Les écrans LED à petit-pitch deviennent de plus en plus populaires, mais si les écrans LED à petit-pitch veulent obtenir l'effet d'affichage idéal, ils ne peuvent pas se passer du rôle auxiliaire du processeur vidéo. Contrairement aux grands écrans LED d'extérieur, les LED à petit-pas sont soumises à de nombreuses restrictions sur l'affichage des images.
Affichage LED à petit pas
First, the brightness of the environment is different, and the brightness of the indoor environment is low, so the brightness of the LED screen is required not to be as high as the outdoor. This requires the video processor to have more excellent image quality improvement capabilities, and in particular requires more advanced image scaling processing algorithms to ensure that the high-definition video image can be scaled to maintain the image's detail definition and grayscale to the greatest extent level. Secondly, there must be a wealth of image adjustment options and adjustment effects, especially the adjustment of image brightness, contrast, and low-gray processing, so as to ensure that the screen will output soft, clear and well-defined images under the indoor light environment.
Second, the indoor display is limited by the area of the venue, and it is required to display as high-definition videos and images as possible within the limited display area. This requires the video processor to have higher resolution image output capabilities, higher resolution and more channels of video image input capabilities.
Third, the traditional applications of indoor large screens are large-screen displays for surveillance, command and control occasions. These applications require large screens with high definition, more input signals, more channels of real-time video window images, and flexible and quick access to these images. Control and management.
The LED video processor is a key equipment and witness to the birth, growth and maturity of the LED full-color display. The quality of the LED video processor directly affects the display effect of the LED display. So from the user's point of view, how to choose a suitable processor?
Affichage LED à petit pas
Take the control room application as an example. The control room is one of the most demanding environments for the splicing wall processor. In many cases, the real-time and integrity of the signal will affect the accuracy of decision-making. Therefore, in addition to considering the stability of the product during the selection process, users also need to conduct a comprehensive investigation of the real-time processing capabilities of the multi-input signal source, whether it is easy to use, and the specific application environment.
When selecting a processor, the first consideration is to be able to accurately reproduce the signal source in the system. This is the most basic requirement of every video system used for decision-making, because the distortion of image resolution conversion may cause content to be corrupted. Misinterpretation. Secondly, unstable video performance, such as dropped frames or freezes, will distract users and hinder correct content analysis; again, control rooms usually use multiple signal source types, and the correct processor must be compatible. These signal sources; finally, the flexibility of configuration should also be considered. Since the number of inputs, input types and screen arrangements of the splicing wall in each project are different, the splicing wall processor needs to be flexibly configured to meet these specific applications. Demand.
In addition, in the design of an excellent control room solution, you also need to consider the specific application environment and how to use it. For example, the needs of public utility management centers are not the same as those of military organizations. Understanding the type of information that needs to be displayed and how to present it is the first step in choosing a video wall processor.
Control rooms usually involve and use a variety of signal source types. The ability to be compatible with specific signal types in the control room and a large number of signal source windows can ensure that the control room staff can see important information, and this information can help them more efficiently Work. In addition, since many organizations choose to display HDMI satellite broadcast signals or Blu-ray content, compliance with the HDCP standard has increasingly become a requirement.
An excellent solution not only needs to consider the needs of realization, but also consider the new needs that may arise in the future, such as the convenience of operation, display effect, and viewing comfort involved in the signal access, processing, scheduling, and display process. System maintenance, expansion, etc. should be considered when choosing a splicing wall processor.
