Abstract: The present invention relates to a light emitting diode with high electrostatic discharge and a fabrication method thereof, and more specifically to a light emitting diode comprising a first electrode layer provided over a upper surface of a first semiconductor layer and a upper surface of a second semiconductor layer; a transparent electrode layer formed on the upper surface of the second semiconductor layer, spaced from the first electrode layer; and a second electrode layer provided on a upper surface of the transparent electrode layer. With the present invention, there is provided a light emitting diode element with resistance against electrostatic discharge and with high reliability being strong against electrical impact, by selecting a structure arranging a form of an electrode differently from a conventional electrode.

Abstract: Provided are embodiments of an optical sheet and a backlight assembly having the optical sheet. The optical sheet can include a body, a plurality of protrusions, and a plurality of embossed portions. The body can form a substrate. One surface of the body can be provided in a planar shape, and the other surface of the body can include the plurality of protrusions, where the protrusions have a triangular shaped cross-section. Each of the protrusions can be configured with the plurality of embossed, which may be formed by a microlens pattern.

Abstract: An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof.

Abstract: A location updating method and apparatus for a mobile terminal in a radio network is provided for preventing a location updating request of a mobile terminal from being rejected by a network with an invalid cause of a rejection. The location updating method for a mobile terminal includes receiving a location updating reject message from a first network, the location updating reject message including a cause of a rejection indicating that the mobile terminal is not registered with the first network, checking a first network information of the first network, determining whether the first network information differs from a second network information of a second network, maintaining, when the first and second network information are different from each other, an operational state of the mobile terminal as a valid state, and requesting, when the home network is discovered, the home network for a location updating.

Abstract: A portable terminal having a long-stroke hinge is disclosed. The portable terminal includes a first main body, a second main body sliding on the first main body, a first member with elasticity having a first end fixed to the first main body and a second end that is horizontally moveable, and a second member having a first end rotatably coupled with the second end of the first member and a second end fixed to the second main body.

Abstract: Provided is an apparatus for fabricating an optical member. The apparatus includes a first roll around which a base film is wound, a second roll around which a base film on which a coating liquid is applied in a predetermined pattern is wound, two or more guide rolls disposed between the first and second rolls to convey the base film, an injection unit for injecting the coating liquid, a pattern molding unit engaged with one of the guide rolls to apply the injected coating liquid on the base film in the predetermined pattern, and a hardening unit for hardening the coating liquid applied on the base film.

Abstract: Provided is an apparatus for fabricating an optical member. The apparatus includes a first roll around which a base film is wound, a second roll around which a base film on which a coating liquid is applied in a predetermined pattern is wound, two or more guide rolls disposed between the first and second rolls to convey the base film, an injection unit for injecting the coating liquid, a pattern molding unit engaged with one of the guide rolls to apply the injected coating liquid on the base film in the predetermined pattern, and a hardening unit for hardening the coating liquid applied on the base film.

Abstract: An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof.

Abstract: An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof.

Abstract: Provided are embodiments of an optical sheet and backlight assemblies incorporating the optical sheet. The optical sheet can include a body and a plurality of protrusions. The protrusions are arranged on a surface of the body. A furrow pattern in which furrows are arranged is formed on the protrusion for scattering light.

Abstract: An apparatus for manufacturing a surface light source apparatus in which a light guide pattern portion is formed on a light guide panel includes a pattern design system to which data about a pattern to be formed on the light guide pattern is input. A control system is connected to the pattern design system and transmits a position signal matching a coordinate value of each pattern to be formed on the light guide panel. A header moving portion mechanically moves vertically and horizontally according to the position signal received from the control system. A laser system outputs a laser beam according to a pulse signal synchronized with a movement of the header moving portion. A lens portion allows a laser beam output from the laser system to pass the header moving portion and to be focused on a scanning surface of the light guide panel. A warp prevention unit prevents the light guide panel from warping due to a local heating by the laser beam.

Abstract: An apparatus for manufacturing a surface light source apparatus in which a light guide pattern portion is formed on a light guide panel includes a pattern design system to which data about a pattern to be formed on the light guide pattern is input. A control system is connected to the pattern design system and transmits a position signal matching a coordinate value of each pattern to be formed on the light guide panel. A header moving portion mechanically moves vertically and horizontally according to the position signal received from the control system. A laser system outputs a laser beam according to a pulse signal synchronized with a movement of the header moving portion. A lens portion allows a laser beam output from the laser system to pass the header moving portion and to be focused on a scanning surface of the light guide panel. A warp prevention unit prevents the light guide panel from warping due to a local heating by the laser beam.

Abstract: An electron gun for cathode ray tubes (CRTs) with a helical multi-lens electrode assembly which is formed by coupling auxiliary electrodes to both ends of a helical resistive coil. The auxiliary electrodes have claws to be embedded in bead glasses, so that the helical resistive coil is mechanically supported in the electron gun. As a voltage is applied to the helical resistive coil through the auxiliary electrodes, multiple electron lenses are created due to voltage drops in each pitch of the helical resistive coil.

Abstract: A laser video projector using an optical pumping valve is provided. The video projector according to the present invention forms an image using an optical pumping valve including a laser resonator for resonating light of a certain wavelength, an optical pumping source for performing pumping so that the laser resonator can generate a laser beam, and an optical valve for filtering the laser beam emitted from the laser resonator so that the filtered laser beam forms a picture instead of a cathode ray tube (CRT).

Abstract: An electron gun for a cathode ray tube includes a cathode assembly, a control electrode, and a screen electrode adjacent to the cathode assembly, combined, and spaced apart from each other by a gap maintainer, focusing electrodes sequentially arranged adjacent to the screen electrode, forming an auxiliary lens and a main lens, and bead glass in which portions of the cathode assembly and respective electrodes are embedded and supported.

Abstract: A cathode ray tube including a bulb having a screen on which a fluorescent film is formed, and a funnel portion having a neck portion on the side opposite to the screen, an electron gun mounted in the neck portion of the bulb, a deflection yoke mounted on the bulb, for deflecting an electron beam emitted from an electron gun, a velocity modulator installed around the neck portion, and an eddy current generation preventing means installed on an electrode of the electrode gun, which corresponds to the velocity modulator, for preventing generation of an eddy current by the velocity modulator. Here, the electron gun has a cathode forming a triode portion, a control electrode, a screen electrode, a plurality of focusing electrodes sequentially aligned from the screen electrode, and a final accelerating electrode which is installed adjacent to a focusing electrode the farthest away from the cathode or protects a predetermined width of the outer circumferential surface of the focusing electrode.

Abstract: A plane optical source device used in a rear illuminating optical source of a liquid crystal display device or for general illuminance is provided. The plane optical source device includes a container having a front plate, a rear plate and side walls, the front plate being made of a transparent substance, for defining an airtight space for generating arc; a fluorescent layer formed on the inner surface of the front plate; a first electrode formed on the inner surface of the rear plate of container in a predetermined pattern, the first electrode being opposite to the fluorescent layer; and a second electrode formed on the outer surface of the rear plate, corresponding to the first electrode.

Abstract: A flat glow discharge lamp includes a discharge tube having two opposing flat faces and a first and second plurality of long electrodes disposed on respective opposing flat faces, wherein one of the pluralities of long electrodes is composed of a transparent conductive material. The discharge lamp includes a fluorescent layer disposed on the inner surface of the discharge tube, and either rare gases, such as argon, or low-pressure mercury vapor. The first and second plurality of long electrodes provides for a homogeneous discharge over the face of the discharge lamp.