Patent ID: 7554618

Claim:
A liquid crystal display device, comprising: a substrate; a switching element formed on the substrate; a data line connected to the switching element; an interconnecting wire formed on the substrate and insulated from the data line; an interlayer insulating film formed on the substrate so as to cover the switching element, the data line, and the interconnecting wire; an auxiliary capacitor electrode made of high reflectivity metal, which is formed on the interlayer insulating film and connected to the interconnecting wire; an upper insulating film formed on the interlayer insulating film so as to cover the auxiliary capacitor electrode; and a pixel electrode formed on the upper insulating film so as to be connected to another end of the switching element, wherein the interconnecting wire is made of a material different from that of the auxiliary capacitor electrode, and the interlayer insulating film and the upper insulating film have a contact hole which reaches the interconnecting wire.