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 data writing module, a coupling module, and a light-emitting module, the data writing module being connected to a first terminal of the coupling module, and a second terminal of the coupling module being connected to a control terminal of the driving module,

• the driving method for a pixel circuit comprising:
• in a first writing phase, controlling the data writing module to transmit a data voltage of a current frame to an internal node of the data writing module;
• in a second writing phase, controlling the data writing module to transmit the data voltage of the current frame on the internal node of the data writing module to the first terminal of the coupling module, and controlling the coupling module to write voltage information associated with the data voltage of the current frame into the control terminal of the driving module;
• and
• in a light emission phase, controlling the driving module to drive the light-emitting module to emit light.

A display panel, comprising:

• a pixel circuit, comprising:
• a driving module configured to drive, in a light emission phase, a light-emitting module to emit light;
• a coupling module, wherein a second terminal of the coupling module is connected to a control terminal of the driving module;
• and
• a data writing module connected to a first terminal of the coupling module and configured to transmit a data voltage to the first terminal of the coupling module in different phases, and write voltage information associated with the data voltage into the control terminal of the driving module through the coupling module.