Display substrate and display device

A display substrate, comprising a first display region and a second display region at least partially surrounding the first display region, wherein the display substrate comprises:

• a base substrate;
• a plurality of first light emitting devices, wherein the plurality of first light emitting devices are arranged in an array in a first direction and a second direction on the base substrate and are located in the first display region;
• a plurality of first pixel driving circuits, wherein the plurality of first pixel driving circuits are arranged in an array in the first direction and the second direction on the base substrate and are located in the second display region, and at least a part of the first pixel driving circuits are configured to respectively drive the plurality of first light emitting devices to emit light;
• and
• a plurality of connection wires, wherein at least one of the plurality of connection wires has one end electrically connected to at least one of the first light emitting devices and the other end electrically connected to at least one of the first pixel driving circuits, and the plurality of connection wires are configured to respectively transmit driving signals to the plurality of first light emitting devices,
• wherein the plurality of first light emitting devices are arranged in a plurality of columns in the first direction to form a plurality of pixel column groups, the plurality of pixel column groups comprise a first pixel column group, a second pixel column group and a third pixel column group, and the first pixel column group, the second pixel column group and the third pixel column group are arranged from an edge of the first display region to a center of the first display region;
• wherein the connection wires for transmitting driving signals to the first light emitting devices in the first pixel column group are located in a same transparent conductive layer as the connection wires for transmitting driving signals to the first light emitting devices in the third pixel column group;
• wherein the second display region comprises a first display sub-region and a second display sub-region, and the first display sub-region and the second display sub-region are located on opposite sides of the first display region in the first direction;
• and
• wherein a plurality of first light emitting devices in a first column to an nth column are electrically connected to the first pixel driving circuits located in the first display sub-region through a part of the plurality of connection wires, and a plurality of first light emitting devices in an (n+1)th column to a 2nth column are electrically connected to the first pixel driving circuits located in the second display sub-region through the other part of the plurality of connection wires.