Abstract: A method of manufacturing a color-routing element, may include: generating an initial pattern; performing blurring on the initial pattern to generate a reference pattern; performing edge detection on the reference pattern to generate at least one comparison pattern reflecting a process error; performing a simulation to obtain at least one color-routing figure of merit based on the reference pattern and the at least one comparison pattern; updating the initial pattern based on a calculation result of the at least one color-routing figure of merit; generating the updated initial pattern as a target pattern of the color-routing element; and manufacturing the color-routing element based on the target pattern.

Abstract: A double sided meta lens includes a substrate having a first surface and a second surface facing each other, a first meta lens that includes a plurality of first nanostructures arranged on the first surface of the substrate and exhibits a first phase profile, and a second meta lens that includes a plurality of second nanostructures arranged on the second surface of the substrate and exhibits a second phase profile. The first phase profile may be configured such that a central region of the first meta lens operates as a convex lens and a peripheral region of the first meta lens operates as a concave lens, and the second phase profile may correspond to a focusing lens and has a section in which an absolute value of a phase slope increases with distance from a center of the second meta lens.

Abstract: A holographic display using a metasurface and a metasurface optimization method are provided, wherein the holographic display includes a spatial light modulator, a half-wave plate configured to rotate a linear polarization direction of light incident from the spatial light modulator at a certain angle and output light including a horizontal linear polarization component and a vertical linear polarization component having a same magnitude and orthogonal to each other, and a metasurface including nanostructures configured to perform different phase modulations on the horizontal linear polarization component and the vertical linear polarization component, and the metasurface is optimized by using a gradient descent method.

Abstract: The present invention provides a reflection-type three-dimensional display system. The present invention comprises an image providing device that provides elemental images; an image displaying device that displays the elemental images; a projective lens system that is located along the same axis as the image providing device; and a concave mirror array that is located along the same axis as the projective lens system. The projective lens system projects the image that is displayed by the image displaying device to the concave mirror array, and the concave mirror array reflects and integrates the projected image and therefore displays the three-dimensional image.

Abstract: The present invention provides a reflection-type three-dimensional display system. The present invention comprises an image providing device that provides elemental images; an image displaying device that displays the elemental images; a projective lens system that is located along the same axis as the image providing device; and a concave mirror array that is located along the same axis as the projective lens system. The projective lens system projects the image that is displayed by the image displaying device to the concave mirror array, and the concave mirror array reflects and integrates the projected image and therefore displays the three-dimensional image.