A display panel comprising: a substrate comprising a first area, a second area, and a third area between the first area and the second area; a stacked structure corresponding to a plurality of display elements in the second area, the stacked structure comprising a pixel electrode, an opposite electrode, and an intermediate layer between the pixel electrode and the opposite electrode; a plurality of grooves in the third area, wherein: the stacked structure comprises at least one organic material layer that is segmented by the plurality of grooves, at least one groove of the plurality of grooves is defined in a first multi-layer comprising a first lower layer (LL, LL', LL") and a first upper layer (UL, UL', UL"), and the first lower layer comprises a first sub-lower layer comprising an organic insulating material and a second sub-lower layer under the first sub-lower layer, a transistor between the substrate and the plurality of display elements; a first organic insulating layer and a second organic insulating layer being located between the transistor and the pixel electrode; a pixel-defining layer on the pixel electrode; and a second multi-layer comprising a second lower layer and a second upper layer, wherein a first groove of the plurality of grooves is defined in the second multi-layer, wherein the second lower layer comprises a third sub-lower layer comprising the same material as the pixel-defining layer and a fourth sub-lower layer comprising the same material as the second organic insulating layer, wherein the first groove overlaps bypass portions of a plurality of data lines across the third area and the bypass portions extend along an edge of the first area, and wherein the first upper layer comprises a pair of tips protruding toward a centre of the at least one groove. a substrate comprising a first area, a second area, and a third area between the first area and the second area; a stacked structure corresponding to a plurality of display elements in the second area, the stacked structure comprising a pixel electrode, an opposite electrode, and an intermediate layer between the pixel electrode and the opposite electrode; a plurality of grooves in the third area, wherein: the stacked structure comprises at least one organic material layer that is segmented by the plurality of grooves, at least one groove of the plurality of grooves is defined in a first multi-layer comprising a first lower layer (LL, LL', LL") and a first upper layer (UL, UL', UL"), and the first lower layer comprises a first sub-lower layer comprising an organic insulating material and a second sub-lower layer under the first sub-lower layer, the stacked structure comprises at least one organic material layer that is segmented by the plurality of grooves, at least one groove of the plurality of grooves is defined in a first multi-layer comprising a first lower layer (LL, LL', LL") and a first upper layer (UL, UL', UL"), and the first lower layer comprises a first sub-lower layer comprising an organic insulating material and a second sub-lower layer under the first sub-lower layer, a transistor between the substrate and the plurality of display elements; a first organic insulating layer and a second organic insulating layer being located between the transistor and the pixel electrode; a pixel-defining layer on the pixel electrode; and a second multi-layer comprising a second lower layer and a second upper layer, wherein a first groove of the plurality of grooves is defined in the second multi-layer, wherein the second lower layer comprises a third sub-lower layer comprising the same material as the pixel-defining layer and a fourth sub-lower layer comprising the same material as the second organic insulating layer, wherein the first groove overlaps bypass portions of a plurality of data lines across the third area and the bypass portions extend along an edge of the first area, and wherein the first upper layer comprises a pair of tips protruding toward a centre of the at least one groove.