Patent ID: 7858434
Filing Date: 2010-12-28
Classification: H01L

Abstract:
1. A method of manufacturing an organic thin film transistor substrate, comprising: forming a gate metal pattern including a gate electrode on a surface of a substrate; forming a gate insulating layer and a data metal pattern, the data metal pattern including a data line, a source electrode, a drain electrode, a data pad electrode, wherein the forming includes using a first imprint mold having a stepped height; forming a bank-insulating layer having a stepped height on the gate insulating layer and the data metal pattern by using a second imprint mold having a stepped height; and forming a pixel electrode within an area defined by the bank-insulating layer, wherein the forming of the gate insulating layer and the data metal pattern comprises: forming an insulating layer and a data conductive layer by sequentially depositing an insulating material and a metallic material on the gate insulating layer; forming a photoresist layer comprised of a photosensitive organic material on the data conductive layer; disposing the first imprint mold on the photoresist layer; establishing in the photoresist layer a photoresist pattern having a plurality of thicknesses by pressing the first imprint mold against the photoresist layer; removing the first imprint mold; and exposing the gate pad electrode, by etching the insulating layer and the data conductive layer using the photoresist pattern, and forming the data line, the source electrode, the drain electrode, and the data pad electrode by patterning the data conductive layer.