Display substrate and display apparatus

A display substrate having a first side for display and a second side opposite to the first side, comprising:

• a base substrate;
• a display area disposed on the base substrate including a first display area that allows light from the first side of the display substrate to be at least partially transmitted to the second side of the display substrate, wherein the first display area includes a first sub-pixel array, the first sub-pixel array includes a plurality of first pixel unit groups arranged in a first direction and a second direction crossing the first direction, a plurality of first signal lines and a plurality of first power lines;
• the first pixel unit group includes at least one first pixel unit;
• each of the plurality of first signal lines extends at least partially along the first direction and is configured to provide a first display signal to the plurality of first pixel units, and the plurality of first signal lines are connected to the first pixel units of the plurality of first pixel unit groups;
• the plurality of first power lines extend at least partially along the first direction and are configured to provide a first power voltage to the plurality of first pixel units, the plurality of first power lines are connected to the first pixel units of the plurality of first pixel unit groups;
• at least one connection line, wherein at least a part of each of the at least one connection line extends along the first direction, and is connected with the first power lines respectively connected to adjacent first pixel unit groups in the first direction;
• and
• at least one transfer electrode, wherein at least a part of each of the at least one transfer electrode extends along the first direction, and is connected with the first signal lines respectively connected to adjacent first pixel unit groups in the first direction;
• wherein the at least one connection line includes a first connection line, and the first connection line is arranged on the same layer as the plurality of first signal lines.