The function of the video processor is simply to convert image signals from the outside (such as Blu-ray DVD, computer, HD player, etc.) into signals that the LED display can accept. In this process, LED video processors generally need to complete the following processes:
First, the depth of the increase
The current gray level of the LED display has been increased to 16 bits, 17 bits, however the input signal source is mostly only 8 bits. Therefore, following the arrival of the era of high-definition display, the application of 10-bit or even 12-bit processing technology in video processors has become an irresistible trend.
Second, the resolution specification conversion
In general, image signal sources (such as Blu-ray DVD, computer, HD player, etc.) provide a fixed resolution of the signal resolution (refer to VESA, ITU, SMPTE, etc.), and the modular display of the LED display, So that its resolution can be almost any value. The video processor converts a wide variety of signal resolutions into the actual physical display resolution of the LED display.
Third, zoom
During the resolution specification conversion process, the image needs to be scaled, and the full image can be displayed on the screen whether the resolution is increased or decreased.
Fourth, color space conversion
LED displays have a wide color gamut, while most image signals have a small color space (such as NTSC). In order for the LED display to have an excellent image display effect, color space conversion is necessary.
Fifth, image processing and enhancement technology
Digital image processing technology has developed from the 1920s to the present, and a large number of patented technologies have emerged. For example, DCDi, ACC2, ACM3D and other Emmy-winning Faroudja laboratories have a series of patented technologies. These techniques undoubtedly make the visual effect of the image greatly improved.

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