| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing condition determination method for allowing an organic light emitting function layer to have a target film thickness in manufacturing an organic EL display panel.SOLUTION: In a manufacturing method of an organic EL display panel 100, an organic light emitting function layer is formed by the steps of: arranging a plurality of long banks 15b in parallel to each other with an interval therebetween on a substrate 11; applying an ink including an organic light emitting function layer material dissolved in a solvent on an opening 15c that is a region between the banks 15b adjacent to each other on the substrate 11; and drying the solvent. In a manufacturing condition determination method in the manufacturing method of an organic EL display panel 100, when a contact angle to the bank of the ink with respect to a variable x represented by parameters, such as a film thickness of the organic light emitting function layer, a mass concentration of the ink, the bank interval, and the number of drying times, is denoted as y [°], each parameter with respect to the x is determined such that 40≤y≤70, 24≤x and a relation represented by expression 2 are satisfied.SELECTED DRAWING: Figure 3 |
