Display substrate, preparation method thereof, and display apparatus

A display substrate, wherein

• in a direction parallel to the display substrate, the display substrate comprises a plurality of sub-pixels, at least one sub-pixel comprising a pixel drive circuit and a light emitting device connected to the pixel drive circuit, wherein the pixel drive circuit at least comprises a drive transistor and a storage capacitor;
• in a direction perpendicular to the display substrate, the display substrate comprises a semiconductor layer, a first conductive layer and a second conductive layer which are sequentially disposed on a substrate;
• the semiconductor layer at least comprises an active layer of the drive transistor;
• the first conductive layer at least comprises a first electrode plate of the storage capacitor, and the second conductive layer at least comprises a second electrode plate of the storage capacitor and an electrode plate connection line;
• the electrode plate connection line is connected to a second electrode plate of an adjacent sub-pixel in a first direction;
• the first direction is a direction of a sub-pixel row;
• the active layer of the drive transistor at least comprises a channel region, and the channel region at least comprises a first channel segment extending along the first direction and a second channel segment extending along a second direction, wherein the second direction is a direction of a sub-pixel column;
• the channel region has a second direction effective length in the second direction, and the second direction effective length is a length of the second channel segment in the second direction;
• and
• there is an overlap region between an orthographic projection of the electrode plate connection line on the substrate and an orthographic projection of the semiconductor layer on the substrate, and a distance between the overlap region and the channel region of the drive transistor is greater than or equal to the effective length in the second direction.