Illuminator and display apparatus

A display apparatus comprising:

• an illuminator;
• and
• a light intensity modulator that performs intensity modulation on illumination light from the illuminator to generate an image,
• the illuminator including
• a light source section that emits light including a first polarization component and a second polarization component, the first polarization component and the second polarization component being different from each other in polarization direction, and
• an optical phase modulator that generates first illumination light and second illumination light on a basis of the light emitted from the light source section and emits the first illumination light and the second illumination light, the first illumination light being used in a light intensity modulator to generate an image in a first luminance region, the second illumination light being used in the light intensity modulator to generate an image in a second luminance region, the second luminance region having a luminance higher than that of the first luminance region, wherein
• the optical phase modulator emits, as the first illumination light, light of the first polarization component of the light emitted from the light source section without performing phase modulation, and
• the optical phase modulator performs phase modulation on light of the second polarization component of the light emitted from the light source section on a basis of the image in the second luminance region, and emits the phase-modulated light as the second illumination light.