Abstract: A two-dimensional (2D)/three-dimensional (3D) switchable image display device is provided. The 2D/3D switchable image display device forms gradation of an image in a light modulation panel, provides color to light beams that penetrate a plurality of electro-wetting prisms arranged in correspondence to the plurality of pixels of the image, and adjusts the direction of the light beam such that the light beams of the pixels of the image are directed towards at least two different view zones in a 3D mode and such that the light beams maintain their paths in a 2D mode.

Abstract: A 3D image display apparatus and a 3D image display method are provided. The 3D image display apparatus generates a 2D image region and a 3D image region, forms shutter patterns for the 3D and 2D image regions, and adjusts a light emitting direction according to the shutter patterns. Accordingly, the 2D and 3D images may be selectively displayed on one screen.

Abstract: A multi-touch sensing display apparatus is provided. The multi-touch sensing display apparatus may include a back light unit, a display panel, a sensor unit on a display surface of the display panel, and a touch light source unit providing light to be diffused by a touch of a user so that the sensor unit senses the touch of the user. The touch light source unit may include a touch light source and a transparent light guide plate. The transparent light guide plate may include a light guiding unit and a plurality of light emitting units integrally formed with each other as a single body, wherein the light guiding unit guides light from the touch light source to an inside thereof, and the plurality of light emitting units protrudes from the light guiding unit and emits light from the light guiding unit.

Abstract: A three-dimensional (3D) image display apparatus that includes a surface-light source device for emitting light in a direction which may be sequentially adjusted, is provided. The 3D image display apparatus includes a display panel for generating images by modulating the light emitted from the surface-light source device according to image information. The 3D image display apparatus also includes a controller for controlling the directivity adjustment of the light from the surface-light source device in a time-sequential manner and the image formation for each visual field of the display panel to be synchronized with each other.

Abstract: A two-dimensional (2D)/three-dimensional (3D) switchable image display device is provided. The 2D/3D switchable image display device forms gradation of an image in a light modulation panel, provides color to light beams that penetrate a plurality of electro-wetting prisms arranged in correspondence to the plurality of pixels of the image, and adjusts the direction of the light beam such that the light beams of the pixels of the image are directed towards at least two different view zones in a 3D mode and such that the light beams maintain their paths in a 2D mode.

Abstract: An active lens includes: a first nanoelectrode unit; a second nanoelectrode unit formed to face the first nanoelectrode unit; and a liquid crystal layer disposed between the first nanoelectrode unit and the second nanoelectrode unit. Liquid crystal molecules of the liquid crystal layer are aligned according to an electric field formed by a voltage applied to the first and second nanoelectrode units to form a refractive power.

Abstract: A two-dimensional (2D)/three-dimensional (3D) switchable image display device is provided. The 2D/3D switchable image display device forms gradation of an image in a light modulation panel, provides color to light beams that penetrate a plurality of electro-wetting prisms arranged in correspondence to the plurality of pixels of the image, and adjusts the direction of the light beam such that the light beams of the pixels of the image are directed towards at least two different view zones in a 3D mode and such that the light beams maintain their paths in a 2D mode.

Abstract: Directional light guide plates, directional surface light sources, and three-dimensional (3D) image display apparatuses employing the directional surface light sources are provided. Each of the directional light guide plates includes a plurality of viewing zone separation units having a refractive index different from that of a light guide unit, for separating light into left and right viewing zones.

Abstract: A backlight unit and a display device including the backlight unit are provided. The backlight unit includes at least one light source unit and a light guide plate. The light source unit provides collimated light and controls light such that it is emitted in a plurality of light exit directions.

Abstract: Provided is a transflective display apparatus including a light source, a light guide plate guiding light from the light source or incident external light toward the inside, emitting the light or the incident external light to a light emitting surface of the light guide plate, and including a diffusion reflective member formed on the light emitting surface, a color reflective member disposed in a lower portion of the light guide plate and including a plurality of arrayed color regions for reflecting light of a color, a light modulation member disposed in an upper portion of the light guide plate, modulating light, and forming an image, including a plurality of pixel regions corresponding to the plurality of color regions, respectively, each of the plurality of pixel regions including an effective region and an ineffective region, wherein the diffusion reflective member is disposed to face the ineffective region.

Abstract: Provided is a transflective display apparatus including a color reflective plate disposed at a light emitting surface of a light guide plate, and a display panel disposed at another surface of the light emitting surface of the light guide plate so that light emitted from a light source is reflected by a color reflective plate through the light guide plate and travels toward the display panel.

Abstract: A display apparatus according to example embodiments may include a light source; an all-in-one type light guide plate; a reflective plate; and a display panel. The all-in-one type light guide plate may include a light guide member and light emitting members, wherein the light guide member reflects light incident from the light source toward the light emitting members, and the light emitting members protrude from one side of the light guide member and emit light incident from the light guide member. The light guide member and the light emitting members may be integrally formed or individually combined to form an all-in-one type light guide plate. The display apparatus may form an image using light from a backlight unit and external light.

Abstract: Example embodiments relate to a backlight unit and a display apparatus employing the same. The backlight unit may include a light source; a polarization conversion unit configured to convert polarization of light incident from the light source; and a light guide plate configured to emit light incident through the polarization conversion unit. The light guide plate may include a plurality of light emitting portions configured to emit light through specular reflection. The light polarized by the polarization conversion unit may maintain its polarization state when it is subsequently emitted from the light guide plate.

Abstract: Directional light guide plates, directional surface light sources, and three-dimensional (3D) image display apparatuses employing the directional surface light sources are provided. Each of the directional light guide plates includes a plurality of viewing zone separation units having a refractive index different from that of a light guide unit, for separating light into left and right viewing zones.

Abstract: A 3D image display apparatus and a 3D image display method are provided. The 3D image display apparatus generates a 2D image region and a 3D image region, forms shutter patterns for the 3D and 2D image regions, and adjusts a light emitting direction according to the shutter patterns. Accordingly, the 2D and 3D images may be selectively displayed on one screen.

Abstract: A backlight unit and a display device including the backlight unit are provided. The backlight unit includes at least one light source unit and a light guide plate. The light source unit provides collimated light and controls light such that it is emitted in a plurality of light exit directions.

Abstract: A three-dimensional (3D) image display apparatus that includes a surface-light source device for emitting light in a direction which may be sequentially adjusted, is provided. The 3D image display apparatus includes a display panel for generating images by modulating the light emitted from the surface-light source device according to image information. The 3D image display apparatus also includes a controller for controlling the directivity adjustment of the light from the surface-light source device in a time-sequential manner and the image formation for each visual field of the display panel to be synchronized with each other.

Abstract: A two-dimensional (2D)/three-dimensional (3D) switchable image display device is provided. The 2D/3D switchable image display device forms gradation of an image in a light modulation panel, provides color to light beams that penetrate a plurality of electro-wetting prisms arranged in correspondence to the plurality of pixels of the image, and adjusts the direction of the light beam such that the light beams of the pixels of the image are directed towards at least two different view zones in a 3D mode and such that the light beams maintain their paths in a 2D mode.

Abstract: Three-dimensional (3D) glasses and a 3D display apparatus are provided. The 3D display apparatus includes a backlight unit comprising a first light source unit for irradiating a first spectrum of light and a second light source unit for irradiating a second spectrum of light. The apparatus includes a polarization switch for selectively converting the polarization of incident light, and for reducing eye fatigue by providing a plurality of view images to each eye using a pair of glasses that each have a color filter and a birefringent device.

Abstract: A wearable display adopting a diffractive optical system includes a light source unit to emit light of a plurality of colors having wavelength bands which do not overlap each other; a light guide plate including a light guide portion to guide light incident from the light source unit by reflection, and a plurality of light output portions protruding from a surface of the light guide portion to output the light incident from the light source via a specular reflection as a surface light source. The light incident on a panel type optical modulation device from the light guide plate is modulated according to input image signals. The light emitted from the panel type optical modulation device is diffracted by a first diffractive device to be coupled to the waveguide and propagated by the waveguide. The light transferred through the waveguide is focused by an imaging device to form an enlarged image.