Display substrate, display panel and manufacturing method thereof

A method for manufacturing a display panel, comprising:

• forming a substrate;
• forming an anti-reflection layer and an adhesive layer on a display side of the substrate;
• performing a single perforating process on the substrate, the anti-reflection layer and the adhesive layer to simultaneously form a first through hole in the adhesive layer, a second through hole in the anti-reflection layer and a through hole in the substrate;
• and
• forming a cover plate on a side of the adhesive layer away from the substrate, wherein
• forming the anti-reflection layer and the adhesive layer on the display side of the substrate, comprises:
• providing a release film;
• sequentially forming the anti-reflection layer and the adhesive layer on the release film, wherein an orthographic projection of the adhesive layer on the substrate is rectangular with each of four corners of the rectangular orthographic projection being a rounded corner;
• forming a protective film on a side of the adhesive layer away from the anti-reflection layer;
• removing the release film, and attaching an exposed surface of the anti-reflection layer to a surface on the display side of the substrate;
• before forming the cover plate on the side of the adhesive layer away from the substrate, the method further comprises:
• stripping off the protective film on a side of the adhesive layer away from the anti-reflection layer;
• after forming the cover plate on the side of the adhesive layer away from the substrate, the method further comprises:
• curing the adhesive layer through an ultraviolet irradiation process.