Display substrate and display device

A display substrate, comprising:

• a base substrate, comprising a first display area and a second display area;
• a first pixel group, located in the first display area and comprising a first sub-pixel, a second sub-pixel, and a third sub-pixel;
• and
• a power line, located in the second display area,
• wherein, in the first pixel group, the first sub-pixel, the second sub-pixel, and the third sub-pixel are arranged in sequence in a first direction;
• the power line extends in a second direction, and a value of an angle between the first direction and the second direction ranges from 30 to 60 degrees;
• the first sub-pixel includes a first edge and a second edge disposed opposite each other in the first direction, and the third sub-pixel includes a third edge and a fourth edge disposed opposite each other in the first direction, the first edge is disposed on a side of the second edge away from the second sub-pixel, the fourth edge is disposed on a side of the third edge away from the second sub-pixel, at least a part of the first edge is curved, and at least a part of the fourth edge is curved.