Dozens of square meters of projects are common, the physical resolution of the LED display will often exceed 1920 × 1200, that is, each super large-scale LED display, are driven by a number of LED controllers of a number of independent display area composed of a number of LED controllers, for the application of splicer, you only need to correspond to the number of LED controllers to provide a number of DVI output interfaces, and the entire LED screen can be spliced display. Splicer in the application of small pitch LED display, there are several key technologies worth paying attention to.
　　Signal output synchronization
　　Multiple DVI signal output of the video processor, there is bound to be a signal synchronization problem. Unsynchronized signal output to the LED display, the splicing will appear in the picture tearing phenomenon, especially obvious in the playback of high-speed movement of the image. How to ensure the synchronization of the signal output has become the key to measuring the success or failure of a splicing system.
　　Graphics Processing Algorithm
　　We know that the point-to-point image display is the best, after shrinking the image, if only ordinary graphics processing technology or general FPGA graphics processing algorithms, the edges of the image will appear jagged, and even pixel missing, the brightness of the image will also decrease. And high-end image processing chips or FPGA systems utilizing complex graphics processing algorithms will maximize the display effect of the reduced image. Therefore, a good graphics processing algorithm is a key technology applied to the splicer of small pitch LED display.
　　Output of non-standard resolution
　　Small pitch LED display is a matrix splicing from a piece of the same specifications of the display unit, each display unit size and physical resolution is fixed, but splicing up the whole big screen, often not a standard physical resolution. For example, the resolution of the display unit is 128 × 96, can only be spliced into 1920 × 1152, but not 1920 × 1080.
　　In the ultra-large-scale splicing system, each LED controller driven by the LED display area may not be a standard resolution, this time, the splicer has a non-standard resolution output is critical, it can help us quickly find the right splicing method, so as to reasonably allocate resources, and effectively save the number of LED controllers and transmission equipment used. The above is the relevant knowledge of LED technology, I believe that with the development of science and technology, the future of the LED lights back more and more efficient, the service life will also be by a great enhancement, for us to bring greater convenience.