A display device comprising: a base layer including a first portion, a second portion extending from the first portion, and a third portion extending from the second portion; light emitting elements including a first light emitting element, a second light emitting element, and a third light emitting element, the light emitting elements disposed on the first portion; a first front signal line disposed on the first portion and electrically connected to the first light emitting element; a second front signal line disposed on the first portion and electrically connected to the second light emitting element; a third front signal line disposed on the first portion and electrically connected to the third light emitting element, wherein the first front signal line, the second front signal line, and the third front signal line are respectively disposed on first, second and third layers, which are different layers from each other; a first rear signal line disposed on the third portion, wherein the first rear signal line and the first front signal line are disposed on a same layer, being said first layer; a second rear signal line disposed on the third portion, wherein the second rear signal line and the second front signal line are disposed on a same layer, being said second layer; a third rear signal line disposed on the third portion, wherein the third rear signal line and the third front signal line are disposed on a same layer, being said third layer; and connection lines that overlap the second portion, wherein at least one of the connection lines electrically connects the first front signal line and the third rear signal line, wherein the connection lines comprise: a first connection line electrically connecting the first front signal line and the third rear signal line; a second connection line electrically connecting the second front signal line and the second rear signal line; and a third connection line electrically connecting the third front signal line and the first rear signal line, wherein the display device further comprises a data driving circuit disposed on the third portion of the base layer, wherein the data driving circuit is electrically connected to the first rear signal line, the second rear signal line, and the third rear signal line to provide respective data signals thereto. a base layer including a first portion, a second portion extending from the first portion, and a third portion extending from the second portion; light emitting elements including a first light emitting element, a second light emitting element, and a third light emitting element, the light emitting elements disposed on the first portion; a first front signal line disposed on the first portion and electrically connected to the first light emitting element; a second front signal line disposed on the first portion and electrically connected to the second light emitting element; a third front signal line disposed on the first portion and electrically connected to the third light emitting element, wherein the first front signal line, the second front signal line, and the third front signal line are respectively disposed on first, second and third layers, which are different layers from each other; a first rear signal line disposed on the third portion, wherein the first rear signal line and the first front signal line are disposed on a same layer, being said first layer; a second rear signal line disposed on the third portion, wherein the second rear signal line and the second front signal line are disposed on a same layer, being said second layer; a third rear signal line disposed on the third portion, wherein the third rear signal line and the third front signal line are disposed on a same layer, being said third layer; and connection lines that overlap the second portion, wherein at least one of the connection lines electrically connects the first front signal line and the third rear signal line, wherein the connection lines comprise: a first connection line electrically connecting the first front signal line and the third rear signal line; a second connection line electrically connecting the second front signal line and the second rear signal line; and a third connection line electrically connecting the third front signal line and the first rear signal line, wherein the display device further comprises a data driving circuit disposed on the third portion of the base layer, wherein the data driving circuit is electrically connected to the first rear signal line, the second rear signal line, and the third rear signal line to provide respective data signals thereto. a first connection line electrically connecting the first front signal line and the third rear signal line; a second connection line electrically connecting the second front signal line and the second rear signal line; and a third connection line electrically connecting the third front signal line and the first rear signal line, wherein the display device further comprises a data driving circuit disposed on the third portion of the base layer, wherein the data driving circuit is electrically connected to the first rear signal line, the second rear signal line, and the third rear signal line to provide respective data signals thereto.