Patent ID: 7115902

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 formed at each 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; a smoothing film comprising an organic resin formed over said switching elements; a plurality of pixel electrodes formed over said smoothing film and electrically connected to said switching elements through contact holes formed in said smoothing film; and a first driver circuit comprising at least one IC chip electrically connected to said plurality of second signal lines; and a second driver circuit electrically connected to said plurality of first signal lines, wherein said second driver circuit comprises second thin film transistors formed over said substrate.