A display device comprising: a substrate comprising a display area (DA) and a peripheral area (PA) outside the display area (DA), the peripheral area (PA) comprising a flexible area (BA), and the substrate being flexible around a bending axis (BAX) located in the flexible area and extending in one direction; a data line (DL) and a driving voltage line disposed in the display area (DA); an inorganic insulating layer (IL) on the substrate and which defines an opening (OP) corresponding to the flexible area (BA); wherein: a first conductive layer and a second conductive layer disposed in the peripheral area (PA) and which are spaced apart from each other around the opening (OP); an organic insulating layer (PL1) which covers the first conductive layer and the second conductive layer ; and a connection conductive layer on the organic insulating layer (PL1), wherein the connection conductive layer connects the first conductive layer and the second conductive layer via contact holes (CNT) defined in the organic insulating layer (PL1), the first conductive layer and the second conductive layer comprises a same material as that of one of the data line (DL) and the driving voltage line , and the connection conductive layer comprises a same material as that of the other of the data line (DL) and the driving voltage line . a substrate comprising a display area (DA) and a peripheral area (PA) outside the display area (DA), the peripheral area (PA) comprising a flexible area (BA), and the substrate being flexible around a bending axis (BAX) located in the flexible area and extending in one direction; a data line (DL) and a driving voltage line disposed in the display area (DA); an inorganic insulating layer (IL) on the substrate and which defines an opening (OP) corresponding to the flexible area (BA); wherein: a first conductive layer and a second conductive layer disposed in the peripheral area (PA) and which are spaced apart from each other around the opening (OP); an organic insulating layer (PL1) which covers the first conductive layer and the second conductive layer ; and a connection conductive layer on the organic insulating layer (PL1), wherein the connection conductive layer connects the first conductive layer and the second conductive layer via contact holes (CNT) defined in the organic insulating layer (PL1), the first conductive layer and the second conductive layer comprises a same material as that of one of the data line (DL) and the driving voltage line , and the connection conductive layer comprises a same material as that of the other of the data line (DL) and the driving voltage line . a first conductive layer and a second conductive layer disposed in the peripheral area (PA) and which are spaced apart from each other around the opening (OP); an organic insulating layer (PL1) which covers the first conductive layer and the second conductive layer ; and a connection conductive layer on the organic insulating layer (PL1), wherein the connection conductive layer connects the first conductive layer and the second conductive layer via contact holes (CNT) defined in the organic insulating layer (PL1), the first conductive layer and the second conductive layer comprises a same material as that of one of the data line (DL) and the driving voltage line , and the connection conductive layer comprises a same material as that of the other of the data line (DL) and the driving voltage line . <EOS>