The LED video processor did great help to the development of the LED wall, so, Why video processor is needed for LED video walls?
The LED video processor`s quality would directly affect the full-color LED display`s performance. Overall, an LED video processor is customized for the LED display. What it needs to complete the task, simply put, is to convert the external images into the signal (such as Blu-ray DVD, computer, high-definition playback boxes, etc.) that the full color LED display can accept.
LED video processor`s function to the LED display shown as below:
1、Screen zoom:
The displaying method of full-color LED display is the point to point, which determines the full-color LED display can only be resolved with its own physical picture of the same size. LED video processor can be scaled to any size, the screen output to complete the entire desktop screen led mapped onto the screen. Either increase or decrease the resolution, you can make a complete display of images on the screen.
2、Specifications Resolution Conversion:
In general, the image signal source (such as Blu-ray DVD, computer, high-definition playback boxes, etc.) provides the signal resolution with fixed specification (Reference VESA, ITU, SMPTE and other standards), and full color LED display is modular splicing display, so that it can be almost any resolution value. Video processor will signal resolution is converted to a variety of physical full-color LED display resolution.
3、Signal conversion and switching:
Video processing equipment can complete the format conversion of many signals. A video processor Another important feature is that when there is multiple signal access, and manage a variety of signals, the flexibility to quickly switch between the signals from various quarters.
4、Improve the image quality:
Digital image processing technology from the 1920s to the present, there has been a large number of patented technologies. For example DCDi, ACC2, ACM3D and other Emmy award-winning Faroudja Laboratories series of patented technology. These technologies will undoubtedly make the visual effect has been greatly improved. LED full-color pixel pitch itself is much larger than some of the other flat panel display media, and therefore, the image processing technology, especially the image enhancement technology has strict requirements. Quality LED video processor is able to use advanced algorithms for image quality is poor signal may be modified to perform de-interlacing, edge sharpening, so a series of motion compensation processing to enhance image detail, improve the picture quality.
5、Huge screen splicing:
Currently, full-color LED display`s pixel pitch is smaller and smaller, more and more dimensions of the giant, so that makes the physical screen resolution LED screen to become very large. LED video processor with stitching, capable of driving large resolution screens, after all, a very cost-effective way to drive.
6、multiple image handling:
Under many scenes, a special display needs to show the same or different signals of a plurality of images with multi-screen video processor processing functions, the flexibility to meet the requirements of such a display.
7、Upgrading the bit depth:
Current LED full-color gradation has been upgraded to 16-bit, 17-bit, but the majority of the input signal source is only 8 bits. Thus, following the footsteps of the high-definition display era, 10-bit or 12-bit processing technology in the video processor is a general trend.
8、Color space conversion:
Led display color gamut is very wide, but the majority of the image signal color space is relatively small (such as NTSC). In order to make a full-color LED display has excellent image must be color space conversion.
