A display device comprises electrodes spaced apart from one another in a first direction and in a second direction intersecting the first direction, each of the electrodes having a shape extending in the second direction, a first insulating layer disposed on the electrodes, light-emitting elements disposed on the first insulating layer, each of the light-emitting elements including ends disposed on the electrodes spaced apart from one another in the first direction, and a second insulating layer at least partially disposed on the light-emitting elements. The second insulating layer comprises extended portions extending in the second direction, and at least one pattern portion connected to the extended portions. The at least one pattern portion includes a part having a width greater than a width of each of the extended portions in the first direction.