Display panel, driving method thereof and display device

A display panel, comprising:

• a light-emitting unit, comprising a pixel circuit and a light-emitting element, the pixel circuit being configured to drive the light-emitting element, the pixel circuit comprising a driving transistor, a first reset transistor and a second reset transistor;
• the first reset transistor being connected with a gate electrode of the driving transistor and configured to reset the gate electrode of the driving transistor, and the second reset transistor being connected with a first electrode of the light-emitting element and being configured to reset the first electrode of the light-emitting element;
• and
• a first initialization signal line, connected with the gate electrode of the driving transistor through the first reset transistor and configured to supply an alternating current signal, wherein the first initialization signal line is configured to supply a first voltage to the first reset transistor in a phase of resetting the gate electrode of the driving transistor and configured to supply a second voltage to the first reset transistor in a light-emitting phase of the light-emitting element, and the second voltage is greater than the first voltage,
• wherein the first reset transistor is a dual-gate transistor, the first reset transistor comprises a first channel and a second channel, and the first channel and the second channel are connected by a first conductive connection portion;
• the display panel further comprises a base substrate and a first power line which is configured to supply a first voltage signal to the pixel circuit;
• and
• an orthographic projection of the first conductive connection portion on the base substrate is completely within an orthographic projection of the first power line on the base substrate.