How To Choose Video Processor for LED Screen?
As the growing technological advances and big demand of video processor for LED screen, according to a report by Fortune Business Insight, the global LED video wall market is projected to reach US$ 36.16 billion by 2026, which in turn has given a boost to the need for LED video processors.
A good LED video processor provides more power and flexibility to deploy video walls. The following introduces the general functions of video processors, and the main factors to be considered when choosing a video processor.
The General Function of Video Processor for LED Screen
1.Scaling of the image
The display method of the LED screen is point-to-point, which determines the LED screen can only display pictures with the same size as their physical distinguishing sizes.
That’s the reason why need the video processor zooms the image, outputs the screen at any size, and completes the entire desktop map to the LED screen.
Whether the resolution is increased or reduced, the full image can be displayed on the screen.
In common LED display control systems( or LED control card), DVI/HDMI signals (such as computer graphics cards) are usually used to drive the LED display, but on many other actual occasions, other signals are in great demand, such as cameras, DVDs, monitors, and video or audio electronic equipment.
At this time, the LED video processor is needed to convert various signals into a signal that can directly drive the LED display.
Another important function of the processor is to manage various signals when there are multiple signals accessed, which flexibly switch between signals.
3. Improvement of image quality
Because the pixel pitch of the LED screen itself is much larger than other display panel media, it has strict requirements for image processing technology, especially image-enhanced technology.
High-quality LED video processors can use advanced algorithms to modify the signal of poor image quality, perform separation, edge sharpness, exercise compensation, etc. to enhance the image details and improve the quality of the screen.
At present, the spacing of the LED display is getting smaller and smaller, and the size of the shape is becoming more and more huge, so the physical resolution of the LED screen is very huge.
The LED video processor has a splicing function, which can drive a large-resolution screen without losing a very cost-effective driver.
4. Multi-screen processing
In many special scenarios, the LED screen needs to display multiple screens with the same or different signals. Video processors with multiple screen processing functions can flexibly meet such display requirements.
Main Factors When you Choose a Video Processor for LED Wall
1. Loading capacity
The maximum output resolution of the LED video processor is divided into multiple grades:
general: 1024X768,1280X1024,1440X900
HD: 1920X1080,2048X1152
Ultra-clear: 3840X1080,4096X1152,3840X2160,7680X1080
The maximum output resolution determines the capacity of the LED video processor
2.Format support
Common video signal formats: CVBS, DVI, VGA, YPbPr, S-Video, HDMI, SDI
Users need to select suitable models according to their actual situation.
For example, VDWALL SDI Module for LVP605/LVP605S.
3. Image enhancement
High-quality processors have good processing performance, and high-end processors have added many advanced processing algorithms, such as Super Resolution, KS KY-Correct, LED intelligent equilibrium, etc., to effectively improve the quality of the screen.
With the development of 4K/8K ultra-high-definition and small-pitch LED displays, the market’s demand for LED video processors has also increased and brings many challenges.
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4. Switching speed
The current video processor signal switching is mainly taken two ways: direct switching, fading into fading, and switching.
Some models support a variety of switching modes, and the price is higher. Direct switching methods are often used in the project.
The black screen time is extremely short or without the black screen during high-quality processors.
5. Multi-screen mode
At present, common video processors support dual-screen modes, but some scenes need to use three pictures, four pictures, and even more. Such models are much more expensive.
6. Brand
Foreign brands: Barco, Extron, TVONE
China brands: Kystar, VDWall, Createk, RGBLinK, Magnimage
7. All-in-one processor
Although there are a lot of advantages to LED video processors, people do not want to operate another box when installing a led display and one more problem is the high cost of a high-quality video processor.
As a result, the control system manufacturer also developed the all-in-one processor, combining the controller and processor into one box, which saves a lot of engineering time and cost. For example Novastar VX400S, VX4SN, Novastar VX1000, Xingwei X100, X200, etc.
| Xingwei Model | Loading capacity | Max resolution width/Height | Input | Output port(Ethernet port) |
| X100 | 1.3 Million | 1920/1080 | DVI*1,HDMI*1,CV*1,USB*1 | 2 |
| X200 | 2.3 Million | 1920/1080 | DVI*1,HDMI*1,CV*1,USB*1 | 4 |
| X2000 | 2.3 Million | 3840/1920 | DVI*1,HDMI*1,VGA*2,CV*1 | 4 |
| X8208 | 5.2 Million | 8192/4000 | DVI*1,HDMI4K*2,DP4K*1,VGA*1 | 8 |
| X8212 | 7.8 Million | 8192/4000 | DVI*1,HDMI4K*2,DP4K*1,VGA*1 | 12 |
| Novastar Model | Loading capacity | Max resolution width/Height | Input | Output port(Ethernet port) |
| VX400s | 2.3 Million | 3840/1920 | DVI*1,HDMI*1,VGA*2,CVBS*2,SDI*1,YPbPr*1 | 4 |
| VX4S-N | 2.3 Million | 3840/1920 | DVI*1,HDMI*1,VGA*1,CVBS*1,DP*1,3G-SDI*1 | 4 |
| VX600 | 3.9 Million | 10240/8192 | DVI*1,HDMI*2,3G-SDI*1,OPT1*1 | 6 |
| VX1000 | 6.5 Million | 10240/8192 | DVI*2,HDMI*2,3G-SDI*1,OPT1*1 | 10 |
For example: VX4S connector：
In conclusion, in pursuit of more vivid and realistic, lifelike images, and stunning visual experience, the high-advanced independent video processor is the trend; for people who are not in the video/film industry and not familiar with the processor, all in one video processor for LED screen is the best choice.