Display device

A display device comprising:

• a display panel that includes an opening area and a display area that surrounds the opening area in a plan view;
• and
• an electronic element below the display panel, wherein the electronic element corresponds to the opening area and comprises a sensor, a camera, a microphone, a speaker, or a lamp,
• wherein the display panel comprises:
• a substrate that includes a top surface, a bottom surface, and an opening that passes from the top surface to the bottom surface, wherein the opening corresponds to the opening area of the display panel;
• a display element layer over the top surface of the substrate, wherein the display element layer comprises:
• a plurality of display elements arranged in the display area;
• a plurality of pixel electrodes that respectively correspond to the plurality of display elements;
• an intermediate layer over the plurality of pixel electrodes;
• and
• an opposite electrode over the intermediate layer;
• a thin-film encapsulation layer over the plurality of display elements, wherein the thin-film encapsulation layer comprises a first inorganic encapsulation layer, a second inorganic encapsulation layer, and an organic encapsulation layer between the first and second inorganic encapsulation layers;
• a first groove in a first non-display area between the opening area and the display area, wherein the first non-display area surrounds the opening area in the plan view, the first groove passes through multiple layers, wherein a first layer of the multiple layers includes a pair of tips that each protrude toward a center of the first groove and the first groove has an undercut structure;
• a partition wall in the first non-display area, wherein the partition wall includes an organic insulating material and surrounds the opening area in a plan view;
• and
• a planarization layer over the thin-film encapsulation layer, wherein the planarization layer comprises an organic insulating material, wherein, in the first non-display area, a portion of the planarization layer overlaps the organic encapsulation layer, and
• wherein, in the first non-display area, the opposite electrode is separated into a plurality of parts by the pair of tips, and the first inorganic encapsulation layer covers the plurality of parts of the opposite electrode.

A display panel, comprising:

• an opening area and a display area that surrounds the opening area in a plan view
• a substrate that includes a top surface, a bottom surface, and an opening that passes from the top surface to the bottom surface, wherein the opening corresponds to the opening area in the display panel;
• a display element layer over the top surface of the substrate, wherein the display element layer comprises:
• a plurality of display elements arranged in the display area;
• a plurality of pixel electrodes that correspond to the plurality of display elements;
• an intermediate layer over the plurality of pixel electrodes;
• and
• an opposite electrode over the intermediate layer;
• a thin-film encapsulation layer over the plurality of display elements, wherein the thin-film encapsulation layer comprises a first inorganic encapsulation layer, a second inorganic encapsulation layer, and an organic encapsulation layer between the first and second inorganic encapsulation layers;
• a partition wall in a first non-display area between the opening area and the display area, wherein the partition wall surrounds the opening area in the plan view and includes an organic insulating material;
• a metallic layer in a first non-display area, wherein the metallic layer has a shape that surrounds the opening area in a plan view and has multiple layers of Ti/Al/Ti;
• and
• a planarization layer over the thin-film encapsulation layer and comprising an organic insulating material, wherein, in the first non-display area, a portion of the planarization layer overlaps the organic encapsulation layer.