The chip drive mode of LED display is generally divided into static drive and dynamic drive. The static driver is to light the LED lamp beads one by one in accordance with the order, which is often used for small-size LED displays.
Dynamic drive is through the time-sharing control of each row and column of LED light beads, to achieve multiple LED light beads at the same time, suitable for large size LED display. Moreover, the brightness adjustment of LED display can be achieved through PWM dimming technology, which has certain advantages in display effect and energy saving.