A display device, comprising: a substrate comprising a display area (DA) and a peripheral area (PA) surrounding a periphery of the display area (DA), the peripheral area (PA) comprising a first peripheral area (PA1) and a second peripheral area (PA2); an insulating layer comprising a first insulating layer and a second insulating layer each disposed in the display area (DA), the first peripheral area (PA1) and the second peripheral area (PA2), and a first opening (OP1) penetrating the first insulating layer and the second insulating layer in a region between the first peripheral area (PA1) and the second peripheral area (PA2), the first opening (OP1) separating the first peripheral area (PA1) from the second peripheral area (PA2); a first conductive layer comprising a plurality of first holes (150H1) disposed in the first peripheral area (PA1) and a plurality of second holes (150H2) disposed in the second peripheral area (PA2); and a second conductive layer disposed over the first conductive layer , and comprising a plurality of third holes (160H1) disposed in the first peripheral area (PA1) and a plurality of fourth holes (160H2) disposed in the second peripheral area (PA2), wherein a portion of each first hole (150H1) among the plurality of first holes (150H1) overlaps a portion of a respective third hole (160H1) among the plurality of third holes (160H1), wherein the plurality of second holes (150H2) and the plurality of fourth holes (160H2) are offset from one another; wherein the second insulating layer is disposed over the first insulating layer , and wherein the first conductive layer is disposed over the first insulating layer , and the second conductive layer is disposed over the second insulating layer . a substrate comprising a display area (DA) and a peripheral area (PA) surrounding a periphery of the display area (DA), the peripheral area (PA) comprising a first peripheral area (PA1) and a second peripheral area (PA2); an insulating layer comprising a first insulating layer and a second insulating layer each disposed in the display area (DA), the first peripheral area (PA1) and the second peripheral area (PA2), and a first opening (OP1) penetrating the first insulating layer and the second insulating layer in a region between the first peripheral area (PA1) and the second peripheral area (PA2), the first opening (OP1) separating the first peripheral area (PA1) from the second peripheral area (PA2); a first conductive layer comprising a plurality of first holes (150H1) disposed in the first peripheral area (PA1) and a plurality of second holes (150H2) disposed in the second peripheral area (PA2); and a second conductive layer disposed over the first conductive layer , and comprising a plurality of third holes (160H1) disposed in the first peripheral area (PA1) and a plurality of fourth holes (160H2) disposed in the second peripheral area (PA2), wherein a portion of each first hole (150H1) among the plurality of first holes (150H1) overlaps a portion of a respective third hole (160H1) among the plurality of third holes (160H1), wherein the plurality of second holes (150H2) and the plurality of fourth holes (160H2) are offset from one another; wherein the second insulating layer is disposed over the first insulating layer , and wherein the first conductive layer is disposed over the first insulating layer , and the second conductive layer is disposed over the second insulating layer . <EOS>