Display device and drive method therefor

An active-matrix type display device comprising:

• a display unit including a plurality of scanning lines, a plurality of data lines, and a plurality of pixel circuits arranged two-dimensionally;
• a scanning line drive circuit configured to drive the scanning lines;
• a data line drive circuit configured to drive the data lines;
• a measurement circuit provided at an outside of the display unit and configured to measure a current or a voltage with respect to the pixel circuit;
• and
• a correction unit configured to correct a video signal to be supplied to the data line drive circuit, based on the current or the voltage measured by the measurement circuit, wherein
• the pixel circuit includes an electro-optical element, and a drive transistor having a control terminal and connected in series with the electro-optical element,
• the drive transistor is configured to operate in a saturation region when a data voltage applied to the control terminal using the data line drive circuit is in a first range, and operate in a triode region when the data voltage is in a second range, and
• the correction unit is configured to determine in which operation region the drive transistor operates between the saturation region and the triode region with respect to each pixel circuit based on the video signal, and correct the video signal in accordance with the operation region of the drive transistor.