Display substrate, manufacturing method, and display device

A display substrate, comprising a first screen and a second screen, an outer contour of the first screen cooperating with an outer contour of the second screen to define at least one recess in the display substrate, wherein the display substrate comprises:

• a back plate comprising a first signal line, the first signal line being configured to provide a common power supply voltage signal and arranged in a peripheral region of the first screen and the second screen;
• and
• light-emitting elements arranged in the first screen and the second screen, the light-emitting element comprising a first electrode, a light-emitting functional layer and a second electrode laminated one on another from a side away from the back plate to a side close to the back plate,
• wherein a partition structure is arranged along an edge of the recess in the peripheral region of the first screen and the second screen, the partition structure is located at a side of the light-emitting functional layer close to the back plate, orthogonal projections of the light-emitting functional layer and the first electrode onto the back plate at least partially overlap with an orthogonal projection of the partition structure onto the back plate, the light-emitting functional layer is interrupted by the partition structure to form an opening, and the first electrode covers the partition structure in a shape-following manner and is lapped onto the first signal line via the opening.