The large-screen splicing wall has only entered the public eye. At the same time, social and economic development has effectively stimulated the demand for public infrastructure construction. Large-screen and large-screen video walls have been developed in the Chinese market for more than ten years. At the beginning of its development, due to the influence of many factors such as technology and cost, the application of large-screen video walls was once limited to professional industries such as electric power and water conservancy. With the successive holding of large-scale events such as the Olympic Games, World Expo and Asian Games, large-screen splicing technology has begun to be widely used in various competitions, exhibitions and activities. and an indispensable product for monitoring command centers.

There are many brands in the large-screen splicing market, coupled with the lack of unified industry standards, many users are the main force in the DLP wall, and are widely used in major mid-to-high-end markets. Facing such a hot market with super potential, many manufacturers are also They have joined them one after another, resulting in the choice of splicing is impossible to start.

High-definition picture display

As a professional display terminal, high-definition screen display is a necessary condition, and it is also the most intuitive selection condition for users to choose products. The quality of the picture is mainly determined by factors such as brightness, resolution, and color gamut.

1. Brightness and resolution should be enough, but don't blindly seek high

In theory, the higher the brightness, the sharper the image. In order to ensure the picture quality, the user should ensure that the brightness of the large screen should be above 800-1200 ANSI lumens when selecting products. At the same time, users should not blindly pursue high brightness when choosing, so as to avoid unnecessary waste. Generally speaking, 15,000 lumens is enough to meet the viewing needs of the audience for very large venue applications.

For the large screen of the DLP splicing TV wall, the resolution is the guarantee of the performance of the details of the picture. If the picture is too low, the image will be distorted. Under normal circumstances, the resolution should be above XGA (1024×768) to achieve better results. for

2. Wide color gamut ensures vivid color of the picture

The richness of the color range of DLP technology can restore 350 trillion pigments, which is eight times that of ordinary film projection technology. This is also the fundamental reason why DLP projection display technology can give rich black levels and shadow effects compared with all other display technologies, and it is also the direct reason why users choose DLP video wall.

The uniformity of the three primary colors in the wide color gamut of the LED light source makes the color of the picture real and natural. At the same time, with Juyang's original subtle color adjustment technology, it can not only adjust the seven primary colors of R, G, B, C, M, Y, and W independently, but also simulate various complex mixed color and transition color display modes. The joint adjustment of the base color mix and match has greatly exerted the LED LED series splicing TV wall. In order to maintain this advantage, the color aspect has always been the focus of the manufacturer's research and development. For example, GQY-DLP splicing a large screen of a TV wall can realize the standardization of color adjustment, so as to achieve the same basic color red, green, blue and brightness of each unit, 100% white brightness of each unit, 50% or 30% brightness of each unit, and other gray The gradation is basically the same, and the synthetic color is basically the same, thus effectively ensuring the color saturation. The newly launched V trichromatic light source not only directly provides red, green and blue trichromatic light for the optomechanical, but also does not need a color separation wheel to filter and color the light source, avoiding the loss of brightness and color in this process. , and the unique ultra-wide color gamut dynamic color restoration technology solves the characteristics of light source color saturation and brightness stability compared with traditional equipment.

Reliable applicability

DLP splicing video wall large screen has always been an "aristocratic" application. Although the price has dropped with the improvement of technology, it is still a lot of investment for ordinary users. Therefore, the daily application of DLP large screen, such as stable use and easy maintenance, should be considered when users purchase.

1. Stability

As a professional display terminal, DLP large-screen video wall needs to run continuously for a long time, so the stability directly determines the use value. Usually, stability mainly includes color stability and running stability.

DLP large screen running for a long time will cause the defect of color desaturation, users should pay attention to it when purchasing.

Of course, with the increasingly perfect DLP technology, this problem has been solved accordingly. For example, Juyang's intelligent color temperature detection and correction technology and Vitron's multi-dimensional color independent adjustment technology are both good solutions.

The short lifespan of the light source of the DLP large screen has always been an obstacle to its stable operation. Today, the application of LED light sources has fundamentally solved this problem. The service life of the LED light source can reach 60,000 hours, which effectively avoids the trouble caused to users by frequent replacement of the bulb. At present, the VLED launched by Juyang and the VisionproV3L of Vitron are both brand-new LED light source products. It is worth mentioning that, in view of the shortage of traditional DLP large screen damage caused by sudden power failure, Juyang VLED adopts a dedicated redundant hot backup power supply, which effectively ensures the normal operation of the large screen.

2. Easy maintenance

Most users do not know the structure of the DLP large screen, and the maintenance of the large screen is highly professional. Therefore, users must pay attention to the simplicity of maintenance when purchasing products to avoid the cumbersome daily use.

For DLP large screens, the main daily maintenance work is dust prevention, and this is the technical difficulty that various manufacturers have been working hard to overcome. The entry of dust will seriously affect the use effect of the large screen, resulting in blurred picture, poor heat dissipation, and even burns on the large screen in severe cases. The dustproof effect of the large screen should be an important factor for users to consider.

At present, with the application and promotion of LED light source, DLP splicing TV wall large screen dustproof has also made a new breakthrough. The fixed use of the light source ensures the airtightness of the large screen and fundamentally blocks the source of dust. Many manufacturers have launched mature products. For example, the multiple dust-proof structures of the Visionpro V3L display unit and the opto-mechanical modular air-tight and dust-proof design of the Juyang VLED light source splicing video wall unit make the unit dust-proof level reach IP5X level.

Focus on "face" issues

The screen in the large-screen video wall system can be said to be the "face" of the entire system, and its importance cannot be underestimated. In the production process, due to the imperfection of the screen production process, it is easy to cause the phenomenon of light leakage around the screen: the specific performance is that when the image signal is 100% completely white, bright spots or sections of bright spots can be seen around the screen. Lines have a greater impact on the visual effect. Users should pay attention to testing in the purchase process.

The materials used for rear-projection splicing large screens are divided into two categories: resin and glass. Large screens made of resin materials are easily affected by temperature and are easily deformed. Therefore, users should fully consider their own use environment when purchasing. For the moisture and corrosion resistance of large screens, the industry has also taken corresponding measures. For example, the box of Juyang DLP large screen adopts ODE oxidation spraying process, which can be applied to a variety of complex environments. In addition, the current DLP

The joint effect of the large-screen splicing TV wall and the different production and installation processes will make the joint effect of the entire large-screen splicing TV wall very different, which leads to the saying of physical joint and optical joint. In fact, whether it is a physical or optical seam, as long as it is the black edge formed by the edge that the light cannot reach, it should be the actual seam of the video wall. The ideal seam should be a thin and even black line. The larger the seam, the more the edge information of the image will be lost. Users should pay attention when choosing products.