LED Video Wall Controller Everything You Need To Know

 The working principle of LED display is audio and video signals are sent out by PC terminal，after the video processing equipment processing, and then transmitted to the receiver card installed in the back of the LED display.

Receiving card based on the signal to drive the LED display to show the image.

LED video processor is also called screen processor, image converter, video controller, image processor screen converter, video format converter independent video source.

LED video processor is the key equipment of LED full-color display screen birth, growth and maturity, LED video processor directly affects the advantages and disadvantages of the LED display effect.

LED video processor and the display of the binding use, greatly facilitating the end-user wide range of applications, improve the depth of the use of LED display.

Full-color LED multi-screen video image processor is a national high-tech enterprises launched for the full-color LED high-performance image processing and control equipment.

The device integrates extensive experience in video image processing, high-definition signal processing and display.

Adopting patented technology hardware design, combined with the special requirements of the full-color LED screen display design.

It can accept and process many different video graphic signals at the same time and display them on the full-color LED screen display.

How does the LED video processor accomplish the perfect presentation of the display? It mainly includes the following points:

一、Picture scaling LED full color display is point to point, which determines the LED full color display can only display and its own physical resolution size consistent picture.

The led video processor can scale the image, the picture to any size output, complete the whole desktop mapping to the led screen screen.

Whether the resolution increases or decreases, can make the screen adoration on the display of the complete image.

二、Resolution specification conversion

Generally speaking, the image signal source (such as Blu-ray DVD, computer, high-definition playback box, etc.) to provide the signal fraction has a fixed specification (refer to VESA, ITU, SMPTE and other standards).

The LED full-color screen modular splicing display makes its resolution can be almost any value.

Video processor will be a variety of signal resolution converted to the actual physical display resolution of the LED full-color screen.

三、Signal Conversion and Switching

Video processing equipment is able to complete the format conversion between numerous signals.

Another important function of the video processor is to manage various signals when there are multiple signals accessed, and flexibly switch between the signals quickly.

四、Image Quality Improvement

Digital image processing technology from the 1920s to the present, there are a large number of patented technologies, such as DCDi, ACC2ACM3D and other Emmy Award-winning Faroudja laboratory of a series of patented technologies, these technologies undoubtedly make the visual effect of the image has been greatly improved.

LED full color screen itself has a pixel pitch much larger than some other flat panel display media.

Therefore, for image processing technology, especially the image enhancement technology has strict requirements, high quality led video processor can use advanced algorithms to image quality poor signal modification, the implementation of de-interlacing, edge sharpening, motion compensation and so on a series of processing, enhancement of image details, improve the quality of the screen.

五、Large screen splicing

At present the LED full color screen point spacing is getting smaller and smaller, the form factor is also getting more and more giant, which makes the physical resolution of the led screen screen count become very huge.

The led video processor has a splicing function, can fetch and move the large resolution screen, is a very cost-effective way to drive.

六、Multi-screen processing

In many special scenarios, a display needs to show multiple images of the same or different signals.

A video processor with multi-screen processing capabilities can flexibly meet such display requirements.

七、Bit Depth Enhancement

The current LED full-color screen grayscale level has been raised to 16 bits, 17 bits, however, the input signal source business number is only 8 bits.

Therefore, with the arrival of the high-definition display era of footsteps, 10 bits of its to 12 bits of processing technology in the frequency processor application has been the trend.

八、Color space conversion

LED displays have a wide color gamut, while most image signals have a smaller color space such as NTSC.

In order to let the LED full color screen has excellent image display effect, must be color space conversion.

In China's LED full-color industry scale development, product technology has also pushed forward, has maintained a relatively advanced level.

LED screen control special large-scale integrated circuits have also been developed and produced by domestic enterprises and have been applied.

LED full-color screen development can not be separated from the video processor.

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1,What are the commonly used video processors?

Here's a brief look at the common brands on the market and the associated products.

The major manufacturers include:

    NOVA

    Carlette

    Linsin    

Huidu

According to different product types, it includes the following categories:

    Sending cards

    Receiving Card

    Others

According to different applications, it mainly includes the following aspects:

    Advertising media

    Information display

    Sports stadiums

    Stage performance

    Transportation and safety

2. How to configure the video processor

The model and function of the video processor depends on the effect that the customer wants to realize through the LED display.

When purchasing an LED display, we need to talk to our engineers about the screen effect we want to achieve.

In common indoor fixed LED display and stage event LED display projects, the screen size, pixel pitch, number and shape will also cause different solutions.