Electric optical device and electronic device

An electric optical device comprising:

• a substrate;
• a data line and a scan line intersecting each other on the substrate;
• a pixel electrode provided in a pixel corresponding to an intersection of the data line and the scan line;
• a transistor provided between the pixel electrode and the substrate, the transistor including:
• a semiconductor layer having a first source/drain region electrically connected to the data line, a second source/drain region electrically connected to the pixel electrode, and a channel region provided between the first source/drain region and the second source/drain region, and
• a gate electrode provided to be opposed to the channel region via a gate insulating film;
• a first light blocking film provided between the pixel electrode and the gate electrode via a first insulating film, the first light blocking film being formed to have a part overlapping with the gate electrode, and being electrically connected to the gate electrode via a first contact hole which is opened in the first insulating film;
• and
• a second light blocking film provided between the semiconductor layer and the substrate via a second insulating film, the second light blocking film being electrically connected to the first light blocking film via a second contact hole which is opened to penetrate the first insulating film, the gate insulating film, and the second insulating film.