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: 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: 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 diffuser sheet which compensates for chromatic dispersion generated in a hologram light guide plate, and an illumination apparatus employing the diffuser sheet are provided. The diffuser sheet includes a plate type light-transmissive substrate and a light diffusion layer disposed on a light emission surface of the light-emission substrate. A light-incident surface of the light-transmissive substrate has declined surfaces and flat surfaces which are alternatively and repeatedly formed thereon. The declined surfaces are declined at a predetermined angle.

Abstract: Provided are a wire grid polarizer having a double layer structure, with two metallic wire layers, and a method of fabricating the same. The wire grid polarizer having a double layer structure includes: a light transmitting substrate; a plurality of first conductive metallic wires arranged on the light transmitting substrate parallel to one another at a predetermined period; a light transmitting interlayer arranged on the first conductive metallic wires; and a plurality of second conductive metallic wires arranged on the light transmitting substrate parallel to one another at a predetermined period, wherein the first conductive metallic wires and the second conductive metallic wires are arranged alternately.

Abstract: An oxygen generator including: a humidifier tank moves up and down according to a horizontal movement of an adjustment knob so that the humidifier tank can be readily detachable, and thus a user can securely and conveniently use the oxygen generator without any water leakage from the humidifier tank during an operation of the oxygen generator. Also, it is possible to reduce noise due to driving of a compressor, noise due to the nitrogen exhaustion, and noise due to driving of a fan portion when the oxygen generator operates, to display purity information about the discharged oxygen, sensed by an oxygen sensor, as a digitalized numerical value on a display portion so that a user may readily recognize a current oxygen purity, and to drive the compressor at a low power consumption based on a discharge flow rate of oxygen and thereby reduce the power consumption.

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 reflective magnetic display includes a magnetic material layer region formed between front and rear substrates, wherein the magnetic material layer region has magnetic particles that reflect or absorb incident light when magnetic moments are randomly oriented and reflect or transmit the incident light in, accordance with polarization of the incident light, when the magnetic moments are aligned in a direction and an electrode that is designed to apply a magnetic field inducing a magnetic moment alignment on the magnetic material layer region in accordance with electrical operation.

Abstract: An oxygen generator including: a humidifier tank moves up and down according to a horizontal movement of an adjustment knob so that the humidifier tank can be readily detachable, and thus a user can securely and conveniently use the oxygen generator without any water leakage from the humidifier tank during an operation of the oxygen generator. Also, it is possible to reduce noise according to driving of a compressor, noise according to the nitrogen exhaustion, and noise according to driving of a fan portion when the oxygen generator operates, to display purity information about the discharged oxygen, sensed by an oxygen sensor, as a digitalized numerical value on a display portion so that a user may readily recognize a current oxygen purity, and to drive the compressor at a low power consumption based on a discharge flow rate of oxygen and thereby reduce the power consumption.

Abstract: A method and apparatus for generating an elemental image by an integral image technique are provided. The method includes normalizing coordinates of dots in a frustum formed in perspective projection by mapping the dots in the frustum into a cube; reversing a grade of depth of the cube viewed from a particular viewpoint; and generating a two-dimensional (2D) elemental image necessary for three-dimensional (3D) display from dots in the cube whose grade of depth is reversed.

Abstract: A backlight unit for a flat panel display and a flat panel display apparatus having the same. The backlight unit for a flat panel display includes a light source emitting light, a light guide panel having an incident surface facing the light source and totally reflecting light incident through the incident surface toward the flat panel display, a holographic pattern that is formed at at least one of an exit surface of the light guide panel or the opposing surface with a predetermined grating period and diffracts light incident into the light guide panel and a dot pattern containing a plurality of particles dispersed on the holographic pattern at intervals shorter than the grating period and scattering incident light.

Abstract: Provided are a wire grid polarizer having a double layer structure, with two metallic wire layers, and a method of fabricating the same. The wire grid polarizer having a double layer structure includes: a light transmitting substrate; a plurality of first conductive metallic wires arranged on the light transmitting substrate parallel to one another at a predetermined period; a light transmitting interlayer arranged on the first conductive metallic wires; and a plurality of second conductive metallic wires arranged on the light transmitting substrate parallel to one another at a predetermined period, wherein the first conductive metallic wires and the second conductive metallic wires are arranged alternately.

Abstract: Provided is a method of fabricating a wire grid polarizer, including: forming a photoresist having a striped pattern on a substrate, wherein a plurality of grooves are periodically formed in the photoresist; and forming a wire grid by filling a solution including dispersed nano metal particles in the grooves and then by removing a solvent of the solution to form the wire grids.

Abstract: A backlight unit for a flat panel display and a flat panel display apparatus having the same. The backlight unit for a flat panel display displaying a predetermined image includes: a light source which emits light; a light guide panel having an incident surface facing the light source and which totally reflects light incident through the incident surface toward the flat panel display; and a holographic pattern that includes a plurality of diffraction gratings that are continuously repeated on at least one of an exit surface of the light guide panel and the opposing surface and diffracts light incident into the light guide panel. A depth of the diffraction grating progressively increases away from the incident surface along a length direction of the light guide panel.

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: An edge light type backlight unit having an improved light-reception portion. The backlight unit includes one or more light sources that emit light, a light guide panel that guides the propagation of light incident on one side edge thereof, one or more light-reception portions having a first entrance face slanted opposite the side edge of the light guide panel on which the light is incident at a predetermined angle, and one or more reflecting elements that are disposed between each of the light-reception portions and each of the light sources and guides the light emitted by the light source so that it is incident on the first entrance face.

Abstract: The present invention relates to an apparatus and process of oxygen concentration system to make it possible to produce a highly purified concentrated oxygen,with modifying the structure of the adsorption bed and it achieves evenness of the first and second upper portions and controls to make simultaneous evenness of the first and second upper/lower portions together and thus increases purity of the oxygen produced and reduces mechanical energy and consumption of electricity of the air compressor, then it is about the oxygen concentration apparatus to make it possible to promote pure oxygen enrichment and its recovery rate and the oxygen concentration method to use it.

Abstract: A diffuser sheet which compensates for chromatic dispersion generated in a hologram light guide plate, and an illumination apparatus employing the diffuser sheet are provided. The diffuser sheet includes a plate type light-transmissive substrate and a light diffusion layer disposed on a light emission surface of the light-emission substrate. A light-incident surface of the light-transmissive substrate has declined surfaces and flat surfaces which are alternatively and repeatedly formed thereon. The declined surfaces are declined at a predetermined angle.

Abstract: A backlight unit for a flat panel display and a flat panel display apparatus having the same. The backlight unit for a flat panel display displaying a predetermined image includes: a light source which emits light; a light guide panel having an incident surface facing the light source and which totally reflects light incident through the incident surface toward the flat panel display; and a holographic pattern that includes a plurality of diffraction gratings that are continuously repeated on at least one of an exit surface of the light guide panel and the opposing surface and diffracts light incident into the light guide panel. A depth of the diffraction grating progressively increases away from the incident surface along a length direction of the light guide panel.

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.