Pixel circuit and driving method therefor, and display panel

A driving method for a pixel circuit, wherein the pixel circuit comprises a driving module, a storage module, a data writing module, an initialization module, and a light emitting module;

• the driving module comprises a dual gate transistor, a first electrode of the dual gate transistor is connected to a first power supply, a second electrode of the dual gate transistor is connected to a first terminal of the light emitting module, and a second terminal of the light emitting module is connected to a second power supply;
• the data writing module is connected between a first gate of the dual gate transistor and a data line;
• the storage module is connected to the first gate of the dual gate transistor, a second gate of the dual gate transistor, and the second electrode of the dual gate transistor;
• and the initialization module is connected to the first gate of the dual gate transistor, the second gate of the dual gate transistor and the second electrode of the dual gate transistor and an initialization signal line;
• and
• the driving method comprises:
• in an initialization stage, controlling the initialization module to transmit a corresponding initialization voltage to the first gate of the dual gate transistor, the second gate of the dual gate transistor, and the second electrode of the dual gate transistor;
• in a threshold detection stage, controlling the initialization module to control the storage module to store association information of a threshold voltage of the dual gate transistor;
• and
• in a data writing stage, controlling the data writing module to transmit a data voltage provided by the data line to the first gate of the dual gate transistor.

A display panel, comprising a pixel circuit, wherein the pixel circuit comprises a driving module, a storage module, a data writing module, an initialization module and a light emitting module;

• wherein
• the driving module comprises a dual gate transistor, a first electrode of the dual gate transistor is connected to a first power supply, a second electrode of the dual gate transistor is connected to a first terminal of the light emitting module, and a second terminal of the light emitting module is connected to a second power supply;
• the data writing module is connected between a first gate of the dual gate transistor and a data line, and is configured to transmit a data voltage output by the data line to the first gate of the dual gate transistor;
• the storage module is connected to the first gate of the dual gate transistor, a second gate of the dual gate transistor, and the second electrode of the dual gate transistor;
• the initialization module is connected to the first gate of the dual gate transistor, the second gate of the dual gate transistor and the second electrode of the dual gate transistor and an initialization signal line, and is configured to transmit a voltage provided by the initialization signal line to the first gate of the dual gate transistor, the second gate of the dual gate transistor, and the second electrode of the dual gate transistor and control the storage module to store association information of a threshold voltage of the dual gate transistor.