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Introduction: Currently, laser display technology mainly includes LED+laser, phosphor+blue light, three-color laser technology, and two-color (red+blue) four technologies.
In the projector market, a laser projector can be said to be a latecomer with inestimable development prospects. Since 2016, laser projectors can be said to be full bloom, whether it is laser home projectors, laser projectors. , laser micro projector or laser education projector, the major manufacturers are active layout, full coverage. But what are the advantages of laser projectors? I believe many consumers and friends are still a bit confused. Today we will look at the laser projector, in the end what kind of charm.
Let's look at the Baidu Encyclopedia for laser projectors: Laser projectors use laser beams to transmit images. The optical components of the laser projector are mainly composed of red, green and blue light valves, beam X prisms, a projection lens, and a driving light valve. There are red, green and blue three-color lasers in laser projectors. The laser beam is transmitted through the corresponding optical element and the processing chip to expand the beam and then transmitted to the X prism to integrate the three laser beams. Then the integrated laser beam is transmitted from the projection lens to the projection screen to complete the entire laser projector display process. .
I believe that everyone read this explanation is not understood so thoroughly, so here the author explained the secret of the laser projector layer by layer.
Currently, laser display technology mainly includes LED+laser, phosphor+blue light, three-color laser technology, and two-color (red+blue) technology. LED+laser light source technology is for the low-end market. No more than 3,000 lumens, phosphor + laser light source technology is targeted at the low-end market projection, the maximum brightness of the relevant equipment can exceed 10,000 lumens, and the three-color laser is considered to be the most pure laser light source, mainly for the high-end market, related The brightness of the equipment is basically more than 20,000 lumens; and the emergence of two-color laser technology projector is based on the blue + laser light source technology, an increase of the red laser, can bring the laser projection greater color coverage, better color display The richer red details, while the two-color laser technology retains the economic advantages of monochrome fluorescence technology.
LED+laser light source technology principle
One of the biggest advantages of LED+laser hybrid light source technology compared to traditional light bulb projectors is that they have a long lifespan. Using a combination of LED+laser projectors lasts up to 30,000 hours, basically eliminating the need for late-stage maintenance costs and operating costs. The use of light source projectors for a long period of time does not have significant brightness attenuation. However, LED+laser light source projectors are not good because their brightness is limited, and the light source technology structure is more complex. For prospective highlights and technical difficulty levels, the prospects are not. It is so clear that it is rarely used in the market right now.
Blu-ray + Phosphor Light Source Technology
The phosphor + blue light source hybrid projector (also known as the blue laser projector) is a blue-colored light source that uses high-speed rotating fluorescent pink wheels that contain red, green and other colors. Produce red, green, and blue primary colors, and produce different colors of light output at different times, and ultimately achieve white light output. This technology overcomes the most fundamental technical problems of laser display in terms of efficiency and reliability. It achieves a more pure color image, is closer to the international standard color gamut, and has a high lifetime, and is generally more than 20,000 hours. Stronger, no danger of crushing, and even more environmental protection. However, due to the nature of the phosphor + blue light source, it can only be achieved with a single DLP, which is also insufficient for the business, engineering, and education markets.
ALPDTM Technology Principle
ALPDTM, a fluorescent laser display technology, adopts a basic technology route similar to mainstream LED illumination and display blue light plus fluorescent materials, creatively invented a remote rotating fluorescent device, and cleverly solved the problem of fluorescence conversion heat quenching, in high-density laser Excited, it still maintains high conversion efficiency. At the same time, the use of GaN blue laser and YAG and nitride fluorescent materials effectively extends the advantages of high reliability and long life of the LED. The ALPDTM laser source also has the advantages of the traditional LED and solves the shortcomings of both. It has become a new type of light source and has become a major breakthrough in the history of laser sources.
Trichromatic laser source technology principle
The three-primary pure laser technology is considered by the industry as the most pure laser light source. It has the advantages of rich colors and high color saturation. It can be the most abundant, most vivid and truest color in the natural world, and has become a major technological development direction in the field of laser display technology. At present, projection equipment using three primary-color pure laser light sources has penetrated into analog simulation, exhibition display, conference center, outdoor curtain wall, digital cinema, home theater and other fields, and has great development space and broad application prospects.