A display device comprising: a substrate; and a display element layer on one surface of the substrate, wherein the display element layer comprises: first and second electrodes (EL1, EL2) extending along a first direction and spaced apart from each other in a second direction different from the first direction; and light emitting elements electrically connected to the first electrode and the second electrode, wherein the first electrode has, in a plan view, a first convex portion convex toward the second electrode and a first concave portion concave in a direction away from the second electrode, wherein the second electrode has, in the plan view, a second convex portion convex toward the first electrode and a second concave portion concave in a direction away from the first electrode, wherein the second concave portion has a first sub concave portion (SCP2-1) alternately arranged with the first concave portion along the first direction and a second sub concave portion (SCP2-2) aligned with the first concave portion in the second direction, and wherein the light emitting elements comprise, based on an imaginary extension line extending in the first direction between the first electrode and the second electrode, a first light emitting element aligned with the first concave portion in the second direction, and a second light emitting element aligned with the second concave portion in the second direction and a third light emitting element between the first concave portion and the second sub concave portion (SCP2-2). a substrate; and a display element layer on one surface of the substrate, wherein the display element layer comprises: first and second electrodes (EL1, EL2) extending along a first direction and spaced apart from each other in a second direction different from the first direction; and light emitting elements electrically connected to the first electrode and the second electrode, first and second electrodes (EL1, EL2) extending along a first direction and spaced apart from each other in a second direction different from the first direction; and light emitting elements electrically connected to the first electrode and the second electrode, wherein the first electrode has, in a plan view, a first convex portion convex toward the second electrode and a first concave portion concave in a direction away from the second electrode, wherein the second electrode has, in the plan view, a second convex portion convex toward the first electrode and a second concave portion concave in a direction away from the first electrode, wherein the second concave portion has a first sub concave portion (SCP2-1) alternately arranged with the first concave portion along the first direction and a second sub concave portion (SCP2-2) aligned with the first concave portion in the second direction, and wherein the light emitting elements comprise, based on an imaginary extension line extending in the first direction between the first electrode and the second electrode, a first light emitting element aligned with the first concave portion in the second direction, and a second light emitting element aligned with the second concave portion in the second direction and a third light emitting element between the first concave portion and the second sub concave portion (SCP2-2).