Patent ID: 8741677
Filing Date: 2014-06-03
Classification: G02F,H01L

Abstract:
1. A method for manufacturing a display device, comprising the steps of: forming a first conductive film over a substrate; forming a first etching mask over the first conductive film; processing the first conductive film with use of the first etching mask, whereby a gate electrode is formed; removing the first etching mask; forming a gate insulating layer over the gate electrode; forming a semiconductor film over the gate insulating layer; forming a second etching mask over the semiconductor film; processing the semiconductor film with use of the second etching mask, whereby a semiconductor layer is formed; removing the second etching mask; forming a second conductive film over the gate insulating layer to cover the semiconductor layer; forming a third etching mask over the second conductive film; processing the second conductive film with use of the third etching mask, whereby a source electrode and a drain electrode are formed; and removing the third etching mask, wherein one of the source electrode and the drain electrode serves as a pixel electrode, and wherein the other of the source electrode and the drain electrode serves as a signal line.