ORGANIC ELECTROLUMINESCENCE DISPLAY DEVICE AND METHOD OF MANUFACTURING ORGANIC ELECTROLUMINESCENCE DISPLAY DEVICE

摘要

A method of manufacturing an organic electroluminescent display device includes the steps of: forming a first insulating layer on a substrate; forming a first patterning layer; forming a second patterning layer; forming a trench portion; and forming an electrode layer on the second patterning layer and in the trench portion, wherein in the step of forming the trench portion, an end of the first patterning layer exposed within the trench portion is etched to an outside more than an end of the second patterning layer exposed within the trench portion in a plan view, and in the step of forming the electrode layer, the electrode layer formed within the trench portion is isolated from the electrode layer formed outside of the trench portion.

主权项

1. A method of manufacturing an organic electroluminescent display device, comprising the steps of:
forming a first insulating layer on a substrate having a rectangular display area and a frame area which surrounds an outer periphery of the display area; forming a first patterning layer on the first insulating layer; forming a second patterning layer on the first patterning layer; removing apart of the second patterning layer and the first patterning layer in the frame area to form a trench portion; and forming an electrode layer on the second patterning layer and in the trench portion, wherein in the step of forming the trench portion, an end of the first patterning layer exposed within the trench portion is etched to an outside more than an end of the second patterning layer exposed within the trench portion in a plan view, and in the step of forming the electrode layer, the electrode layer formed within the trench portion which is located on a lower side of the end of the first patterning layer is isolated from the electrode layer formed outside of the trench portion, which is located on an upper side of the end of the first patterning layer.