Patent ID: 6979839

Claim:
An electro-optical device, comprising: a plurality of scanning lines and a plurality of data lines; a combination of a pixel thin film transistor and a pixel electrode provided corresponding to each crossing between the scanning lines and the data lines; a conductive interlayer electrically connected between the pixel thin film transistor and a pixel electrode; and a scanning line driving circuit comprising: a plurality of thin film transistors respectively having a semiconductor layer and a gate electrode being opposed to the semiconductor layer, the gate electrode composed by a gate lead and formed by the same film as a gate electrode of the pixel thin film transistor; a first electrodes being electrically connected to the corresponding semiconductor of the thin film transistors through the corresponding first contact hole; a second electrodes being electrically connected to the corresponding semiconductor of the thin film transistors through the corresponding second contact holes; and a first relay lead formed by the same film as the conductive interlayer: overlapping the gate lead, and electrically connected between one of the first electrodes and another of the first electrodes through the corresponding contact holes.