Number of views：2151order Release Date：2020-11-26

With the development of the high-tech era, the use of LCD splicing displays is becoming more and more widespread. However, due to users' lack of understanding of the internal structure of LCD splicing screens, the questions presented during the use of LCD splicing walls are also increasing. One of the common questions is that the black color of the display screen is not well controlled. How should we handle it ultimately? In fact, it can be easily done with just five moves. This article will provide you with a specific introduction.

1： Check if the graphics card is overclocking excessively. If the graphics card is excessively overclocked, it usually presents irregular and continuous horizontal stripes. At this point, the overclocking fluctuations should be appropriately reduced. Note that the first step is to reduce the video memory frequency.

2： Check if the connection between the LCD splicing screen and the graphics card is loose. Poor contact can lead to the appearance of "clutter" and "dots" on flower screens, which are the most common symptoms.

3： Check if the resolution or refresh rate of the LCD splicing screen is set too high. The resolution of LCD splicing screens is usually lower than that of CRT monitors. If it exceeds the manufacturer's recommended optimal resolution, it may present a blurred screen appearance.

4： Check if an incompatible graphics card driver has been installed. This situation is often overlooked simply because the update speed of graphics card drivers is getting faster and faster (especially NVIDIA graphics cards), and some users always urgently install the latest version of other drivers. In fact, some of the latest drivers are either test versions or optimized versions for a specific graphics card or game, and using such drivers may sometimes result in screen distortion. So, it is recommended that we use Microsoft certified drivers as much as possible and preferably use drivers provided by graphics card manufacturers.

5： Check the quality of the LCD splicing screen graphics card. If there is a problem of screen distortion after replacing the graphics card, and if the previous methods do not work, you should check whether the graphics card's anti electromagnetic interference and electromagnetic shielding quality is up to standard. The specific method is to keep some components that may cause electromagnetic interference as far away as possible from the graphics card device (such as a hard drive), and then check if the screen is missing. If it is determined that the electromagnetic shielding function of the graphics card is not up to standard, the graphics card should be replaced or the shielding cover should be removed.