Method for manufacturing display device, display device manufactured thereby, and electronic device including the same
A method for manufacturing a display device may include providing a support layer and a display panel on a digitizer. The display panel may include a folding region that is folded with reference to a folding axis extending in a first direction. The providing of the support layer may include forming an opening penetrating the preliminary support layer by providing a laser or an abrasive agent to one surface of the preliminary support layer. A first width of the opening on the one surface in a second direction and a second width of the opening on another surface in a second direction may be different from each other, and the second direction is perpendicular to the first direction.
1 . A method for manufacturing a display device, the method comprising:
preparing a digitizer;
providing a support layer on the digitizer, the support layer being a single integral monolithic unit; and
providing a display panel on the digitizer, the display panel including:
a folding region that is folded with reference to a folding axis extending in a first direction on the support layer; and
a first non-folding region and a second non-folding region disposed with the folding region disposed between the first and second non-folding regions,
wherein the providing of the support layer comprises:
preparing a preliminary support layer including one surface and another surface facing each other; and
forming a plurality of openings spaced apart from one another, the plurality of openings penetrating the preliminary support layer by providing a laser or an abrasive agent to the one surface of the preliminary support layer, wherein
a first width of each of the openings on the one surface in a second direction and a second width of each of the openings on the another surface in the second direction are different from each other, and
the second direction is perpendicular to the first direction, wherein
the preliminary support layer comprises reinforcing fibers arranged in a direction,
the forming of the openings comprises providing the laser to the one surface of the preliminary support layer, and
a difference between the first width and the second width is in a range of about 10 um to about 20 um.
2 . The method of claim 1 , wherein the first width is smaller than the second width.
3 . The method of claim 1 , wherein
the one surface is adjacent to the digitizer, and
the another surface is adjacent to the display panel.
4 . The method of claim 1 , wherein
the preliminary support layer comprises:
a first support portion corresponding to the first non-folding region;
a second support portion corresponding to the second non-folding region; and
a folding portion corresponding to the folding region, and
each of the openings are disposed in the folding portion.
5 . The method of claim 1 , wherein the abrasive agent comprises a plurality of abrasive particles having an average diameter in a range of about 20 um to about 50 um.
6 . The method of claim 1 , wherein the preparing of the preliminary support layer comprises:
providing a first preliminary support layer including a first reinforcing fiber;
providing a second preliminary support layer including a second reinforcing fiber on the first preliminary support layer;
providing a third preliminary support layer including the first reinforcing fiber on the second preliminary support layer; and
compressing the first preliminary support layer, the second preliminary support layer, and the third preliminary support layer which are sequentially stacked, and
a long axis of the first reinforcing fiber is arranged in the first direction, and
a long axis of the second reinforcing fiber is arranged in the second direction.
7 . The method of claim 1 , wherein on a plane, each of the openings comprise a first edge parallel to a direction and a second edge extending from the first edge and having a curvature.
8 . The method of claim 1 , wherein each of the first width and the second width are less than a width of the folding region when the display device is in an unfolded state.
9 . The method of claim 1 , wherein
the one surface is adjacent to the digitizer,
the another surface is adjacent to the display panel, and
the first width is smaller than the second width.
10 . The method of claim 1 , wherein each of the plurality of openings have a pair of opposing first edges that each extend in the first direction in a plan view and a pair of opposing second edges that extend from each of the first edges and disposed between one of the first edges and another of the first edges.
11 . The method of claim 10 , wherein each of the second edges have a curvature in a plan view.
12 . The method of claim 10 , wherein each of the openings are completely enclosed by a combination of the first edges and the second edges in a plan view.
13 . A method for manufacturing a display device, the method comprising:
preparing a digitizer;
providing a support layer on the digitizer, the support layer being a single integral monolithic unit; and
providing a display panel on the digitizer, the display panel including:
a folding region that is folded with reference to a folding axis extending in a first direction on the support layer; and
a first non-folding region and a second non-folding region disposed with the folding region disposed between the first and second non-folding regions,
wherein the providing of the support layer comprises:
preparing a preliminary support layer including one surface and another surface facing each other; and
forming a plurality of openings spaced apart from one another, the plurality of openings penetrating the preliminary support layer by providing a laser or an abrasive agent to the one surface of the preliminary support layer, wherein
a first width of each of the openings on the one surface in a second direction and a second width of each of the openings on the another surface in the second direction are different from each other, and
the second direction is perpendicular to the first direction, wherein
the forming of the openings comprises providing the abrasive agent to the one surface of the preliminary support layer, and
a difference between the first width and the second width is in a range of about 20 um to about 30 um.
14 . The method of claim 13 , wherein the forming of the openings further comprises providing a patterning film on the one surface of the preliminary support layer before the providing of the abrasive agent.
15 . The method of claim 14 , wherein the patterning film has a hole formed therein and through which the abrasive agent passes.