Abstract: An image display device includes a display panel displaying an image, and a diffractive element formed to operate in a 2D mode or a 3D mode so that the image of the display panel is perceived as a 2D image or a 3D image after passing through the diffractive element. In the image display device, the diffractive element includes a first substrate and a second substrate facing each other, a first electrode layer formed on the first substrate that includes a plurality of zones, a second electrode layer formed on the second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate. Further, when the diffractive element operates in the 3D mode, a common voltage is applied to the second electrode layer, and polarity of voltages applied to the first electrode layer with respect to the common voltage is inverted every zone.

Abstract: To display at least one three-dimensional (3D) image in a two-dimensional (2D) image display area, a method and apparatus is provided for distinguishing a 3D image display area, in which the at least one 3D image is displayed, from the 2D image display area, and displaying a 2D image and a 3D image in the 2D image display area and the 3D image display area, respectively, thereby improving display resolution.

Abstract: A display device includes; a display panel, a lens substrate facing the display panel, an air layer disposed between the display panel and the lens substrate, and a light refraction portion disposed on a surface of the lens substrate facing the display panel, wherein an average refractive index of the light refraction portion taken along a plane substantially parallel to the display panel increases in a direction substantially parallel to a path of light from the display panel to the lens substrate.

Abstract: A new 2D/3D switchable display apparatus matches a polarization direction of light output from a 2D image display panel with a rubbing direction of a lower alignment layer of a liquid crystal lens, and tilts a rubbing direction of an upper alignment layer of the liquid crystal lens and a direction of a polarization axis of a polarizer at a predetermined angle, thereby reducing a loss of light passing through the liquid crystal lens, making it possible to improve luminance of images, improve the quality of 3D images in the horizontal direction, prevent or reduce color separation and moire phenomena, and reduce the manufacturing cost.

Abstract: A liquid crystal lens device includes a first substrate including a display area, a first non-display area, and a second non-display area with the display area interposed between the first and second non-display areas. First bus lines are disposed over the first s non-display area. Second bus lines are disposed over the second non-display area and are insulated from the first bus lines. First electrode groups are disposed over the display area and the first non-display area and are connected to the first bus lines. Second electrode groups are disposed over the display area and the second non-display area and are connected to the second bus lines.

Abstract: A three-dimensional display device comprises a flat display panel and an image-converting sheet disposed on or above the display panel. The display panel comprises a matrix of unit display cells arranged as rows and columns and where the cells are spaced apart to have respective row and column direction pitches. The image-converting sheet comprises a plurality of inclined lenticular lenses where the inclination is set according to the row and column direction pitches so as to reduce perception of Moiré patterns when stereo-scopic images are projected through the image-converting sheet to an observer viewing the display panel as an upright panel having respectively different left and right stereo-scopic image projections.

Abstract: A lens module includes a lens panel and a lens driving part. The lens panel includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes first electrodes and second electrodes alternately disposed thereon that partially overlap each other and are electrically insulated from each other. The second substrate is opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate. The lens driving part provides a substantially equal voltage to both ends of each of the first and second electrodes.

Abstract: A liquid crystal lens unit is provided for use in an autostereoscopic 3D image display. Light passing through the liquid crystal lens unit is refracted by a liquid crystal layer arranged by an electric field. The voltage levels applied to the to the liquid crystal layer are periodically changed thereby periodically oscillating the position of the focus profile of the liquid crystal lens unit. As a result, moiré patterns are removed and display quality is improved.

Abstract: The present invention relates to an image display device using a diffractive lens. An image display device according to an exemplary embodiment of the present invention includes a display panel displaying an image, and a diffractive lens for the image of the display panel to be recognized as a two-dimensional (2D) image or a three-dimensional (3D) image, wherein the diffractive lens modifies a path of light by using an optical principle of a Fresnel zone plate.

Abstract: A two-dimensional/three-dimensional switchable display apparatus includes: a display panel; a first substrate disposed on the display panel; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a second substrate disposed on the first substrate; a second electrode layer disposed on the second substrate and including a plurality of second electrodes; and a liquid crystal layer disposed between the first and second substrates. A plurality of lens units are formed in association with a first position of the liquid crystal layer when a lens forming voltage profile is applied to the first electrodes and a common voltage is applied to the second electrodes. When the common voltage is applied to the first electrodes and the lens forming voltage is applied to the second electrodes, the plurality of lens units are formed in association with a second position spaced apart from the first position.

Abstract: A liquid crystal lens panel includes a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate includes a first base substrate and a plurality of first electrodes disposed on the first base substrate. The second substrate includes a second base substrate disposed to face the first base substrate, the second substrate further including a plurality of second electrodes disposed on the second base substrate. Each of the first base substrate and the second base substrate are rectilinearly shaped to comprise corresponding first sides and second sides, the plurality of first electrodes and the plurality of second electrodes are inclined with respect to the corresponding first sides or second sides, and the plurality of first electrodes comprise a first inclination angle different from a second inclination angle associated with the plurality of second electrodes.

Abstract: A liquid crystal lens panel includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first base substrate, a lens common electrode disposed on the first base substrate, and a first alignment layer disposed on the lens common electrode, the first alignment layer including a first alignment direction. The second substrate includes a second base substrate opposite to the first base substrate, a plurality of lens electrodes that extend in a lens axis and is parallel with each other, and a second alignment layer disposed on the plurality of lens electrodes, the second alignment layer including a second alignment direction substantially perpendicular to the first alignment direction. The liquid crystal layer is disposed between the first and second alignment layers.

Abstract: A display device according to an exemplary embodiment of the present disclosure includes: a liquid crystal lens panel positioned on a display panel; and a reflective polarizer positioned between the display panel and the liquid crystal lens panel, wherein the liquid crystal lens panel includes a lower substrate and an upper substrate facing each other, a lower lens electrode formed on the lower substrate, where the lower lens electrode includes a plurality of separate lower lens electrodes formed into lower lens electrode groups, where a width of each separate lower lens electrode becomes wider closer to a center of the lower lens electrode group; an upper lens electrode formed on the upper substrate, and a liquid crystal layer interposed between the lower substrate and the upper substrate. The liquid crystal lens panel is configured to be operated in a 2D mode, a 3D mode, or a mirror mode.

Abstract: A display apparatus includes a display panel, a lens plate and a lens driver. The display panel includes a plurality of unit pixels. The display panel is driven by dividing a single frame into N sub frames. N is a natural number. The lens plate is on the display panel. The lens plate includes a plurality of lenses which convert a two dimensional (“2D”) image displayed on the display panel into a three dimensional (“3D”) image. The lens driver disposes the lenses at a first position during a first sub frame. The lens driver moves the lenses to a second position from the first position and disposes the lenses at the second position during a second sub frame. The second position is shifted by 1/N of a width of the unit pixel from the first position.

Abstract: The present invention relates to an image display device using a diffractive lens. An image display device according to an exemplary embodiment of the present invention includes a display panel displaying an image, and a diffractive lens for the image of the display panel to be recognized as a two-dimensional (2D) image or a three-dimensional (3D) image, wherein the diffractive lens modifies a path of light by using an optical principle of a Fresnel zone plate.

Abstract: A display device is provided. The display device includes: a display panel; and a polarization conversion panel disposed on the display panel, wherein the polarization conversion panel includes: a reflective polarizer disposed on the display panel, an absorptive polarizer facing and spaced apart from the reflective polarizer, a lower electrode disposed on the reflective polarizer, an upper electrode disposed on the absorptive polarizer, and a liquid crystal layer disposed between the upper and lower electrodes; and wherein the polarization conversion panel is configured to emit light having a fixed wavelength range depending on a voltage difference generated between the upper and lower electrodes.

Abstract: A two-dimensional/three-dimensional switchable display apparatus includes: a display panel; a first substrate disposed on the display panel; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a second substrate disposed on the first substrate; a second electrode layer disposed on the second substrate and including a plurality of second electrodes; and a liquid crystal layer disposed between the first and second substrates. A plurality of lens units are formed in association with a first position of the liquid crystal layer when a lens forming voltage profile is applied to the first electrodes and a common voltage is applied to the second electrodes. When the common voltage is applied to the first electrodes and the lens forming voltage is applied to the second electrodes, the plurality of lens units are formed in association with a second position spaced apart from the first position.

Abstract: A display device includes a display panel for displaying an image. The display device further includes a lens configured to refract at least a portion of a collimated light having a center ray, a first outermost ray, a second outermost ray, a first plurality of rays between the first outermost ray and the center ray, and a second plurality of rays between the second outermost ray and the center ray. The lens may concentrate the first plurality of rays such that a first position on the display panel has a first light intensity. The lens may concentrate the second plurality of rays such that a second position on the display panel has a second light intensity. Each of the first light intensity and the second light intensity is substantially greater than a center light intensity on the display panel corresponding to at least the center ray.

Abstract: In a stereoscopic image conversion panel and a stereoscopic image display apparatus, the stereoscopic display panel includes a first lens substrate, a second lens substrate, a stereoscopic image lens part and a lens liquid crystal layer. The stereoscopic image lens part is disposed between the first and second substrates, and includes a main lens and sub-lenses with a concave shape. At least one sub-lens is disposed at opposite edge portions of the main lens. The lens liquid crystal layer is received by the main lens and the sub-lenses, is disposed between the first and second lens substrates, and includes liquid crystal molecules having an anisotropic refractive index. The lens liquid crystal layer refracts a polarized light at an interface between the lens liquid crystal layer and the stereoscopic lens part, to convert a flat image into a stereoscopic image. Therefore, the thickness of the stereoscopic image panel can be reduced.

Abstract: A display apparatus includes a display panel and a liquid crystal lens. The display panel includes a first pixel displaying an N-th portion of a left image corresponding to an N-th position in the left image and a second pixel displaying an N-th portion of a right image corresponding to the N-th position in the right image. The second pixel is spaced apart from the first pixel with additional pixels disposed between the second and first pixels. The liquid crystal lens includes a unit lens directing the N-th left image to a left eye of an observer and the N-th right image to a right eye of the observer where N is a positive integer.