To display high quality images by preventing quality of images from deteriorating due to reverse tilt domains and reducing or preventing light leakage from being generated on images, an electro-optical device includes data lines, scanning lines, TFTs, and pixel electrodes on a substrate. Cutout portions are formed in parts of the pixel electrodes. First light-shielding films extend along at least one of the data lines and the scanning lines. Quadrangular portions formed of the same film as the first light-shielding films are formed in the first light-shielding films to reduce or prevent the light leakage due to the cutout portions.