The advantages and disadvantages of DLP projectors

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

Compared with competing applied sciences, DLP offers sharp, colourful, clear distinction images. For the reason that area between each micromirror is less than 1 micron, the space between pixels is vastly limited. Therefore, the ultimate image appears clearer. With using a mirror, the light loss is tremendously reduced and the light output is sort of high.

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

Using a exchangeable light source means that it may take longer than CRT and plasma displays, and the light from the projected image just isn’t inherently polarized. Light sources are simpler to exchange than backlights for LCDs and lighter than LCDs and plasma TVs, which are sometimes consumer changeable. The new LED and laser DLP display system more or less eliminates the necessity for lamp replacement. DLP offers affordable 3D projection shows from a single unit and can be used with each active and passive 3D solutions.

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

The DLP projector can deal with as much as seven totally different colours, giving it a wider colour gamut.

DLP, which represents digital light processing, is a Texas Instruments technology. It uses mirrors and color wheels to reflect and filter the projected light. For home 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 top 10 mini projector,000 US dollars. Most individuals solely learn about single-panel DLP projectors.


The one downside of DLP projectors is what believers call “rainbow effects.” Client DLP projectors use clear colour discs (half-color wheels) rotating in front of the lamp. This disk, divided into a number of main colours, reconstructs all the ultimate colors. The position of those main colours is like the slice of pie. Depending on the projector, there may 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 eight segments have a number of white. The smaller the part, the less the turntable, the stronger the ability of the eyes to disassemble the color. This means you sometimes see something like a rainbow, especially in shiny areas of the image. Fortunately, not everyone sees these rainbows. So before buying a DLP projector, remember to check out some video sequences.

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

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

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

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