8 Key Technologies of Small Pitch LED Display Video Processor

With the continuous progress of science and technology, small pitch LED display is more and more widely used in the market. Featuring high definition, high brightness, high saturation and high refresh rate, small-pitch LED displays are widely used in TV walls, stage backdrops, commercials and conference rooms. The high definition and seamless splicing of small-pitch LED display need to be equipped with efficient video processor. In this article, we will introduce the 8 key technologies of small pitch LED display video processor.

1. Color Space Conversion Technology

LED display color space conversion technology is one of the key technologies of the video processor. Different LED screens use different color spaces, so it is necessary to convert the input signal into a color space that matches the LED screen through color space conversion technology. At present, the commonly used color spaces are RGB, YUV and YCbCr, etc. Through the color space conversion technology, these different color spaces can be converted to the color space of the LED screen, so as to achieve accurate color reproduction

2. Image Enlargement Technology

The resolution of the small pitch LED screen is very high, and the image amplification technology is one of the indispensable technologies of the video processor. Image magnification technology mainly includes interpolation algorithm, magnification algorithm and edge preservation algorithm. Interpolation algorithm is one of the most commonly used image enlargement technology, through the interpolation algorithm can be low resolution image to high resolution image enlargement, improve the clarity and detail of the image.

3.Color Correction Technology

Color correction technology is a very important technology in the LED screen video processor, because the LED screen in the manufacturing process will inevitably appear some chromatic aberration, especially in the splicing is more prone to chromatic aberration. Color correction technology is mainly through the contrast, saturation, hue and other parameters are adjusted to achieve color balance and uniformity, improve the color reproduction of the video.

4. Gray Scale Processing Technology

Small pitch LED screen in the display of gray scale requirements are very high, so grayscale processing technology is also one of the key technologies in the video processor. Gray scale processing technology is mainly through the PWM (Pulse Width Modulation) technology to control the brightness of the LED, so that the brightness of each LED can be precisely adjusted. At the same time, the gray scale processing technology also needs to solve the problem of insufficient number of gray scale levels to achieve a more detailed image display.

5. Pretreatment Technology

Pre-processing technology refers to the processing and optimization of the video signal before the LED screen display. It mainly includes signal gain, denoising, sharpening, filtering, color enhancement and other processing methods. These treatments can reduce noise, enhance contrast and clarity when transmitting signals, while also eliminating color deviations and improving the realism and readability of images.

6. Frame Synchronization

In the display of LED screen, frame synchronization technology is also one of the very important technologies in the video processor. Frame synchronization technology is mainly achieved by controlling the refresh rate of the LED screen and the frame rate of the input signal, so that the video screen can be displayed smoothly. In multi-screen splicing, frame synchronization technology can effectively avoid the splicing of the screen flicker and tearing and other problems.

7.Display Delay Technology

The display delay time of a small-pitch LED screen is very important because in certain applications, such as E-Sports competitions and concerts, a long delay time can cause video and audio to be out of sync, which affects the user experience. Therefore, video processors need to be equipped with display delay technology to achieve the shortest possible delay time.

8.Multi-signal Input Technology

In some occasions, it is necessary to display multiple signal sources at the same time, such as multiple cameras, multiple computers and so on. Therefore, the video processor needs to have multi-signal input technology, which can receive multiple signal sources at the same time, and switch and mix the display. At the same time, the multi-signal input technology also needs to solve the problems of different signal source resolutions and different frame rates to achieve stable and smooth video display.

In summary, the key technologies of small pitch LED screen video processor include color space conversion technology, image amplification technology, color correction technology, gray scale processing technology, frame synchronization technology, display delay technology and multi-signal input technology. The application of these technologies can effectively improve the display effect and user experience of small pitch LED screen. In the future, with the continuous development of technology, the video processor will be constantly upgraded and improved for the application of small pitch LED screen to bring more outstanding performance.


Post time: Jul-24-2023