Patent application number | Description | Published |
20080252299 | Cell or stack for evaluating performance of fuel cell and method of evaluating performance of fuel cell using the same - The present invention provides a cell or stack for evaluating the performance of a fuel cell and a method of evaluating the performance of the fuel cell using the cell or stack, in which a semiconductor thermoelectric device, attached to the side surface of the unit cell or stack of the fuel cell, is provided so as to evaluate the performance of the fuel cell in an environment in which temperature is maintained at a uniform temperature. | 10-16-2008 |
20110053030 | Fuel Cell with Gas Diffusion Layer having Flow Channel and Manufacturing Method Thereof - Provided are a fuel cell with a porous gas diffusion layer having a flow channel and a method for manufacturing the same. A metal separator without a flow channel is used, but a flow channel for providing a reaction gas is formed in a gas diffusion layer made of a porous material. This improves precision of stack manufacturing and allows free design of the cooling part. | 03-03-2011 |
20110059387 | HIGHLY PROTON CONDUCTIVE CROSSLINKED VINYLSULFONIC ACID POLYMER ELECTROLYTE COMPOSITE MEMBRANES AND ITS PREPARATION METHOD FOR POLYMER ELECTROLYTE FUEL CELLS - A highly proton conductive polymer electrolyte composite membrane for a fuel cell is provided. The composite membrane includes crosslinked polyvinylsulfonic acid. The composite membrane is produced by impregnating a mixed solution of vinylsulfonic acid as a monomer, a hydroxyl group-containing bisacrylamide as a crosslinking agent and a photoinitiator or thermal initiator into a microporous polymer support, polymerizing the monomer, and simultaneously thermal-crosslinking or photo-crosslinking the polymer to form a chemically crosslinked polymer electrolyte membrane which is also physically crosslinked with the porous support. Further provided is a method for producing the composite membrane in a simple manner at low cost as well as a fuel cell using the composite membrane. | 03-10-2011 |
20110081587 | Apparatus for Detecting Leak in Fuel Cells - Provided is an apparatus for detecting leak in fuel cells. The apparatus includes: a detection gas intake unit connected to a detection gas storage; a supply unit supplying detection gas to supply manifolds of the fuel cells; a recovering unit connected to exhaust manifolds of the fuel cells; and a measuring unit measuring pressure of the detection gas supplied to the fuel cells, wherein in the fuel cells, a product and cooling fluid are exhausted through the exhaust manifolds after cathode/anode reaction gas and cooling fluid are supplied to the inside through the supply manifolds to generate an electrochemical reaction. Accordingly, presence of leak and leaked portions of the entire fuel cells are detected by using an inert detection gas. | 04-07-2011 |
20110236774 | System for Pre-Activation of Polymer Electrolyte Fuel Cell (PEFC) - An apparatus for pre-activation of a polymer electrolyte fuel cell includes a first plate and a second plate hot pressing the unit cell stack, each having a flow channel supplying water vapor to opposing inner surfaces with the unit cell stack therebetween and including a resistor producing heat, a compressor, a temperature controller and a water vapor supplier connected to the flow channels of the plates. The apparatus for pre-activating a polymer electrolyte fuel cell may be used to prepare a prep-activated integrated body of a polymer electrolyte fuel cell membrane electrode assembly and gas diffusion layers by performing hot pressing while supplying water vapor to the unit cell stack to hydrate the polymer electrolyte membrane. And the apparatus for pre-activating a polymer electrolyte fuel cell is used to monitor physical damage of the membrane electrode assembly based on the change of degree of vacuum at a fuel electrode side and an air electrode side using, thereby detecting the leaking membrane electrode assembly in advance. | 09-29-2011 |
20110271742 | Quality Control Apparatus for Gas Diffusion Layer for Fuel Cells - A quality control apparatus for a gas diffusion layer includes a support, at least one first pressure device, a plate provided below the first pressure device and supporting the pressure applied to the gas diffusion layer sample, a first controller controlling the compression of the first pressure device, a thickness gauge measuring the thickness of the gas diffusion layer sample, a flow channel formed in the sample compressing portion to discharge a gas to the gas diffusion layer sample, a gas supply controller, a gas supply source, a pressure gauge, two fixing devices, a third controller controlling the compression of the fixing devices, two second pressure, a second controller controlling the compression of the second pressure device, a stopper, a protrusion, and a load cell. | 11-10-2011 |
20140080022 | Apparatus and Method for Managing Fuel Cell Vehicle System - Provided are an apparatus and a method for managing a fuel cell vehicle system, and more particularly, an apparatus and a method for managing a fuel cell vehicle system capable of optimally maintaining a driving method based on environmental information and product information. | 03-20-2014 |
20140080023 | Apparatus and Method for Managing Stationary Fuel Cell System - Provided are an apparatus and a method for managing a stationary fuel cell system, and more particularly, an apparatus and a method for managing a stationary fuel cell system capable of optimally maintaining a driving method based on environmental information and product information. | 03-20-2014 |
20140236535 | APPARATUS AND METHOD FOR SOFTSENSING FUEL CELL SYSTEM - Provided are an apparatus and a method for soft-sensing a vehicle or stationary fuel cell system capable of predicting a quality variable based on a process variable and providing the predicted quality variable in real time. | 08-21-2014 |
Patent application number | Description | Published |
20100123848 | LED MODULE AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A light emitting diode (LED) module includes a plurality of LEDs which emit light, and a metal substrate on which the LEDs are mounted and which includes a fixing part to be directly fixed to an outer frame, wherein the metal substrate is a heat sink that absorbs heat generated by the LEDs. | 05-20-2010 |
20110001934 | ILLUMINATION OPTICAL UNIT AND DISPLAY APPARATUS HAVING THE SAME - An illumination optical unit and a display apparatus having the same are provided. The display apparatus includes an illumination optical unit which generates and illuminates light; a display element which forms an image by the light illuminated from the illumination optical unit; and a projection optical unit which projects the image formed in the display element on a screen. The illumination optical unit includes a light source which includes a light emitting area, and a polarization converting unit which includes a plurality of polarization prisms which polarize and convert an entering light from the light source. The light source is disposed so that a long width of the light emitting area corresponds to a long width of the polarization prisms. | 01-06-2011 |
20110001936 | OPTICAL SYSTEM - An optical system is provided. The optical system includes a luminous system which comprises a plurality of light source devices and an image unit; and a projection system which receives light having an image through the luminous system, and enlarges and projects the light, wherein the plurality of light source devices comprise a reflection member which reflects light beam emitted from the light source devices, and are disposed so that the light beam emitted from the light source devices is reflected by the reflection member one time and enters to the image unit. | 01-06-2011 |
20110304826 | ILLUMINATING UNIT AND DISPLAY APPARATUS INCLUDING THE SAME - An illuminating unit and a display apparatus including the illuminating unit are provided. The illuminating unit generates and emits light to a display element of the display apparatus, and includes a light source; a uniformizing unit which uniformizes light from the light source and includes a plurality of uniformizing lenses arranged on an optical path; a condensing unit which condenses light from the uniformizing unit to emit the light to the display element and includes a plurality of condensing lenses sequentially arranged on the optical path, and the uniformizing unit and the condensing unit are arranged based on a width of one of a plurality of cell lenses forming the uniformizing lens and a width of an image displayed in the display element. | 12-15-2011 |
20140036359 | SCREEN FOR FRONT PROJECTION APPARATUS AND FABRICATION METHOD THEREOF - A screen for a Fresnel type front projection apparatus is provided. The screen includes a reflective layer including a plurality of reflective protrusions which project toward a front of the screen; each of the plurality of reflective protrusions including a reflective surface which forwardly reflects an image light projected from a projector; and an absorbing surface which absorbs an external light. The reflective surface includes a first region on an inner side thereof on which a reflective coating is not formed and a second region on an outer side thereof on which the reflective coating is formed. | 02-06-2014 |
20140139914 | REFLECTION TYPE SCREEN FOR FRONT PROJECTION DISPLAY APPARATUS - Provided is a front reflection screen for a front projection display apparatus. The front reflection screen includes a reflection layer configured to reflect an incident light including an image light projected from a projector and an external light, and a tint layer disposed before the reflection layer and including light absorbing particles to block a portion of the incident light. | 05-22-2014 |
20150042896 | DISPLAY PANEL AND DISPLAY APPARATUS HAVING THE SAME - A display panel includes an upper plate including a first substrate, a first electrode layer formed on an inner surface of the first substrate, and an absorptive polarizing film formed on an outer surface of the first substrate and having a first polarization axis, a lower plate including a second substrate, a second electrode layer formed on an inner surface of the second substrate, and a reflective polarizing film formed on an outer surface of the second substrate and having a second polarization axis perpendicular or parallel to the first polarization axis, an LC layer filled between the upper plate and the lower plate, and an LC driving power supply connected between the first electrode layer and the second electrode layer and configured to selectively provide an LC driving voltage to the LC layer changing a polarization direction of incident light in the LC layer. | 02-12-2015 |
20150103288 | LIQUID CRYSTAL DISPLAY APPARATUS - A liquid crystal display apparatus includes a liquid crystal panel configured to display images; at least one light source configured to supply light to the liquid crystal panel; a front chassis member and a rear chassis member configured to accommodate the liquid crystal panel and the light source module and a circuit board configured to control the liquid crystal display apparatus. The rear chassis member may include a light source supporting portion supporting the at least one light source and a plurality of side surface portions extending from the light source supporting portion to the rear chassis member. The circuit board may be disposed in at least one of the side surface portions. | 04-16-2015 |
20150183112 | METHOD AND DEVICE FOR GENERATING ROBOT CONTROL SCENARIO - A method for generating a robot control scenario includes generating a judgement frame by a computational means, storing the judgement frame in a storage means, and displaying the judgement frame by receiving a situation cognition frame and an expression frame; generating a stage by the computation means, storing the stage in the storage means, and displaying the stage by selecting at least one judgement frame and at least one transition frame; and connecting a transition frame of one stage to another stage in at least two stages by the computation means, storing the connected stages in the storage means, and displaying the connected stages. According to the present invention, a robot exists within a close distance to people in a human living space, and can recognize a surrounding situation and information provided by the people and provide a service that meets various requests desired by the people. | 07-02-2015 |
20150192835 | DISPLAY APPARATUS AND METHOD OF CONTROLLING THE SAME - A display apparatus includes a self light-emitting transparent display and a transmittance adjuster that is disposed behind the transparent display and is configured to adjust a transmittance of external light transmitted through the transparent display. | 07-09-2015 |