Recently, many customers asked why the color LED display
has to use a video processor. It is no exaggeration to say that the quality of the video processor directly determines the display effect of the color LED display. Today, let's take the majority of users to have an in-depth understanding of this problem:
1. Motion compensation
Motion compensation for slow images and fast images. Good motion compensation technology can reduce the edge aliasing phenomenon of moving image when displaying color LED.
In order to reduce the bandwidth of video signal better, interlaced scanning technology must be used to improve the resolution. At this time, the color screen needs to preprocess the interlaced signal. Good to deal with interlacing technology and eliminate the tracing effect during live broadcasting and shooting.
Color screen usually adopts modular design and splicing display, because it is the most flexible display product among all flat panel display media. However, this product also has some disadvantages, that is, the flexibility will be slightly slowed down, especially the display resolution of each engineering application is difficult to find in the standard. Therefore, the video processor is especially required to provide scaling function.
4. Image zoom out
The lattice resolution of general display engineering applications is below 1024*768). The video processor is required to reduce the connected signals to the resolution of the corresponding terminal, and the video processing equipment is required to have the function of pixel by pixel scaling.
5. Image magnification
Due to the rapid development of more and more engineering applications, such as advertising, the resolution of color LED display is no longer limited to the conventional resolution, and some engineering applications have even reached the level of 2048 points. In such applications, video processors need to have image amplification processing technology, and the internal processing bandwidth of video processors can reach or exceed the lattice area in atypical applications.
6. Noise suppression
Due to the dot matrix characteristics of color LED display, the insignificant noise in other flat panel display media will greatly challenge the psychological tolerance of LED display audience. The noise mainly comes from the compression noise of the video signal and the random noise of the system itself. Excellent video processors can reduce the noise interference to the image quality to the greatest extent through noise suppression.