Application of video processor in full-color LED display

The video processor is the witness and symbolic device of the birth, growth and maturity of the full-color LED display. Today, the video processing equipment dedicated to LED is gradually becoming mature in this process. The advantages and disadvantages of the LED video processor directly affect the LED display. The display effect of the display. Generally speaking, the LED video processor is a dedicated video processor for LED. The task it needs to complete, in simple terms, is to convert the image signal from the outside (such as Blu-ray DVD, computer, high-definition player box, etc.) into a signal that the LED display can accept.

In this process, the LED video processor generally needs to complete the following processes: 1. Resolution specification conversion: Generally speaking, the signal resolution provided by the image signal source (such as Blu-ray DVD, computer, high-definition player box, etc.) has a fixed resolution. The specifications (refer to VESA, ITU, SMPTE and other standards), and the modular splicing display of the led display makes its resolution almost any value. The video processor converts various signal resolutions into the actual physical display resolution of the LED display. 2. Color space conversion: The color gamut of large LED screens is very wide, while the color space of most image signals is relatively small (such as NTSC).

In order to let the led display screen have excellent image display effect, color space conversion must be carried out. 3. Bit depth improvement: The gray level of the current LED display has been increased to 16 bits and 17 bits, but most of the input signal sources are only 8 bits. Therefore, following the footsteps 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. Scaling: In the conversion process of the resolution specification, the image needs to be scaled. Whether the resolution is increased or decreased, the complete image can be displayed on the screen. .