Light emitting element, display panel, display device, electronic device and method for producing light emitting element

A light emitting element comprising:

• a substrate;
• an interlayer insulating layer on the substrate;
• a first electrode;
• an edge cover covering an end portion of the first electrode and including an opening at a single light emitting region;
• an electroluminescent layer including at least a light emitting layer;
• and
• a second electrode,
• the first electrode, the edge cover, the electroluminescent layer, and the second electrode being layered in this order on the substrate with the interlayer insulating layer interposed between the substrate and the first electrode;
• one electrode out of the first electrode and the second electrode including a reflective electrode;
• a first trench having an indented shape being disposed within the single light emitting region;
• a second trench having an indented shape being disposed within the first trench;
• and
• a drive circuit portion provided on the substrate, the drive circuit portion including a drive transistor connected to the first electrode and configured to supply a drive current to an electroluminescent element configured by the first electrode, the electroluminescent layer, and the second electrode,
• wherein the first electrode is connected to the drive transistor through a contact hole formed in the interlayer insulating layer, the contact hole not being located in the single light emitting region, and
• wherein the interlayer insulating layer includes a first plane being disposed between the first trench and the second trench;
• a second plane being disposed within the second trench, being closer to the substrate than the first plane;
• a third plane disposed between the opening and the first trench, being farther from the substrate than the first plane.