Display device and method of providing thereof

A method of providing a display device, the method comprising:

• providing a display area and a non-display area which is adjacent to the display area;
• and
• providing a pad part in the non-display area and exposed to outside the display device,
• wherein the providing of the pad part comprises:
• providing a conductive layer at which the pad part is exposed to outside the display device, the conductive layer having an upper surface, and
• providing an insulating part on the upper surface of the conductive layer,
• wherein the providing of the insulating part of the pad part includes:
• providing a first insulating layer and a second insulating layer in order from the upper surface of the conductive layer,
• providing an opening in the second insulating layer which exposes a part of an upper surface of the first insulating layer which is furthest from the conductive layer along a thickness direction, to outside the second insulating layer;
• providing an additional insulating layer covering the second insulating layer, in the opening of the second insulating layer, and covering the first insulating layer which is exposed outside of the second insulating layer;
• and
• removing a portion of the additional insulating layer and a portion of the first insulating layer to provide an opening in the first insulating layer which is smaller than the opening in the second insulating layer and a remaining portion of the additional layer which is in the opening of the second insulating layer and in which an opening of the remaining portion is defined,
• wherein the upper surface of the conductive layer is exposed to outside the additional insulating layer through respective openings in the first insulating layer, the second insulating layer and the remaining portion of the additional insulating layer.