Mar. 05, 2021< Back to list
LED display control system also known as LED display control card. It is the core component of the LED display. It is mainly responsible for receiving the picture and video display information from the computer serial port or DVI interface, putting it into the frame memory and converting the data into serial display data that can be recognized by the LED display, scan control timing.
There are two main types of LED display control systems: synchronous and asynchronous. The synchronous control system refers to the LED display control system where the content displayed on the display and the data source display synchronously; the asynchronous control system refers to the video source data that has been stored in the control system. Inside, disconnecting the video source will not affect the normal display of the screen content.
What’s the difference between synchronous and asynchronous LED controller?
LED display synchronous control system is mainly used for real-time display of video, graphics, and notifications. Mainly used for indoor or outdoor full-color LED large screen display. The working mode of the LED display synchronization control system is basically the same as that of the computer monitor. It maps the image on the computer monitor in real-time with an update rate of at least 60 frames per second. It usually has a multi-gray color display. Ability to achieve multimedia advertising effects. Its main features are real-time, rich expressiveness, complicated operation, and high price. A set of LED display synchronization control systems is generally composed of sending cards, receiving cards, and DVI displays.
The main characteristics of the asynchronous control system are simple operation, low price, and wide application range. The LED display simple asynchronous control system can only display digital clocks, text, and special characters. In addition to the functions of a simple control system, the LED display graphic asynchronous control system has the biggest feature that it can control the display content in different areas. Support analog clock display, countdown, picture, table, and animation display. With functions such as time switch, temperature control, humidity control, etc.
We usually use Nova TB series asynchronous system. The asynchronous control system can also be equipped with 4G, so what is 4G? what's it for? How do we choose whether to use 4G?
Generally, asynchronous systems are often used in outdoor fixed installation projects or the place where installed several screen. If we regard the LED asynchronous control system as a website, then the 4G module is the backend of this website. We can publish programs through this 4G backend, which means you can just log in to the software and publish the program in a place far from the screen. You can log in to the system account given to you by the LED display controller system company in any place where there is a network, and you can publish any pictures or videos you want to catch the attention from passerby. For some screens which are far away from people or which are inconvenient to publish near the screen, 4G is a very suitable choice.
Anyway, no matter what application field of your project, what is the installation method you want, we will do our best to provide you with the best solution!