TIME DIVISION MULTIPLEXING LED DISPLAY DRIVING METHOD AND CHIP THEREOF

A time division multiplexing LED display driving method and a chip thereof. The method comprises: receiving an external input control signal (S110); calculating the number of scanning sequences, a scanning frame number, and the number of scanning fields according to the input control signal (S120); obtaining a read address of a display data cache of a current scan line in combination with the number of scanning sequences, the scanning frame number and the number of scanning fields (S130); outputting scan line display data according to the current read address (S140); and driving an LED display screen to perform grayscale display (S150). In a time division multiplexing display occasion, data of frames having same content does not need to be repeatedly transmitted, an input data bandwidth requirement of an LED driving chip is reduced, the number of LED driving control systems is reduced, the system cost is reduced, the time division multiplexing display frame frequency is improved, and the image display quality