The invention relates to a drive method that precharging is carried out on pixels by a liquid crystal display device. The grids of two adjacent lines of thin film transistors are opened simultaneously, then, the grids of the thin film transistor in the lower line are firstly closed, and the grids of the thin film transistor in the upper line are closed after the grids of the thin film transistor in the alternate line are opened, thus leading the opening time of thin film transistor in the upper line to be two times that of the proposal of the prior art and causing the charging interval of thethin film transistor to be lengthened; storage capacitance is charged fully, so as to thoroughly eliminate the phenomenon of traverse weak bright lines. The drive method can be operated easily, does not need any increase of cost and effectively improves the image quality.