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The basic principle of everything from color to color and the principle of trichromaticity are always the same. The author is a painter of art. Understanding this kind of problem is biased towards the aesthetics category. It is well known that the initial evolution of display devices is the evolution from black and white worlds to color worlds. Then what factors are needed from the black and white world to the colorful world? The author thinks that we must first talk about colors. I believe that many young artists who have studied art know that the three primary colors of pigments are "red, yellow and blue" and the primary colors of colored light are "red, green and blue." Why is this? 
· In general, the brightness and saturation of the product are directly related to the light source, and the light source is one of the most important factors for pricing a projection product. What is the difference between different light sources? Which light source is more suitable? Yourself? Please look back.
Three kinds of light source Three people who are the most suitable for you? We all know that no matter what kind of projection equipment is the core technology lies in the application of light sources. As far as the current technology stage is concerned, light sources can be roughly divided into three categories. Let us first look at which three types of light sources they are and what advantages and disadvantages they have. (Simply introduce the light source at the same time, the author also hopes to give some help to consumers who want to start the projection equipment, choose the more suitable for their own product is the most important)
1. "Traditional" bulb light source:
As we all know, the original projection equipment used light bulbs as light sources. From the earliest metal halogen lamps to later ultra-high pressure mercury lamps, the former has gradually disappeared in the current market, while the latter is still the mainstream, and the metal halogen bulbs Nowadays, there is nothing worthy of mentioning. The advantages of high-pressure mercury lamps, such as the brightness of their life, still have certain advantages in the current market. 
2. Emerging LED light source:
LED light source is a low-energy light source that has risen for a period of time, and has obvious advantages. The lifespan of LED light-emitting diodes is naturally the biggest advantage, and the relative determination is also relatively obvious, that is, the brightness performance is not satisfactory, the initial LED. When the light-emitting module has not yet been popularized, it was once more expensive, but it seems that the price of such a light source is still relatively close to the people. 
3. Laser light source:
Compared with the former two kinds of light sources, the laser light source has obvious advantages in terms of physical characteristics. The half-life of the luminous body itself is more obvious in the light bulbs of conventional projection devices, and the laser is the longer half-life light source. First, the low attenuation characteristics of the laser projection equipment, color saturation and contrast can be as new. Another advantage of laser projection is "ultra-short focus." With a distance of about 30 cm from the projection screen, it can project more than 100 inches of screen. This fundamentally opens up the projector product to take a certain distance to get the corresponding size screen. Hey. 
Why do you like "micro-investments" for so many great coffee?
Jumping to the beginning of the topic, the author once mentioned that many TV manufacturers and box manufacturers have the intention to join in the great projection business. The majority of TV manufacturers are mainly Internet TV manufacturers. The reason is what? We all know that the technical accumulation of such manufacturers is not profound, and most of them do not even have their own production lines. In recent years, the “micro-investment products†that are hot have had two advantages that television does not have. 
This is the biggest reason. In itself, for emerging companies, TV products are a product line that requires a very high technical threshold. Because of the high cost and technical limitations of the production line, intelligence uses the price/performance ratio as a selling point, and now the panel costs skyrocket. The decline in profits can be called horror. Therefore, finding a new outlet can be a good strategy. (High-end projection products naturally have the same technology threshold as TV, but the low-end technology is relatively open, and even college graduates are simple projectors) 
Today's micro-project products have opened up a martial arts industry that has its own path, which is highly integrated. In addition to its projection capabilities, these products also have audio and batteries, and most importantly, the participation of Internet TV manufacturers. Bringing intelligent systems and Internet sources into the game, micro-projections are now highly mobile and integrated, and they can even be played in remote areas.
Written at the end:
Through the above analysis, we can draw a simple conclusion. For the moment, the most suitable projector for home use is a micro-projection product. Such a product is small in size and can even be carried out. The stability of the light source is also relatively good. , And laser products are currently superior in performance, but the price is high, for example Hisense's laser television, the price is generally around 50,000, but it can get comparable display capacity with LCD TVs.
If you have the financial ability, it is recommended to choose such products, after all, want to get a 120-inch screen, 50,000 yuan can not buy such a large LCD TV. Moreover, the laser also has the characteristic of ultra-short focus projection, and the positioning of the two products is different. Therefore, the consumers facing are also different. We still have to prescribe the right medicine according to our own economic and environmental conditions.
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
From this year's AWE, many television and box manufacturers have expressed their strong desire to join the projection industry. The projection products that break the boundaries of television have a certain degree of competitiveness in the market, and have also formed in the market. A certain chaos, which is similar to the situation of the Internet TV products just appeared? So small to "micro-investment" product prices of several hundred thousand dollars, as large as the hurricane of cool laser technology products are close to 100,000, which is nearly 40 times the spread of what exactly is formed? Today we will break the casserole in the end and dig deep into the small “secrets†behind the chaos in the projection market.
Hurricane Cool Laser Projection Technology
Once upon a time, the author once thought about setting up a projector at home and turning the “big white wall†into a television. Theoretically speaking, “As long as the distance and the area of ​​the projectile are two factors, it can be projected. The picture is huge enough. This theory is basically established on the projection product. What kind of product can bring the most suitable experience? This is one of the topics we are discussing today. Laser projection imaging principle
As we all know, the projection technology first appeared in film projectors, through the light source emitted by the device, the irradiated film silhouette is irradiated to form an image. From this point of view, whether it is a laser projection or a high-pressure mercury lamp or other light source projection device, it is fundamentally not separated from this type of shadow-like imaging principle, so in principle, whether it is a high-end laser projection Unlike other light source projection equipments, they are essentially homologous in nature, but they have different imaging characteristics. And all of this comes from the composition of color. Even if we move without change, we look at it. See what is going on here. Trichromatic theory has never changed
The mixing of the three primary colors of pigments, also known as subtractive mixing, is the reduction of light. After the two colors are mixed, the luminosity is lower than the original luminosity of the two colors. The more the colors are combined, the more light is absorbed and the closer to black. Therefore, the more deployment times, the worse the purity, and the more it loses its simplicity and vividness. The mixing of the three primary color pigments should theoretically be black, and in fact it is a kind of black turbid color with very poor purity, and it can also be considered as a dark gray with very low luminosity. Magenta and green, yellow and purple, blue and orange, all the colors of the mix are close to black. Three primary colors and three primary colors of light color
The three primary colors of light are light color mixing. The mixture of light colors is additive color mixing, which is the increase of light. Two kinds of color light are mixed, and the luminosity is the sum of two colors. The more the color combination, the stronger the luminosity and the closer to white. Among them, magenta and green, yellow and blue, cyan and red, these complementary light mixing and red, blue and green primary light mixing all become white light. Color televisions, color displays, color LCDs, and three-color fluorescent tubes are designed using this principle. To put it simply, paper is white and it needs black. The brightness of the light source itself, then the black field appears to only need to reduce the brightness, so no black, but the need for brightness, it's that simple, the aforementioned additive color mixing and subtractive color mixing, is this principle. In light color theory, red, green and blue can make up all colors
At present, almost all display devices have similar dyeing principles. RGB (R: red), (G: green), and (B: blue) red, green, blue, and three colors are mixed to evolve the television in front of us. Of course, there are RGBW structures that add white light to the three primary colors. In short, different colors are displayed by adjusting the amount of light entering different color pixels. This is the coloring principle of the current display device, and the projection is also the same. The color of the light source is colored by the color filter. High-pressure mercury lamp light source
From the perspective of product volume, the traditional bulb light source projector is relatively heavy and has relatively high requirements for the environment. Usually, such low-priced non-professional products cost between 3,000 yuan and 8,000 yuan, and are generally used as company PPTs. Demonstration or educational use is more suitable. It is not suitable for home use. Therefore, it is not recommended for purchase. Professional-grade products are excellent, but the price is unacceptable. LED projection light source
LED light source has promoted a new type of projection equipment. Since the LED projection light source has an advantage in terms of volume compared to the "traditional" light bulb, the more lightweight "micro-projection" should be shipped. Born with light weight, high life expectancy, and relatively low heat output, LED light source seems to be tailor-made for micro-projection. Micro-projection has a small size, easy to carry and a certain price advantage. Laser light transmission principle
Electric light bulbs, such as light sources such as high-pressure mercury lamps, have approximately 1/3–1/2 of visible light energy. High-purity red, green, and blue primary-color lasers that generate laser light with a wavelength line width of less than 1 nm can be used 100% by projectors. Moreover, the laser does not need to use reflective bowls to collect light beams. The optical fiber coupling efficiency of multiple lasers can be integrated to an efficiency of 90% or more. The disadvantage is that the price is relatively high. For example, a Sony brand laser projector is usually sold for more than 50,000 yuan. Mainly portable micro-projection products (no need for large-scale display panel components)
First, the technical threshold is low, and the product level is small: Intelligent micro-injection products integrating Harman Kardon audio
Second, it has a high degree of integration: September 09, 2022