LCD video walls have become a popular solution for large-screen displays in commercial settings, despite the fact that they often have visible seams between the individual LCD panels that make up the display. So why are LCD video walls still commonly used despite this visible seam issue?

To understand why it's important first to understand how an LCD video wall works. An LCD video wall comprises multiple LCD panels arranged in a grid pattern to form a single large-screen display. 

After multiple LCD screens form a video wall, use the video wall controller to connect computers or other input sources, and then output and connect these LCD screens one by one, and finally make a single large screen composed of LCD screens display the input source. At this time, as multiple screens are playing a single image, the total resolution of the image is as high as the screen can go (provided the video wall controller supports this resolution)

Despite this visible seam, LCD video walls are still a popular choice for commercial displays for several reasons:

Cost-effectiveness: LCD video walls are a cost-effective solution compared to other large-screen display options, such as direct-view LED walls. The cost of LCD panels has decreased significantly in recent years, making them a more affordable option for many commercial applications.

Easy to install and maintain: LCD video walls are relatively easy to install and maintain compared to other large-screen display solutions. The individual panels can be mounted on a wall or other structure, and can be easily replaced if necessary.

Flexibility in terms of size and shape: LCD video walls can be customized to fit almost any size or shape, making them a flexible solution for a variety of commercial applications.

High color accuracy and brightness: LCD video walls provide high color accuracy and brightness, making them a good choice for applications where color accuracy and brightness are important.

Improved technology: Advances in LCD technology have led to thinner panels and smaller gaps between panels, reducing the visibility of seams. Additionally, advances in video wall controllers have made it possible to adjust the color and brightness of individual panels to further minimize the visibility of seams.

In conclusion, despite the visible seams that can sometimes be seen in LCD video walls, they are still a popular solution for large-screen displays in commercial settings. This is due to their cost-effectiveness, ease of installation and maintenance, flexibility, high color accuracy and brightness, and improved technology. With advances in technology and the continued decrease in cost, it's likely that LCD video walls will continue to be a popular choice for commercial displays in the future.