Abstract: A GaN-based LED comprises a substrate; an an-type GaN layer formed on the substrate; an active layer formed on a predetermined region of the n-type GaN layer; a p-type GaN layer formed on the active layer; a transparent electrode formed on the p-type GaN layer; a p-electrode formed on the transparent electrode; an n-type electrode formed on the n-type GaN layer on which the active layer is not formed; and a protective film formed on a resulting structure between the transparent electrode and the n-type electrode, the protective film being composed of a plasma-oxidized transparent layer.

Abstract: Assemblies, systems and components for a bi-polar bone anchor assembly. A receiver member includes a central aperture with upper and lower openings and a transverse channel. A bi-polar member and a bone anchor are loaded into the bottom of the receiver member and an internal threaded ring member fits over the outer lower threaded portion of the receiver member to retain the bi-polar member and the bone anchor therein. The bone anchor is capable of multi-axial and multi-polar positioning with respect to the receiver member. An elongated member may be placed in the channel of the receiver member in contact with the bone anchor member and a retaining member may be applied via the upper opening to press down on the elongated member thereby, locking the bone anchor member in place with the retaining member, bi-polar member, and receiver member.

Abstract: Disclosed herein is a sectional three-dimensional model, which can be assembled by use of an independent single type of pieces without requiring several kinds of pieces having different shapes from one another, and achieve a three-dimensional connection of the pieces. The sectional three-dimensional model includes a plurality of spherical pieces, and each spherical piece includes a pair of coupling recesses symmetrically formed in the spherical piece along a center axis of the spherical piece, and a plurality of coupling protrusions integrally formed at an outer surface of the spherical piece to be arranged in directions perpendicular to the coupling recesses, thereby allowing the plurality of spherical pieces to be connected to one another via insertion of the coupling protrusions into the coupling recesses.

Abstract: Disclosed are an electron emission display device and a driving method thereof, which protect a drive circuit such as a display region or a data driver when the data driver operates erroneously. The display region receives a data signal from a data driver and a scan signal from a scan driver to display an image. A timing controller provides a drive signal to the data driver and the scan driver to drive the data driver and the scan driver. A data sensor senses whether the data driver is malfunctioning. A power supply unit supplies an electric drive source to the display region, the data driver, the scan driver, the timing controller, and the data sensor. In case of data driver malfunction, the data sensor is capable of preventing the supply of power to various parts of the device by disabling the power supply unit.

Abstract: The present invention relates to a nitride semiconductor light emitting device. The nitride semiconductor light emitting device includes a substrate; an n-type nitride semiconductor layer that is formed on the substrate; an active layer that is formed on the n-type nitride semiconductor layer; a p-type nitride semiconductor layer that is formed on the active layer; a transparent electrode that is formed on the p-type nitride semiconductor layer; a p-type bonding electrode that is formed to be connected on the transparent electrode; and an n-type electrode that is formed of a compound containing aluminum or silver and is formed on the n-type nitride semiconductor layer.

Abstract: An electron emission display and a driving method thereof, where a brightness is adjusted differently according to a brightness of a frame in order to reduce power consumption and prevent a brazing fire from occurring, and to easily recognize a change of the brightness.

Abstract: An electron emission display and a driving method thereof adjust a brightness differently according to a brightness of a frame in order to reduce power consumption and prevent a gradual failure from occurring, and easily recognize a change of the brightness. A pixel portion receives a data signal and a scan signal, and displays an image. A data driver generates the data signal using video data and transfers the data signal to the pixel portion. A scan driver transfers the scan signal to the pixel portion. A timing controller transfers a drive signal to drive the data driver and the scan driver, to the data driver and the scan driver. A data processor generates a control signal corresponding to frame data obtained by summing a value of video data inputted during one frame. A power supply section generates a drive voltage and transfers the drive voltage to the pixel portion, the data driver, the scan driver, the timing controller, and the data processor.

Abstract: A driving apparatus, and a driving method for an electron emission display, includes a controller for comparing external video data input signals, switching a polarity control signal in a predetermined period on the basis of the comparison and controlling a video data output signal in accordance with the polarity control signal, and a data driver for modulating the video data signal output from the controller. The switching of the polarity control signal may be shifted temporally when the comparison indicates the video data input signals have the same gray level.

Abstract: The present invention relates to a multi-wavelength laser diode, in which an oscillating structure includes a semiconductor substrate, and a lower cladding layer, an active layer and a ridge formed in their order on the semiconductor substrate. A first metal layer is formed on a first face of the oscillating structure including one end of the ridge, and made of a metal having a high reflectivity in a first wavelength range of at least a predetermined wavelength. A second metal layer is formed on the first metal layer, the second metal layer being made of a metal having a high reflectivity in a second wavelength range under the predetermined wavelength. The multi-wavelength laser diode can improve-the reflective layer structure to achieve a high reflectivity in the entire visible light range.

Abstract: Disclosed herein is an intelligent low-noise block down-converter (LNB) which is implemented to, only when an LNB ID contained therein is the same as an ID of a satellite receiver connected therewith, provide a down-converted signal (IF signal) to the satellite receiver, thereby making it possible to more securely prevent an ID card of the satellite receiver and/or a pay broadcast program from being duplicated.

Abstract: A roller shoe having a brake pad of this invention can perform a stable brake operation as the brake pad is frictioned to the ground if the ankle is bent further a bit more backward by detachably mounting a brake pad of high strength on the heel portion of an inclined plane of the shoe sole where a wheel is mounted. This roller shoe has a structure wherein a wheel for moving a roller shoe wearer by rotation is mounted on a concave groove formed on an inclined plane at the heel portion of the sole of a sports shoe to be axially coupled thereto and a brake unit for performing a brake function by a friction to the ground by bending the ankle backward at a predetermined angle is mounted on the heel portion of the sole where the wheel is mounted.

Abstract: Disclosed herein is a process for cultivating the strains of Bacillus polyfermenticus, which is a beneficial endospore forming bacteria. The process includes an use of certain culture medium containing inexpensive ingredients and is carried out in a fed-batch manner. It allows a significant increase of the yield of the cultivation. In particular, the process for cultivating Bacillus polyfermenticus strain SCD KCCM 10104 is disclosed.