Display substrate and display apparatus

A display substrate, comprising:

• a base substrate comprising a display area and a peripheral area located on at least a first side of the display area;
• a plurality of pixel units arranged in an array along a first direction and a second direction in the display area of the base substrate, wherein the pixel unit comprises a pixel driver circuit and a light-emitting device electrically connected to the pixel driver circuit, and the light-emitting device comprises a cathode, an anode, and a light-emitting layer disposed between the cathode and the anode;
• an anode line located in the peripheral area and configured to supply an anode voltage;
• and
• a cathode line located in the peripheral area and electrically connected to the cathode,
• wherein the cathode line substantially surrounds the display area, and the cathode is electrically connected to the cathode line at a plurality of positions;
• and
• wherein the cathode line comprises a first cathode sub-line located in a same layer as the anode, and an orthographic projection of the first cathode sub-line on the base substrate partially overlaps with an orthographic projection of the anode line on the base substrate.