Application interpretation of LED video processor in full color LED display screen

LED video processor is a special video signal processor for LED display screen. And the task it needs to complete, in short, is to come from the outside ( Such as Blu-ray DVD, computer, HD play box, etc) The image signal is converted into a signal that the LED display screen can accept. In this process, LED video processors generally need to complete the following processing processes: first, resolution specification conversion: Generally speaking, image signal sources ( Such as Blu-ray DVD, computer, HD play box, etc)The signal resolution provided has a fixed specification ( Refer to VESA, ITU, SMPTE, etc) , And the modular splicing display of the led display screen makes its resolution almost arbitrary. The LED video processor converts various signal resolutions into the actual physical display resolution of the led display screen. Second, color space conversion: LED display has a wide color gamut, while most Image signals have a relatively small color space (Such as NTSC). In order to make the led display screen have excellent image display effect, color space conversion must be carried out. 3. Bit depth improvement: at present, the gray level of led display screen has been improved to 16 bits and 17 bits, but most input signal sources are only 8 bits. Therefore, with the advent of the high-definition display era, the application of 10-bit or even 12-bit processing technology in video processors has become the general 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. 5. Image processing and enhancement technology: digital image processing technology has developed from the 1920s s to the present, and a large number of patented technologies have emerged. For example, DCDi, ACC2, ACM3D and a series of patented technologies of Faroudja laboratory, which won Emmy Awards. These technologies have undoubtedly greatly improved the visual effect of images.