Extended reading: "shocked 9999 yuan! Millet 150-inch laser television network first test"
Projection products have become very popular this year. Because of their small size, large projected screen size and ability to carry excellent systems, such as millet, micro whale, and many Internet TV manufacturers have invested in this Red Sea market. Looking at the new meters of laser light sources released in the past two days, it is one of the pioneers in the field of smart projection, but it is very interesting that the current laser projection products on the market all seem to target the television. why?
The laser cinema products previously released by Mimi (price is close to 80,000 yuan!)
Three kinds of light sources have their own advantages why the laser "deliberate" the TV
The development of projection products is a process that is very interesting and polarization is very serious, and it is still so today. The core of this kind of technology is the evolutionary history of “light sourcesâ€. The author has roughly divided the projection products that are still in service into three. The main types of light sources, namely, lasers, halogen bulbs, and LED light-emitting diodes, have three different advantages. At the current stage, all three have different areas of expertise. Why does the "laser theater" jump out and denounce the television? What?
The light source creates the laser why it only "replaces" the TV
First of all, let's take a look at the advantages of the three types of light sources. We all know that the most important property of projection products is light efficiency, that is, “the total luminous flux emitted by a light source and the electric power consumed by the light source. In the current phase of DLP projection (digital signal projectors), I think that the order of the ideal system light efficiency from high to low should be: "laser> conventional light bulbs> RGB LED". As to why, there are three reasons for this. .
More concentrated laser beam
First, the laser light source is more converging and easier to collimate and reshape. Therefore, the resources consumed in the overall equipment system are relatively small. That is, under the condition that the electric flux is the same, the laser light source has the highest light efficiency and may be the highest.
Traditional high-calorie bulb light source
Second, traditional light bulbs can do almost point light (millimeter note), but also relatively collimated, plus color wheel split light, and a variety of RGBW, RGBYW light color combination, so the system efficiency is OK, although not The laser is comparable, but it is superior in other areas (such as color accuracy).
LED projection light source
Third, the worst is at the same time the price is relatively close to the people of the LED light source, but the LED is difficult to do point light source characteristics (diode power is too concentrated and will soon burn), resulting in its beam is also very difficult to collimate, in comparison Under the long path length environment, the light source has a large dissipation loss, so the projection light efficiency is relatively low. However, compared with traditional light bulbs, they have a lifetime advantage.
Hurricane cool laser projection technology is really so magical?
* But the clamor is always clamoring. It is such a title. It may still be 100 years since the lasers wanted to "play together" with the TV! As for the reason...
Laser projection is good but TV always leads you for 100 years!
The next step is to trace the origin of the excavated grave. Throughout the development of projection technology, from the very beginning of the “shadow play†to the current laser, RGB LED has become the mainstream, and the nature of “light imaging†of projection technology has not changed. . In fact, we all know that the image quality of the projection product is not good, but why is the image quality of the projection product not good, but very few people have a deep investigation, the so-called 4K laser can bring the real 4K level? In fact, it seems to me that it is just a kind of narcissism.
TV and projection of "old ancestors"
The reason is because the projection theorem of “luminous imaging†has already appeared in the projection technology of the world before World War I. It is more than 100 years earlier than the appearance of television. A generation of projection products, the biggest upgrade of their technology may be the evolution of digital imaging, and the evolution of light sources, and the ultimate goal of the evolution of light sources is the light efficiency and the "collimation" and "shaping ability" of the author mentioned earlier There is no other than that.
Even the laser will emit halos
Speaking of resolution, a simple understanding is that the light point constitutes a single pixel density of the picture, which involves the "collimation" and "shaping power" of the light source. Both directly affect the pixel density and arrangement of the projection screen, but due to Diffuse reflectance of light sources will appear to dissipate the physical laws. Even if the "collimation" of the projection light source is excellent, halo interference will occur. This fundamentally affects the resolution of the picture. In summary, the 4K effect that the laser can bring may not be as good as the paper data.
This kind of 4K effect cannot be brought by projection products (the picture shows the Sony OLED A1)
·The product function has common technical principles but it moves
In summary, the advantage of television in terms of definition is that the projection product cannot reach at the present stage. Even though the two products have commonalities in terms of functions, they have great technical principles. In television products, different display technologies have different characteristics, and their roots are still many features centered on the purpose of “imagingâ€. On the other hand, the light source of projection products must follow the “light-through imaging†law to develop. If you can't get rid of the physical characteristics of "reflection," you can't compete with TV in terms of brightness or clarity.
Projection and TV never exist to complement each other
· While projection and TV look at each other, they can never be complementary
Some people say that the advantage of projection lies in the larger picture. I agree very much with this point. The projection product can indeed obtain a bigger picture at a relatively low price. If we do not talk about the brightness and picture quality, this is indeed what TV is not expecting. In terms of size, the TV looks up at the projection and projects on the picture to look up at the TV. However, due to the difference in the technical principles between the two, it seems that it will never be possible to complement each other.
Even the laser, the effect of the daytime is still seriously affected by the ambient light
· Intensity of laser projection on brightness and image quality
In front of me, I mentioned that one of the factors that gave rise to the birth of micro-projection products was the change of the light source. It is undeniable that lasers are really excellent as a light source for projection technology, which brings a smaller heat output and volume while also having a higher lifetime. The advantages.
Mi's laser projection data from previous tests (significant difference between day and night)
With conventional large-volume projections such as high-pressure mercury lamps and other light sources, the official logo data can reach 3,000 lumens or more, and the actual projection screen brightness is also about 300-400 lumens, and even if the laser light efficiency is currently optimal, it can actually bring about. The brightness of the screen can reach 500 lumens. Thankfully, as for the official logo data, it is well understood that the manufacturers themselves dare not blow out the gimmick. The brightness of the natural products in this value is also very high. limited.
TV products and projection products have initially established two different lines of development at the current stage. Screen-supported TVs have the ultimate appeal of “bigger and clearer†projections without screen-bound projections. "Smaller, larger picture, and higher brightness." Between the two sides, the two extremes of product development are set.
In addition to the "mega picture" do you "spike" it?
The difference between laser projection and the essential product of TV is destined to the different service areas of the two products. If it is insisted on by some people, it really plays an “alternative†effect. It is obtained from the current laser projection technology. Looking at the results, at this stage it can only be a joke. In summary, if you need a bigger screen and have a dark light environment, laser projection will really bring you a great experience and it will be A low price relative to the same size TV, but if you pursue the ultimate picture quality experience, or honestly buy TV.
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