Patent ID: 7964870

Claim:
A display device including a pair of substrates, wherein, on one of the substrates, a plurality of gate signal lines, a plurality of drain signal lines, a plurality of thin-film transistor and a plurality of pixel electrodes are formed comprising: one of the gate signal lines, an insulating film, a semiconductor layer and a conductive layer which are sequentially stacked on the one substrate; a video signal drive circuit connected to one of the drain signal lines, a scanning signal drive circuit connected to one of the gate signal lines, and an electrostatic protection circuit formed between the video signal drive circuit and the drain signal line or between the scanning signal drive circuit and the gate signal line, wherein the electrostatic protection circuit includes a resistive element formed by a wiring comprised of the conductive layer, said resistive element including an intermittent portion and the semiconductor layer, which formed on the intermittent portion, and wherein at least one island shaped conductive layer is formed in the intermittent portion, and wherein the semiconductor layer is connected to the wiring and island shaped conductive layer.