Organic el display panel and a method of manufacturing the same

Ink, such as an organic luminescent material flows to different element formation region exceeds the banks, to prevent problems caused color mixing properly, excellent coating-type organic EL display panel of the image display performance can be expected and its production method provide. Specifically, an opening 41 is formed in the planarization film 4, as well as embedded embedded portion 102 into the opening 41, forming a bank 10L to form the buried portion 103 integrally with the main body portion 103. At this time, along the shape of the first electrode 6 between the opening 41 adjacent in the row direction (Y), to form a recess 101 having a sufficient depth to the top of the body 103. When applying an ink containing an organic luminescent material, and held in the recessed portion 101 of the ink overflowing from the element forming region to prevent color mixing of the ink.