Display device, it's driving circuit, and driving method

One embodiment of the present invention discloses a display device which can use a display element having a relatively large difference between a minimum gradation voltage and a maximum gradation voltage. A first selection period and a second selection period are included in a period (a scanning signal line selection period) in which each gate wiring is selected. In the first selection period, a first selection voltage for allowing every TFT included in a line, which is an object to be selected, to be in an ON state is applied to the gate wiring of the line which is the object to be selected. In a period between the first selection period and the second selection period, a non selection voltage is applied to the gate wiring which is the object to be selected and the voltage of an auxiliary capacity wiring corresponding to the gate wiring which is the object to be selected is changed. In the second selection period, a second selection voltage for allowing a part of the TFTs included in the line, which is the object to be selected, to be in an ON state is applied to the gate wiring which is the object to be selected.