Display device and manufacturing method thereof

A display device, which is an in-foldable display wherein a display surface thereof is folded to face inward, the display device comprising:

• a display panel including a front surface and a rear surface opposite to the front surface, where the display panel displays an image on the front surface thereof;
• a polarizing member disposed on the front surface of the display panel;
• a cover window disposed on the polarizing member;
• a polymer base layer including a first surface and a second surface opposite to facing the first surface, and disposed on the rear surface of the display panel;
• and
• a heat radiation member disposed under the polymer base layer,
• wherein the polymer base layer includes a first outer side surface adjacent to the first surface, a second outer side surface adjacent to the second surface and spaced outward from the first outer side surface, and a cut surface disposed between the first outer side surface and the second outer side surface, and
• a third outer side surface, which is an outer side surface of the display panel, is aligned with a surface extending from the second outer side surface.

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

• preparing a first laminate including a display panel and a polymer base layer disposed on the display panel;
• irradiating one surface of the polymer base layer with a first laser to form a hole portion in which a part of the one surface is recessed;
• and
• irradiating the hole portion with a second laser different from the first laser to form a second laminate by cutting a part of the polymer base layer and a part of the display panel.