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The operational principles of LED video processors
Release time:2023-11-29

In today's digitized world, LED video processors play a pivotal role by providing crucial support for the switching and processing of various signal sources. These processors, through intricate technical mechanisms, ensure the stable transmission of video signals during switches while optimizing display performance. This article will delve into the working principles of LED video processors and their significant role in signal processing and switching.


When switching signal sources, the video processor consolidates HDMI 1 and HDMI 2 signals, processes them through frame buffering, continuously outputs image signals, ensuring uninterrupted signal transmission. It achieves seamless switching by identifying and converting to the optimal resolution output.

The video processor transforms TMDS signals, handling color depth, resolution, and color space from different sources to optimize display performance. During EDID communication, if there's a discrepancy between signal source and display resolutions, frequent identification and repetitive communication with the display are necessary. With the addition of a video processor, it maintains fixed EDID communication with the display, reducing the need for repetitive identification and ensuring stable and rapid information transmission.

The video processor ensures stable EDID communication and incorporates frame buffering capabilities. During interruptions in switcher signals, it maintains uninterrupted EDID communication, continuously outputting video images, thus achieving seamless switching effects.

Furthermore, the video processor includes image resolution recognition and conversion capabilities. For instance, during signal source switching as depicted in the diagram, the video processor automatically identifies the display's optimal resolution as 1080P, swiftly converting the signal source from 720P to 1080P for output.

However, an increase in original signal processing and image modification instances leads to significant loss of original image information, resulting in image distortion. Thus, preserving the original information remains crucial. The switcher's function lies in signal scheduling and management, preserving the originality of the signal and maintaining the video image information unchanged. Meanwhile, the video processor appropriately refines and enhances video images, ensuring a superior presentation of the images.


Overall, LED video processors have brought revolutionary changes to the field of signal processing through their unique functionalities and performance. Offering seamless switching, resolution conversion, and image optimization, they provide high-quality video processing solutions for various scenarios. With technology continuously evolving, LED video processors will continue to play a crucial role in the realms of digital displays and audiovisuals.

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