A gate driver includes a plurality of shift registers and a plurality of cutting units. Each of the shift registers is configured for outputting a shift register signal according to a clock signal of the each of the shift register sequentially. Each of the shift register signals has a working period and the two working periods of the two adjacent shift register signals overlap each other. Each of the cutting units is coupled to a respective one of the shift registers. The cutting unit corresponding to the Nth shift register is configured for cutting a part of the working period from the shift register signal of the Nth shift register to generate a gate driving signal according to the clock signal of the (N−1)th or (N+1)th shift register, such that working periods of the gate driving signals are staggered. N is a positive integer larger than two.