Method of manufacturing a display device
A manufacturing method of a display device includes providing a work panel including a display panel including a folding area, and a carrier film disposed under the display panel and including a first area and a second area, wherein a peeling tape is attached to the first area and the second area is adjacent to the first area, and cutting the work panel by irradiating a laser beam on to the work panel. The cutting of the work panel includes irradiating the laser beam along a first cutting line corresponding to the first area under a first condition, and irradiating the laser beam along a second cutting line corresponding to the second area under a second condition different from the first condition.
1. A method of manufacturing a display device, comprising:
providing a work panel comprising a display panel including a folding area and a carrier film disposed under the display panel and including a first area and a second area, wherein a peeling tape is attached to the first area, and the second area is adjacent to the first area; and
cutting the work panel by irradiating a laser beam on to the work panel, the cutting of the work panel comprising:
irradiating the laser beam along a first cutting line corresponding to the first area under a first condition; and
irradiating the laser beam along a second cutting line corresponding to the second area under a second condition, the second condition being different from the first condition.
2. The method of claim 1 , wherein the first condition is different from the second condition in at least one of a speed, a power, a frequency, and a pulse width of the laser beam.
3. The method of claim 1 , wherein
the laser beam is irradiated at a first speed under the first condition, and
the laser beam is irradiated at a second speed faster than the first speed under the second condition.
4. The method of claim 3 , wherein the first speed is equal to or greater than about 1 mm/s and equal to or less than about 300 mm/s.
5. The method of claim 1 , wherein the cutting of the work panel comprises irradiating the laser beam along the first cutting line and the second cutting line above a rear surface of the work panel.
6. The method of claim 1 , further comprising, after the cutting of the work panel:
attaching the peeling tape to the first area; and
removing the carrier film from the display panel.
7. The method of claim 1 , wherein the first cutting line has a length equal to or greater than about 1.0 cm and equal to or less than about 1.5 cm.
8. The method of claim 1 , wherein
a first side surface is formed in the work panel by the irradiating of the laser beam under the first condition,
the first side surface comprises:
a first sub-side surface corresponding to the carrier film; and a second sub-side surface disposed on the first sub-side surface, and
the second sub-side surface includes an inclined surface inclined at an angle with respect to the first sub-side surface.
9. The method of claim 8 , wherein the angle between the first sub-side surface and the inclined surface is equal to or greater than about 100° and equal to or less than about 150°.
10. The method of claim 8 , wherein the inclined surface is a convex inclined surface protruded from the first side surface.
11. The method of claim 1 , wherein
a second side surface is formed in the work panel by the irradiating of the laser beam under the second condition,
the second side surface comprises:
a third sub-side surface overlapping the carrier film; and
a fourth sub-side surface overlapping the display panel, and
an angle between the third sub-side surface and the fourth sub-side surface is equal to or greater than about 170° and equal to or less than about 180°.
12. A method of manufacturing a display device, comprising:
providing a work panel comprising a display panel including a folding area and a carrier film disposed under the display panel and including a first area and a second area, wherein a peeling tape is attached to the first area, and the second area is adjacent to the first area; and
cutting the work panel by irradiating a laser beam on to the work panel, the cutting of the work panel comprising:
irradiating the laser beam along a first cutting line corresponding to the first area under a first condition to form a first side surface in the work panel; and
irradiating the laser beam along a second cutting line corresponding to the second area under a second condition different from the first condition,
wherein the first side surface comprises:
a first sub-side surface corresponding to the carrier film and including a flat surface;
and a second sub-side surface including an inclined surface adjacent to the first sub-side surface and inclined at a first angle with respect to the flat surface.
13. The method of claim 12 , wherein the first condition is different from the second condition in at least one of a speed, a power, a frequency, and a pulse width of the laser beam.
14. The method of claim 12 , wherein
the laser beam is irradiated at a first speed under the first condition, and
the laser beam is irradiated at a second speed faster than the first speed under the second condition.
15. The method of claim 12 , wherein the first angle is equal to or greater than about 100° and equal to or less than about 150°.