Patent ID: 9734754
Date: 2017-08-15
CPC Classifications: G09G

Claim:
1. A display device having current-driven type light-emitting elements, the display device comprising: a plurality of pixel circuits arranged corresponding to intersections of a plurality of scanning lines and a plurality of data lines; a drive circuit configured to write voltages to the pixel circuits by driving the scanning lines and the data lines; a measurement circuit configured to measure drive currents outputted to the data lines from the pixel circuits; and a correction circuit configured to correct a video signal based on the drive currents measured by the measurement circuit, wherein each of the pixel circuits includes: a light-emitting element; a drive transistor provided in series with the light-emitting element and configured to output a drive current of an amount according to a voltage between a control terminal and a light-emitting element side conduction terminal of the drive transistor; and an input/output transistor provided between the light-emitting element side conduction terminal of the drive transistor and a corresponding one of the data lines and having a control terminal connected to a corresponding one of the scanning lines, the drive circuit is configured to classify frame periods as a drive period and a pause period, to apply a selection voltage to the scanning lines in turn and apply voltages to be written to the pixel circuits to the data lines in turn during the drive period, and to apply the selection voltage to one or more scanning lines corresponding to measurement target pixel circuits during the pause period, and the measurement circuit is configured to measure drive currents outputted from the measurement target pixel circuits during the pause period.