As an electro-optical device, a liquid crystal device includes micro lenses ML each of which is provided as a light-gathering element for the corresponding one of pixels, and further includes a light-shielding portion. Red (R), green (G), and blue (B) beams enter the micro lens ML at angles different from one another. The light-shielding portion partitions off a first opening portion corresponding to a sub pixel, a second opening portion corresponding to a sub pixel, and a third opening portion corresponding to a sub pixel from one another. When the width of the first opening portion in the predetermined direction (X direction) is defined as L1 and when the width of the second opening portion or the third opening portion in the predetermined direction is defined as L2, a relationship of L1