Display panel and manufacturing method thereof

A method of manufacturing a display panel, wherein the display panel comprises an opening area and a non-opening area, the non-opening area includes a gap area surrounding the opening area and a display area surrounding the gap area, and the display area and the opening area are separated from each other by the gap area;

• and
• the method comprises following steps:
• S10, forming a transistor array layer on a substrate, and forming a first retaining wall and a second retaining wall, which correspond to the gap area and surround the opening area, on the substrate, wherein the transistor array layer comprises a first array layer corresponding to the display area and a second array layer corresponding to the opening area, and the second retaining wall is disposed between the opening area and the first retaining wall;
• S20, forming an encapsulation layer corresponding to the non-opening area, wherein the encapsulation layer at least covers the first array layer, and forming a barrier layer corresponding to the opening area and the gap area, wherein the barrier layer at least covers the second array layer;
• S30, forming a touch control layer on the encapsulation layer and the barrier layer;
• and
• S40, removing the substrate, the second array layer, the barrier layer, and the touch control layer, which correspond to the opening area, thereby forming a through-hole.