APPARATUS AND METHODS TO FORM A PATTERNED COATING ON AN OLED SUBSTRATE

摘要

An apparatus for applying a patterned coating to an OLED substrate in a continuous roll- to-roll vapor based deposition process is provided comprising a vapor deposition source, a processing drum, a drive roller, and a shadow mask wherein the shadow mask comprises a mask line feature that selectively prevents deposition of the coating onto the substrate. Also presented is a method for applying the coating.