Patent ID: 7619695
Filing Date: 2009-11-17
Classification: G02F

Abstract:
1. A method for manufacturing a liquid crystal display that includes: multiple signal lines and multiple scan lines deployed as matrices on a transparent substrate; pixel regions composed of areas delimited by the signal lines and scan lines; multiple auxiliary capacity lines provided parallel to the scan lines, each in an individual pixel region and equipped with an auxiliary capacity electrode portion; thin film transistors provided in each pixel region; and pixel electrodes that are electrically coupled to the drain electrodes of the thin film transistors; the method comprising: forming on the transparent substrate, by means of a layer of aluminum or aluminum alloy coated with a layer of molybdenum, the gate electrodes of the thin film transistors, the scan lines that couple with the gate electrodes, and the auxiliary capacity lines; forming a first insulating film so as to cover the entire surface of the transparent substrate; removing via plasma etching the first insulating film present at the auxiliary capacity electrode portions; forming a second insulating film so as to cover the entire surface of the transparent substrate; forming a semiconductor layer on the surface of the second insulating film so as to coat the upper portions of the gate electrodes; forming on the surface of the second insulating film: source electrodes for the thin film transistors, signal lines that couple with the source electrodes, drain electrodes for the thin film transistors, and auxiliary capacity upper electrodes positioned over the auxiliary capacity electrode portions; and forming a pixel electrode in each pixel region.