The advantages and disadvantages of DLP projectors

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

Compared with competing applied sciences, DLP supplies sharp, colorful, clear contrast images. Because the area between every micromirror is less than 1 micron, the space between pixels is enormously limited. Therefore, the final image looks clearer. With the usage of a mirror, the light loss is enormously reduced and the light output is sort of high.

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

Using a changeable light source signifies that it might take longer than CRT and plasma displays, and the light from the projected image will not be inherently polarized. Light sources are easier to exchange than backlights for LCDs and lighter than LCDs and plasma TVs, which are often consumer exchangeable. The new LED and laser DLP show system more or less eliminates the necessity for lamp replacement. DLP presents affordable 3D projection shows from a single unit and can be used with both active and passive 3D solutions.

In contrast to liquid crystal displays and plasma shows, DLP displays do not rely on the fluid as a projection medium and therefore are usually not restricted by their inherent mirror mechanism, making them ultimate for rising HD cinema and venue screens.

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

DLP, which represents digital light processing, is a Texas Instruments technology. It uses mirrors and shade 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 10,000 US dollars. Most individuals solely find out about single-panel DLP projectors.


The one downside of DLP projectors is what believers call “rainbow effects.” Shopper DLP projectors use transparent color discs (half-color wheels) rotating in entrance of the lamp. This disk, divided into several main colours, reconstructs all the ultimate colors. The position of those primary colors is like the slice of pie. Depending on the valuable projector, there may 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 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 brilliant areas of the image. Happily, not everybody sees these rainbows. So before shopping for a DLP projector, make sure to check out some video sequences.

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

The edges of the projected image between black and light are normally jagged. This is called jitter. This is how the image transitions from one color to another, or how the curve appears within the image. In DLP projectors, the way in which to present this grey transition is by turning the light source on and off quicker in this area. Occasionally, inconsistent dither artifacts can occur in shade conversions.

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