Abstract: A display device includes a display unit including a first surface on which an image is displayed, and a second surface opposite to the first surface, a geometric phase lens, a polarized light change element between the first surface of the display unit and the geometric phase lens, and a lens portion between the polarized light change element and the geometric phase lens, and including a half mirror, a lens, and a reflector.

Abstract: A holographic printing system according to an embodiment of the present disclosure is disclosed. The system may include: a light source; a geometrical phase holographic element having a phase retardation of ?/4; and an optical member for copying and printing a wavefront through self-interference of light transmitted through the geometrical phase holographic element. According to an embodiment, the light source, the geometrical phase holographic element, and the optical member may be disposed in a line. According to an embodiment, the geometrical phase holographic element and the optical member may be disposed with a predetermined distance therebetween, and the predetermined distance may be a distance that enables self-interference of light transmitted through the geometrical phase holographic element.

Abstract: The liquid crystal display device may include a first electrode; a second electrode facing the first electrode and forming a vertical electrical field together with the first electrode; a blue phase liquid crystal layer provided between the first electrode and the second electrode; and a first prism sheet provided to face the second electrode with the first electrode between the second electrode and the first prism sheet. The first prism sheet changes a path of incident light so that the incident light from the outside obliquely enters the blue phase liquid crystal layer with respect to the vertical electrical field.

Abstract: The liquid crystal display device may include a first electrode; a second electrode facing the first electrode and forming a vertical electrical field together with the first electrode; a blue phase liquid crystal layer provided between the first electrode and the second electrode; and a first prism sheet provided to face the second electrode with the first electrode between the second electrode and the first prism sheet. The first prism sheet changes a path of incident light so that the incident light from the outside obliquely enters the blue phase liquid crystal layer with respect to the vertical electrical field.

Abstract: A liquid crystal display (LCD) device having an alignment film of which pretilt angle and azimuthal angle can be adjusted without ultraviolet irradiation and a method for fabricating the LCD device are provided. A liquid crystal display having a thin film transistor substrate and a color filter substrate facing each other and a liquid crystal layer sealed between the substrates includes a first alignment film having a pattern which defines a first and second alignment domains on the thin film transistor substrate and a second alignment film formed on the color filter substrate.

Abstract: A liquid crystal display (LCD) device having an alignment film of which pretilt angle and azimuthal angle can be adjusted without ultraviolet irradiation and a method for fabricating the LCD device are provided. A liquid crystal display having a thin film transistor substrate and a color filter substrate facing each other and a liquid crystal layer sealed between the substrates includes a first alignment film having a pattern which defines a first and second alignment domains on the thin film transistor substrate and a second alignment film formed on the color filter substrate.