Display panel and display device including display panel

A display panel, comprising:

• a substrate having an opening;
• a plurality of display elements arranged on the substrate, the plurality of display elements surrounding the opening area, and each of the plurality of display elements including a pixel electrode, an opposite electrode, and an intermediate layer interposed between the pixel electrode and the opposite electrode;
• a multilayer film comprising a first insulating layer arranged between the substrate and the pixel electrode and a second insulating layer disposed on the first insulating layer;
• and
• an encapsulating layer covering the plurality of display elements,
• wherein the multilayer film comprises a first groove that surrounds the opening and is concave with respect to a depth direction of the multilayer film, and
• wherein the first groove has an undercut structure in which a lower width of the first groove is greater than an upper width of the first groove.

A display device, comprising:

• a substrate having an opening area and a display area at least partially surrounding the opening area;
• a plurality of display elements arranged in the display area, each display element comprising a pixel electrode, an opposite electrode, and an intermediate layer interposed between the pixel electrode and the opposite electrode;
• a multilayer film comprising an organic insulating layer disposed between the substrate and the pixel electrode and an inorganic insulating layer disposed on the organic insulating layer, and
• a thin film encapsulation layer covering the plurality of display elements and comprising at least one organic encapsulation layer and at least one inorganic encapsulation layer,
• wherein the multilayer film comprises a first groove that is located between the opening area and the display area, and
• wherein the first groove has an undercut structure.