The common power supply line 70 may overlap the first light-emitting driving circuit 30 with the inorganic insulating layer 109 therebetween. The common power supply line 70 may include the same material as the driving voltage line PL. A first end portion 70E1 of the common power supply line 70 may be covered by the seal 400. A second end portion 70E2 that is opposite to the first end portion 70E1 may extend toward the display area DA and may be covered by a conductive film 212.

In an embodiment, the second end portion 70E2 of the common power supply line 70 may further extend toward the display area DA and may contact the first organic insulating layer 111 and/or the second organic insulating layer 113. In an embodiment, the second end portion 70E2 of the common power supply line 70 may be covered by the seal 400, like the first end portion 70E1.

The seal 400 may overlap the first light-emitting driving circuit 30 and the common power supply line 70. The seal 400 may adhere the lower substrate 100 to the upper substrate 300 with the first light-emitting driving circuit 30 and the common power supply line 70 therebetween.