Pixel circuit, method for driving the same, display panel and display device

A pixel circuit, comprising:

• a resetting sub-circuit, a data writing sub-circuit, a driving sub-circuit, a first light-emission controlling sub-circuit, a second light-emission controlling sub-circuit, an anode potential controlling sub-circuit, a capacitor sub-circuit, and a light-emitting element, wherein:
• the resetting sub-circuit is configured to provide a signal of a first voltage signal terminal to a control terminal of the driving sub-circuit under the control of a reset signal terminal;
• the data writing sub-circuit is configured to provide a data signal transmitted from a data signal terminal to the driving sub-circuit under the control of a scan signal terminal;
• the driving sub-circuit is configured to drive the light-emitting element to emit light, under the control of a potential output by the resetting sub-circuit, wherein a cathode of the light-emitting element is connected to a third voltage signal terminal;
• the first light-emission controlling sub-circuit is configured to provide a signal of a second voltage signal terminal to the driving sub-circuit under the control of a first control terminal;
• the capacitor sub-circuit is configured to maintain a stable voltage difference between the second voltage signal terminal and the control terminal of the driving sub-circuit;
• the second light-emission controlling sub-circuit is configured to provide voltage output by the driving sub-circuit to an anode of the light-emitting element under the control of the first control terminal;
• and
• the anode potential controlling sub-circuit is configured to provide a signal of a fourth voltage signal terminal to the anode of the light-emitting element under the control of a second control terminal, wherein the anode potential controlling sub-circuit comprises a sixth transistor, and wherein the sixth transistor has a gate connected with the second control terminal, a first electrode connected with the fourth voltage signal terminal, and a second electrode connected with the anode of the light-emitting element;
• wherein in a light-emission period, the second light-emission controlling sub-circuit provides the voltage output by the driving sub-circuit to the anode of the light-emitting element under the control of the first control signal terminal, and in a non-light-emission period, the sixth transistor is turned on under the control of the second control terminal, and provides the signal of the fourth voltage signal terminal to the anode of the light-emitting element;
• wherein the second control terminal is a different terminal from the scan signal terminal, and a signal of the first control terminal and a signal of the second control terminal are substantially opposite level signals in phase.