Display substrate and display device

A display device, comprising a display substrate, the display substrate comprising:

• a display region and a peripheral region located at a periphery of the display region;
• wherein the peripheral region comprises a first bezel region and a second bezel region arranged opposite to each other along a first direction;
• the display region is located between the first bezel region and the second bezel region, the display region comprises a first display region and a second display region, the first display region comprises a first sub-region and a second sub-region, at least a part of the second sub-region is located in a same row as the second display region along the first direction, and the first sub-region and the second display region are located in different rows along the first direction;
• the display substrate further comprising:
• a plurality of first scanning driving units and a plurality of first scanning lines;
• wherein the first scanning driving units are located in the first bezel region;
• the first scanning lines comprise a first scanning layer and a second scanning layer;
• the plurality of first scanning lines comprising a plurality of first target scanning lines, at least a part of each of the first target scanning lines is located in the second sub-region, and in each of the first target scanning lines, a first end of the first scanning layer is coupled to a first end of the second scanning layer, and is coupled to a corresponding first scanning driving unit of the first scanning driving units, a second end of the first scanning layer is coupled to a second end of the second scanning layer, the first ends are located in the first bezel region, and the second ends are located in the second bezel region.