A meta projector (100, 210, 310) comprising: a light source array configured to emit light along an optical path, the light source array including: a first light-emitting array including a plurality of first light-emitting elements configured to emit first light of a first polarization state; a second light-emitting array including a plurality of second light-emitting elements configured to emit a second light having a second polarization state, the second polarization state different from the first polarization state; and an optical layer at least partially aligned with the optical path and configured to differently modulate the first light and the second light in relation to each other; characterized in that the optical layer is a meta-structure layer including a plurality of nanostructures having a sub-wavelength shape dimension that is smaller than the wavelength of light emitted from the light source array; in that the plurality of nanostructures are configured to form different transmission phase distributions according to the polarization of light emitted from the light source array, based on a particular shape distribution of the plurality of nanostructures; and in that the shape distribution of the plurality of nanostructures is such that the nanostructures form structured light using the first light emitted from the first light-emitting array and form uniform light using the second light emitted from the second light-emitting array. a light source array configured to emit light along an optical path, the light source array including: a first light-emitting array including a plurality of first light-emitting elements configured to emit first light of a first polarization state; a second light-emitting array including a plurality of second light-emitting elements configured to emit a second light having a second polarization state, the second polarization state different from the first polarization state; and an optical layer at least partially aligned with the optical path and configured to differently modulate the first light and the second light in relation to each other; a first light-emitting array including a plurality of first light-emitting elements configured to emit first light of a first polarization state; a second light-emitting array including a plurality of second light-emitting elements configured to emit a second light having a second polarization state, the second polarization state different from the first polarization state; and an optical layer at least partially aligned with the optical path and configured to differently modulate the first light and the second light in relation to each other; characterized in that the optical layer is a meta-structure layer including a plurality of nanostructures having a sub-wavelength shape dimension that is smaller than the wavelength of light emitted from the light source array; in that the plurality of nanostructures are configured to form different transmission phase distributions according to the polarization of light emitted from the light source array, based on a particular shape distribution of the plurality of nanostructures; and in that the shape distribution of the plurality of nanostructures is such that the nanostructures form structured light using the first light emitted from the first light-emitting array and form uniform light using the second light emitted from the second light-emitting array.