Patent ID: 8865485

Claim:
A method of manufacturing an organic light emitting diode (OLED) display, comprising: preparing a substrate main body; sequentially layering a polycrystalline silicon layer, a gate insulating layer, a doped amorphous silicon layer, and a first metal layer, on the substrate main body; forming the polycrystalline silicon layer pattern that includes the polycrystalline active layer and the first capacitor electrode; forming a gate insulating layer intermediate formed on the polycrystalline silicon layer pattern; forming a first conductive layer intermediate formed on the gate insulating layer intermediate by patterning the polycrystalline silicon layer, the gate insulating layer, the doped amorphous silicon layer and the first metal layer together; forming an interlayer insulating layer on the first conductive layer intermediate; forming a first conductive layer pattern and an interlayer insulating layer pattern exposing a portion of the gate insulating layer intermediate by patterning the first conductive layer intermediate and the interlayer insulating layer; forming a gate insulating layer pattern exposing a portion of the polycrystalline active layer by etching the gate insulating layer intermediate exposed through the first conductive layer pattern and the interlayer insulating layer pattern; and forming a second conductive layer pattern on the polycrystalline active layer and the interlayer insulating layer pattern.