How about the small-pitch LED display video processor technology? LED display technology is also constantly developing, bringing all kinds of convenience to our lives, providing us with a variety of life information, and benefiting us mankind. As the display area of LED small-pitch products becomes larger and larger, projects of tens of square meters are not uncommon. The physical resolution of LED displays tends to exceed 1920×1200, that is, each ultra-large-scale LED display consists of several It is composed of several independent display areas driven by one LED controller. For splicer applications, it only needs to provide several DVI output interfaces corresponding to the number of LED controllers, and splice and display the entire LED screen. In the application of splicers in small-pitch LED displays, there are several key technologies worthy of attention.

   Signal output synchronization

   The multi-channel DVI signal output of the video processor must have the problem of signal synchronization. When the unsynchronized signal is output to the LED display, the picture tearing phenomenon will appear at the splicing place, which is especially obvious when playing high-speed moving images. How to ensure the output synchronization of the signal 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 effect is good. After the reduced image, if only ordinary graphics processing technology or general FPGA graphics processing algorithms are used, the edges of the image will appear jagged, and even pixels will be missing. The brightness will also decrease. High-end image processing chips or FPGA systems using complex graphics processing algorithms will maximize the display effect of the reduced image. Therefore, a good graphics processing algorithm is a key technology for splicers applied to small-pitch LED display screens.

   Non-standard resolution output

   The small-pitch LED display is composed of a matrix of display units of the same specification. The size and physical resolution of each display unit are fixed, but the spliced entire large screen is often not a standard physical resolution. For example, the resolution of the display unit is 128×96, which can only spell 1920×1152, but it cannot spell 1920×1080.

   In a super large-scale splicing system, the LED display area driven by each LED controller may not be of standard resolution. At this time, it is critical that the splicer has a non-standard resolution output, which can help us quickly find a suitable one. The splicing method can allocate resources reasonably and effectively save the number of LED controllers and transmission equipment. The above is the relevant knowledge of LED technology. I believe that with the development of science and technology, the future LED lights will become more and more efficient, and the service life will be greatly improved, which will bring us greater convenience.