Application of video processor in full color LED display

In general, LED video processors are LED-specific video processors. And the task it needs to accomplish, in simple terms, is to convert the image signal from the outside into a signal that the LED display can accept. In this process, LED video processors generally need to complete the following processes:

First, the resolution specification conversion: In general, the image signal source (such as Blu-ray DVD, computer, HD player box, etc.) provides a fixed resolution of the signal resolution (refer to VESA, ITU, SMPTE, etc.), and led display The modular splicing display of the screen allows the resolution to be almost any value. The video processor converts a wide variety of signal resolutions into the actual physical display resolution of the led display.

Second, color space conversion: LED display color gamut is very wide, and the color space of most image signals are relatively small (such as NTSC). In order for the LED display to have an excellent image display effect, color space conversion is necessary.

Third, the bit depth is improved: 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.

4. Zoom: During the resolution specification conversion process, the image needs to be scaled. Whether the resolution is increased or decreased, the complete image can be displayed on the screen.

V. 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, qACC2, 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.