In order to increase charge time of thin-film transistor (TFT) cells of a display device, the present invention provides a driving device, which includes a timing controller, a column driver module and at least a delay module. The timing controller is used for outputting at least a load signal. The column driver module is coupled to the timing controller and includes at least a column driver. The delay module can be installed in the column driver module or the timing controller, and is used for delaying the load signal for a predetermined time. The load signal is utilized to trigger the plurality of column drivers to output video data provided by a video data source and the video data corresponds to pixels on a panel of the display device. The driving device can use in a cascading, point-to-point or bus-type interfacing architecture to transmit the load signal.