Display device

A display device, comprising

• a sub-pixel including a light-emitting element layer,
• the sub-pixel including:
• a first electrode;
• an edge cover overlapping an end of a front face of the first electrode;
• a projection projecting from the front face of the first electrode;
• and
• a functional layer shaped into an island for each of sub-pixels including the sub-pixel, and formed on the front face of the first electrode, wherein
• with respect to the front face of the first electrode where a first height is a height up to a front face of a protrusion of the functional layer provided along an edge of the projection, a second height is a height up to a tip of the projection, and a third height is a height up to a front face of the edge cover, the second height being greater than the first height and smaller than the third height,
• the projection is annular or helical in plan view.