Display panel with color control layer including wall bases having reflective layers on sidewalls thereof

A display panel, comprising:

• a lower display substrate including a plurality of light emitting elements;
• an upper display substrate including a color control layer and disposed on the lower display substrate;
• a plurality of light emitting regions corresponding to the plurality of light emitting elements;
• and
• a non-light emitting region,
• wherein the color control layer includes a wall, the wall including a wall base and at least one functional layer, the wall base including an organic material,
• wherein the wall base includes:
• a first surface parallel to the lower display substrate;
• a second surface parallel to the first surface and disposed closer than the first surface to the lower display substrate;
• and
• a third surface that connects the first surface to the second surface,
• wherein the at least one functional layer includes:
• a first sub-functional layer disposed adjacent to the third surface;
• and
• a second sub-functional layer that extends from the first sub-functional layer in a direction parallel to the first surface and away from the wall base, the second sub-functional layer being disposed adjacent to the first surface,
• wherein, in a plan view, the at least one functional layer overlaps the non-light emitting region and does not overlap at least a portion of the plurality of light emitting regions.