Pixel driving circuit, array substrate and display device

An array substrate, comprising:

• a first direct voltage signal line extending along a first direction;
• a second direct voltage signal line extending along a second direction, the first direction intersecting the second direction;
• and
• a plurality of pixel driving circuits, wherein the plurality of pixel driving circuits are arranged in an array along the first direction and the second direction, and the plurality of pixel driving circuits are respectively electrically connected to the first direct voltage signal line and the second direct voltage signal line, wherein a pixel driving circuit of the plurality of pixel driving circuits comprises:
• a first transistor, wherein a gate of the first transistor is electrically connected to a first
• node, and the first transistor is configured to provide a driving current for a light-emitting element;
• a first storage capacitor, wherein a first plate of the first storage capacitor is electrically connected to the first node, and a second plate of the first storage capacitor is electrically connected to a first electrode of the light-emitting element through a first connection part;
• and
• the array substrate further includes a first subsection electrically connected to the first node, wherein
• along a thickness direction of the array substrate, the second direct voltage signal line overlaps with the first subsection to form a third storage capacitor.

A display device, comprising:

• an array substrate, wherein
• the array substrate comprises:
• a first direct voltage signal line extending along a first direction;
• a second direct voltage signal line extending along a second direction, the first direction intersecting the second direction;
• a first scan signal line extending along the first direction;
• a second scan signal line extending along the first direction;
• a data signal line extending along the second direction;
• and
• a plurality of pixel driving circuits, wherein the plurality of pixel driving circuits are arranged in an array along the first direction and the second direction, and the plurality of pixel driving circuits are respectively electrically connected to the first direct voltage signal line and the second direct voltage signal line, wherein
• a pixel driving circuit of the plurality of pixel driving circuits comprises:
• a first transistor, wherein a gate of the first transistor is electrically connected to a first node, and the first transistor is configured to provide a driving current for a light-emitting element;
• a second transistor, wherein a gate of the second transistor is electrically connected to the first scan signal line, a first electrode of the second transistor is electrically connected to the data signal line, and a second electrode of the second transistor is electrically connected to a first electrode of the first transistor;
• a third transistor, wherein a gate of the third transistor is electrically connected to the second scan signal line, a first electrode of the third transistor is electrically connected to the first node, and a second electrode of the third transistor is electrically connected to a second electrode of the first transistor;
• and
• a first storage capacitor, wherein a first plate of the first storage capacitor is electrically connected to the first node, and a second plate of the first storage capacitor is electrically connected to a first electrode of the light-emitting element through a first connection part.