical, security and industrial applications.

Compared with competing technologies, DLP gives sharp, colorful, clear contrast images. For the reason that area between every micromirror is less than 1 micron, the area between pixels is tremendously limited. Due to this fact, the final image seems clearer. With the use of a mirror, the light loss is vastly reduced and the light output is kind of high.

Easy (1080p resolution), no jitter image. Excellent geometry and glorious grayscale linearity are achievable

Utilizing a changeable light supply means that it could take longer than CRT and plasma shows, and the light from the projected image will not be inherently polarized. Light sources are simpler to interchange than backlights for LCDs and lighter than LCDs and plasma TVs, which are sometimes consumer exchangeable. The new LED and laser DLP display system more or less eliminates the need for lamp replacement. DLP gives affordable 3D projection displays from a single unit and can be utilized with both energetic and passive 3D solutions.

In contrast to liquid crystal shows and plasma displays, DLP displays don’t rely on the fluid as a projection medium and due to this fact should not restricted by their inherent mirror mechanism, making them splendid for growing HD cinema and venue screens.

The DLP projector can handle as much as seven completely different colors, giving it a wider shade gamut.

DLP, which represents digital light processing, is a Texas Instruments technology. It uses mirrors and shade wheels to replicate and filter the projected light. For residence and enterprise use, the DLP projector uses a reflective panel for all three colors. Digital cinema has three-panel DLP projectors priced at more than 10,000 US dollars. Most individuals solely learn about single-panel DLP projectors.


The only downside of DLP projectors is what believers call “rainbow effects.” Client DLP projectors use transparent color discs (half-shade wheels) rotating in front of the lamp. This disk, divided into a number of main colours, reconstructs all the ultimate colors. The place of those major colors is just like the slice of pie. Relying on the projector, there may be three segments (1 red, 1 green and 1 blue) or 4 segments (1 red, 1 green, 1 blue and 1 white), 6 segments (1 red, 1 green, 1 blue, then 1 red, 1 green and 1 blue), and even 8 segments have a few white. The smaller the section, the less the turntable, the stronger the power of the eyes to disassemble the color. This means you typically see something like a rainbow, particularly in vivid areas of the image. Happily, not everybody sees these rainbows. So earlier than shopping for a DLP pico projector, make sure you check out some video sequences.

Some viewers find the tweeter of the color wheel an annoyance. Nevertheless, the driveline could be designed to be silent, and a few projectors don’t produce any audible color wheel noise.

The edges of the projected image between black and light are usually jagged. This is called jitter. This is how the image transitions from one shade to a different, or how the curve seems in the image. In DLP projectors, the best way to present this grey transition is by turning the light supply on and off sooner in this area. Sometimes, inconsistent dither artifacts can happen in coloration conversions.

Because one pixel can’t render shadows exactly, error diffusion artifacts caused by averaging shadows on different pixels