Patent ID: 7567328

Claim:
A liquid crystal display device comprising: a thin film transistor over a substrate, said thin film transistor having a gate electrode; a signal wiring line formed over said substrate, the signal wiring line comprising a first conductive layer on a first insulating film and a second conductive layer on the first insulating film; a gate wiring formed over said substrate and electrically connected to the gate electrode of the thin film transistor; a second insulating film formed over the thin film transistor, the signal wiring line, and the gate wiring; a connecting electrode for electrically connecting the first conductive layer and the second conductive layer on the second insulating film, the connecting electrode crossing the gate wiring with the second insulating film interposed therebetween; a pixel electrode formed over the second insulating film and electrically connected to the thin film transistor; and a common wiring line formed over the second insulating film, wherein a portion of said common wiring line and a portion of said signal wiring line are overlapped with each other, and wherein said portion of the common wiring line and the pixel electrode are arranged to generate an electric field parallel to a surface of the substrate.