An organic light emitting display (OLED) device, comprising: a display panel comprising a display region where a plurality of pixels are disposed and a pad region that is located adjacent to a first side of the display region, the pad region comprising a bending region located in a portion of the pad region that is adjacent to the display region and a pad electrode region located in a remaining portion of the pad region, pad electrodes being disposed in the pad electrode region, wherein the display panel comprises an upper surface and a lower surface facing opposite to the upper surface; a polarizing layer disposed on the upper surface of the display panel in the display region; a lower protection film disposed on the lower surface of the display panel, the lower protection film comprising: a first lower protection film pattern disposed in the display region; and a second lower protection film pattern disposed in the pad electrode region of the pad region such that the lower surface of the display panel located in the bending region is exposed; and a bending protection layer disposed in the bending region on the upper surface of the display panel, wherein the height of the bending protection layer from the upper surface of the display panel is less than the height of the polarizing layer from the upper surface of the display panel; characterized in that, the bending protection layer comprises a protrusion portion in a peripheral region that is located at the contacting portion between the bending protection layer and the polarizing layer, and in that the height of the protrusion portion from the upper surface of the display panel is greater than the height of the polarizing layer from the upper surface of the display panel. a display panel comprising a display region where a plurality of pixels are disposed and a pad region that is located adjacent to a first side of the display region, the pad region comprising a bending region located in a portion of the pad region that is adjacent to the display region and a pad electrode region located in a remaining portion of the pad region, pad electrodes being disposed in the pad electrode region, wherein the display panel comprises an upper surface and a lower surface facing opposite to the upper surface; a polarizing layer disposed on the upper surface of the display panel in the display region; a lower protection film disposed on the lower surface of the display panel, the lower protection film comprising: a first lower protection film pattern disposed in the display region; and a second lower protection film pattern disposed in the pad electrode region of the pad region such that the lower surface of the display panel located in the bending region is exposed; and a first lower protection film pattern disposed in the display region; and a second lower protection film pattern disposed in the pad electrode region of the pad region such that the lower surface of the display panel located in the bending region is exposed; and a bending protection layer disposed in the bending region on the upper surface of the display panel, wherein the height of the bending protection layer from the upper surface of the display panel is less than the height of the polarizing layer from the upper surface of the display panel; characterized in that, the bending protection layer comprises a protrusion portion in a peripheral region that is located at the contacting portion between the bending protection layer and the polarizing layer, and in that the height of the protrusion portion from the upper surface of the display panel is greater than the height of the polarizing layer from the upper surface of the display panel.