Display substrate and preparation method therefor, and display apparatus

A display substrate, comprising:

• a plurality of display units, wherein each of the display units comprises a display area and a transparent area, and the display area comprises a plurality of sub-pixels;
• in a direction perpendicular to the display substrate, each of the sub-pixels comprises a first metal layer, a metal oxide layer, a second metal layer and a third metal layer which are disposed on a substrate, the first metal layer comprises a first polar plate, the metal oxide layer comprises a second polar plate, the second metal layer comprises a first scanning line and a second scanning line which extend in a horizontal direction and define a display row, and the third metal layer comprises a third polar plate, and a first power line, a second power line, a compensating line and data lines which extend in a vertical direction and define the plurality of sub-pixels;
• there is an overlapping area between an orthographic projection of the second polar plate on the substrate and an orthographic projection of the first polar plate on the substrate to form a first storage capacitor, there is an overlapping area between an orthographic projection of the third polar plate on the substrate and the orthographic projection of the second polar plate on the substrate to form a second storage capacitor, and the third polar plate is connected to the first polar plate through a via hole;
• and the first power line, the second power line, the compensating line and the data lines all comprise vertical straight line segments and horizontal fold line segments, the vertical straight line segments are arranged between the first scanning line and the second scanning line in the display row, and the horizontal fold line segments are arranged between the first scanning lines and the second scanning lines in an adjacent display rows, allowing the display areas in the adjacent display rows staggered, and the transparent areas in the adjacent display rows staggered.