The present invention discloses a driving circuit of display device, including an output module, a signal amplification module, a plurality of signal conversion modules, a plurality of column scanning signals. The output module is used for providing a plurality of scanning signals for displaying. The signal amplification module is used for amplifying the plurality of scanning signals. The plurality of signal conversion modules are used for converting each of the plurality of amplified scanning signals into at least two column scanning signals. The plurality of column scanning signals are used for transferring the plurality of column scanning signals to a display control circuit of display device.