A method for aging an organic light emitting display includes estimating a lifespan curve of a display panel based on at least one initial aging profile of the display panel, correcting at least one of a target luminance or a target white color coordinates of the display panel such that the estimated lifespan curve corresponds to a target lifespan curve, and setting a lifespan look up table by storing at least one of the correction value of the target luminance or the correction value of the target white color coordinates.