There is provided an organic EL display panel having a substrate, a plurality of pixel electrodes arranged in a matrix pattern on the substrate, and a light-emitting layer formed on each pixel electrode. The organic EL display panel includes a power supply auxiliary electrode layer securing an electrode forming region which extends in a row direction or a column direction on at least one of gaps between pixel electrodes adjoining to each other on the substrate in the row or column direction and being formed so as not to come into contact with the pixel electrode adjoining to the electrode forming region, a functional layer configured to be formed so as to extend over the light-emitting layer and the power supply auxiliary electrode layer, and a common electrode layer configured to be formed so as to continuously extend on the functional layer.