A luminescent display panel comprising: a substrate; a first electrode positioned on the substrate; a bank overlapping at least a portion of the first electrode; a first protrusion including a first body positioned on the bank and a second body positioned on the first body; a second protrusion positioned on the bank and not overlapping the first body and the second body; a first organic layer positioned on the substrate and overlapping the first electrode, the bank, an upper surface of the first protrusion and an upper surface of the second protrusion; and a second electrode positioned on the substrate and overlapping the first electrode, the bank, and the first organic layer, wherein the first body has a positive side slope, the second body has a negative side slope and the second protrusion has a positive side slope, wherein as the second body goes from a first surface contacting the first body to a second surface opposite the first surface in a vertical direction, a cross-sectional area of the second body increases, wherein as the first body goes from the first surface contacting the second body to a third surface that is closer to the substrate than the first surface, a cross-sectional area of the first body increases, wherein as the second protrusion goes from a fourth surface to a fifth surface opposite to the fourth surface in a vertical direction, a cross-sectional area of the second protrusion increases, wherein the fifth surface is closer to the substrate than the fourth surface, and characterised in that the luminescent display panel is flexible or foldable and in that it comprises an encapsulation layer comprising a first inorganic layer formed on the entire organic layer and all the sides of the first protrusion including the first body and the second body without a physically broken portion. a substrate; a first electrode positioned on the substrate; a bank overlapping at least a portion of the first electrode; a first protrusion including a first body positioned on the bank and a second body positioned on the first body; a second protrusion positioned on the bank and not overlapping the first body and the second body; a first organic layer positioned on the substrate and overlapping the first electrode, the bank, an upper surface of the first protrusion and an upper surface of the second protrusion; and a second electrode positioned on the substrate and overlapping the first electrode, the bank, and the first organic layer, wherein the first body has a positive side slope, the second body has a negative side slope and the second protrusion has a positive side slope, wherein as the second body goes from a first surface contacting the first body to a second surface opposite the first surface in a vertical direction, a cross-sectional area of the second body increases, wherein as the first body goes from the first surface contacting the second body to a third surface that is closer to the substrate than the first surface, a cross-sectional area of the first body increases, wherein as the second protrusion goes from a fourth surface to a fifth surface opposite to the fourth surface in a vertical direction, a cross-sectional area of the second protrusion increases, wherein the fifth surface is closer to the substrate than the fourth surface, and characterised in that the luminescent display panel is flexible or foldable and in that it comprises an encapsulation layer comprising a first inorganic layer formed on the entire organic layer and all the sides of the first protrusion including the first body and the second body without a physically broken portion.