Patent ID: 7262085
Filing Date: 2007-08-28
Classification: G02F,H01L

Abstract:
1. A display device comprising: a transparent insulating substrate; a thin-film transistor arranged on the transparent insulating substrate; a pixel electrode comprising a transparent electrode; and an aluminum alloy film for electrically connecting between the thin-film transistor and the pixel electrode, wherein the aluminum alloy film is a multilayer aluminum alloy film comprising: a first aluminum alloy layer comprising an aluminum alloy being substantially free from nitrogen; and a second aluminum alloy layer being arranged on the first aluminum alloy layer and comprising a nitrogen-containing aluminum alloy, and wherein the second aluminum alloy layer has been removed at least in a region where the pixel electrode is in contact with the multilayer aluminum alloy film, and the pixel electrode is directly connected to the first aluminum alloy layer in said region where the second aluminum alloy was removed from the multilayer aluminum alloy film.