Display device and driving method therefor

A display device including a plurality of pixel circuits each including a display element driven by current and a drive transistor for controlling current to be supplied to the display element, the display device comprising:

• a degree-of-degradation obtaining circuit configured to determine a degree of degradation representing a level of degradation of a compensation-target circuit element included in each of K pixel circuits, the compensation-target circuit element being at least one of the display element and the drive transistor, and the K pixel circuits being some or all of the plurality of pixel circuits;
• an index value calculating circuit configured to calculate, as an index value, a value depending on a deviation determined based on degrees of degradation of the K pixel circuits;
• a reference current setting circuit configured to set a reference current corresponding to reference luminance based on the index value, the reference luminance being luminance used as a reference for determining display luminance of the display element after degradation compensation;
• and
• a compensation computing circuit configured to compensate for degradation of the compensation-target circuit elements by correcting input video signals based on the reference current and the degree of degradation of each of the K pixel circuits, upon generating video signals to be supplied to the plurality of pixel circuits.