Patent ID: 11875733
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A method of driving a display device, comprising:
supplying a first sensing data signal corresponding to a first grayscale, first power having a first sensing voltage, and a reference voltage to a pixel during a first sensing period;
sensing a first sensing current, generated based on the first sensing voltage, from the pixel during the first sensing period;
supplying a second sensing data signal corresponding to a second grayscale, the first power having a second sensing voltage, and the reference voltage to the pixel during a second sensing period;
sensing a second sensing current, generated based on the second sensing voltage, from the pixel during the second sensing period; and
calculating, for a sensing circuit, characteristics of a driving transistor of the pixel using the first sensing current and the second sensing current,
wherein the first sensing data signal and the second sensing data signal are different from each other,
wherein the first sensing voltage and the second sensing voltage are different from each other, and
wherein a voltage of the first power supplied to a drain electrode of the driving transistor during the first sensing period is the first sensing voltage,
wherein the voltage of the first power supplied to the drain electrode of the driving transistor during the second sensing period is the second sensing voltage,
wherein the first sensing voltage and the second sensing voltage are voltages that allow the driving transistor to operate in a saturated state.