Abstract: A display substrate and a preparation method therefor, and a display device. The display substrate comprises a hole region, a transition region surrounding the hole region, and a display region surrounding the transition region, wherein the transition region is provided with an isolation structure surrounding the hole region, and the isolation structure comprises at least one isolation groove; the display substrate comprises a base, and the isolation groove comprises a groove and a blocking edge arranged on the side of the groove away from the base; and in a direction perpendicular to the base, the transition region comprises a first structure layer and a second structure layer which are sequentially stacked in the direction away from the base, the first structure layer comprises a blocking layer, the groove extends through the second structure layer and exposes at least part of the surface of the blocking layer.

Abstract: A display substrate, a manufacturing method therefor, and a display apparatus are provided. The display substrate includes a first semiconductor layer, a first conductive layer, a second conductive layer, a second semiconductor layer, a third conductive layer, a fourth conductive layer, and a fifth conductive layer disposed on an substrate. The first semiconductor layer includes active layers of a plurality of poly silicon transistors, the first conductive layer includes gates of a plurality of poly silicon transistors, a first electrode plate of a storage capacitor and a first scan signal line. The second conductive layer includes a second electrode plate of the storage capacitor. The second semiconductor layer includes active layers of a plurality of oxide transistors. The third conductive layer includes gates of the plurality of oxide transistors.

Abstract: Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a display region and at least one hole region located in the display region, the hole region includes a function hole and a partition region surrounding the function hole, the partition region is provided with at least one partition dam surrounding the function hole; the partition dam includes a first partition layer disposed on a base substrate and a second partition layer disposed on a side of the first partition layer away from the base substrate, at least one partition layer includes a second sub-layer and a third sub-layer disposed on a side of the second sub-layer away from the base substrate, the third sub-layer has a protrusion with respect to a sidewall of the second sub-layer, and the protrusion and the sidewall of the second sub-layer form an inwardly recessed structure.

Abstract: Provided are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a display region and at least one hole region located in the display region, the hole region includes a function hole and a partition region surrounding the function hole, the partition region is provided with at least one partition dam surrounding the function hole; the partition dam includes a first partition layer disposed on a base substrate and a second partition layer disposed on a side of the first partition layer away from the base substrate, at least one partition layer includes a second sub-layer and a third sub-layer disposed on a side of the second sub-layer away from the base substrate, the third sub-layer has a protrusion with respect to a sidewall of the second sub-layer, and the protrusion and the sidewall of the second sub-layer form an inwardly recessed structure.