Synchronous control and asynchronous control of LED displays are two common control methods. They have some differences in data transmission and refresh methods. They are explained in detail below.
Do you know what supporting equipment is available for LED display screens? Click
Maxcolor LED
Synchronous Control
Synchronous control refers to using an external clock signal to synchronously control the refresh of the LED display. In synchronous control mode, image data is transmitted at a fixed frame rate and timing, and is synchronized with an external clock signal. Key features include:
The input of an external clock signal is required to drive the display refresh.
Image data is transmitted at a fixed refresh rate, maintaining synchronization with the external clock signal.
Usually used on large-scale LED displays that are statically installed, such as indoor LED walls, LED curtain walls, etc.
For synchronous control mode, additional hardware devices are required to generate and transmit external clock signals.
MaxcolorLED Aging Room
Asynchronous Control
Asynchronous control refers to sending image data directly to the LED display through the control card or controller, without the need for external clock signal synchronization. In asynchronous control mode, image data can be sent in real time and updated as needed. Key features include:
Image data can be sent in real time without the input of an external clock signal.
Image data can be updated as needed without being limited by a fixed refresh frequency.
Usually used in small LED displays, such as indoor information displays, billboards, timers, etc.
The asynchronous control method is simpler and more flexible and does not require additional external clock signal equipment.
aging testing
To sum up, the main difference between synchronous control and asynchronous control lies in the data transmission method and refresh timing. Synchronous control requires an external clock signal to refresh synchronously and is suitable for large displays with static installations. Asynchronous control updates the display content in real time by directly sending image data, which is suitable for small displays and those that require more flexible control methods. The choice of control method depends on the specific application requirements and display specifications.
Thank you for reading, I hope this solves your problem. If you want to know more, please contact us
