Display panel, display device and method for preparing a display panel

A display device, comprising a display panel;

• wherein the display panel comprises:
• an opening region, a transition region, and a display region;
• wherein the display region at least partially surrounds the opening region, the transition region is disposed between the display region and the opening region;
• and the transition region of the display panel is further provided with at least one wall structure, and the at least one wall structure surrounds the opening region;
• and
• the display panel further comprises:
• a substrate and a sub-pixel array disposed on the substrate and disposed in the display region;
• a first organic encapsulation layer disposed on a side of the sub-pixel array facing away from the substrate and disposed on a side of the at least one wall structure facing the display region;
• a second organic encapsulation layer disposed on a side of the first organic encapsulation layer facing away from the substrate and disposed in the transition region and extends to a portion of the display region;
• and
• a barrier structure configured to separate a second organic encapsulation layer facing the display region from a second organic encapsulation layer facing away from the display region.

A method for preparing a display panel, wherein the display panel comprises:

• a substrate, the substrate comprises a reserved opening region, a transition region and a display region, and the display region at least partially surrounds the reserved opening region, and the transition region is disposed between the display region and the reserved opening region;
• and the method comprises:
• forming a sub-pixel array in the display region of the substrate and forming a wall structure in the transition region;
• forming a first organic encapsulation layer on a side of the sub-pixel array facing away from the substrate, wherein the first organic encapsulation layer is disposed on a side of the wall structure facing the display region;
• forming a second organic encapsulation layer on a side of the first organic encapsulation layer facing away from the substrate, wherein the second organic encapsulation layer is disposed in the transition region and extends to a portion of the display region;
• and
• forming a barrier structure in the second organic encapsulation layer, wherein the barrier structure is configured to separate a second organic encapsulation layer facing the display region from a second organic encapsulation layer facing away from the display region.