Byungchul
Byungchul Ahn, Seoul KR
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20090251394 | Flat panel display - A flat panel display is disclosed. The flat panel display includes a display panel including data lines, gate lines crossing the data lines, pixels arranged in a matrix format, and a pixel array that allows images to be simultaneously displayed on one screen by suitably disposing the images on one screen, a data drive circuit supplying data to the data lines, a gate drive circuit supplying scan signals to the gate lines, a scalar board converting a resolution of each of the images, and a control board that supplies data received from the scalar board to the data drive circuit and controls operation timing of the data drive circuit and operation timing of the gate drive circuit. a ratio of a horizontal length to a vertical length of the pixel array is 21.3-26.7:10. | 10-08-2009 |
20100291720 | Method of fabricating organic light emitting diode display - A method of fabricating an organic light emitting diode display device includes: sequentially forming a thin film transistor (TFT) array, a first electrode, a bank pattern, a spacer, and a first relevant layer on an acceptor substrate; sequentially forming a metal pattern and an organic light emission material layer on a doner substrate; aligning and attaching the acceptor substrate and the doner substrate, and forming the light emission layer by transferring the organic light emission material onto the acceptor substrate by applying power to the metal pattern; and sequentially forming the second relevant layer and the second electrode on the light emission layer-formed acceptor substrate. | 11-18-2010 |
20120313137 | ORGANIC LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING THE SAME - An organic light emitting device and a method for manufacturing that same are discussed, which can reduce thickness and weight of the device as well as the manufacturing cost. The organic light emitting device includes according to an embodiment an organic light emitting diode (OLED) formed on a glass substrate; an adhesive layer formed to cover the OLED; and a metal foil formed on the adhesive layer to seal the OLED and bonded to the glass substrate, wherein the metal foil is formed of an alloy having the same or substantially the same thermal expansion coefficient as that of the glass substrate. | 12-13-2012 |
20130026505 | LARGE AREA ORGANIC LIGHT EMITTING DIODE DISPLAY - The invention relates to a large area organic light emitting diode display having a uniformed luminescence throughout the display area. The invention suggests an organic light emitting diode display comprising a thin film transistor substrate including a thin film transistor, a driving current line to supply an electric signal to the thin film transistor, a driving line contact hole to expose some portions of the driving current line, and an organic light emitting diode connected to the thin film transistor; a cap including a cap substrate and an auxiliary electrode disposed on a surface of the cap substrate with an area that is at least ⅓ of an area of the cap substrate; a conductive sealing material to electrically connect the auxiliary electrode and the driving current line through the driving line contact hole; and an organic adhesive joining the thin film transistor substrate and the cap. | 01-31-2013 |
20140084256 | ORGANIC LIGHT EMITTING DIODE DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light emitting diode device and a method for manufacturing the same are disclosed. The organic light emitting diode device including a substrate, stacks disposed between a first electrode and a second electrode on the substrate, wherein the stacks including a first stack having a first blue layer and a second stack disposed on the first stack and having a second blue layer, and a first emission layer is formed at a partial region of the first stack, and a second emission layer is formed at a partial region of the second stack. | 03-27-2014 |
20140168184 | ORGANIC LIGHT EMITTING DISPLAY - An organic light emitting display includes a display panel including data lines, gate lines crossing the data lines, and pixels and a panel driving circuit which supplies a data voltage to the pixels of the display panel during a power-on period and then is additionally driven for a predetermined power-on delay duration time delayed from a power-off start time of a power input signal. The panel driving circuit supplies a reverse polarity recovery voltage having a polarity opposite the data voltage to the pixels or supplies a recovery voltage, which is different from a gate voltage of a driving element of each of the pixels, to a source terminal of the driving element of each pixel for the predetermined power-on delay duration time. | 06-19-2014 |
20150034923 | WHITE ORGANIC LIGHT EMITTING DIODE DEVICE - Provided is a white organic light emitting diode device, including first and second electrodes facing each other above a substrate, first and second charge generation layers formed between the first electrode and the second electrode, a first stack disposed between the first electrode and the first charge generation layer and including a first light emitting layer, a second stack disposed between the first charge generation layer and the second charge generation layer and including a second light emitting layer, and a third stack disposed between the second charge generation layer and the second electrode and including a third light emitting layer, wherein two of the first to third light emitting layers emit a blue light and the rest light emitting layer emits a yellow-green light. | 02-05-2015 |
20150034933 | ORGANIC LIGHT EMITTING DIODE DISPLAY HAVING THIN FILM TRANSISTOR SUBSTRATE USING OXIDE SEMICONDUCTOR AND METHOD FOR MANUFACTURING THE SAME - Provided is a thin film transistor having an oxide semiconductor material for an organic light emitting diode display and a method for manufacturing the same. The organic light emitting diode display comprises: a gate electrode formed on a substrate; a gate insulating layer formed on the gate electrode; a semiconductor layer formed on the gate insulating layer to overlap with the gate electrode, and including a channel area and source and drain areas which extend from the channel area to both outsides, respectively and are conductorized; an etch stopper formed on the channel area and exposing the source area and the drain area; a source electrode contacting portions of the exposed source electrode; and a drain electrode contacting portions of the exposed drain electrode. | 02-05-2015 |
Byungchul An, Seoul KR
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20140333261 | AUTOMATED RECHARGING SYSTEM AND METHOD FOR AN ELECTRIC VEHICLE - An automated recharging system includes an electric vehicle and a charging apparatus. The electric vehicle includes a rechargeable energy storage system (RESS), a charging receptacle, and a first controller configured to monitor the status of the electric vehicle and the charge level of the RESS. The charging apparatus includes a charging plug configured to mate with the charging receptacle to recharge the RESS, and a movement mechanism to substantially align the charging plug with and insert it into the charging receptacle. The charging apparatus also includes a second controller to control the movement mechanism and to communicate with the first controller. The electric vehicle further includes an array of radio-frequency identification (RFID) tags arranged around the charging receptacle, and the charging apparatus further includes a RFID reader configured to read the RFID tags to determine the location of the charging plug in relation to the charging receptacle. | 11-13-2014 |
Byungchul Bae, Daejeon KR
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20140109105 | INTRUSION DETECTION APPARATUS AND METHOD USING LOAD BALANCER RESPONSIVE TO TRAFFIC CONDITIONS BETWEEN CENTRAL PROCESSING UNIT AND GRAPHICS PROCESSING UNIT - An intrusion detection apparatus and method using a load balancer responsive to traffic conditions between a central processing unit (CPU) and a graphics processing unit (GPU) are provided. The intrusion detection apparatus includes a packet acquisition unit, a character string check task allocation unit, a CPU character string check unit, and a GPU character string check unit. The packet acquisition unit receives packets, and stores the packets in a single task queue. The character string check task allocation unit determines the number of packets in the packet acquisition unit, and allocates character string check tasks to the CPU or the GPU. The CPU character string check unit compares the character strings of the packets with a character string defined in at least one detection rule inside the CPU. The GPU character string check unit compares the character strings of the packets with the character string inside the GPU. | 04-17-2014 |
Byungchul Cho, Gyeonggi-Do KR
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20150249004 | METHOD OF FABRICATING NITRIDE FILM AND METHOD OF CONTROLLING COMPRESSIVE STRESS OF THE SAME - The present invention relates to a method of fabricating a nitride film, which may easily control compressive stress while stably maintaining the film quality using the atomic layer deposition, and the nitride film having compressive stress is formed on a substrate by performing a unit cycle at least one time, the unit cycle including: a first step of providing a source gas on the substrate to absorb at least of the source gas on the substrate; a second step of providing a first purge gas on the substrate; a third step of forming a unit deposition film on the substrate by providing the substrate with a stress controlling gas including a nitrogen gas (N | 09-03-2015 |
Byungchul Cho, Anyang KR
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20110235860 | Method to estimate 3D abdominal and thoracic tumor position to submillimeter accuracy using sequential x-ray imaging and respiratory monitoring - A method of estimating target motion for image guided radiotherapy (IGRT) systems is provided. The method includes acquiring by a kV imaging system sequential images of a target motion, computing by the kV imaging system from the sequential images an image-based estimation of the target motion expressed in a patient coordinate system, transforming by the kV imaging system the image-based estimation in the patient coordinate system to an estimate in a projection coordinate system, reformulating by the kV imaging system the projection coordinate system in a converging iterative form to force a convergence of the projection coordinate system to output a resolved estimation of the target motion, and displaying by the kV imaging system the resolved estimation of the target motion. | 09-29-2011 |
Byungchul Choi, Seoul KR
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20100055575 | LITHIUM SECONDARY BATTERY OF ELECTROLYTE CONTAINING AMMONIUM COMPOUNDS - Disclosed is a lithium secondary battery using a cathode containing a lithium-containing transition metal oxide and an anode containing graphitized carbon, characterized in that an ammonium compound capable of providing ammonium ions is added to a non-aqueous electrolyte. Therefore, the present invention provides a lithium secondary battery having improved high-temperature performance by reducing decreases of residual capacity and recovery capacity resulting from high-temperature storage of the battery, via addition of such an ammonium compound. | 03-04-2010 |
Byungchul Jang, Daejeon KR
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20090202885 | Process to prepare the self-stand electrode using porous supporter of electrode catalyst for fuel cell, a membrane electrode assembly comprising the same - The present invention relates to a porous electrode used in a polymer electrolyte membrane fuel cell, and more particularly to a method of preparing a membrane-electrode assembly by forming a self-stand electrode layer by coating catalyst ink on a non-conductive substrate having a macropore and then joining it to a polymer electrolyte membrane. The porous self-stand electrode according to the present invention allows moisture and gas to be smoothly discharged and inflowed in a high current density operation region to improve the performance of a fuel cell, and can be freely cutted to simplify the preparation process of the membrane-electrode assembly. | 08-13-2009 |
20100233578 | Process for the Electrochemical Catalysts of Fuel Cells Based on Polymer Electrolytes - The present invention relates to a process for the preparation of electrochemical catalysts of the polymer electrolytes-based fuel cells. With the process of the present invention, high catalyst activity while uniformly supporting a large amount of metal particles on a surface of a support can be achieved. Also, the present invention provides a process for the preparation of electrochemical catalysts of the polymer electrolytes-based fuel cells capable of using a small amount of toxic solvent without an additional high-temperature hydrogen annealing. | 09-16-2010 |
20100330463 | PROCESS FOR PREPARING OF A CATALYST SOLUTION FOR FUEL CELL AND A MEMBRANE ELECTRODE ASSEMBLY USING THE SAME - The present invention discloses a process for preparing catalyst solution for a membrane-electrode assembly in a fuel cell, which comprises the steps of a) mixing a catalyst solution (Solution A) wherein catalyst particles are dispersed in water and an ion conductive resin solution (Solution B) wherein an ion conductive resin is dissolved in water, low boiling point organic solvent or a mixture thereof, to form a dispersion; b) mixing the dispersion obtained from step a) with functional additive dissolved in high boiling point solvent or a mixture of low boiling point solvent arid water (Solution C) to prepare catalyst ink dispersion; and c) aging the catalyst ink dispersion obtained from step b). | 12-30-2010 |
Byungchul Jang, Allen, TX US
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20150145497 | LOW-LOSS STEP-UP AND STEP-DOWN VOLTAGE CONVERTER - A switch-mode DC-DC voltage converter including a boost stage in the form of a charge pump and a buck stage. Control circuitry is provided that enables the operation of the buck stage while the charge pump stage is also enabled, followed by disabling of the charge pump stage as the input voltage and output voltage increase. The buck converter stage is constructed so that it regulates the output voltage at a voltage above that which disables the charge pump stage. Conduction losses in the main current path, due to the necessity of a power FET or other switching device, are avoided. | 05-28-2015 |
Byungchul Kim, Seoul KR
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20140163732 | METHOD FOR CHECKING A TRAVELABLE AREA OF A PLANE OF TRAVEL FOR A ROBOT, ROBOT AND RECORDING MEDIUM - There is provided a method for checking a moving available area of a robot on a moving surface robot. The method for checking a moving available area of a robot on a moving surface robot according to an exemplary embodiment of the present invention includes a) generating a geometric model of the moving surface, b) generating a triangle mesh by triangulating curved surfaces of the moving surface by using the geometric model, c) calculating angles between any one triangle of a plurality of triangles positioned within the triangle mesh and triangles adjacent to the any one triangle, and d) primarily checking moving available areas of a robot by determining whether or not the angles between any one triangle and the triangles adjacent to the any one triangle are within a predetermined range. | 06-12-2014 |
Byungchul Kim, Suwon-Si KR
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20100242071 | METHOD AND APPARATUS FOR TRANSFERRING USER INFORMATION BETWEEN TERMINALS IN BROADCAST STREAMING SERVICE - A method and apparatus for transferring user information between different terminals are disclosed. The method includes saving by a first terminal, when a change is made to user information during playback of content, the changed user information in a scene history, performing a terminal change from the first terminal to a second terminal, and resuming, by the second terminal, playback of the content from a continued scene after the last scene played back by the first terminal. Consequently, in a terminal change, the user may use the second terminal to play back the same content from the continued scene using the same content usage environment as the first terminal. | 09-23-2010 |
Byungchul Lee, Seoul KR
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20150101759 | FILM PEELING APPARATUS - A film peeling apparatus that peels a film attached to a substrate includes a chamber, a transfer unit, and first peeling rollers. The transfer unit is disposed in the chamber to transfer the substrate. The first peeling rollers are disposed in the chamber, each of the first peeling rollers includes a first electrostatic chuck to adsorb a first film attached to the substrate. The first peeling rollers roll the adsorbed first film to peel the first film from the substrate. | 04-16-2015 |
Byungchul Lee, Hwaseong-Si KR
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20130098327 | BALANCE SHAFT ASSEMBLY FOR VEHICLE - A balance shaft assembly for a vehicle, which includes a balance shaft carrier disposed under a cylinder block and, includes an oil pan, an upper end of the oil pan being coupled to a bottom of the cylinder block, may include a balance shaft protruding rearward from the balance shaft carrier and rotatably supported by the balance shaft carrier, a balance weight formed on an outer circumferential surface of the balance shaft, and a balance weight receiving portion formed at the oil pan and coupled to the balance shaft carrier to seal the balance weight therebetween. | 04-25-2013 |
Byungchul Lee, Daejeon KR
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20100102279 | RADIATION SHIELDING MEMBERS INCLUDING NANO-PARTICLES AS A RADIATION SHIELDING MATERIAL AND METHOD FOR PREPARING THE SAME - Disclosed is a radiation shielding member having improved radiation absorption performance, including 80.0˜99.0 wt % of a polymer matrix or metal matrix and 1.0˜20.0 wt % of a radiation shielding material in the form of nano-particles having a size of 10˜900 nm as a result of pulverization, wherein the radiation shielding material is homogeneously dispersed in the matrix through powder mixing or melt mixing after treatment with a surfactant which is the same material as the matrix or which has high affinity for the matrix. A preparation method thereof is also provided. This radiation shielding member including the nano-particles as the shielding material further increases the collision probability of the shielding material with radiation, compared to conventional shielding members including micro-particles, thus reducing the mean free path of radiation in the shielding member, thereby exhibiting superior radiation shielding effects. At the same density, the shielding member has reduced thickness and volume and is thus lightweight. The porosity of the shielding member is minimized, thereby preventing the deterioration of shielding effects and properties of the shielding member and realizing applicability in spent fuel managing transport/storage environments and the like. | 04-29-2010 |
Byungchul Shin, Seoul KR
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20140147423 | PHARMACEUTICAL COMPOSITION CONTAINING FIBULIN-3 PROTEIN AS AN ACTIVE INGREDIENT FOR INHIBITING THE GROWTH OF CANCER STEM CELLS - The present invention relates to fibulin-3 protein and a pharmaceutical composition comprising the fibulin-3 protein as an active ingredient for inhibiting the growth of cancer stem cells. More particularly, in cancer stem cells separated from H460 and A549 cells, which are non-small-cell lung cancer cells, using ALDH1 activity as a marker, fibulin-3 induces the reductions of wnt/β-catenin, MMP2 and 7, which display characteristics of cancer stem cells, thereby decreasing the activated growth and penetration of the cancer stem cells. In addition, the purified fibulin-3 protein inhibits the growth of the non-small-cell lung cancer cell line A549, the breast cancer cell line MDA-MB231, and the cancer stem cell line active ALDH1. Therefore, fibulin-3 can be valuably used as an active ingredient of the pharmaceutical composition for inhibiting the growth of cancer stem cells. | 05-29-2014 |