In addition to being arranged in the display area DA, the first insulating layer 140 may also be arranged in the peripheral area PA. That is, as illustrated in FIGS. 3 to 5, in an exemplary embodiment, the first insulating layer 140 covers a portion of the electrode power supply line VSS and covers a portion of the substrate 100.

For example, in an exemplary embodiment, the first insulating layer 140 covers a portion of the substrate 100 that is closer to the center of the substrate 100 than the electrode power supply line VSS. This is shown, for example, by viewing FIGS. 1 to 4 in conjunction with one another. For example, referring to line B-B′ in FIGS. 2 and 4, it can be seen that when viewing the first insulating layer 140 as it extends in the x-direction, the first insulating layer 140 covers a portion of the substrate 100, then covers a portion of the electrode power supply line VSS, and then terminates at the first end EP1. Thus, the portion of the substrate 100 that is covered by the first insulating layer 140 is closer to the center of the substrate 100 than the electrode power supply line VSS in the x-direction. That is, the first insulating layer 140 covers a portion of the substrate 100 that is closer to the center of the substrate 100 than the electrode power supply line VSS in the x-direction. Stated another way, relative to the center of the substrate 100 in the x-direction, the portion of the substrate 100 that is covered by the first insulating layer 140 is closer than the electrode power supply line VSS.