Display substrate and display apparatus

A display substrate, comprising:

• a base substrate comprising a display region;
• a plurality of pixel units in the display region, wherein each pixel unit comprises at least one pixel circuit comprising a first pixel circuit and a second pixel circuit adjacent to each other in a first direction;
• an initialization signal line extending in the first direction and configured to supply an initialization signal to the first pixel circuit and the second pixel circuit;
• a first control signal line extending in the first direction and configured to supply a gate signal to the first pixel circuit and the second pixel circuit;
• and
• a light-emitting control signal line extending in the first direction and configured to supply a light-emitting control signal to the first pixel circuit and the second pixel circuit;
• wherein the initialization signal line is on a side of the light-emitting control signal line away from the first control signal line, extends along the first direction and comprises a plurality of segments arranged at intervals;
• the display substrate further comprises an initialization bus on a side of the initialization signal line away from the base substrate, wherein the initialization bus is electrically connected to the initialization signal line;
• and
• wherein the initialization bus comprises a plurality of main portions, a plurality of connection portions, and a plurality of branch portions;
• the plurality of main portions extend along the first direction and are arranged at intervals along a second direction, and are configured to provide the initialization signal to a corresponding plurality of initialization signal lines, each of which extends along the first direction and comprises a plurality of segments arranged at intervals;
• the plurality of connection portions extend along the second direction, so that two adjacent main portions are connected to each other through a corresponding connection portion;
• the plurality of branch portions each are connected to at least one of two adjacent main portions, the plurality of connection portions and the plurality of branch portions are alternately arranged at intervals along the first direction, and the plurality of branch portions are configured to respectively provide the initialization signal to a corresponding plurality of initialization signal lines, each of which is between the two adjacent main portions, extends along the first direction and comprises a plurality of segments arranged at intervals.