| 摘要 |
A method of manufacturing an electro-optical device, which, on a substrate, has a plurality of data lines, a plurality of scanning lines, a plurality of driving elements formed to correspond to intersections of the plurality of data lines and the plurality of scanning lines for pixels, and a plurality of pixel electrodes provided to correspond to the driving elements, includes forming an etching stopping layer, forming a common line that is provided above the etching stopping layer to short-circuit the plurality of scanning lines and the plurality of scanning lines, forming a first interlayer insulating film that isolates the plurality of data lines and the plurality of pixel electrodes from the plurality of scanning lines and the plurality of driving elements, forming contact holes that electrically connect the plurality of data lines and the plurality of pixel electrodes to the plurality of driving elements, forming the plurality of data lines, and forming a cutting hole in the first interlayer insulating film by etching so as to cut the common line.
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