Wiring substrate, display substrate and display apparatus

A display substrate, comprising a wiring substrate wherein the wiring substrate comprises:

• a base substrate;
• and
• a plurality of control areas on a side of the base substrate, each of the plurality of control areas extending in a first direction, the plurality of control areas being sequentially arranged in a second direction, and any one of the plurality of control areas comprising:
• a plurality of drive circuit pad groups sequentially arranged in the first direction:
• a plurality of functional element pad groups, each of which is electrically connected with a corresponding drive circuit pad group;
• a plurality of signal lines, main bodies of which extend in the first direction;
• and
• first connection lines, each of which is configured to cascade two drive circuit pad groups adjacent in the first direction, wherein
• an orthographic projection of the first connection line on the base substrate not overlapping with an orthographic projection of the signal line on the base substrate;
• wherein the functional element pad group comprises a plurality of pad sub-groups sequentially connected in series;
• and
• the display substrate further comprises drive circuits in binding connection with the drive circuit pad groups, and light-emitting elements in binding connection with the pad sub-groups.