Recently, many customers have asked why full-color LED displays have to use video processors. It is not an exaggeration to say that the advantages and disadvantages of video processors directly determine the display effect of full-color LED displays. Today, Hewlett-Packard brings users to understand this issue in depth:
1, motion compensation
Motion compensation for slow and fast images. Good motion compensation technology can well reduce the edge jaggedness of moving images in full color LED display.
2, deinterlacing
The video signal is better to reduce the bandwidth, so to increase the resolution, it must use interlaced scanning technology. Full color screens now require preprocessed signals for interlaced signals. Good to deal with interlacing technology and eliminate the line drawing effect when live broadcasting and shooting.
3, zoom
Full color screens usually use modular design and splicing displays because it is the most flexible display product in all flat panel display media. However, this product also has some disadvantages, that is, the flexibility will be slightly slowed, especially the display resolution of each engineering application is difficult to find in the standard. Therefore, it is particularly necessary for the video processor to provide a zoom function.
4, the image is reduced
The screen resolution of the general display engineering application is below 1024*768). It is required that the video processor has the capability of reducing each of the accessed signals to the resolution of the corresponding terminal, and the video processing device is required to have a pixel-by-pixel scaling function.
5, the image is enlarged
As more and more applications are advancing rapidly in applications such as advertising, the resolution of full-color LED displays is no longer limited to conventional resolution. Some engineering applications even reach a level of 2048 points in these applications. Therefore, video processors are required to have image amplification processing technology, and the internal processing bandwidth of video processors can reach or exceed the dot area of ​​atypical applications.
6, noise suppression
Due to the dot matrix characteristics of full-color LED display, insignificant noise in other flat panel display media will greatly challenge the psychological tolerance of LED display audiences. The noise mainly comes from the compression noise of the video signal and the random noise of the system itself. The excellent video processor can suppress the noise and minimize the noise interference to the picture quality itself.
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