Patent ID: 8144281

Claim:
An electro-optical device comprising: a data line that extends along a first direction; a pixel electrode of which a voltage is set according to a data signal transmitted by the data line; a transistor that is provided at a position corresponding to the pixel electrode, the transistor including a semiconductor layer; a light shielding film that includes a first portion, a second portion extending along a second direction intersecting the first direction, and a third portion connected to the first portion and the second portion, the first portion overlapping the data line, the second portion not overlapping the data line, the third portion having a length along the first direction larger than a length of the second portion along the first direction, the third portion overlapping a channel region of the semiconductor layer, the third portion having a base part that is connected to the second portion and an extended part that is connected to the base part and that extends from the base part along the first direction, and the base part having a length along the first direction equal to the length of the second portion along the first direction; a first conductive film that overlaps the light shielding film and that is located between the pixel electrode and the semiconductor layer; a second conductive film that overlaps the light shielding film, the second conductive film being formed between the first conductive film and the pixel electrode; and an interlayer insulating film between the first conductive film and the second conductive film, the first conductive film and the second conductive film being electrically connected through a contact hole formed in the interlayer insulating film, the contact hole overlapping at least a part of the extended part of the third portion as viewed in plan.