OLED Method of manufacturing the fine metal mask for OLED panel using one-step wet etching technology

摘要

A method for manufacturing a fine metal mask (FMM) for manufacturing an OLED panel using one-step wet etching technology is disclosed. The FMM manufacturing method of Example 2 comprises: forming a metal layer for manufacturing an FMM for manufacturing an OLED panel, and photoresist on the upper and lower portions of the metal layer, respectively; and the metal layer coated with photoresist on the upper and lower portions is supported in an etchant, spaced apart from the metal layer by a certain distance to form a plurality of holes of the FMM for manufacturing the OLED panel, and at the upper and lower ends of the metal layer at the voltage of an external electric field. A one-step wet etching technique is performed by positioning the cathode (-) electrode and the anode (+) electrode, respectively, operated by the It includes the step of manufacturing an FMM for manufacturing an OLED panel using. Using a one-step wet etching process using an external electric field on the anode (+) and cathode (-) electrodes located at the top and bottom of the FMM material metal (Invar) to form a plurality of holes of the FMM for OLED panel manufacturing. It provides an FMM manufacturing method, and reduces the number of steps to a one-step wet etching process compared to the existing two-step wet etching process in order to manufacture an FMM for manufacturing an existing OLED panel, thereby reducing the manufacturing cost of the FMM and improving the yield.