Method of manufacturing display device and window

1 . A method of manufacturing a display device, the method comprising:

preparing a window member comprising a first window comprising a display area, and a second window adjacent to a first side surface of the first window;

forming a protective member on an upper surface of the window member by:

forming a preliminary protective layer comprising a first protective layer having a first thickness on a first upper surface of the first window and a second protective layer having a second thickness on a second upper surface of the second window, the second thickness being greater than the first thickness; and

pre-curing the preliminary protective layer; and

separating the second window from the first side surface,

wherein during the separating of the second window from the first side surface, at least a portion of the second protective layer is removed together with the second window.

2 . The method of claim 1 , wherein the first window has a thickness that is substantially equal to a thickness of the second window.

3 . The method of claim 1 , wherein the first window has a hardness that is different from a hardness of the second window.

4 . The method of claim 1 , wherein the second window has a width between about 1 mm and about 8 mm in a direction away from the first side surface.

5 . The method of claim 1 , wherein the window member comprises a chemically tempered glass substrate.

6 . The method of claim 1 , wherein the pre-curing of the preliminary protective layer comprises light-curing the preliminary protective layer by a first light.

7 . The method of claim 1 , wherein the preliminary protective layer comprises polyimide, polycarbonate, polyamide, triacetyl cellulose, polymethylmethacrylate, or polyethylene terephthalate.

8 . The method of claim 1 , wherein the separating of the second window from the first side surface comprises removing a second protective portion on the second upper surface from a first protective portion on the first upper surface.

9 . A method of manufacturing a display device, the method comprising:

preparing a window member comprising a first window comprising a display area, and a second window adjacent to a first side surface of the first window;

forming a protective member on an upper surface of the window member by:

forming a preliminary protective layer on a first upper surface of the first window and on a second upper surface of the second window; and

pre-curing the preliminary protective layer; and

separating the second window from the first side surface by:

removing a second protective portion on the second upper surface from a first protective portion on the first upper surface; and

forming a third protective portion that is adjacent to the first protective portion and that does not overlap the first upper surface.

10 . The method of claim 9 , further comprising curing a preliminary protective member comprising the first protective portion and the third protective portion.

11 . The method of claim 10 , wherein the curing of the preliminary protective member comprises light-curing the preliminary protective member by a light.

12 . The method of claim 10 , wherein the first protective portion has a thickness that is equal to or greater than about 10 μm and that is equal to or less than about 80 μm after the curing of the preliminary protective member.

13 . The method of claim 10 , further comprising polishing a second side surface of the first protective portion.

14 . The method of claim 13 , wherein a hardness of the first side surface after the polishing of the second side surface is substantially equal to a hardness of the first side surface in the preparing of the window member.

15 . The method of claim 10 , further comprising polishing the third protective portion.