The advantages and disadvantages of DLP projectors

Digital Light Processing (DLP) is a display machine 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 purposes including medical, security and industrial applications.

Compared with competing applied sciences, DLP supplies sharp, colorful, clear contrast images. Because the space between each micromirror is less than 1 micron, the house between pixels is significantly limited. Therefore, the final image looks clearer. With using a mirror, the light loss is drastically reduced and the light output is kind of high.

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

Utilizing a replaceable light supply signifies that it could take longer than CRT and plasma shows, and the light from the projected image shouldn’t be inherently polarized. Light sources are simpler to replace than backlights for LCDs and lighter than LCDs and plasma TVs, which are often consumer substituteable. The new LED and laser DLP display system more or less eliminates the necessity for lamp replacement. DLP gives affordable 3D projection displays from a single unit and can be utilized with both energetic and passive 3D solutions.

Not like liquid crystal shows and plasma displays, DLP displays do not depend on the fluid as a projection medium and due to this fact should not limited by their inherent mirror mechanism, making them preferrred for growing HD cinema and venue screens.

The DLP projector can handle as much as seven completely 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 mirror and filter the projected light. For house and enterprise use, the DLP projector makes use of a reflective panel for all three colors. Digital cinema has three-panel DLP projectors priced at more than 10,000 US dollars. Most individuals only find out about single-panel DLP projectors.


The only downside of DLP projectors is what believers call “rainbow effects.” Client DLP projectors use clear shade discs (half-colour wheels) rotating in entrance of the lamp. This disk, divided into a number of major colours, reconstructs all the ultimate colors. The place of those major colors is just 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 eight segments have a couple of white. The smaller the section, the less the turntable, the stronger the power of the eyes to disassemble the color. This means you sometimes see something like a rainbow, particularly in shiny areas of the image. Thankfully, not everybody sees these rainbows. So earlier than shopping for a DLP projector, you’ll want to check out some video sequences.

Some viewers find the tweeter of the color wheel an annoyance. However, the driveline could be designed to be silent, and some projectors do not produce any audible shade 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 coloration to another, or how the curve appears within the image. In DLP projectors, the way to present this gray transition is by turning the light supply on and off faster in this area. Sometimes, inconsistent dither artifacts can happen in color conversions.

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