Led video processor is simply that will be from the external video, image signal resources into the led electronic screen can receive the signal. The main role is the following:
1, resolution specifications conversion and scaling: video, image signal source (computer, VCD, DVD, mp4, TV live set-top boxes and other high-definition video) to provide the signal resolution has a fixed specification (refer to VESA, ITU, SMPTE and other standards) , While the led display of the modular splicing display, making the resolution of the value is irregular. The video processor converts a wide variety of signal resolutions into the actual physical display resolution of the led display. At the same time in the resolution specifications conversion process, the need for scaling the image, than the led display screen resolution or small resolution, after processing the video processor, you can make the screen display a complete image.
2, video format conversion: As most of the current market, send the card input signal for the DVI interface, when the access signal for the CVBS (AV), HDMI, YPbPr, S-video, SDI, VGA and other signals, the video processor The above signal format is converted to a DVI signal that can be recognized by the transmit card.
3, gray scale upgrade: the current led display gray scale has been raised to 16 bits, 17 bits, but the input signal source is only 8 bits. Therefore, following the arrival of the high-definition display of the footsteps, 10-bit or even 12-bit processing technology in the application of video processors is the trend.
4, color conversion: led display color gamut is very wide (full color led screen screen nearly 10 million colors), and most of the image signal color space is relatively small. In order to let the led display has excellent image display, to be color conversion.
5, arbitrary signal source between the random switch: in the stage rental sites, usually to access a variety of signal sources (such as multiple live cameras, computers, etc.), at the same time between these sources continue to seamlessly switch to To achieve the effect of the stage.