Abstract: An organic light emitting display panel includes a base substrate; a light emitting device comprising a first electrode, a light emitting layer on the first electrode, and a second electrode on the light emitting layer; a base layer providing a base surface on which the first electrode is located; a supporting layer protruding from the base surface; a sub-electrode spaced from the first electrode, electrically connected to the second electrode, and located on the supporting layer; and a pixel definition layer on the base substrate so as to expose the first electrode and the sub-electrode.