How to buy a cost effective home laser projector in 2023?Mainly look at these parameters!

Mondo Digital Updated on 2024-01-29

Compared with TVs, home smart projectors can provide large screens, immersive sound, and can cover a variety of home entertainment projects,**Relatively lower,And the body is small and portable,Much more convenient than TVs,More cost-effective。 However,Now there are more and more home projection products,Different parameters and different functions are dazzling。 I believe that many friends don't know how to choose a cost-effective projector.

In fact,Buying a home smart projector is not complicated,You only need to figure out the five parameters and a technology,You can become a projector expert So,Next, I will explain in detail how to look at the projector parameters so that you will not step on the pit!

First, the five parameters of the projector

Choosing a projection is actually choosing the picture quality. The quality of a projection is the result of a combination of parameters. Among them, the most critical parameters are: brightness, uniformity, color gamut, contrast, and resolution.

1. Brightness: CVIA lumens ANSI lumens

It refers to the intensity of light emitted by the projected image, which is usually expressed in ANSI CVIA, and represents the amount of light emitted by the light source in a unit of time. The higher the value, the higher the energy of the projected light, the brighter the projected image, and the less likely it is to be limited by ambient light.

Different brands have different standards for projector brightness labeling, including ANSI lumens, CVIA lumens, etc.

ANSI is a projector luminance measurement method developed by the National Institute for Standardization, if you want to pull the curtains during the day to get a clear projection picture, then the brightness must reach at least 2000 ANSI lumens and above. CVIAhe team standard led by the China Electronic Video Association,Nuts、Dangbei and other domestic head enterprises participate,It is a standard recognized and jointly supervised by the whole industry,Measurement requirements are stricter than ANSI,At present, domestic head projector brands have enabled this measurement standard。

2. Color gamut: BT2020>dci-p3>rec.709

It refers to the range of color gamut that can be displayed in the projection screen. The wider the color gamut, the more comprehensive the color types displayed, the richer the color of the picture, and the higher the degree of restoration of the source film.

rec.709 is the color standard of high-definition TV, and DCI-P3 is the color gamut of digital cinema, which generally pays more attention to visual impact than color comprehensiveness. bt.2020 is the HDR color gamut with a wider color space. At present, only the display equipment using three-color laser technology can cover100% and above,Projectors and TVs with other light source technologies are difficult to do,Top OLEDThe TV can only cover80。

3. Contrast & Picture Uniformity: The larger the value, the better

Contrast refers to the ratio of black and white colors in the projection screen, representing the degree of light and dark gradient of the projector. The higher the contrast, the more gradation levels of the projection image quality from black to white, the richer the color performance, and the obvious advantages in the detail performance, clarity, and dynamic light and dark conversion performance of some dark scenes. At present, the projector contrast has been improved from the early 400:1 to 1600:1 or even higher,Nut O2 Ultra short throw laser projection contrast has been as high as 2800:1。

The picture uniformity of the projector refers to the difference between the brightest part of the screen and the darkest part of the value,Normally,The greater the numerical difference in the image uniformity,It means that the projection screen is more uniform,It is easier for users to get a visual experience with consistent picture brightness when **。

4. Resolution: 4k 1080p 720p

Everyone is certainly no stranger to resolution, and daily looks like 480p, 720p, 1080p and other values. The higher the value, the higher the definition and the better the texture. Usually 480p belongs to SD, 720p and 1080p belong to HD, and only 2K 4K belongs to Ultra HD. If you want to have a better picture quality experience, look for 4K projection.

5. DMD chip: 047dmd>0.33dmd>0.23dmd

The larger the DMD chip size, the higher the resolution and the clearer the picture. In general: 0The 47DMD chip can accommodate 4K 1080p resolution, 0The 33DMD chip can accommodate 1080 true 720 resolution, 0The 23DMD chip accommodates the Jitter 720 True 560 resolution. Jitter 4K resolution refers to the rapid jitter of the display chip through XPR jitter technology to achieve 3840*2160 resolution, that is, 4K image quality effect.

Second, the light source technology of the projector

In fact, four of the five parameters are related to the light source technology, thereforeThe most fundamental factor that determines the quality of a projection image is the light source technology。Other parameters can be stacked, and the light source technology "affects the whole body".

The light source of home projectors is mainly divided into bulbs, LEDs and laser light sources. The advantage of using a projector with a bulb is that the brightness is high enough, ** cheap, but the service life of the bulb is too short, and the volume and noise are large, which is not suitable for home use;The advantages of LED light source projection are color balance, long life, and cheap, so most projectors on the market use LED light source. But the brightness is insufficient, generally concentrated between 1000-2000ANSI.

And the laser hasGood monochromaticity, strong directionality, good coherence, and high brightnessand other advantages, used in projection display equipment, can make the projection screen brighter higher, wider color gamut, better contrast, better picture quality, and gradually become the best choice for home projector display technology at present and in the future, the future can be expected.

At present, there are three types of laser light sources used in projectors: three-color laser, monochrome laser and mixed light.

Three-color laserIt uses red, green, and blue three-color lasers to emit light independently, and emits extremely pure light by adjusting the appropriate wavelength, and then performs combined light imaging. Due to the high purity of light, wide color gamut and high contrast, the brightness can easily exceed 3000ANSI lumens, which is more than 2-3 times that of LED light source and monochrome laser. Xu Zuyan, academician of the Chinese Academy of Engineering, believes that three-color laser technology is the best and is the mainstream of the next generation of display technology. At present, many high-end flagship display devices focus on three-color lasers, because of their mature and advanced technology and excellent performance.

In the past, three-color lasers had the pain points of high cost and large volume, but now they have been solved one by one. For example, the Malc Krypton three-color laser light machine independently developed by nuts fundamentally solves the problem, making the three-color laser smaller and the cost lower, and you can enjoy the ultimate viewing experience brought by high-end technology at a price of three or four thousand.

Regarding the "speckle theory" put forward by individual netizens, there are also technical overcomes. For example, nut projection has its first LR dynamic speckle dissipation technology, which achieves 97% speckle elimination, making the picture more pure and delicate, and the naked eye has no speckle sensation, and the perception is effectively improved.

Under the popular science here, speckle (similar to the frosted feeling of the picture) is a physical phenomenon of reflected light, which will occur in daily life. Due to the high purity of the three-color laser light and the small divergence angle, the speckle is felt by the naked eye. Many competing products make a big fuss about speckle and try to bury the good technology of three-color laser, which is not advisable.

Monochromatic laserIt is a single blue laser that first excites red and green fluorescence on the fluorescence color wheel, and then synthesizes white light, and then homogenizes and imaging. Its advantage is that the brightness is relatively high, which is much stronger than the LED light source. Due to the use of a single blue light and the existence of a fluorescent color wheel, the laser purity is destroyed, resulting in insufficient color gamut coverage, low color accuracy, and the picture is prone to color cast.

In order to solve the problem of color cast, projection manufacturers have thought of it againLight mixing technology with monochrome laser + panchromatic LEDto achieve brightness enhancement and color equalization. There is an effect but not much, because the light mixing technology itself is still based on LED, and the laser is used to make up for the missing two-color light, the light source power is insufficient, and the color performance of the picture is not good. Moreover, the LED light source is prone to the decay of the lamp pearl, excessive power consumption, and hot heat in high-intensity operation, which greatly affects the life of the product.

To sum up,From the point of view of image quality performance, three-color laser mixed light technology monochrome laser. Three-color laser projection is preferred at the same price. Below I recommend a few high-end home laser projectors with good performance, for reference only

[Home laser projector].

Nut N1S Pro

The appearance of Nut N1S Pro adopts Nut's unique integrated gimbal design, which supports 360° left and right rotation, 135° up and down tilt adjustment, and the projection angle adjustment is free and flexible, whether it is on the wall or the ceiling, it can be projected, explaining the happiness of lying flat and watching movies. With the gimbal image correction function, it can follow the vertical angle of the gimbal and the rotation angle of the base, complete the picture correction and focus in real time, and adapt to various tricky projection angles.

Using MALC three-color laser light machine, the color gamut is as high as 110% BT 2020, the contrast ratio reaches 1600:1, the dark details are brilliant, and the color performance is excellent. The brightness has 2000CVIA lumens, the picture uniformity reaches 95%, and the picture quality is comparable to that of a theater, so you can watch movies comfortably during the day. It is equipped with 047DMD display chip, resolution to 4K, more high-definition and delicate. At the price of 6k, the three-color laser + 4K scheme is achieved, and the image quality performance is spiked against other light source projectors at the same price.

DangbeiX5 Pro

DangbeiX5 ProUsingALPDThe cinema laser technology,It is monochrome laser technology,It has been achieved2450CVIALifensity,While maintaining high brightness,It is inevitable that there will be a color shift problem in the picture。 It is equipped with 047DMD display chip, 4K ultra-high-definition resolution picture is clear and real. Equipped with the flagship MT9679 chip, it provides rich decoding and image quality enhancement functions, and is equipped with a combination of 4+128G RAM+ROM for high smoothness. The hardware parameters are good, but the light source technology is a little worse, and it would be better if it could be upgraded to three-color laser technology.

Nut N1S Ultra

The Nut N1S Ultra is known as the king of projectors, with strong performance and outstanding strength. Equipped with MalC KryptonTM three-color laser light machine, LSR dynamic speckle removal technology realizes more than 97% of the speckle elimination of the picture, and the picture is more delicate and transparent.

With a brightness of up to 3000CVIA, industry-wide picture uniformity, and ultra-wide color gamut and contrast, the brightness and color are excellent, and the picture effect can be clear and true at any time of the day, completely free from the influence of ambient light. Ultra-clear 4K picture quality, whether it is a high-definition movie, playing a game or showing a high-resolution one, it can restore the details and colors of the picture to the extreme, presenting a realistic picture effect.

It adopts an integrated gimbal design, which can achieve 360° rotation and 135° up and down pitch adjustment, as long as there is a blank wall, you can easily enjoy the viewing experience of the large screen, and all kinds of perspectives can be satisfied, lying and sitting happily watching the movie. The damping feeling is silky, and it can achieve stepless rotation and hovering effect, without the need to manually adjust and fix the projection angle. It is also equipped with a gimbal-style real-time picture correction function, which intelligently tracks the dynamics of the fuselage, millisecond-level correction and focusing the picture, providing stable support for the output effect of the picture.

Using Dynaudio HIFI sound quality, enjoy flagship-level sound quality, the ultimate dive 45Hz ultra-bass to feel the bass texture, dual 10W high-power speaker design makes the sound quality more penetrating. Equipped with the top flagship chip MT9679, powerful performance, and with the Bonfire OS system, the operation is smooth and simple, the interactive function is more intelligent, more humanized, and adapts to the projection screen, giving users a more comfortable operation experience.

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