How does the LED display wall achieve seamless splicing?

At this stage, due to the led video wall improvement of monitoring technology and data collection ability in China, it is very important to show whether the terminal can accurately present the collected data on the led display wall in time, which is directly related to the rationality of decision-making of higher authorities. In order to meet the needs of the market, technicians improved the company’s original technology splicing technology, making it seamless, high-definition direction of development, and then, seamless splicing LED display panel came into being.

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Seamless stitching technology is a special and demanding projection display application, which can realize the fusion of multi-screen images and reduce the stitching gap to the minimum so as to completely coincide with the stitching technology. Seamless stitching technology not only requires a complete super large screen, but also has special requirements for projection of super large screen. The biggest difference between seamless splicing technology and BSV liquid crystal splicing technology lies in the small gap.
1. Solve thoroughly the visual defect of splicing large screen images and realize complete seamlessness.
Throughout the large screen stitching system in our country at present, there are still many stitching seams in the work of many display screens. For example, LCD splicing system, the gap is too large to meet the needs of users; and plasma and back projection large screen splicing system has more advantages than liquid splicing technology, but from its visual effect, there are still a large number of segmentation lines. Even if LCD, DLP and PDP technology are applied in engineering, the gap can only be reduced, but can not be completely eliminated. Seamless LED splicing technology can completely solve the problem of screen segmentation and achieve the requirement of seamless.
Using seamless LED splicing technology, the screen resolution can be improved in a smaller area, ensuring the texture of the screen, and meeting the needs of users to watch at close range. Compared with the existing splicing technology, the physical seamless splicing of LED can achieve cross-screen display. For joints, the level of seams is not the size of seams, but the existence of seams.
2. Solve thoroughly the problem of inconsistent brightness and chroma attenuation of spliced large screen
The application of seamless LED splicing technology will effectively deal with the situation of different brightness and chroma attenuation of splicing large screen. In this technology, the point-by-point brightness and chroma correction technology is generally used, which ensures the unity of brightness and chroma. For example, the application of point control technology creates a platform for users to correct the chroma and brightness point by point, and controls the pixels of the screen to achieve the height restoration of the image. This technology also has the function of short message and prompt, which enables users to grasp the status information of the splicing wall in time.

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In recent years, with the gradual maturity of small space LED display technology and market, its application in the field of indoor large screen splicing is more and more common. Especially with the rapid development of smart city and security industry, the demand for large indoor screens in various cities is increasing, and small space LED products are also popular. Although the current price of small space products is high, mainly concentrated in the high-end market, but in the high-speed growth momentum of small space and the gradual downward trend of price, it still brings a lot of pressure to the traditional indoor large screen splicing products LCD and DLP. What are the characteristics of small space led, LCD and DLP products?

The performance of small space LED display is very eye-catching. Due to the fundamental difference of light-emitting principle and structure, small spacing LED display products can not only achieve seamless splicing, but also have a very wide color gamut and excellent color performance. These are not comparable to DLP and LCD, and have fast response speed, no ghosting, shadowing and other problems, which is almost a rewriting of the previous indoor large screen.
DLP splicing screen
DLP was stable. In terms of splicing gap and mirror reflection, it performs better than LCD, but it can not be compared with small spacing; In terms of resolution and heat generation, it is not as good as liquid crystal display, but also better than small spacing. Generally speaking, DLP is “moderate” in overall performance, and basically performs well except for the bottom brightness.
LCD splicing screen
The advantages and disadvantages of LCD are also obvious. The biggest disadvantage is that the stitching gap is too large. Even the 1.8mm stitching seam is visible to the naked eye, which has an impact on the overall visual performance. Secondly, the picture is greatly affected by the external light, and the problem of easy reflection also needs to be solved. However, it still has great advantages in resolution, heat generation, maintenance, etc., and indoor display does not require high brightness, coupled with low price and low maintenance cost, LCD still has obvious advantages in indoor display, becoming the mainstay of large screen splicing market.
Over the past two years, small spacing LED display products have been widely popular in the field of high-end large screen. Whether it is displayed at various summit meetings, on-site press conferences, or in large command centers or other fields, it is the first choice, and even begins to enter the cinema as a movie screen. These are undoubtedly based on the display effect of small space products, such as good picture integrity and strong color expression. But before we are excited about this, we still need to focus on the application of small space LED display screen in the indoor, which also has obvious defects.

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