Patent ID: 11887536
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. The pixel circuit of claim 4, wherein the pixel circuit is driven in the order of an initialization step, a sensing step, a data writing step, a boosting step, and a light emission step,
in the initialization step, voltages of the initialization pulse, the first emission control pulse, the second emission control pulse, and the sensing pulse are a gate-on voltage, and the voltage of the scan pulse is a gate-off voltage,
in the sensing step, the voltages of the initialization pulse, the sensing pulse, and the second emission control pulse are the gate-on voltage, and the voltages of the scan pulse and the first light emission control pulse are the gate-off voltage,
in the data writing step, the voltages of the scan pulse and the sensing pulse are the gate-on voltage, and the voltages of the initialization pulse and the first light emission control pulse are the gate-off voltage,
in the data writing step, the voltages of the second emission control pulse is the gate-on voltage or the gate-off voltage,
in the boosting step and the light emission step, the voltages of the first and second light emission control pulses are the gate-on voltage, and the voltages of the initialization pulse, the sensing pulse, and the scan pulse are the gate-off voltage,
in the boosting step, the voltages of the second and third nodes rise, and
the first to fifth switch elements are turned on according to the gate-on voltage and turned off according to the gate-off voltage.