Distinguish LED display control system and control card

Led full-color screen control system is also called led full-color screen controller, or LED full-color screen control card. The control system is the core component of the LED full-color screen. Its primary task is to accept the picture and video display information from the computer serial port or DVI interface, put it into the frame memory, and generate the serial display data and scanning control sequence that can be recognized by the LED full-color screen according to the partition driving method.
LED full color screen is widely used in various industries because of its sensitive control, convenient operation and low cost. The LED full-color screen mainly displays all kinds of words, symbols and graphics. The display information is modified by the computer and put into the frame memory of LED full-color screen through RS232 / 485 serial port in advance. Then the display information is displayed screen by screen and repeated. Display method colorful, full color screen offline operation. Now several commonly used control cards are: hd-m control card, ht-3bu control card, ht-ca control card.

The LED full-color screen control card is used to receive the image display information from the serial port of the computer, put it into the frame memory, and generate the serial display data and scanning control sequence required by the LED full-color screen according to the partition driving method.
LED full color screen control system is divided into synchronous and asynchronous
The LED full-color screen synchronous control system is mainly used for real-time display of video, graphics, information, etc. it is mainly used for indoor or outdoor full-color LED full-color screen. The operation method of LED full-color screen synchronous control system for controlling LED full-color screen is basically the same as that of computer monitor. It maps the pictures on the computer monitor in real time at the update rate of at least 60 frames per second, Usually with multi gray color display ability, it can reach the role of multimedia advertising. Its primary characteristics are: real-time, rich expression, disordered operation and high quotation. A set of LED full-color screen synchronous control system is usually composed of sending card, receiving card and DVI card.
Led full-color screen asynchronous control system, led full-color screen asynchronous control system also known as LED full-color screen offline control system or offline card, is mainly used to display all kinds of text, symbols and graphics or animation, the screen display information is modified by the computer, and the frame memory of LED full-color screen is pre inserted through RS232 / 485 serial port, and then the screen by screen display is broadcast, and the display method is colorful Change diversity. The main features of the system are: full screen control, LED display, color division, asynchronous clock, simple operation Form and animation display, with punctual switch, temperature control, humidity control and other functions.