The advantages and disadvantages of DLP projectors

Digital Light Processing (DLP) is a display system based on optical micro-electro-mechanical digital micromirror device. DLP is used for quite a lot of show functions from traditional static shows to interactive displays, as well as non-traditional embedded purposes including medical, safety and industrial applications.

Compared with competing applied sciences, DLP supplies sharp, colorful, clear distinction images. For the reason that area between every micromirror is less than 1 micron, the area between pixels is significantly limited. Subsequently, the ultimate image seems clearer. With the usage of a mirror, the light loss is tremendously reduced and the light output is sort of high.

Clean (1080p decision), no jitter image. Good geometry and excellent grayscale linearity are achievable

Utilizing a exchangeable light source signifies that it may take longer than CRT and plasma shows, and the light from the projected image is just not inherently polarized. Light sources are easier to replace than backlights for LCDs and lighter than LCDs and plasma TVs, which are often user changeable. The new LED and laser DLP display system more or less eliminates the need for lamp replacement. DLP offers affordable 3D projection displays from a single unit and can be used with each lively and passive 3D solutions.

In contrast to liquid crystal displays and plasma shows, DLP displays don’t depend on the fluid as a projection medium and subsequently will not be limited by their inherent mirror mechanism, making them ideal for growing HD cinema and venue screens.

The DLP projector can handle up to seven totally different colors, giving it a wider coloration gamut.

DLP, which represents digital light processing, is a Texas Instruments technology. It uses mirrors and coloration wheels to mirror and filter the projected light. For dwelling and business 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 people only learn about single-panel DLP projectors.


The one downside of DLP projectors is what believers call “rainbow effects.” Consumer DLP projectors use transparent shade discs (half-coloration wheels) rotating in entrance of the lamp. This disk, divided into several main colors, reconstructs all the final colors. The place of these primary colours is like the slice of pie. Relying on the projector, there could also be 3 segments (1 red, 1 green and 1 blue) or four 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 eight segments have just a few white. The smaller the section, the less the turntable, the stronger the flexibility of the eyes to disassemble the color. This means you typically see something like a rainbow, particularly in bright areas of the image. Thankfully, not everyone sees these rainbows. So earlier than shopping for a DLP projector, be sure you check out some video sequences.

Some viewers find the tweeter of the colour wheel an annoyance. Nevertheless, the driveline may be designed to be silent, and a few projectors do not produce any audible colour wheel noise.

The sides of the projected image between black and light are often jagged. This is called jitter. This is how the image transitions from one color to a different, or how the curve seems in the image. In DLP projectors, the way to present this grey transition is by turning the light supply on and off faster in this area. Often, inconsistent dither artifacts can occur in color conversions.

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