Display panel, display device and method for manufacturing display panel

A method for manufacturing a display panel, comprising steps of:

• providing an array substrate, wherein the array substrate comprises an underlayer substrate and a lap layer that are sequentially disposed, and the lap layer comprises a lap portion;
• forming an anode layer on the array substrate, and forming a first opening on the anode layer at a position corresponding to the lap portion to expose the lap portion;
• forming a pixel definition layer on the array substrate and the anode layer, and forming a second opening on the pixel definition layer at a position corresponding to the first opening;
• forming a fence layer on the pixel definition layer, wherein the fence layer comprises a fence portion so that the fence portion extends along an edge of the second opening;
• and
• depositing a cathode layer on the pixel definition layer and the fence layer so that the cathode layer is electrically connected to the lap portion through the first opening and the second opening.