Pixel circuit and driving method thereof, and display device

A pixel circuit, comprising a reset and precharge sub-circuit, a scanning compensation sub-circuit, a driving sub-circuit and a light-emission control sub-circuit, wherein the scanning compensation sub-circuit comprises a storage capacitor, and wherein

• the light-emission control sub-circuit is configured to control a light-emitting device to emit light;
• the reset and precharge sub-circuit is coupled to the scanning compensation sub-circuit and the light-emission control sub-circuit, and is configured to reset the light-emission control sub-circuit according to a reset signal, and reset a second electrode of the storage capacitor of the scanning compensation sub-circuit according to a scanning signal;
• the scanning compensation sub-circuit is further coupled to the driving sub-circuit and the light-emission control sub-circuit, and is configured to charge the storage capacitor of the scanning compensation sub-circuit according to the scanning signal, so as to compensate for the driving sub-circuit;
• the driving sub-circuit is further coupled to the light-emission control sub-circuit, and is configured to provide a driving current for the light-emitting device via the light-emission control sub-circuit;
• and
• the light-emission control sub-circuit is further coupled to the light-emitting device, and is configured to control the light-emitting device to emit light according to a light-emission control signal.

A method for driving a pixel circuit, wherein a pixel circuit comprises a reset and precharge sub-circuit, a scanning compensation sub-circuit, a driving sub-circuit and a light-emission control sub-circuit, wherein the scanning compensation sub-circuit comprises a storage capacitor, and wherein

• the light-emission control sub-circuit is configured to control a light-emitting device to emit light,
• the reset and precharge sub-circuit is coupled to the scanning compensation sub-circuit and the light-emission control sub-circuit, and is configured to reset the light-emission control sub-circuit according to a reset signal, and reset a second electrode of the storage capacitor of the scanning compensation sub-circuit according to a scanning signal,
• the scanning compensation sub-circuit is further coupled to the driving sub-circuit and the light-emission control sub-circuit, and is configured to charge the storage capacitor of the scanning compensation sub-circuit according to the scanning signal, so as to compensate for the driving sub-circuit,
• the driving sub-circuit is further coupled to the light-emission control sub-circuit, and is configured to provide a driving current for the light-emitting device via the light-emission control sub-circuit, and
• the light-emission control sub-circuit is further coupled to the light-emitting device, and is configured to control the light-emitting device to emit light according to a light-emission control signal,
• and the method comprises steps of:
• in a reset and precharge stage, resetting the reset and precharge sub-circuit and precharging the storage capacitor of the scanning compensation sub-circuit according to the reset signal and the scanning signal;
• in a compensation charging stage, charging the storage capacitor of the scanning compensation sub-circuit according to the scanning signal, so as to compensate for the driving sub-circuit;
• and
• in a light-emission driving stage, driving the light-emitting device to emit light according to the light-emission control signal and the data signal.