A display capable of improving frame quality includes a display panel, a timing controller, and a source driver. The timing controller is used for generating a scan start signal, and generating at least one control signal in a blanking time of the display panel according to polarity of a last datum before the blanking time and polarity of a first datum after the blanking time. The source driver is used for generating at least one datum synchronized with the at least one control signal according to the polarity of the last datum before the blanking time, a voltage of the first datum after the blanking time and the at least one control signal. The source driver does not change a last datum of the at least one datum after the at least one control signal in the blanking time.