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 a wide range of show purposes from traditional static shows to interactive shows, as well as non-traditional embedded applications including medical, safety and industrial applications.

Compared with competing technologies, DLP offers sharp, colorful, clear distinction images. Because the area between each micromirror is less than 1 micron, the house between pixels is significantly limited. Due to this fact, the ultimate image appears clearer. With using a mirror, the light loss is enormously reduced and the light output is quite high.

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

Using a exchangeable light supply means that it could take longer than CRT and plasma displays, and the light from the projected image shouldn’t be inherently polarized. Light sources are easier to switch than backlights for LCDs and lighter than LCDs and plasma TVs, which are often consumer changeable. 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 used with each active and passive 3D solutions.

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

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

DLP, which represents digital light processing, is a Texas Instruments technology. It makes use of mirrors and color wheels to reflect 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 find out about single-panel DLP projectors.

Disadvantages:

The only downside of DLP projectors is what believers call “rainbow effects.” Shopper DLP projectors use clear colour discs (half-shade wheels) rotating in entrance of the lamp. This disk, divided into a number of major colours, reconstructs all the final colors. The position of those major colors is just like the slice of pie. Depending 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 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 typically see something like a rainbow, particularly in shiny areas of the image. Luckily, not everyone sees these rainbows. So earlier than shopping for a DLP projector, make sure to check out some video sequences.

Some viewers find the tweeter of the colour wheel an annoyance. Nonetheless, the driveline may be designed to be silent, and some projectors don’t 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 colour to a different, or how the curve appears within the image. In DLP projectors, the way to present this gray transition is by turning the light source on and off sooner in this area. Often, inconsistent dither artifacts can occur in coloration conversions.

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