Pixel drive circuit, display panel and display device

A display panel, comprising a pixel driving circuit, wherein the pixel driving circuit comprises:

• a driving transistor connected to a first node, a second node and a third node, and configured to output a driving current to the third node under control of the first node;
• a storage capacitor, comprising one terminal connected to the first node;
• a data writing circuit, connected to the second node, and configured to load a data voltage to the second node in response to a scan signal;
• a threshold compensation circuit, connected to the first node and the third node, and configured to conduct the first node and the third node in response to the scan signal;
• a first light emitting control circuit, connected to the second node, and configured to apply a first power supply voltage to the second node in response to a light emitting control signal;
• a second light emitting control circuit, connected to the third node and a fourth node, and configured to conduct the third node and the fourth node in response to the light emitting control signal;
• a first reset circuit, connected to the fourth node, and configured to apply a second power supply voltage to the fourth node in response to the scan signal;
• and
• a light emitting element, one terminal of the light emitting element is connected to the fourth node, and the other terminal is configured to load the second power supply voltage,
• wherein the pixel driving circuit comprises a first power supply lead configured to load the first power supply voltage and a second power supply lead configured to load the second power supply voltage,
• wherein the first power supply lead comprises a first part extending in a first direction and a second part extending in a second direction, and the first part and the second part are formed in different conductive layers and are interconnected to form a grid shaped electrode;
• and wherein the second power supply lead comprises a first part extending in the first direction and a second part extending in the second direction, and the first part and the second part are formed in different conductive lavers and are interconnected to form a grid shaped electrode.

A display device, comprising a display panel, wherein the display panel comprises a pixel driving circuit which comprises:

• a driving transistor connected to a first node, a second node and a third node, and configured to output a driving current to the third node under control of the first node;
• a storage capacitor, comprising one terminal connected to the first node;
• a data writing circuit, connected to the second node, and configured to load a data voltage to the second node in response to a scan signal;
• a threshold compensation circuit, connected to the first node and the third node, and configured to conduct the first node and the third node in response to the scan signal;
• a first light emitting control circuit, connected to the second node, and configured to apply a first power supply voltage to the second node in response to a light emitting control signal;
• a second light emitting control circuit, connected to the third node and a fourth node, and configured to conduct the third node and the fourth node in response to the light emitting control signal;
• a first reset circuit, connected to the fourth node, and configured to apply a second power supply voltage to the fourth node in response to the scan signal;
• and
• a light emitting element, one terminal of the light emitting element is connected to the fourth node, and the other terminal is configured to load the second power supply voltage,
• wherein the pixel driving circuit comprises a first power supply lead configured to load the first power supply voltage and a second power supply lead configured to load the second power supply voltage,
• wherein the first power supply lead comprises a first part extending in a first direction and a second part extending in a second direction, and the first part and the second part are formed in different conductive layers and are interconnected to form a grid shaped electrode;
• and wherein the second power supply lead comprises a first part extending in the first direction and a second part extending in the second direction, and the first part and the second part are formed in different conductive layers and are interconnected to form a grid shaped electrode.