COATING METHOD, AND ORGANIC ELECTROLUMINESCENCE ELEMENT

摘要

A coating method is provided for forming a thin film which has stable film thickness from a low-viscosity coating liquid by use of a slit-type die coater. An organic electronic element is also provided which is prepared by the coating method. In the coating method, a slit-type die coater is placed above a base material, the tip portion of the lip of the slit-type die coater is brought close to the base material to form a bead between the base material and the slit-type die coater, and the slit-type die coater and the base material are moved relatively to each other to allow the coating liquid to flow out through the outlet of the slit at the tip of the lip to coat the base material in at least two stripes. The coating method is characterized in that at least one groove is provided within the coating region of the coating breadth of the tip of the lip, and the pressure of the coating liquid in the bead at the slit outlet is kept negative or zero for coating in a stripe state.