An organic light emitting 
display device is disclosed. The organic light emitting 
display device includes: an organic light emitting display panel defined into a display area for displaying an image and a non-display area surrounding the display area; a 
chip-on-film loaded with a driver IC 
chip, which is configured to drive the organic light emitting display panel, and attached to a pad portion which is formed on the non-display area of the organic light emitting display panel; and a 
printed circuit board configured to apply signals to the driver IC 
chip and attached to one edge of the chip-on-film, wherein the organic light emitting display panel includes a dummy pad portion which is formed on the non-display area in the same configuration as the pad portion and in opposition to the pad portion.