A timing controller includes a synchronization module for controlling at least one of a sending time point of a first drive control signal and a sending time point of a second drive control signal, such that the first drive control signal reaches a first driving circuit at the same time point as the second drive control signal reaches a second driving circuit. By controlling the sending time points at which the first drive control signal and the second drive control signal are sent, the two drive control signals are enabled to simultaneously reach the two driving circuits, to achieve the synchronous control of such two driving circuits.