Display panel and method for manufacturing the same, and display device

A method for manufacturing a display panel, comprising:

• forming a display area and a peripheral area surrounding the display area, the display area comprising four corners, each of the four corners having a curved edge, and the peripheral area comprising a first peripheral area and a second peripheral area adjacent to the first peripheral area, wherein forming the peripheral area comprises:
• providing a substrate;
• forming a passivation layer and a first planarization layer above the substrate;
• forming a first dam and a second dam above the substrate, wherein the first dam comprises a corner portion located at the first peripheral area and a straight portion located at the second peripheral area, the first planarization layer being closer to the display area than the first dam, the first dam being a dam closest to the display area, the first dam comprising a first portion and a second portion covering the first portion, the second dam being located on one side of the first dam away from the display area, and the second dam and a part of the first dam being located on the passivation layer,
• forming a second metal layer extending to a surface of the passivation layer away from the substrate and extending to a surface of the first planarization layer away from the substrate,
• forming a conductive layer, a part of the conductive layer extending between the first portion and the second portion, and another part of the conductive layer being located on the second metal layer, and a material of the conductive layer being the same as that of an anode in the display area, and
• forming an encapsulation layer, wherein forming the encapsulation layer comprises forming a first inorganic layer and an organic layer on one side of the first inorganic layer away from the substrate, wherein the first inorganic layer is located above the first planarization layer and the first dam, wherein:
• an edge of an orthographic projection of the first planarization layer on the substrate away from the display area is a first edge, and an edge of an orthographic projection of the first dam on the substrate close to the display area is a second edge,
• in the first peripheral area, a minimum distance between the first edge and the second edge is a first distance, and
• in the second peripheral area, a minimum distance between the first edge and the second edge is a second distance greater than the first distance, and
• the organic layer covers a portion of the first inorganic layer between the first edge and the second edge, and a remaining portion of the first inorganic layer between the first edge and the second edge is not covered by the organic layer.