Abstract: A field emission backlight unit for a liquid crystal display (LCD) includes: a lower substrate; first electrodes and second electrodes alternately formed in parallel lines on the lower substrate; emitters disposed on at least the first electrodes; an upper substrate spaced apart from the lower substrate by a predetermined distance such that the upper and lower substrates face each other; a third electrode formed on a bottom surface of the upper substrate; and a fluorescent layer formed on the third electrode. Since the backlight unit has a triode-type field emission structure, field emission is very stable. Since the first electrodes and the second electrodes are formed in the same plane, brightness uniformity is improved and manufacturing processes are simplified.

Abstract: The present invention relates to an apparatus for maintaining freshness by applying a displacement current. Application of the displacement current to an object of preservation interrupts an ion channel of a living microorganism present in the object of preservation, thereby preventing the microorganism from proliferating and subsequently maintaining the freshness of the object of preservation. The apparatus for maintaining freshness by applying a displacement current includes: a displacement current control unit which regulates the displacement current at less than 1 A and less than 3 GHz; and a displacement current applying unit, comprising a first electrode, and a second electrode which faces the first electrode.

Abstract: Disclosed herein is a freshness maintaining apparatus for maintaining freshness of an object in the apparatus. The apparatus comprises a first shelf having a first electrode disposed therein a second shelf having a second electrode disposed therein; the first shelf and the second shelf being disposed in a manner to be parallel to one another; and a power supply unit in electrical communication with the first electrode and the second electrode; the first electrode having an electrical polarity that is opposedly disposed to an electrical polarity of the second electrode.

Abstract: A refrigeration and freezing control system and method thereof, which stores an object for preservation without quality deterioration for a long period, and which controls a supercooling or maintains freshness by controlling a frequency range. The refrigeration and freezing control system includes an electrode module having an anode and a cathode which faces the anode, and an electric field applying module which applies a voltage to the anode and the cathode, which generates an electric field having at least two frequency ranges between the anode and the cathode, and controls a frequency range of the applied voltage.

Abstract: A method of forming a Carbon NanoTube (CNT) structure and a method of manufacturing a Field Emission Device (FED) using the method of forming a CNT structure includes: forming an electrode on a substrate, forming a buffer layer on the electrode, forming a catalyst layer in a particle shape on the buffer layer, etching the buffer layer exposed through the catalyst layer, and growing CNTs from the catalyst layer formed on the etched buffer layer.

Abstract: Disclosed is a method of fabricating an optical fiber or an optical device doped with d metal ion and/or rare earth ion, comprising steps of: forming a partially-sintered fine re in a base material for fabricating the optical fiber or the optical device; soaking the fine re into a doping solution containing a reducing agent together with metal ion and rare on during a selected time; drying the fine structure in which the metal ion and/or rare ion soaked; and heating the fine structure such that the fine structure is sintered.

Abstract: A field emission backlight unit for a liquid crystal display (LCD) includes: a lower substrate; first electrodes and second electrodes alternately formed in parallel lines on the lower substrate; emitters disposed on at least the first electrodes; an upper substrate spaced apart from the lower substrate by a predetermined distance such that the upper and lower substrates face each other; a third electrode formed on a bottom surface of the upper substrate; and a fluorescent layer formed on the third electrode. Since the backlight unit has a triode-type field emission structure, field emission is very stable. Since the first electrodes and the second electrodes are formed in the same plane, brightness uniformity is improved and manufacturing processes are simplified.

Abstract: A method of manufacturing a Field Emission Display (FED) having a double gate structure using a half tone photomask includes sequentially forming a cathode material layer, a resistance material layer, and a photoresist on a substrate, arranging a half tone photomask on the photoresist, the half tone photomask having a first pattern that shields light and a second pattern that partially transmits light formed in respective predetermined shapes, exposing the photoresist to light to develop it, forming a resistance layer and a cathode electrode by sequentially etching the resistance material layer and the cathode material layer exposed through the developed photoresist, etching the developed photoresist until the resistance layer located on an upper part of a pad region of the cathode electrode is exposed, exposing the pad region of the cathode electrode by etching the resistance layer exposed through the etched photoresist, and removing the photoresist.

Abstract: A method for manufacturing a display device using light emitting diode chips contemplates manufacturing a plurality of light emitting diode (LED) chips using a porous template; forming a plurality of first electrodes on a substrate; attaching the LED chips to pixel sites on the first electrodes using fluidic self assembly (FSA); and forming a plurality of second electrodes on a top surface of the LED chips.

Abstract: A system, medium, and method conducing a user's breathing, in which a sound generated during a user's exhale and/or an ambient temperature change occurring during the exhale is sensed to measure a respiratory waveform of the user. Respiratory information of the user may then be produced from the respiratory waveform, and when the respiratory information of the user is different from normal respiratory information of the user, breathing information according to the normal respiratory information may be provided to the user so the user can use the same to modify their breathing.

Abstract: An analyzing method and system includes projecting light onto a specimen, detecting an optical spectrum from the specimen, dividing the detected optical spectrum by a predetermined time interval, applying a weighting vector and a gain and offset vector to the divided spectra to generate a resolution vector, quantizing an analog signal of the resolution vector to a digital signal, and applying a synthesis vector to the quantized spectra to restore the quantized spectra to a size of the optical spectrum. A spectrum having a large amplitude difference is temporally divided and is analyzed by applying different resolutions to individual time intervals. Spectral portions of the spectrum having relatively small peak amplitudes are selected as a region of interest (ROI) to be modified.

Abstract: An optical DPSK signal demodulator includes a signal separator that separates an optical signal into an input optical signal and an output optical signal in a signal optical path. First and second reflectors are provided at a predetermined interval and reflect the optical signals with a predetermined time delay to have substantially the same intensity. A phase shifter is provided between the first and second reflectors and configured to allow the optical signals reflected from the first and second reflectors to have a phase difference.

Abstract: Provided are a vertical interconnection structure including carbon nanotubes and a method of fabricating the same. The vertical interconnection structure includes a substrate; a lower electrode formed on the substrate; a catalyst layer formed on the lower electrode; an inactivated catalyst layer covering the lower electrode and having a first hole exposing the catalyst layer; an insulating layer which is formed on the inert catalyst layer and has a second hole connected to the first hole; a plurality of carbon nanotubes grown from an exposed area of the catalyst layer by the first hole; an upper electrode on the insulating layer being electrically connected to the carbon nanotubes, the inactivated catalyst layer is formed through a thermal reaction between the catalyst layer covering the lower electrode except for the catalyst layer in the first hole and a passivation layer having a third hole corresponding to the second hole.

Abstract: A display device includes: a first substrate and a second substrate, a plurality of first electrodes, a light emitting layer, and a plurality of second electrodes. The first and second substrates are spaced apart to face each other, and the plurality of first electrodes are formed on an inner surface of the first substrate. The light emitting layer is arranged on the plurality of first electrodes and includes phosphor bodies and light emitting sources mixed therein. The plurality of second electrodes are arranged on an inner surface of the second substrate.

Abstract: Disclosed are an apparatus and method for testing performance of a mobile station having a global positioning system (GPS) mounted therein. The method provides for virtually changing parameters requited for a registration at a base station so that the mobile station excludes the registration and directly enters a test state with an idle mode, and testing the performance of the mobile station in the idle mode test state. Accordingly, no re-boot is necessary to register with the base station upon completion of the test.

Abstract: A novel method of forming catalyst particles, on which carbon nanotubes grow based, on a substrate with increased uniformity, and a method of synthesizing carbon nanotubes having improved uniformity are provided. A catalytic metal precursor solution is applied to a substrate. The applied catalytic metal precursor solution is freeze-dried, and then reduced to catalytic metal. The method of forming catalyst particles can minimize agglomeration and/or recrystallization of catalyst particles when forming the catalyst particles by freeze-drying the catalyst metal precursor solution. The catalyst particles formed by the method has a very uniform particle size and are very uniformly distributed on the substrate.

Abstract: A health care apparatus and method are provided. The apparatus includes: a motion sensing unit; a bio-electric potential sensing unit sensing an electric potential signal of the health examinee corresponding to the sensed result; and an analysis unit analyzing the sensed result. By recognizing a current motion of the examinee and sensing an electric potential signal corresponding to the recognized current motion from the examinee, a more reliable health index of the examinee can be calculated. Even when information on the current motion of the health examinee is not given, the current motion can be recognized by the apparatus and method. Furthermore, since the health examinee is notified of the calculated health index in real time, the health examinee can be informed immediately if the physical condition is in an emergency state. As a result, the examinee can respond quickly to the emergency situation.

Abstract: A ferroelectric cold cathode and a ferroelectric field emission device including the ferroelectric cold cathode includes: a substrate; a lower electrode layer arranged on a upper surface of the substrate, the lower electrode layer including a conductive material; a ferroelectric layer arranged on a upper surface of the lower electrode, the ferroelectric layer including a ferroelectric material; and an upper electrode including an ultrafine linear material net arranged on the ferroelectric layer and exposing a portion of the upper surface of the ferroelectric layer through a plurality of net holes of conductive ultrafine linear material particles distributed in a net structure.

Abstract: An apparatus for attaching a biosignal measurement sensor to a subject including a housing having an open space at one side, an installation portion installed in the open space, on which the biosignal measurement sensor is installed, a plurality of detection electrodes installed at an open side of the housing to contact the subject, and arranged along a circumferential edge of the installation portion to form pairs of detection electrodes facing each other with respect to a center of arrangement, an actuator installed in the housing to rotate and linearly move the installation portion, and a circuit portion searching for the detection electrodes that provide optimal detection data based on a difference in signals between the pairs of detection electrodes, and driving the actuator to allow a pair of sensor electrodes provided at the biosignal measurement sensor to be arranged in the same direction as the searched detection electrodes.

Abstract: An electrode for measuring an electrocardiogram. The electrode comprises a signal detector operable to detect an electrocardiogram signal. An electrolytic gel is coated onto a first surface of the signal detector. The gel is electrically conductive and operable to adhere to a skin. A controller connector is electrically connected to the signal detector.