Pixel circuit, display panel and drive method thereof

A drive method for a display panel comprising a pixel circuit, the pixel circuit comprising a switch sub-circuit, a storage sub-circuit, and a drive sub-circuit;

• wherein the switch sub-circuit is connected to a gate line, a data line, and the storage sub-circuit, and is configured to transmit a signal on the data line to the storage sub-circuit under the control of a signal on the gate line;
• the storage sub-circuit is connected to a first voltage terminal, a second voltage terminal, and the drive sub-circuit, and is configured to transmit a signal of the first voltage terminal or the second voltage terminal to the drive sub-circuit under the control of the switch sub-circuit;
• the drive sub-circuit is connected to the first voltage terminal, the second voltage terminal, and a pixel electrode, and is configured to transmit the signal of the first voltage terminal or the second voltage terminal to the pixel electrode under the control of the storage sub-circuit, the drive method comprising:
• when a black image is displayed, supplying a DC voltage to a common electrode, a difference between a voltage of the common electrode and a voltage of the second voltage terminal is 0;
• when a white image is displayed, supplying an AC voltage is to the common electrode, a difference between the voltage of the common electrode and a voltage of the first voltage terminal is H and −H.