Display device and method for driving same

A method for driving an active matrix-type display device configured to display a color image by dividing one frame period into a plurality of sub-frames and displaying a screen image of a different color for each of the sub-frames, the active matrix-type display device comprising a plurality of data lines;

• a plurality of scanning signal lines disposed to be orthogonal to the plurality of data lines;
• a plurality of pixel circuits provided corresponding to intersections of the plurality of data lines and the plurality of scanning signal lines;
• a first power supply line configured to supply a constant voltage to the plurality of pixel circuits;
• and a plurality of second power supply lines configured to supply a relatively high-level first voltage and a relatively low-level second voltage to the plurality of pixel circuits, the plurality of second power supply lines corresponding, in a one-to-one manner, to the plurality of sub-frames included in the one frame period;
• the method comprising:
• a data line driving step for applying a video signal to the plurality of data lines;
• a scanning signal line driving step for applying a scanning signal to the plurality of scanning signal lines;
• and
• a second power supply control step for controlling a voltage to be given to the plurality of second power supply lines, wherein
• the pixel circuit comprises:
• a plurality of self light-emitting type electro-optical elements provided between each of the plurality of second power supply lines and the first power supply line, the plurality of self light-emitting type electro-optical elements corresponding, in a one-to-one manner, to the plurality of sub-frames included in the one frame period,
• one first transistor that is provided to be in series with the plurality of electro-optical elements between the first power supply line and the plurality of second power supply lines, and that controls a driving current to be supplied to the plurality of electro-optical elements,
• a second transistor that is provided between a control terminal of the first transistor and one of the data lines, and that electrically connects the control terminal of the first transistor and the data line when a scanning signal applied to a corresponding scanning signal line has been set active in the scanning signal line driving step, and
• a capacitor provided between the control terminal of the first transistor and one conductive terminal of the first transistor, and
• when any sub-frame included in the one frame period is assumed as a focused sub-frame, in the second power supply control step, a voltage to be given to the plurality of second power supply lines is controlled such that, in the focused sub-frame, a voltage applied to an electro-optical element corresponding to the focused sub-frame becomes equal to or higher than a light emission threshold value and also a voltage applied to an electro-optical element other than the electro-optical element corresponding to the focused sub-frame becomes less than the light emission threshold value.