Patent ID: 8716040

Claim:
A method of manufacturing an organic light emitting diode (OLED) display, comprising: sequentially layering a polycrystalline silicon layer, a gate insulating layer, and a first metal layer on the substrate main body; forming a polycrystalline silicon layer pattern, a gate insulating layer pattern, and a first conductive layer pattern, by patterning the polycrystalline silicon layer, the gate insulating layer, and the first metal layer, the polycrystalline silicon layer pattern comprising an active layer and a first capacitor electrode, and the first conductive layer pattern comprising a gate electrode and a second capacitor electrode disposed on the gate insulating pattern; forming an interlayer insulating layer on the first conductive layer pattern; patterning the interlayer insulating layer to form an interlayer insulating layer pattern, the patterning comprising forming contact holes that expose the active layer and the first capacitor electrode; and forming a second conductive layer pattern on the interlayer insulating layer pattern and in the contact holes, wherein the gate insulating layer pattern is formed in a same pattern as the polycrystalline silicon layer pattern.