Pixel circuit and method of driving the same, display panel

A pixel circuit, comprising a drive circuit, a data writing circuit, a compensating circuit, a reset circuit, a first light emitting control circuit, a second light emitting control circuit and a light emitting element, wherein

• the drive circuit comprises a first transistor, a gate of the first transistor is coupled to a first node, a first electrode of the first transistor is coupled to a second node, and a second electrode of the first transistor is coupled to a third node;
• the data writing circuit comprises a second transistor, a gate of the second transistor is coupled to a scan line to receive a scan signal, a first electrode of the second transistor is coupled to a data line to receive a data signal, and a second electrode of the second transistor is coupled to the second node;
• the compensating circuit comprises a third transistor and a capacitor, a gate of the third transistor is coupled to the scan line to receive the scan signal, a first electrode of the third transistor is coupled to the first node, a second electrode of the third transistor is coupled to the third node;
• and a first electrode of the capacitor is coupled to the first node, a second electrode of the capacitor is coupled to a first voltage terminal to receive a first voltage;
• the reset circuit comprises a fourth transistor and a fifth transistor, a gate of the fourth transistor is coupled to a reset control line to receive a reset signal, a first electrode of the fourth transistor is coupled to the first node, and a second electrode of the fourth transistor is coupled to a reset voltage terminal to receive a reset voltage;
• and a gate of the fifth transistor is coupled to the reset control line to receive the reset signal, a first electrode of the fifth transistor is coupled to a fourth node, and a second electrode of the fifth transistor is coupled to the reset voltage terminal to receive the reset voltage;
• the first light emitting control circuit comprises a sixth transistor, a gate of the sixth transistor is coupled to a first light emitting control line to receive a first light emitting control signal, a first electrode of the sixth transistor is coupled to the first voltage terminal to receive the first voltage, and a second electrode of the sixth transistor is coupled to the second node;
• the second light emitting control circuit comprises a seventh transistor, a gate of the seventh transistor is coupled to a second light emitting control line to receive a second light emitting control signal, a first electrode of the seventh transistor is coupled to the third node, and a second electrode of the seventh transistor is coupled to the fourth node;
• and
• a first terminal of the light emitting element is coupled to the fourth node to receive a drive current from the third node, a second terminal of the light emitting element is coupled to a second voltage terminal to receive a second voltage, wherein
• at an initialization stage, the reset circuit is configured to receive the reset signal to apply the reset voltage to the first node and the fourth node, and the second light emitting control circuit is configured to receive the second light emitting control signal to apply the reset voltage to the third node;
• at a data writing and compensating stage, the data writing circuit is configured to receive the scan signal to apply the data signal to the second node, and the compensating circuit is configured to receive the scan signal to compensate the drive circuit;
• at a pre-light emitting stage, the first light emitting control circuit is configured to receive the first light emitting control signal to apply the first voltage to the second node;
• and
• at a light emitting stage, the first light emitting control circuit is configured to receive the first light emitting control signal and the second light emitting control circuit is configured to receive the second light emitting control signal, such that the second light emitting control circuit applies the drive current to the light emitting element to emit light.