What are the reasons for the lack of synchronization in the LCD splicing screen display

Jun 11, 2021

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When we use the LCD splicing wall system software, if we want to prevent different conditions, we must use front{{0}}end development machinery and equipment that contains external synchronization keys, and all front-end development machinery and equipment use external synchronization methods, that is, from all walks of life. The synchronization of the image data signal is controlled by the same synchronization data signal, which promotes the display synchronization on the large-screen splicing screen. Generally speaking, the national standard of LCD requires that the input data signal strength of technical professional LCD splicing wall is 1Vp-P±3dB, and the input resistance is 75 ohm mother. Therefore, if the connected data signal is due to the attenuation coefficient of the cable, the characteristic impedance is not matched, or the BNC head of the transmission cable is made non-standard, etc., the input data signal strength is far less than 0.7pp, which is likely to cause image loss. The frame, itinerary, and other conditions are different.


If the frequency range of the LCD splicing wall is relatively wide, at this time, during the entire transmission process, the video stream is likely to be affected during the entire transmission process, thereby jeopardizing the image quality. The more serious impact is likely to cause image distortion, deformation, raceway, and itinerary arrangements. Therefore, during the entire installation process of the LCD splicing wall, the cable must be free of radio wave interference signals. It is possible to prevent situations such as frame loss on the interface of the liquid crystal display caused by the influence.


The difference or inaccuracy of the LCD splicing wall is mostly the problem of transmission machinery and equipment or the problem that the transmission machinery and equipment is affected. For example, the potential difference between the front-end development machinery and equipment, the operation of the server machinery and the intelligent terminal will also affect the potential difference. Video stream, Youse special display in detail said that it causes the image data signal to change or the image has a raceway. At this time, it may cause the input end to lead the way, and the common failure of inputting without image. Therefore, the installation staff also need to be more technical and experienced.


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