Method for manufacturing display substrate, display substrate and display device

A display substrate, comprising:

• a base substrate;
• a concave-convex structure arranged on the base substrate;
• and
• a signal transmission line arranged on the concave-convex structure,
• wherein an extending direction of the concave-convex structure is the same as an extending direction of the signal transmission line,
• wherein the display substrate further comprises an insulating layer arranged on the base substrate, and a complementary data line having a same extending direction as an extending direction of a data line,
• wherein the signal transmission line comprises the data line,
• wherein the concave-convex structure comprises a via-hole penetrating the insulating layer,
• wherein an orthographic projection of the complementary data line onto the base substrate at least partially overlaps an orthographic projection of the data line onto the base substrate, and the complementary data line is connected to the data line via the via-hole, and
• wherein the display substrate further comprises a scanning line, there is a projection region of the scanning line projected onto the complementary data line, the projection region is a region where an orthographic projection of the scanning line onto the base substrate overlaps the orthographic projection of the complementary data line onto the base substrate, and a hollowed-out pattern is arranged in the complementary data line at the projection region.