Nowadays, the home smart projectors on the market are mainly dominated by LED light sources and laser light sources. LED light sources were originally widely used in home projectors due to their low manufacturing cost and high cost performance, but their brightness could not break through the bottleneck, and the brightness of the picture was always poor. In recent years, with the continuous development of science and technology, laser light sources have begun to emerge in the home projector market, and a number of more cost-effective new home laser projectors have emerged.
The laser light source projector not only has an effective improvement in brightness, but also has a longer lifespan, which can basically reach more than 20,000 hours. In addition, the laser light source also has the advantages of ultra-wide color gamut and excellent color reproduction, which is far superior to the LED light source. These outstanding properties make the laser light source gradually become the mainstream light source of mid-to-high-end models.
At present, there are three main application schemes in the field of laser light sources, namely monochromatic laser and trichromatic laser. Although they are both called "laser projections", the visuals presented by the two are very different.
1.Monochromatic laser
Monochromatic laser uses a single blue laser as the light source, emits panchromatic light by rotating the fluorescence color wheel, and then separates the three primary colors through a prism, and purifies the filter to finally present the picture projection we see.
This technology was developed by Guangfeng Technology in 2007, and the technology has been continuously optimized, and the current widely used is ALPD2 in 20120 technology. Since only a single laser emitter is required in the principle of this technology, manufacturing costs are significantly reduced. In addition, it can also take advantage of the high luminous efficiency of the laser to improve the brightness of the picture.
However, there are also obvious shortcomings in this technology that have not been solved so far. Its core illuminator only has a single blue laser, which will produce various stray light through the fluorescent color wheel, which is prone to color casting, and in order to accurately color the picture, it needs to filter out more light, which will lead to a large reduction in brightness. That is, brightness and color performance cannot be both. At the same time, there is also short-wave blue light in the stray light, which will cause irreversible damage to our human eyes for a long time, and have adverse effects such as dizziness and visual fatigue.
2.Three-color laser
Three-color laser can be said to be the most promising laser light source scheme at present, since the end of last year, it has attracted strong attention from enthusiasts in the field of projection.
The red, green, and blue colors of the trichromatic laser are emitted by different lasers, and can be directly imaged without going through the color wheel. This technology not only ensures that the color purity of the light source is high enough, but also makes the light collimation stronger, so as to further improve the clarity of the image and bring users a better visual experience. When projected, the trichromatic laser also exhibits ultra-wide color gamut coverage, almost more than twice that of LED light sources and monochromatic lasers.
In general, the priority in terms of brightness, contrast, etc. should be: trichromatic laser monochromatic laser. Tri-color laser technology is undoubtedly ideal for home projector light sources.
3.Speckle phenomenon
I believe that when it comes to this, some friends have already wanted to question: since the three-color laser technology is so good, why has it not been well popularized until now?
In fact, it is because the early laser technology is difficult to apply, and the production scale of red laser emitters is small and the cost is high, resulting in the high cost of finished products. In the past two years, nuts、HisenseVIDDDA and other brands have overcome application problems,The technology has sunk to models below 10,000 yuan,Ordinary users can also feel the ultra-high-quality picture effect brought by the three-color laser。
With the popularization of technology and the increase in popularity, many people have begun to spread rumors of "speckling".
Speckle is actually a physical phenomenon of reflected light, and it is a ubiquitous phenomenon. Because there is a lot of stray light in other light sources, the distribution of speckle is irregular, so it is difficult to detect with the naked eye. The strong coherence of the laser light source makes speckle more noticeable.
In overcoming the problem of speckle, the head brand nut projector has successfully developed LSR (laser scanning projection) dynamic speckle dissipation technology after continuous deep cultivation and technology accumulation, realizing 97% of the speckle in the projection picture, breaking through industry restrictions, and easily achieving no perception to the human eye. In addition,There is also a multi-dimensional dynamic speckle dissipation solution adopted by HisenseVidda,Achieve a weak sense of speckle。
The three-color laser can be said to be the light source technology with no obvious shortcomings at present, and it has broad application prospects. Next, I would like to recommend a few currently hot-selling laser projectors, including multi-brand monochrome laser, three-color laser technology projection products. You can refer to it as needed, so as to choose a home projector that suits you.
-Product Recommendation-
【Nut N1S Pro】 Three-color laser technology
As the flagship product of the N1 series, the N1S Pro continues the unique and novel all-in-one gimbal design that has been well received. This gimbal not only supports 135° tilt adjustment up and down, but also 360° free rotation left and right, and has auxiliary functions such as automatic correction and trapezoidal correction, making the user experience more flexible and convenient, and full of comfort.
It is also equipped with the malc three-color laser light machine developed by the nut brand, which has the same origin as the cinema. The Nut N1S Pro not only boosts the brightness to 2000CVIA, but also covers 110% BTThe 2020's ultra-wide color gamut and 1600:1 contrast ratio at the same time can present a picture texture closer to the original.
In addition, it also supports 4K HD resolution, and the three-color laser forms an excellent combination, which further improves the picture experience, and easily achieves high-quality viewing day and night. Less than 7k**, but it can show excellent cost performance. It is suitable for those who want to pursue high-quality viewing effects
【Nut N1S U1tra】 Three-color laser technology
As the king of the Nut N1 series, the Nut N1S Ultra still continues the appearance design of the smart gimbal: it has an integrated gimbal with 135° up and down and 360° left and right. Coupled with the gimbal-style picture correction function, with the angle adjustment of the fuselage, autofocus and correction functions, you can enjoy high-definition image quality immediately after turning on, even if you adjust it casually, you can keep the picture instantly square and clear.
Nut N1S Ultra is also equipped with the same source of the cinema Malc Krypton three-color laser light machine, and the brightness has been further upgraded to3000CVIA lumens, which is comparable to the TV picture effect of tens of thousands of yuan. In addition, it also has the nut's self-developed LSR dissipation technology, so you can't feel the presence of speckle during the experience.
In addition, it also uses the latest MTK9679 processor, combined with 4G+64G large storage space, the running experience is smooth and free, combined with the new BounFire OS system, a variety of humanized use modes, bringing users a stronger experience.
【Vidda C1 Pro】 Tri-color laser technology
HisenseVidda C1 Pro,It also uses three-color laser technology。 It is worth mentioning that,It is different from nuts in the dissipation of spot technology,Hisense uses a self-developed multi-dimensional dynamic dissipation solution,But it seems that the effect of this machine in dissipating spots on the market is somewhat controversial。
Hisense Vidda C1 Pro has 110% BT2020Ultra-wide color gamut,The color performance is still quite in line with the overall level of projectors at the same price。 What is more insufficient is that in terms of its brightness, it has only reached 2350CVIA lumens, which is a bit weak in the price segment of nearly 10,000 yuan. In addition, in terms of sound quality, it is equipped with two 10W high-power speakers, and the listening experience is still very good.
【DangbeiX5】Monochrome laser technology
Different from the previous three projection products,DangbeiX5Projector,It uses monochrome laser technology。 This product gives full play to the advantages of high brightness of monochrome laser technology, with a brightness of up to 2450CVIA lumens, and the picture effect is not affected when the indoor light is strong during the day. And it uses one of the few flagship master chips on the marketMT9679, which makes its performance significantly improved and meets the basic needs of most families. However, the problem of color cast in the picture has not been well solved, and it is not suitable for users with strict color requirements.
【tips：】
From monochromatic lasers to mixed-light lasers, to today's trichromatic lasers. Each technology provides our ordinary consumers with more, higher quality, and more cost-effective home projector products. If you want to pursue a better viewing experience, it is recommended to try the three-color laser projection that is gaining momentum.
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