Large-screen LCD splicing debugging method correctly interpret

LCD splicing both individually as a monitor , they can assemble into large screen use . According to different needs and achieve big variable is also variable small Variety large screen features: a single split -screen display , single-screen alone, any combination of display , full-screen LCD stitching, double stitching LCD splicing screen , vertical screen display, image borders optional compensation or cover , support for digital signal roaming, zooming stretching, cross-screen display , a variety of plans to set up and run display , full HD signal real-time processing . LCD splicing is a complete finished product, ie, hang with , installation is as simple as building blocks , single or multiple LCD splicing are very simple to use and install . lcd module stitching around the edges only 9mm width , surface protective layer also with tempered glass , built-in smart temperature alarm circuit and the unique " fast casual" cooling system. Everything, not only adapt to the digital signal input , the analog signal support is also very unique . LCD splicing series of products using the world's most unique and cutting-edge digital processing technology, allowing users to truly experience the full HD screen effect .
So, so perfect large screen display system really that simple? Answer is no, how to properly debug LCD splicing screen is not as easy as people think .
Normally, LCD splicing system hardware installation does not have a lot of time is also relatively simple , and debugging more complex compared to the latter . Video wall system debugger, the image appears unclear. If the display is not satisfactory , especially in low light , blurred edges of the image (the source resolution is too high) stack aliasing interference fringe image sense ( or drop-frame ) , the result is: a liquid crystal mosaic image does not contain a clear phenomenon. Immediately to determine whether the product is not available. Image, control products, such as system , matrix switchers , splitters, signal transmission cable , transmission, processing and display display terminal , DVD, video cameras, computers , etc., etc. Displayed video source.
Exclude the need to pay attention to two points:
The first : to check the first question bear certain period of time , checks will be deleted once the issue is resolved , you can save time in other parts of the checks can be . First of all, one by one, the only way to form a terminal display resolution and signal source display resolution, not only for point to point , and if this problem is not solved, are excluded from all devices on it to verify the video signal , graphic lcd modules If you want to reach the end dependent on the adaptation or the display format can be greatly improved the brightness of the image , or replace the device's display terminal zoom you can increase conversion device such as the use of that change the nature of the signal , the video signal can be improved VGA video signal .
Second, please see the body to make the losses to a minimum standard distance range image and signal source impedance bandwidth between the matrix switcher. Finally, the focus and convergence of the display device is normal , the signal processing circuit is good. The most important are as follows. High ground , reliable, good line of construction , so that the signal ground , solid interface cables neatly separated , and the force and strict as power, signal lines, such as UPS, AC power connectors at both ends of the total number of tags and manage a simple test .
Analysis: according to the symptoms , if not synchronized , synchronous interface cable, and transmission equipment , control and display terminal synchronizing signal source frequency range of the inspection point. By analyzing the test time is too long, the picture is too small , ghost , transmission cables , to confirm whether it is a solution to increase the signal amplifier and other equipment, or lane changes . Concentrated bad, you can adjust the display terminal.