An electro-optical device includes a pixel electrode, a light shielding member disposed along an edge of the pixel electrode in a planar view viewed in a thickness direction that is a direction perpendicular to the pixel electrode, a first insulator that is provided in a region overlapped with at least the light shielding member in the planar view, and having light transmission, and a second insulator that is provided to be in contact with the first insulator on an opening region that is an inside surrounded by the light shielding member in the planar view, and having the light transmission and a refractive index higher than that of the first insulator, in which the second insulator configures a waveguide which reflects incident light incident on the opening region at an interface between the second insulator and the first insulator, and propagates the incident light inside the second insulator.