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

A method for manufacturing a display panel, comprising:

• forming a pixel driving circuit layer on a substrate, the pixel driving circuit layer comprising a pixel driving circuit;
• forming an auxiliary conductive portion on the substrate;
• forming a passivation layer, the passivation layer comprising a first passivation layer and a second passivation layer, the first passivation layer formed on the pixel driving circuit layer and the auxiliary conductive portion, and the second passivation layer formed on the first passivation layer;
• patterning the first passivation layer and the second passivation layer so that the second passivation layer and the first passivation layer together define an undercut opening;
• forming a first electrode on the passivation layer, the first electrode electrically connected to the pixel driving circuit;
• forming a common layer on the first electrode, the common layer disconnected in the undercut opening;
• and
• forming a second electrode on the common layer, the second electrode connected in parallel with the auxiliary conductive portion through the undercut opening.