Abstract: A three-dimensional (3D) display apparatus and methods of displaying 3D images are provided. A 3D display apparatus includes a light source, a display unit, an active optical device for changing a travel path of light, and a plurality of projection optical systems.

Abstract: A multi-view point 3D display apparatus using an active optical device is provided. The active optical device may change a path of light without a substantial drop of image resolution.

Abstract: A surface light source device is provided. The surface light source device includes a light source, a beam splitter configured to split a light irradiated from the light source into a plurality of light beams each having a different path, a diffusion unit configured to diffuse the plurality of light beams split by the beam splitter into a surface light, and a collimating unit configured to arrange the plurality of light beams diffused from the diffusion unit in one direction.

Abstract: An apparatus includes a recording light source configured to emit recording beams, an electrically addressable spatial light modulator (EASLM) configured to time sequentially modulate the recording beams emitted from the recording light source according to hologram information corresponding to a 3-dimensional image spatially divided into a plurality of portions, an optically addressable spatial light modulator (OASLM) configured to include a plurality of regions corresponding to the plurality of the divided portions of the 3-dimensional image and images on a region corresponding to the portions using the modulated recording beams to form a hologram, a scanning optical unit configured to reproduce the hologram formed by the recording beams serially modulated by the EASLM on a reduced scale and transmit the hologram to the regions of the OASLM corresponding to the portions, and a reproducing light source configured to produce a surface light and emit the surface light to the OASLM.

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: An apparatus for displaying a 3-dimensional (3D) image, which is capable of providing a super multi-view, is provided. The apparatus includes: at least one image projector for projecting light including an image; an active optical element for adjusting a path of at least one light within a range of a predetermined angle; and a relay optical system for transmitting the at least one light to a pupil of a viewer. The apparatus provides a plurality of images in different views to the pupil using a time division method, by using the active optical element for adjusting the path of the at least one light.

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: An organic electroluminescent device (OELD) and a method of manufacturing the OELD are provided. The OELD includes a substrate, an anode electrode stacked on the substrate, an organic light emitting layer that is stacked on the anode electrode and has a plurality of protrusions on the organic light emitting layer, and a cathode electrode that covers the protrusions formed on the organic light emitting layer and is formed of a metal.

Abstract: A backlight unit of a three-dimensional (3D) display has a plurality of cells and a 3D image is formed by adjusting directions of light emitted from the cells. The backlight unit includes an emission unit that adjusts an emission direction of light from a cell with respect to other cells. The backlight unit divides view areas to provide left-eye and right-eye images, thereby generating a 3D image.

Abstract: Provided are a method of preparing a nanowire grid polarizer, and a nanowire grid polarizer prepared using the same. The method includes: mixing a surfactant and a silica precursor to prepare a mesoporous film composition; coating the mesoporous film composition on a substrate; aging the coated product to form a silica template composite; removing the surfactant inside the silica template composite to prepare a mesoporous material having channels; and filling the channels of the mesoporous material with metal. The method is suitable for the formation of a nanowire having a stable structure, mass production, and large-area production.

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: 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: Provided are methods of manufacturing a surface light source device, the methods include forming a first structure that includes a first substrate and a plurality of glass beads each partially embedded in the first substrate. A second structure is formed that includes a second substrate and an adhesive material layer formed on the second substrate. The first structure and the second structure are adhered to each other in such a way that the glass beads are each partially embedded into the adhesive material layer.

Abstract: A high efficiency gas concentrating apparatus includes an air compressor for supplying high pressure air, first and second adsorption towers that are disposed above the air compressor and communicating with the air compressor to adsorb nitrogen and concentrate oxygen as the high pressure air is alternately supplied thereto, first and second concentrating passages that are disposed above the respective first and second adsorption towers to discharge the concentrated oxygen, and a cleaning tank that is disposed between the first and second concentrating passages to receive a portion of the concentrated oxygen from one of the first and second adsorption towers, temporarily store the received concentrated oxygen therein, and alternately remove adsorbed nitrogen by supplying the temporarily concentrated oxygen to the other of the first and second adsorption towers.

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: Light guide plates having a filled-in type light emitting structure, display apparatuses using a light guide plate and methods of fabricating the same are provided, the light guide plates include a transparent light guide member, and a reflection member filled in the light guide member. The reflection member reflects light incident on the light guide member. The reflection member has a plurality of light exit holes through which light, reflected inside the light guide member, exits.

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: The present invention relates to an apparatus and process for oxygen concentration that makes possible the production of highly purified concentrated oxygen by modifying the structure of the adsorption bed and with various valves coupled thereto, and which can increase purity of the oxygen produced and reduce mechanical energy and consumption of electricity of the air compressor.

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: A light guide plate having a multi-periodic micro pattern, which can minimize chromatic dispersion, and an illumination apparatus for a display device employing the light guide plate are provided. The light guide plate includes a top surface and a micro pattern formed on the top surface and allowing light, which is incident from a first side surface of the light guide plate, to be emitted from the top surface. The micro pattern is a combination of at least two periodic patterns having different periods to reduce chromatic dispersion of light emitted from the top surface.