Organic el display panel manufacturing method and ink drying device

An ink drying device comprising:

• a chamber for receiving a substrate having ink thereon;
• a support base in the chamber for supporting the substrate;
• a rectifying plate comprising a uniform density of through holes;
• a support for positioning the rectifying plate to face the support base such that the rectifying plate is at a predefined distance from column banks of the substrate, and each through hole of the through holes face a corresponding column bank of the column banks;
• a unit for exhausting gas from the chamber;
• and
• a unit for heating the substrate.

A method of manufacturing an organic electroluminescence (EL) display panel, the method comprising:

• forming pixel electrode layers in a matrix on a substrate, wherein the matrix comprises rows and columns;
• arranging column banks, which extend in a column direction, above the substrate along a row direction, wherein each of the column banks is between corresponding edges of adjacent pixel electrode layers in the row direction;
• applying ink containing organic light emitting material to gaps between adjacent ones of the column banks, wherein the applied ink is continuous between ends of the adjacent ones of the column banks in the column direction;
• arranging the substrate with the ink applied and a rectifying plate facing each other, wherein the rectifying plate comprises a uniform density of through holes and a covering mechanism capable of opening and closing each of the through holes, wherein the arranging comprises positioning the rectifying plate at a predefined distance from the column banks, each of the through holes faces a corresponiding column bank of the column banks in a plan view of the substrate, and at least one of the through holes is closed by the covering mechanism for a predefined time;
• opening the through holes using the covering mechanism;
• exhausting gas from an environment including the substrate and the rectifying plate;
• heating the substrate, wherein the heating of the substrate drys the ink to form an organic functional layer;
• and
• forming a counter electrode layer above the organic functional layer.