The development time of LED light source projectors is also very long, especially because of its small size, high portability, and simple use. At present, the performance of LED light source projectors has reached the high-definition level. The mainstream LED light source projectors are mainly hundreds of lumens high-definition projectors, which have been recognized by many users and bring great convenience for small businesses and personal entertainment. Since the imaging structure of the LED light source is simpler, the size and power consumption of the projector are effectively reduced, making the LED light source projector more portable. At the same time, the LED light source has a long life, generally around tens of thousands of hours, and its performance in color gamut is also outstanding.
However, brightness is the biggest drawback of LED light source projectors, and it is always difficult to break through. Because the technical bottleneck of the LED light source is still more obvious, the green LED has a lower luminous frequency, the heat dissipation problem is more prominent, and the cost is relatively expensive, so the bright LED mini projector has been difficult to appear.
The laser light source is arguably the most concerned projection light source in recent years. In the past two years, the laser pointer light source has gradually moved from the professional field to the field of daily life. As far as the current situation is concerned, whether it is the traditional business and education market, or the thriving engineering and home market, laser light sources have great potential. As yesterday, Mijia also set foot in the field of laser TV, launched a 150-inch laser TV product.
The reason why the laser light source is selected may be because the laser light source has the characteristics of large wavelength selectivity and high spectral brightness. It can synthesize the color gamut coverage of more than 90% of the natural colors seen by the human eye, and achieve perfect color reproduction. At the same time, the laser light source has ultra-high brightness and long service life, which greatly reduces the maintenance cost in the later stage. At the same time, the red laser pointer projector can be started almost instantaneously, reaching the working brightness instantaneously, so the laser light source projectors can all be seen to be turned on and off quickly. While the traditional light bulb needs to work for a period of time to reach a stable working temperature when it is turned on, it also takes a period of time to dissipate heat when it is turned off, and it is relatively time-consuming to switch on and off.
However, due to technical and cost issues, the cost of RGB tri-color lasers is too high. At present, the general pricing of laser light source products on the market is too high, and the popularity is not ideal. It is impossible to replace traditional light sources and LED light sources in the short term. However, the laser light source must be the inevitable trend of the future projection light source. With the continuous innovation of technology, the laser light source will soon be popularized in the projection industry, and the price will no longer be a problem that hinders the development of the industry.