The utility model provides an associated grid driver and method, and an LCD (liquid crystal display) outputting zero overlapping scanning signals, comprising multilevel grid drive circuits, wherein, the grid drive circuits are coupled with each other, and used to output a plurality of scanning signals; each level of grid drive circuit comprises a shift register and an obstruction circuit, wherein, the shift register is used to generate a scanning signal in light of a frequency signal and the scanning signals of a previous grid driver circuit; the obstruction circuit is coupled with the shift register, and used to block the scanning signals output by the shift register for a pre-arranged period, so as to generate a plurality of scanning signals without overlapping time sequences between the adjacent levels of the grid drive circuits, and improve image qualities of the LCD (liquid crystal display).