Patent ID: 9136506
Filing Date: 2015-09-15
Classification: H01L

Abstract:
1. A method of manufacturing an organic light-emitting display, the method comprising: performing a first mask process which comprises forming a buffer layer and a semiconductor layer on a substrate, and an active layer of a thin-film transistor and a lower electrode of a capacitor by patterning the semiconductor layer; performing a second mask process which comprises i) forming a first insulating layer covering the active layer and the lower electrode on the substrate, ii) sequentially stacking a transparent conductive material and a first metal on the first insulating layer, and iii) forming a gate electrode, a first electrode pattern configured to form a pixel electrode and a second electrode pattern configured to form an upper electrode of the capacitor by patterning the transparent conductive material and the first metal; performing a third mask process which comprises i) forming a second insulating layer on the substrate on which the gate electrode, the first electrode pattern, and the second electrode pattern, and ii) forming a first gap at peripherals of the first electrode pattern while forming an opening that exposes source and drain regions of the active layer, the first electrode pattern, and the second electrode pattern by patterning the second insulating layer; performing a fourth mask process which comprises i) forming a second metal on the substrate on which the second insulating layer is formed, source and drain electrodes that connect the source and drain regions by patterning the second metal, and ii) removing the first metal on the pixel electrode and the upper electrode; and performing a fifth mask process which comprises i) forming a third insulating layer on the resultant structure of the fourth mask process, and ii) exposing the pixel electrode by forming an opening greater than the opening formed in the second insulating layer by patterning the third insulating layer.