How to choose a projector? Take a look at the most common DLP projection technologies

2022 08/15

DLP is the abbreviation of "Digital Light Procession", which means digital light processing, which means that this technology must first process the image signal digitally, and then project the light.
Then someone said that after reading the concept, they still have a little understanding, don't worry, wait for me to explain.
To be more specific, the working principle of DLP projection technology is that the light source hits the light on the lens to obtain usable parallel light, the parallel light passes through the color wheel to obtain a uniform rectangular spot, and then the core component of DLP projection technology is the digital micromirror chip. DMD (Digital Micromirror Device) processing, and finally hit the light on the projection lens, and get the projection we need through the lens.

It is said that dlp projector portable is good, what's so good about it?
Compared with several other projection technologies on the market, DLP mainly has the following advantages:
1. The tight gap between the micromirrors in the DLP makes the projected image very delicate and has a very high resolution capability.

Projection using DLP technology, the picture quality is delicate

2. The digital characteristics of DLP can achieve pixels without snowflakes, high accuracy, and better grayscale ratio and color reproduction quality.

Because of this, it is currently applied to the highest-level projection scenarios, such as movie theaters, large-scale venue exhibitions, etc., which use DLP technology for projection. It can be said that dlp projector 4k is the preferred solution at present and in the future.

DLP technology projection used in Guizhou Science and Technology Museum

3. The projection of DLP technology adopts a fully sealed opto-mechanical design, which can effectively prevent dust from entering the interior of the fuselage, ensure image quality, prolong opto-mechanical life, and reduce the cost of post-maintenance.

dlp 4k projector

DLP & LCD projection 24H dust test effect (dust concentration 200 ppcc)

4. DLP projection technology is stable and reliable. DLP's core technology, the DMD chip, has not only passed all standard semiconductor qualification tests, but has also proven to have a lifespan of more than 100,000 hours in a simulated operating environment. In May 2002, the Munsell Color Science Laboratory of the University of Rochester in the United States compared five portable LDC LCD projectors and two DLP home projectors on the reliability of the picture. 4000 hours of uninterrupted work. After testing, all LDC LCD projectors have obvious picture defects, while the projectors using DLP technology have no picture defects.

(Top) The 3LCD display technology has 3 panels. Over time, due to mismatching, red and green dispersion will appear.

best dlp projector

(Bottom) DLP display technology is a single panel, no mismatch, long-term use is still clear

5. DLP technology can support high brightness projectors. The 6,000 to 50,000-lumen projectors used in many large venues now use DLP technology. Some office and home dlp 1080p projectors also achieve a brightness of 3500-4000 lumens. If you want to buy a projector for children to take online classes or work from home, it is recommended to choose high-brightness projection using DLP technology.

Is there no downside to DLP technology?
In the attitude of seeking truth from facts, DLP technology is not perfect:
1. The color effect of DLP projection mainly depends on the color wheel and DMD chip. In some low-end products, the single-chip DLP uses a three-segment color wheel or a four-segment color wheel, and the color reproduction ability is weak, so there will be color distortion and the color is not vivid enough. Therefore, when purchasing DLP projection, it is recommended to choose a product with a six-segment color wheel.

Some low-end and mid-range DLP projections experience color distortion

2. In addition, under the DLP technology, the display of each color is not synchronized, and there are some color breakage phenomena (commonly known as rainbow effect).

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