Abstract: In a method of measuring a life time of a display panel, pixels each including a first sub-pixel emitting light of a first color are disposed in the display panel. The display panel includes a first region in which at least one pixel including a first sub-pixel emitting light of the first color is located and a second region not overlapping with the first region and having at least one pixel located therein. The method includes a first step in which a first sub-pixel in the first region emits light and a first sub-pixel in the second region does not emit light while the first sub-pixel emits light, and a second step in which a data voltage for displaying an image of the same grayscale is applied to the first sub-pixel located in the first region and the first sub-pixel located in the second region.

Abstract: A degradation compensator including a compensation factor determiner configured to determine a compensation factor based on a distance between adjacent sub-pixels, and a data compensator configured to apply the compensation factor to a stress compensation weight to generate compensation data for compensating image data.

Abstract: A degradation compensator including a compensation factor determiner configured to determine a compensation factor based on a distance between adjacent sub-pixels, and a data compensator configured to apply the compensation factor to a stress compensation weight to generate compensation data for compensating image data.

Abstract: A method for evaluating a lifespan of an organic light emitting display panel includes: aging an organic light emitting display panel, including first light emitting elements for emitting a first color, second light emitting elements for emitting a second color, and third light emitting elements for emitting a third color, during a preset aging period by displaying the first color in a first pattern area of the organic light emitting display panel and displaying a fourth color in a second pattern area of the organic light emitting display panel; measuring luminances of the first pattern area and the second pattern area by displaying the first color in the first pattern area and the second pattern area during a measurement period; and calculating a lifespan of the first light emitting elements based on the measured luminance of the first pattern area and the measured luminance of the second pattern area.

Abstract: A degradation compensator including a compensation factor determiner configured to determine a compensation factor based on a distance between adjacent sub-pixels, and a data compensator configured to apply the compensation factor to a stress compensation weight to generate compensation data for compensating image data.