An organic-light emitting display apparatus, comprising: a flexible base layer defined with a first area including a display area, a second area and a bend portion including a bend allowance section which is curved in a certain bend radius between the first area and the second area of the flexible base layer; an array of thin-film transistors and an array of organic-light emitting diode (OLED) elements disposed in the first area of the flexible base layer, the array of thin-film transistors being configured to control emission of the array of OLED elements; a connection interface provided on an upper side of the second area of the flexible base layer; and a flexible printed circuit film connected to the connection interface, wherein the flexible printed circuit film includes a polymer layer having a first side facing to the upper side of the second area of the flexible base layer and a second side opposite the first side, a first metal layer on the first side of the polymer layer and a second metal layer on the second side of the polymer layer, and a first insulating layer on the first metal layer and a second insulating layer on the second metal layer, wherein the flexible printed circuit film has at least one driver integrated circuit (D-IC) provided on the first side of the polymer layer, wherein the polymer layer includes at least one via hole, wherein the first metal layer includes at least one conductive line on the first side of the polymer layer and the second metal layer includes at least one other conductive line on the second side of the polymer layer and wherein the least one conductive line is connected to the at least one other conductive line through the at least one via hole, wherein the flexible printed circuit film includes a scribed edge, wherein the polymer layer and the at least one conductive line in the first metal layer and/or the at least one other conductive line in the second metal layer extend to the scribed edge which cuts through the first and second sides of the polymer layer, wherein the at least one conductive line in the first metal layer includes a contact area, wherein the contact area is a portion of the at least one conductive line that is exposed through the first insulating layer, wherein the contact area is connected to the connection interface, and wherein the at least one conductive line or the at least one other conductive line includes a valley portion, wherein the valley portion is a portion of a respective conductive line that extends to the scribed edge and is exposed through a respective insulating layer on the respective conductive line. a flexible base layer defined with a first area including a display area, a second area and a bend portion including a bend allowance section which is curved in a certain bend radius between the first area and the second area of the flexible base layer; an array of thin-film transistors and an array of organic-light emitting diode (OLED) elements disposed in the first area of the flexible base layer, the array of thin-film transistors being configured to control emission of the array of OLED elements; a connection interface provided on an upper side of the second area of the flexible base layer; and a flexible printed circuit film connected to the connection interface, wherein the flexible printed circuit film includes a polymer layer having a first side facing to the upper side of the second area of the flexible base layer and a second side opposite the first side, a first metal layer on the first side of the polymer layer and a second metal layer on the second side of the polymer layer, and a first insulating layer on the first metal layer and a second insulating layer on the second metal layer, wherein the flexible printed circuit film has at least one driver integrated circuit (D-IC) provided on the first side of the polymer layer, wherein the polymer layer includes at least one via hole, wherein the first metal layer includes at least one conductive line on the first side of the polymer layer and the second metal layer includes at least one other conductive line on the second side of the polymer layer and wherein the least one conductive line is connected to the at least one other conductive line through the at least one via hole, wherein the flexible printed circuit film includes a scribed edge, wherein the polymer layer and the at least one conductive line in the first metal layer and/or the at least one other conductive line in the second metal layer extend to the scribed edge which cuts through the first and second sides of the polymer layer, wherein the at least one conductive line in the first metal layer includes a contact area, wherein the contact area is a portion of the at least one conductive line that is exposed through the first insulating layer, wherein the contact area is connected to the connection interface, and wherein the at least one conductive line or the at least one other conductive line includes a valley portion, wherein the valley portion is a portion of a respective conductive line that extends to the scribed edge and is exposed through a respective insulating layer on the respective conductive line.