source:Industry Trends release time:2022-11-08 Hits: Popular:led screen wholesaler
With the increasing display area of LED small pitch products, dozens of square meters of projects are common, and the physical resolution of LED displays often exceeds 1920 × 1200, that is, each super large LED display screen is composed of several independent display areas driven by several LED controllers. For the application of splicer, it is only necessary to provide several DVI output interfaces corresponding to the number of LED controllers and splice the entire LED screen for display. Several key technologies of splicer in the application of small pitch LED display screen deserve attention.
Output synchronization of signal
The multi channel DVI signal output of video processor inevitably has the problem of signal synchronization. When the asynchronous signal is output to the LED display screen, the picture will tear at the splicing point, especially when playing high-speed moving images. How to ensure the output synchronization of signals becomes the key to measure the success of a splicing system.
Graphic processing algorithm
We know that the point to point image display effect is the best. If only the ordinary graphics processing technology or the general FPGA graphics processing algorithm is used for the reduced image, the edge of the image will appear sawtooth, even the pixel will be missing, and the brightness of the image will also drop. 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 the key technology of a splicer applied to small pitch LED displays.
Output of non-standard resolution
Small pitch LED displays are spliced from a matrix of display units of the same specification. The size and physical resolution of each display unit are fixed, but the whole large screen spliced together is often not a standard physical resolution. For example, the resolution of the display unit is 128 × 96, only 1920 × 1152, but can't spell 1920 × 1080。 In a large-scale splicing system, the LED display area driven by each LED controller may not be of standard resolution. At this time, the output of the splicer with non-standard resolution is critical. It can help us quickly find a suitable splicing method, so as to reasonably allocate resources and effectively save the use of LED controllers and transmission equipment.
The future development potential of LED glass transparent screen is unlimited
LED glass, also known as electrified light-emitting glass and electrically controlled light-emitting glass, is a high-tech product that embeds LED light sources into glass to form various patterns and patterns. It was first invented in Germany and successfully developed in China in 2006. LED glass is transparent, explosion-proof, waterproof, UV resistant and designable. It is mainly used in indoor and outdoor decoration, furniture design, lighting design, outdoor curtain wall glass, sunlight room design and other fields.
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