Patent ID: 8817223

Claim:
A method for fabricating a flexible display device comprising: preparing a glass substrate having a display region and a non-display region defined on a front surface thereof; forming a display device on the display region defined on the front surface of the glass substrate; preparing a metal foil substrate; bonding the metal foil substrate to the glass substrate such that a front surface of the metal foil substrate faces the front surface of the glass substrate so as to seal the display device to prevent moisture from being introduced into the display device, when the metal foil substrate is bonded to the glass substrate, the metal foil substrate does not overlap a portion of the non-display region on which a display device driving unit is to be disposed; attaching a first passivation film on a region of a flat rear surface of the glass substrate, the region corresponding to a part or all of the non-display region defined on the front surface of the glass substrate, and attaching a second passivation film on an entire rear surface of the metal foil substrate; performing a first etching on the flat rear surface of the glass substrate by using the first passivation film as a mask to reduce a thickness of the display region of the glass substrate without reducing a thickness of the non-display region of the glass substrate that is covered by the first passivation film, thereby forming a non-flat rear surface; removing the first passivation film, and performing a second etching on the entire non-flat rear surface of the glass substrate to reduce the thickness of the display region and the thickness of the non-display region to a predetermined thickness that allows the glass substrate to be curved after the metal foil substrate is bonded to the glass substrate; removing the second passivation film; mounting the display device driving unit on the non-display region defined on the front surface of the glass substrate; and the bonding the metal foil substrate is to bond the metal foil by forming an adhesive along edges of the display device.