Disclosed is a display device which includes: a substrate having a first edge portion and a second edge portion; a plurality of light-emitting elements over the substrate; a passivation film over the plurality of light-emitting elements; a barrier layer over the passivation film; and a touch sensor over the barrier layer. The barrier layer has a first sidewall along the first edge portion and a second sidewall along the second edge portion, and a first angle between a top surface of the substrate and the first sidewall is different from a second angle between the top surface and the second sidewall.