Display panel and display device

A display panel, comprising a pixel driver circuit;

• wherein the pixel driver circuit comprises a light-emitting module, a drive transistor and at least one light-emitting control transistor;
• the drive transistor, the at least one light-emitting control transistor and the light-emitting module are connected in series between a first power supply signal terminal and a second power supply signal terminal;
• the drive transistor is configured to drive the light-emitting module to emit light in a light-emitting stage;
• the at least one light-emitting control transistor is configured to provide drive current generated by the drive transistor to the light-emitting module in the light-emitting stage;
• at least one of the drive transistor or a light-emitting control transistor of the at least one light-emitting control transistor is a first double-gate transistor;
• and
• the first double-gate transistor comprises a first gate, a second gate and a first source, and the second gate is electrically connected to the first source, wherein the display panel further comprises a base substrate, wherein,
• the first double-gate transistor is disposed on a side of the base substrate;
• the first double-gate transistor further comprises a first active layer;
• in a direction perpendicular to the base substrate, the first gate at least partially overlaps with the first active layer, and the second gate at least partially overlaps with the first active layer;
• and
• wherein the first gate is located on a side of the first active layer away from the base substrate, and the second gate is located on a side of the first active layer close to the base substrate;
• the display panel further comprises a conductive connection layer,
• in a direction perpendicular to the base substrate, the second gate at least partially overlaps with the conductive connection layer, and the first source at least partially overlaps with the conductive connection layer;
• and
• the second gate and the first source are electrically connected to the conductive connection layer, respectively,
• wherein the conductive connection layer and the first gate are disposed on a same layer.

A display panel, comprising a pixel driver circuit;

• wherein the pixel driver circuit comprises a light-emitting module, a drive transistor and at least one light-emitting control transistor;
• the drive transistor, the at least one light-emitting control transistor and the light-emitting module are connected in series between a first power supply signal terminal and a second power supply signal terminal;
• the drive transistor is configured to drive the light-emitting module to emit light in a light-emitting stage;
• the at least one light-emitting control transistor is configured to provide drive current generated by the drive transistor to the light-emitting module in the light-emitting stage;
• at least one of the drive transistor or a light-emitting control transistor of the at least one light-emitting control transistor is a first double-gate transistor;
• and
• the first double-gate transistor comprises a first gate, a second gate and a first source, and the second gate is electrically connected to the first source,
• wherein the pixel driver circuit further comprises:
• a first reset transistor, wherein a gate of the first reset transistor is electrically connected to a first scan signal terminal, a first electrode of the first reset transistor is electrically connected to a reference signal terminal, and a second electrode of the first reset transistor and a gate of the drive transistor are connected to a first node;
• a data writing transistor, wherein a gate of the data writing transistor is electrically connected to a second scan signal terminal, a first electrode of the data writing transistor is electrically connected to a data signal terminal, and a second electrode of the data writing transistor is electrically connected to a first electrode of the drive transistor;
• an additional transistor, wherein a gate of the additional transistor is electrically connected to the second scan signal terminal, a first electrode of the additional transistor is electrically connected to a second electrode of the drive transistor, and a second electrode of the additional transistor is electrically connected to the first node;
• a first capacitor, wherein one end of the first capacitor is electrically connected to the first power supply signal terminal, and another end of the first capacitor is electrically connected to the first node;
• and
• a light-emitting reset transistor, wherein a gate of the light-emitting reset transistor is connected to the second scan signal terminal, a first electrode of the light-emitting reset transistor is electrically connected to the reference signal terminal, and a second electrode of the light-emitting reset transistor is electrically connected to the light-emitting module,
• wherein the drive transistor and the at least one light-emitting control transistor are arranged in a first direction;
• in a second direction, the first reset transistor, the data writing transistor, the additional transistor and the light-emitting reset transistor are located on a same side of the drive transistor and the at least one light-emitting control transistor;
• and
• the first direction and the second direction are both parallel to a plane where the display panel is located, and the first direction intersects with the second direction.