A display includes a glass substrate, a source driver and a gate driver. The glass substrate includes multiple pixels. The source driver is used to drives the pixels, and the gate driver disposed on the glass substrate enables the pixels. The gate driver has (N+1) shift registers. The nth shift register includes an input unit, an output unit, an output pull-down unit and a threshold voltage memory unit. When an output signal of the (n+1)th shift register is at a high voltage level, the threshold voltage memory unit turns on the output pull-down unit such that an output signal of the nth shift register is changed to and maintained at a low voltage level. The threshold voltage memory unit stores a characteristic voltage relating to a threshold voltage of the output pull-down unit.