A driving method for driving a pixel driving circuit, wherein the pixel driving circuit comprises a light-emitting element, a driving transistor, a storage sub-circuit, a data writing sub-circuit, a light-emitting control sub-circuit, a charging control sub-circuit, and a threshold voltage compensation sub-circuit, wherein
- the data writing sub-circuit is coupled to the driving transistor and configured to provide a data voltage provided by a data line to a first electrode of the driving transistor under the control of a selection signal terminal;
- the storage sub-circuit is coupled to a control electrode of the driving transistor and a first node respectively, and is configured to perform one of the following operations:
- being charged and discharged, under the control of a signal from the first node and a signal from the control electrode of the driving transistor;
- the charging control sub-circuit is coupled to the first node and the control electrode of the driving transistor respectively, and configured to provide a first voltage signal from a first voltage terminal to the control electrode of the driving transistor under the control of a first signal terminal and provide a second voltage signal from a second voltage terminal or a third voltage signal from a third voltage terminal to the first node under the control of a second signal terminal and a third signal terminal;
- the threshold voltage compensation sub-circuit is coupled to the control electrode of the driving transistor and a second electrode of the driving transistor respectively, and configured to couple the control electrode of the driving transistor to the second electrode of the driving transistor under the control of a fourth signal terminal, to write the data voltage and a threshold voltage of the driving transistor to the control electrode of the driving transistor;
- and
- the light-emitting control sub-circuit is coupled to the light-emitting element, the driving transistor, and the charging control sub-circuit respectively, and configured to turn on the second electrode of the driving transistor and a first terminal of the light-emitting element under the control of a first light-emitting control signal terminal, and turn on the first electrode of the driving transistor and the third voltage terminal under the control of a second light-emitting control signal terminal, to control the light-emitting element to emit light;
- and the driving method comprises:
- providing, by a first signal terminal and a second signal terminal respectively, a turn-on signal to the charging control sub-circuit, to enable a first voltage signal from a first voltage terminal to be provided to the control electrode of the driving transistor, and a second voltage signal from a second voltage terminal to be provided to the first node, to charge the storage sub-circuit;
- providing, by the selection signal terminal, the turn-on signal to the data writing sub-circuit, to enable a data voltage provided by a data line to be provided to a first electrode of the driving transistor;
- and providing by a fourth signal terminal, the turn-on signal to the threshold voltage compensation sub-circuit, to enable the control electrode of the driving transistor to be coupled to the second electrode of the driving transistor, to write the data voltage and a threshold voltage of the driving transistor to the control electrode of the driving transistor;
- and
- providing, by the third signal terminal, the turn-on signal to the charging control sub-circuit, to enable a third voltage signal from the third voltage terminal to be provided to the first node;
- and providing, by the first light-emitting control signal terminal and the second light-emitting control signal terminal, the turn-on signals to the light-emitting control sub-circuit, to provide the third voltage signal from the third voltage terminal to the first electrode of the driving transistor and to turn on the second electrode of the driving transistor and a first terminal of the light-emitting element, to control the light-emitting element to emit light;
- wherein the selection signal terminal, the third signal terminal, the fourth signal terminal, the first light-emitting control signal terminal, and the second light-emitting control signal terminal all provide turn-off signals when the first signal terminal and the second signal terminal both provide the turn-on signals;
- the second signal terminal provides the turn-on signal, and the first signal terminal, the third signal terminal, the first light-emitting control signal terminal and the second light-emitting control signal terminal all provide the turn-off signals when the selection signal terminal and the fourth signal terminal both provide the turn-on signals;
- and
- the selection signal terminal, the first signal terminal, the second signal terminal and the fourth signal terminal all provide the turn-off signals when the third signal terminal, the first light-emitting control signal terminal, and the second light-emitting control signal terminal all provide the turn-on signals.