Patent ID: 7576360

Claim:
A display device comprising: a substrate; a plurality of first signal lines formed over said substrate; a plurality of second signal lines extending across said first signal lines over said substrate; a plurality of switching elements, at least one of said plurality of switching elements being formed at an intersection of said first and second signal lines, each of said switching elements comprising at least one first thin film transistor wherein a gate electrode of said first thin film transistor is electrically connected to one of said plurality of first signal lines and an impurity region of said first thin film transistor is electrically connected to one of said plurality of second signal lines; an interlayer insulating film formed over said plurality of switching elements; a plurality of pixel electrodes formed over said interlayer insulating film, at least one of said plurality of pixel electrodes being electrically connected to said at least one of said plurality of switching elements; and a first driver circuit for supplying signals to said plurality of second signal lines, said first driver circuit comprising at least one IC chip and an analog switch circuit, wherein said analog switch circuit comprises a plurality of second thin film transistors formed over said substrate.