A display device includes a display area including a pixel array part, a connection area including a connection terminal part and a bending area including first and second connection lines disposed between the pixel array part and the connection terminal part. Each of the first connection line and the second connection line includes a first layer wiring on a first layer and a second layer wiring on a second layer different from the first layer, the first layer wiring being disposed obliquely and rightward to an extending direction of the first connection line and the second connection line, the second layer wiring being disposed obliquely and leftward to the extending direction and connected to the first layer wiring. The first layer wiring of the first connection line and the second layer wiring of the second connection line are disposed to intersect each other.