With the rapid development of technology, the light source of smart projectors has also made earth-shaking progress. From the initial light bulb, it gradually transitioned to the popular LEDs, and at the same time, monochrome/two-color lasers and three-color laser projectors have been developed. In many people's impression, the rank of laser projectors seems to be higher than that of LEDs. In fact, the laser projector also depends on whether it is a single-color laser or a three-color laser light source projector. So, today's article is about telling you which of the three light sources is better and why three-color laser projectors are the future.
Mainstream is not the future:
For current smart projectors, there are more projectors that use LED light sources. LEDs are generally mainly used in several major fields such as lighting, backlights, and color screens. The LED light source used by the projector is customized to achieve high power LED light source. Three colors - red, green and blue, form the light source of the projector to achieve display effects of different colors. This technology is very mature, and many brands use LED light sources for mainstream smart projectors.
The reason for using LED light sources is relatively simple. On the one hand, the LED light sources are cheaper than lasers, and the current three-color red, green and blue LED light sources can cover the color gamut of sRGB. The mainstream LED projectors on the market basically reach more than 90% of the sRGB color gamut coverage, and some good quality can even reach 98%, which is more than most monochrome laser projectors.
However, although the projector of LED light source is good in terms of price and brightness, it cannot achieve its future identity, because in addition to the projector of LED light source, laser projectors seem to have more charm.
monochrome and three-color laser, why did three-color win?
For laser projectors, the light source of the laser projector is brighter, much brighter than that of the LED projector. It is basically no longer a product of the same level or platform. However, because the cost of laser projectors is relatively high, laser projectors are much higher than LED projectors in terms of price.
In the category of laser projectors, there are also monochrome laser projectors and trichrome laser projectors. The laser projector can set the red, green and blue three-color laser generators according to the light source requirements. The three-color laser light source can reach 100% BT.2020 color gamut coverage. However, laser projectors are not without criticism. For example, a single color laser uses a single blue laser to stimulate the yellow and green phosphor on the fluorescent color wheel, and then use prism to divide the three-color light, and finally realize other colors, and then purify it through filter to achieve the desired effect. But this method will lose some color elements and cannot achieve true color purity. If the brightness is high, the color of the three primary colors of will also be sacrificed. Therefore, some projectors for single-color laser light sources are not as effective as some three-color LED light sources.
If you want the best effect, you need a three-color laser projector to achieve it. Compared with monochrome laser light sources, the brightness and color of the three-color laser light sources are excellent. On the one hand, it has the advantages of three colors and also has the brightness of the laser. However, the tri-color projector will also have speckle problems, and there will be heavy images. To solve this problem, cinemas will use vibration elimination, but household laser projectors need to consider the cost, so they use light sources that reduce power to solve it. Although the methods are different, they all work.
Domestic brands should work hard to solve the problem?
Overall, the projector of the three-color laser light source is better than LED and monochrome laser. The current problem is that the price is too expensive, but there is still a problem of speckle among the few products on the market.
Of course, with the continuous efforts of major manufacturers, these problems will be solved one day. It is said that recently, brands will release projectors for three-color laser light sources, and they are domestic brands. But I don't know which one it is yet! Judging from the time of the brand release pace, can you guess which one will be?
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