LED display control system (LED Display Control System) is a system that controls the correct display of LED large screens according to user needs and is divided into two categories: networked version and stand-alone version according to the networking mode. The networked version, also known as the LED information release control system, can control each LED terminal through the cloud system. The stand-alone version is also known as the LED display controller or LED display control card, it is the core component of the LED display, mainly responsible for the external video input signal or on-board multimedia file conversion into LED large screen easy to identify the digital signal, so as to light up the LED large screen equipment, which is similar to the graphics card in the home PC, the difference is that the PC display is CRT / LCD, etc., the display in the system is led large screen. The access signal mode can be divided into the synchronous system and the asynchronous system.
If the LED module, LED power supply, and wire are the hardware basis for LED display playback, then the control system is its corresponding software part, similar to the “driver” of the computer. This article will explain in detail what are the control systems of the LED display, and the matters that should be paid attention to when choosing the LED display control system.
First of all, we know that the LED display is divided into two categories: single (double) color and full color, so the corresponding LED display control system is also divided into two categories, single (double) color control system, and full-color control system. In addition, we also need to distinguish the control system as a synchronous system and an asynchronous system according to whether the LED display is synchronous playback or asynchronous playback content.
Single and double color control system
Single and double color LED display content is mostly word files, such as many store doors to display word walking, as well as conference monograms to show word walking, etc., such playback content files are relatively small, mostly a few K, up to 1-2M, the required memory is relatively small, so the control system of the single and double color LED display is mostly asynchronous card. The control system has a serial port, a network port, a USB port, and an increasingly popular mobile phone WIFI transmission.
Single (double) color LED display control system generally has a readback function, that is, as long as you open the corresponding software, read back the control card parameters, you can enter different text content in the corresponding editing interface, click to send after editing, you can replace the original played text content.
The full-color control system
Most of the playback content of the full-color LED display is a picture, video, PPT, and other large data files, according to the playback needs, we can use both synchronous playback system and asynchronous playback system.
A synchronous playback system is mostly used to play video, PPT, its main function is to synchronize with the computer’s display to display playback content, that is, what is played on the computer, what is played on the LED display, mainly used in conferences, offices, stages, large exhibition halls, etc.
An asynchronous playback system is mostly used to loop notifications, advertisements, promotional pictures, and promotional videos, its main function is to play text, pictures or videos, and other content to the asynchronous memory card, for loop playback, mostly used in small exhibition halls, street advertising screens, door screens, traffic guidance screens, and other scenarios.
In recent years, with the maturity of 4G technology, the combination of asynchronous playback system loading 4G modules has also been popular in application scenarios that require remote transmission control such as traffic guidance screens and street column screens. The more popular models of asynchronous playback systems are Nova’s TB series, Grayscale’s C series, Colette’s C series, and so on.
Of course, there are some niche application scenarios, such as special-shaped screens, bars large composite modeling screens, etc., in this regard, the more popular brand of domestic manufacturers is Monsell, and the display effect of its research and development of special-shaped screens is still good.
There are also some customers who have other use needs, such as the need for the audio, plus the need for the light probe to adjust the brightness of the display, the need for remote power control, etc., which can be achieved by loading the corresponding modules.