The advantages and disadvantages of DLP projectors

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

Compared with competing technologies, DLP supplies sharp, colourful, clear distinction images. Because the space between every micromirror is less than 1 micron, the space between pixels is significantly limited. Therefore, the ultimate image seems to be clearer. With the usage of a mirror, the light loss is vastly reduced and the light output is quite high.

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

Using a changeable light source implies that it could take longer than CRT and plasma shows, and the light from the projected image isn’t inherently polarized. Light sources are easier to interchange than backlights for LCDs and lighter than LCDs and plasma TVs, which are often user replaceable. The new LED and laser DLP show system more or less eliminates the need for lamp replacement. DLP offers affordable 3D projection shows from a single unit and can be used with both active and passive 3D solutions.

Not like liquid crystal shows and plasma displays, DLP shows do not depend on the fluid as a projection medium and due to this fact aren’t restricted by their inherent mirror mechanism, making them superb for rising HD cinema and venue screens.

The DLP projector can handle up to seven different colours, 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 residence 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 solely know about single-panel DLP projectors.


The one downside of DLP projectors is what believers call “rainbow effects.” Client DLP projectors use clear shade discs (half-colour wheels) rotating in front of the lamp. This disk, divided into a number of major colors, reconstructs all the ultimate colors. The place of these primary colours is like the slice of pie. Relying on the projector, there could also be three 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 8 segments have a number of white. The smaller the part, the less the turntable, the stronger the power of the eyes to disassemble the color. This means you sometimes see something like a rainbow, especially in shiny areas of the image. Thankfully, not everyone sees these rainbows. So earlier than shopping for a DLP projector, make sure you check out some video sequences.

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

The edges of the projected image between black and light are often jagged. This is called jitter. This is how the image transitions from one colour to a different, or how the curve appears in the image. In DLP projectors, the way in which to current this gray transition is by turning the light source on and off faster in this area. Occasionally, inconsistent dither artifacts can happen in colour conversions.

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