Patent application number | Description | Published |
20120206666 | DISPLAY DEVICE USING SWITCHING PANEL AND METHOD FOR MANUFACTURING SWITCHING PANEL - An image display device includes a display panel which displays an image, and a switching panel which operates in a 2-dimensional (“2D”) mode or in a 3-dimensional (“3D”) mode, where the switching panel controls the image of the display panel to be recognized as a 2D image in the 2D mode and as a 3D image in the 3D mode, where the switching panel includes: a first and second substrates opposite to each other; a first electrode layer on the first substrate; a first alignment layer on the first electrode layer; a second electrode layer on the second substrate; and a liquid crystal layer between the first substrate and the second substrate, where the switching panel includes a unit elements, and when no voltage is applied between the first electrode layer and the second electrode layer, a pretilt angle of the liquid crystal layer is repeated in the unit elements. | 08-16-2012 |
20130208020 | DISPLAY APPARATUS AND METHOD OF DISPLAYING THREE-DIMENSIONAL IMAGE USING THE SAME - A display apparatus includes a display panel including a three-dimensional (“3D”) pixel, including multiple subpixels corresponding to multiple viewpoints, a viewpoint detecting part configured to detect a target viewpoint, a display panel driver configured to generate grayscale data of the subpixels based on the detected target viewpoint, and a light converting element including a light converting axis sequentially corresponding to central regions of the subpixels including colors different from one another And configured to convert an image on the display panel into a 3D image. | 08-15-2013 |
20140098087 | THREE-DIMENSIONAL IMAGE DISPLAY DEVICE - A three-dimensional image display device includes: a display panel which includes a first pixel and a second pixel and displays a frame image including a positive frame image including a first right-eye image and a first left-eye image displayed in the first and second pixels, respectively, and a negative frame image including a second left-eye image and a second right-eye image displayed in the first and second pixels, respectively; and a liquid crystal lens panel disposed on the display panel and which provides the first and second right-eye images to a right eye of a viewer and provides the first and second left-eye images to a left eye of the viewer, where the display panel sequentially displays the positive frame image and the negative frame image during an n-th frame period, and the negative frame image and the positive frame image during an (n+1)-th frame image. | 04-10-2014 |
20140118648 | LIQUID CRYSTAL LENS, A LIQUID CRYSTAL MODULE HAVING THE LIQUID CRYSTAL LENS AND A METHOD OF DRIVING THE LIQUID CRYSTAL MODULE - A liquid crystal lens includes a plurality of first sub liquid crystal portions having refractive indexes varied based on voltages applied thereto, a plurality of second sub liquid crystal portions having refractive indexes varied based on voltages applied thereto, where the second sub liquid crystal portions are adjacent to the first sub liquid crystal portions, respectively and a controller which controls the voltages applied to the first sub liquid crystal portions and the voltage applied to the second sub liquid crystal portions to provide a lens part. | 05-01-2014 |
20150036212 | DISPLAY DEVICE AND METHOD FOR MANUFACTURING THEREOF - A method of manufacturing a display device includes forming a first signal line and a second signal line on a first substrate, forming a first insulating layer, forming a first electrode layer on the first insulating layer, forming a first electrode piece and a first lens electrode from the first electrode layer based on a first mask, forming a second insulating layer on the first electrode piece and the first lens electrode, defining a first contact hole exposing the first signal line based on a second mask, and defining a second contact hole exposing the second signal line on the second mask, forming a second electrode layer on the second insulating layer, forming a lower electrode from the second electrode layer based on the first mask, forming a third electrode layer on the second insulating layer, and forming an upper electrode and a second lens electrode. | 02-05-2015 |
20150147532 | FLEXIBLE DISPLAY DEVICE - A flexible display device includes a flexible display panel and a window member. The flexible display device includes a folding area and a peripheral area disposed adjacent to the folding area. The window member includes at least first and second base layers. The second base layer is overlapped with the first base layer and has a modulus of elasticity that is higher than that of the first base layer. A thickness of a first portion of the first base layer, which is overlapped with the folding area, is greater than a thickness of a second portion of the first base layer, which is overlapped with the peripheral area. | 05-28-2015 |
20150192962 | PORTABLE TERMINAL HAVING FLEXIBLE DISPLAY - A portable terminal, including a first housing including opposing first and second sides, a second housing including opposing first and second sides, a hinge connecting the first sides of the first and second housings, a flexible display including a first end disposed in the second side the first housing, a second end disposed in the second side of the second housing, and a driver configured to drive the display, wherein the first housing and the second housing are configured to rotate on the hinge to form an angle in therebetween such that a corresponding portion of the display is exposed, and the driver is configured to output driving signals corresponding to the angle to the flexible display, such an image is displayed on the exposed portion of the flexible display. | 07-09-2015 |
20150268697 | FLEXIBLE DISPLAY DEVICE INCLUDING MULTI-LAYER WINDOW MEMBER - A flexible display device includes a flexible display panel and a window member. The flexible display panel includes a folding area, and a peripheral area disposed adjacent to the folding area. The window member includes a first base layer on the flexible display panel, and a second base layer having a substantially same modulus as that of the first base layer. A first thickness portion of the second base layer, which overlaps the folding area, has a thickness smaller than a thickness of a second thickness portion of the second base layer, which overlaps the peripheral area. | 09-24-2015 |
Patent application number | Description | Published |
20120200086 | METHOD AND SYSTEM FOR CONTROLLING WIND FARM WHEN WIND SPEED VARIES ABRUPTLY - The present invention relates to a method and system for controlling a wind farm when a ramp up or ramp down rate of the wind farm does not satisfy a grid-code or corresponding criteria due to an abrupt change in wind speed. The method and system for controlling a wind farm includes the steps of measuring speed and direction of wind performed outside the wind farm, sequentially controlling wind turbines if the wind speed abruptly changes considering a time for the wind to arrive at the wind turbines, determining the number of wind turbines to be controlled simultaneously so that the wind farm may satisfy the grid-code at this point, grouping the wind turbines, determining a control sequence and a control time of each group, and adjusting a control end time if stopping times of adjacent groups are overlapped when the wind turbines are stopped. | 08-09-2012 |
20130238244 | METHOD FOR PREDICTING WIND CONDITIONS IN WIND FARM - A method for predicting wind conditions in a wind farm is provided. The method includes the steps of: (a) measuring wind conditions including a wind speed and a wind direction by means of wind condition measurement devices disposed outside the wind farm; (b) compensating for an error occurring while the wind conditions measured by the wind condition measurement devices are reaching the wind farm; and (c) calculating wind conditions in each wind turbine in the wind farm after a predetermined time based on the wind conditions whose error is compensated in step (b). According to the present invention, it is possible to stably operate the wind farm and effectively operate the entire power grid associated with the wind farm by accurately predicting the wind conditions after a predetermined time to minimize the fluctuation in power output of the wind farm due to a change in the wind conditions. | 09-12-2013 |
20140055118 | HIGH EFFICIENCY DC/DC CONVERTER WITH HIGH CONVERSION RATIO - A high efficiency DC/DC converter with high conversion ratio is provided. The DC/DC converter includes a power switch for selectively switching an electrical connection between one side of a power supply and anodes of a first diode and a second diode, a first capacitive element whose one side is connected to a cathode of the first diode, a second capacitive element whose one side is connected to a cathode of the second diode, a first-first switch for selectively switching an electrical connection between the other side of the first capacitive element and the other side of the power supply, and a second-first switch for selectively switching an electrical connection between the other side of the first capacitive element and one side of the second capacitive element. | 02-27-2014 |
20140375054 | METHOD OF CONTROLLING INERTIA IN WIND FARM - The present invention relates to a method of controlling a wind farm. A method of controlling inertia in a wind farm includes obtaining information about the frequency of an electrical grid which has been received from the electrical grid or calculated using the voltage of the wind turbine, receiving information about the rotor speed of the wind turbine, calculating the kinetic energy of the wind turbine using the information about the rotor speed, calculating an individual droop coefficient of the wind turbine using the calculated kinetic energy, and controlling the wind turbine using the calculated droop coefficient. | 12-25-2014 |
20150337808 | SYSTEM AND METHOD FOR CONTROLLING VOLTAGE AT POINT OF COMMON COUPLING OF WIND FARM - A system and method for controlling voltage at a point of common coupling of a wind farm including a plurality of wind turbines is provided. The method includes: calculating a first voltage error value, which is a difference between a reference voltage value of the point of common coupling and an actual voltage value of the point of common coupling; calculating a compensation reference voltage value based on the first voltage error value; calculating a second voltage error value by subtracting a voltage value of an output terminal of a wind turbine from a sum of a reference voltage value of the wind turbine and the compensation reference voltage value; calculating a reactive power compensation value corresponding to the second voltage error value; and injecting a reactive current corresponding to the reactive current compensation value into a power grid. | 11-26-2015 |
Patent application number | Description | Published |
20090213707 | Recording medium and method and apparatus for recording data - A recording medium and a method and apparatus for recording data are disclosed. The recording medium includes a data area in which data is recorded, a lead-in area arranged radially inwardly of the data area, and a lead-out area arranged radially outwardly of the data area, wherein the lead-in area includes information indicating whether pre-recording has been performed with respect to a portion of the lead-in area. | 08-27-2009 |
20090279401 | Recording Medium, Apparatus and Method for Recording/Reproducing Data on/From Recording Medium - A recording medium and an apparatus for recording/reproducing data on the recording medium, which are capable of controlling access to the recording medium by recording control information for controlling access for reading the data, are disclosed. When a function included in the recording medium cannot be performed, Unknown Rules are applied, and, when the function included in the recording medium can be performed, Known Rules are applied. Even in the Known Rules, a password may be used such that data reading is controlled. Accordingly, it is possible to compatibly reproduce the data from different versions of recording media. It is difficult for a user to access to the recording medium such that content protection can be improved. | 11-12-2009 |
20090310451 | Recording medium, and a method and apparatus for managing the recording medium - A recording medium, and a method and apparatus for manage the recording medium are disclosed. | 12-17-2009 |
20110129872 | METHOD FOR A PRODUCTION OF A RECOMBINANT PROTEIN USING YEAST CO-EXPRESSION SYSTEM - The present invention relates to a method for mass production of a recombinant protein comprising the step of culturing a yeast transformed with: a recombinant gene construct comprising a yeast promoter, a gene coding a signal sequence and a gene coding a target protein; and also with one or more genes coding folding accessory protein selected from the group consisting of PDI1 (protein disulfide isomerase 1), SEC23 (secretory 23), TRX2 (thioredoxin 2) AHA1 (activator of heat shock protein 90 ATPase), and SCJ1 ( | 06-02-2011 |
20110138137 | RECORDING MEDIUM FOR ARCHIVING DATA, RECORDING METHOD, RECORDING APPARATUS, REPRODUCING METHOD, AND REPRODUCING APPARATUS - A recording medium for archiving data, a recording method, a recording apparatus, a reproducing method, and a reproducing apparatus are disclosed. The recording medium includes a data area for recording user data and a management area for managing information recorded on the recording medium. The management information includes data archiving information. | 06-09-2011 |
20110143409 | METHOD FOR PRODUCING ETHANOL FROM XYLOSE USING RECOMBINANT SACCHAROMYCES CEREVISIAE INVOLVING COUPLED USE OF NADH AND NAD+ - Disclosed is a method for producing ethanol from xylose using recombinant | 06-16-2011 |
20120063279 | RECORDING MEDIUM, DATA RECORDING/REPRODUCING METHOD, AND DATA RECORDING/REPRODUCING APPARATUS - A recording medium, a data recording/reproducing method and a data recording/reproducing apparatus are disclosed. A recording medium comprises a data zone where user data are recorded; an inner zone located at an inner circumference of the data zone; and an outer zone located at an outer circumference of the data zone, wherein the data zone includes at least one spare area, and at least one of the inner zone and the outer zone includes at least one disc management area, the disc management area including: defect management information of the recording medium; general management information including information of the defect management information; and address information of the spare area that can be used as a defective replacement cluster, the general management information including address information per cluster of the disc management area where the defect management information is recorded. According to the recording medium, the data recording/reproducing method and the data recording/reproducing apparatus of the present invention, the defect occurring in the recording medium can be managed more efficiently. | 03-15-2012 |
20120122172 | METHOD FOR PRODUCING ETHANOL FROM XYLOSE USING RECOMBINANT SACCHAROMYCES CEREVISIAE TRANSFORMED TO ELIMINATE FUNCTIONS OF GENES INVOLVED IN TOR SIGNAL TRANSDUCTION PATHWAY - Disclosed is a method for producing ethanol from zylose using a | 05-17-2012 |
20120329104 | MODIFIED MICROORGANISM HAVING ENHANCED XYLOSE UTILIZATION - A modified microorganism having enhanced xylose utilization, an expression vector for constructing the modified microorganism, and a method of producing a chemical using the same are disclosed. | 12-27-2012 |
Patent application number | Description | Published |
20080230466 | Submerged Hollow Fiber Membrane Module - Disclosed is a submerged hollow fiber membrane module which is easy to expand, has a small installation area, and exhibits excellent contamination prevention and durability. The submerged hollow fiber membrane module comprises: (I) a module body divided into two portions which has a permeated water collection space ( | 09-25-2008 |
20080292823 | A Braided-Reinforced Composite Hollow Fiber Membrane - A braid-reinforced composite hollow fiber membrane is disclosed. The braid-reinforced composite hollow fiber membrane comprising a reinforcing material of a tubular braid and a polymer resinous thin film coated on the surface of the tubular braid according to the present invention is characterized in that: the tubular braid comprises multifilaments made of monofilaments having a crimp rate of 2 to 40%, and the peeling strength of the tubular braid and a polymer resinous thin film coated on the surface thereof is 1 to 10 MPa. In the composite hollow fiber membrane, the crimp rate of the monofilaments constituting the tubular braid of the reinforcing material is 2 to 40%, thus the surface area of the tubular braid contacted with the polymer resinous thin film is increased. Thus, the peeling strength of the tubular braid and the polymer resinous thin film coated on the surface thereof is excellent. | 11-27-2008 |
20080305290 | A Braid-Reinforced Composite Hollow Fiber Membrane - A braid-reinforced composite hollow fiber membrane is disclosed. The braid-reinforced composite hollow fiber membrane comprising a reinforcing material of a tubular braid and a polymer resinous thin film coated on the surface of the tubular braid is characterized in that: the tubular braid comprises multifilaments made of monofilaments having a fineness of 0.01 to 0.4 denier, and the peeling strength of the tubular braid and a polymer resinous thin film coated on the surface thereof is 1 to 10 MPa. In the composite hollow fiber membrane, the fineness of the mono filaments constituting the tubular braid of the reinforcing material is small, that is, 0.01 to 0.4 denier, thus the surface area of the tubular braid contacted with the polymer resinous thin film is increased. Thus, the peeling strength of the tubular braid and the polymer resinous thin film coated on the surface thereof is excellent, and at the same time, the initial wetting property of the composite hollow fiber membrane is excellent, that is, 80 to 120%, due to a capillary tube phenomenon or the like. | 12-11-2008 |
20090321344 | HEADER FOR FILTERING MEMBRANE MODULE AND FILTERING MEMBRANE MODULE USING THE SAME - A header for filtering membrane module and a filtering membrane module using the same is disclosed, which is capable of maximizing efficiency in power consumption by securing a constant flow of permeate through the use of a relatively-low negative pressure, the header for filtering membrane module comprising a body with a permeate collecting space therein; and a conduit at one end of the body, the conduit being in fluid communication with the permeate collecting space, wherein at least a portion of the permeate collecting space has an inclined shape. | 12-31-2009 |
20100024631 | TUBULAR BRAID AND COMPOSITE HOLLOW FIBER MEMBRANE USING THE SAME - A tubular braid and a composite hollow fiber membrane using the same are disclosed. The tubular braid is made by braiding yarns, the yarn made by combining thin filament and thick filament, wherein the thin filament is comprised of a plurality of monofilament having a fineness of 0.01 to 0.4 denier, and the thick filament is comprised of at least one monofilament having a fineness of 3 to 50 denier. Also, the composite hollow fiber membrane using the tubular braid of the present invention can realize excellent water permeability, high mechanical strength, good filtration reliability, great peeling strength, low dope permeation, and high stiffness. | 02-04-2010 |
20110049026 | HOLLOW FIBER MEMBRANE MODULE FOR WATER PURIFIER - A hollow fiber membrane module with good ventilativity is disclosed, which is capable of reducing a time period for completely filling a water space of housing with water introduced through a water inlet by quickly replacing the air in the water space with the water thereby improving the efficiency of water flow. | 03-03-2011 |
20120097601 | MODULE CASE AND HOLLOW FIBER MEMBRANE MODULE USING THE SAME - A hollow fiber membrane module is disclosed, which is capable of preventing a bundle of hollow fiber membranes from being separated from a module case, the hollow fiber membrane module for accommodating a bundle of hollow fiber membranes closely held together through the use of potting agent, including a module case including: a first inner surface serving as a projection on which the bundle of hollow fiber membranes is stably placed; a second inner surface upwardly extending from one end of the first inner surface, the second inner surface including at least one separation-preventing groove to prevent the bundle of hollow fiber membranes from being separated from the module case; a third inner surface downwardly extending from the other end of the first inner surface; and a fourth inner surface connected to the third inner surface. | 04-26-2012 |
20120231355 | POLYMER ELECTROLYTE MEMBRANE FOR A FUEL CELL, AND METHOD FOR PREPARING SAME - The present disclosure relates to a polymer electrolyte membrane having a construction wherein an ionomer is charged in pores of a nanoweb having a high melting point, being insoluble in an organic solvent and having excellent pore characteristics, under optimum conditions. Therefore, an overall thickness of the electrolyte membrane may be reduced, thereby attaining advantages such as decrease in ohmic loss, reduction of material costs, excellent heat resistance, low thickness expansion rate which in turn prevents proton conductivity from being deteriorated over a long term. The polymer electrolyte membrane of the present invention comprises a porous nanoweb having a melting point of 300□ or more and being insoluble in an organic solvent of NMP, DMF, DMA, or DMSO at room temperature; and an ionomer which is charged in pores of the porous nanoweb and contains a hydrocarbon material soluble in the organic solvent at room temperature. | 09-13-2012 |
20120270120 | HUMIDIFIER FOR FUEL CELL - Disclosed is a humidifier for fuel cell, which facilitates to maximize humidifying performance and reducing the maintenance cost through the uniform humidification among all the hollow fiber membranes by preventing high-humidity unreacted gas introduced to the inside of membrane housing from flowing concentratedly toward a specific region in the membrane housing, wherein the humidifier comprises a membrane housing; a partition plate for dividing an inner space of the membrane housing into plural unit spaces; plural hollow fiber membranes in each of the unit spaces; and a cover mounted on an end of the membrane housing, the cover including an inlet for introducing unreacted gas of high-humidity discharged from a stack into the membrane housing, wherein plural distribution holes are provided in the membrane housing, the distribution holes corresponding to the unit spaces respectively. | 10-25-2012 |
20120282533 | HUMIDIFIER FOR FUEL CELL - Disclosed is a humidifier for fuel cell which is capable of realizing high humidifying efficiency owing to the maximum contact area of hollow fiber membranes with reaction gas to be supplied to the fuel cell by enabling the uniform humidifying level in all the hollow fiber membranes provided inside the humidifier. The humidifier comprises a membrane housing including a first end, a second end positioned at an opposite side of the first end, and plural holes provided along the outer circumferential surface of the second end; hollow fiber membranes having both ends respectively potted into the first and second ends of the membrane housing, wherein the hollow fiber membranes are positioned inside the membrane housing; and a cap including an inlet for moisture-containing unreacted gas, wherein the cap is installed at the second end of the membrane housing, and an inner surface of the cap is provided with plural projections enabling to uniformly distribute the moisture-containing unreacted gas supplied through the inlet to the plural holes. | 11-08-2012 |
20130137005 | HUMIDIFIER FOR FUEL CELL - Disclosed is a humidifier for a fuel cell having an enhanced humidifying performance and thus being able to prevent an instantaneous decrease of the output of a car which might occur at the time of high-speed driving. The humidifier comprises a membrane housing with first and second ends; a bundle of hollow fiber membranes provided in an inner space of the membrane housing, wherein both ends of the hollow fiber membrane are respectively potted into the first and second ends of the membrane housing; a humidity retainer provided in the inner space of the membrane housing; a first cover mounted on the first end of the membrane housing, the first cover including an inlet for introducing unreacted gas of high-humidity discharged from a stack; and a second cover mounted on the second end of the membrane housing, the second cover including an outlet for discharging the unreacted gas used for humidification. | 05-30-2013 |
20130177834 | POLYMER ELECTROLYTE AND PREPARATION METHOD THEREOF - Provided are a polymer electrolyte membrane used in fuel cells, and a method for producing the same, the method including a step of filling a crosslinkable ion conductor in the pores of a porous nanoweb support; and a step of crosslinking the ion conductor filled in the pores of the porous nanoweb support. The method for producing a polymer electrolyte membrane uses a relatively smaller amount of an organic solvent, can ameliorate defects of the support caused by solvent evaporation, and can enhance the impregnability of the ion conductor to the support and the convenience of the process. | 07-11-2013 |
20130213886 | SYSTEM AND METHOD FOR FILTRATION - Disclosed are system and method for filtration which can minimize the contamination of the filtering membrane through a pretreatment and perform the pretreatment and the filtration with a filtering membrane in a single filtering unit so that any need for separate and additional space and facility for the pretreatment can be obviated. The system for filtration of the present invention comprises a fine bubble supplier for providing fine bubbles into the feed water. The pretreatment is performed by supplying the feed water to be treated into the filtering unit through a dynamic filtration layer which is formed in the filtering unit as the fine bubbles rise. | 08-22-2013 |
20140042074 | FILTRATION SYSTEM - Disclosed is an energy-saving and eco-friendly filtration system which is capable of minimizing the amount of the energy required for the filtration, thereby remarkably reducing the cost of water treatment. The filtration system of the present invention comprises: a feed water tank for storing a feed water to be treated; a hollow fiber membrane module for filtering the feed water supplied from the feed water tank; and a filtrate tank for storing a filtrate produced by the hollow fiber membrane module, wherein the hollow fiber membrane module comprises a plurality of hollow fiber membranes for filtering the feed water, and the sum of head pressure of the feed water in the feed water tank and water pressure of the filtrate in accordance with siphon principle is higher than the threshold membrane pressure of the hollow fiber membranes. | 02-13-2014 |
20140076793 | PRESSURIZED HOLLOW FIBER MEMBRANE MODULE - Disclosed is a pressurized hollow fiber membrane module that exhibits improved durability without deterioration in packing density and permeation flux. The pressurized hollow fiber membrane module includes a composite hollow fiber membrane comprising a tubular braid woven by yarns and a polymer film on the outer surface of the tubular braid. At least one of the yarns comprises a small-fineness filament and a medium-fineness filament. The small-fineness filament comprises first monofilaments having a fineness of 0.01 to 0.4 denier, the medium-fineness filament comprises second monofilaments having a fineness higher than 0.4 and lower than 3, and a ratio of thickness of the tubular braid to outer diameter thereof is 15 to 35%. | 03-20-2014 |
20140154594 | POLYMER ELECTROLYTE MEMBRANE FOR FUEL CELL AND METHOD FOR MANUFACTURING THE SAME - Disclosed are a polymer electrolyte membrane showing high ion conductivity even under the condition of low humidity and high temperature and a method for manufacturing the same. The polymer electrolyte membrane of the present invention comprises a porous substrate, a self proton conducting material dispersed in the porous substrate, and an ion conductor impregnated in the porous substrate. The self proton conducting material comprises an inorganic particle functionalized with an azole ring. | 06-05-2014 |
20150064602 | POLYMER ELECTROLYTE MEMBRANE, A METHOD FOR FABRICATING THE SAME, AND A MEMBRANE-ELECTRODE ASSEMBLY INCLUDING THE SAME - Disclosed are a polymer electrolyte membrane, a method for manufacturing the same and a membrane-electrode assembly comprising the same, the polymer electrolyte membrane includes a hydrocarbon-containing ion conductive layer; and a fluorine-containing ion conductor discontinuously dispersed on the hydrocarbon-containing ion conductive layer. | 03-05-2015 |
20150298067 | POROUS MEMBRANE AND METHOD FOR MANUFACTURING THE SAME - Disclosed are a porous membrane having improved water permeability and elongation at break as well as high mechanical strength and impurity rejection rate and a method for manufacturing the same. The porous membrane of the present invention comprises a symmetric bead structure comprising a plurality of spherical crystallites. Each of the plurality of spherical crystallites comprises a plurality of sub-spherical crystallites. | 10-22-2015 |
20150303505 | REINFORCED COMPOSITE MEMBRANE FOR FUEL CELL AND MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL COMPRISING THE SAME - Disclosed are a reinforced composite membrane for fuel cells including a porous support comprising three-dimensionally irregularly and discontinuously arranged nanofibers of a polymer and a first ionic conductor, and a second ionic conductor filling pores of the porous support, wherein the first ionic conductor is present as nanofibers in the porous support or is present in the nanofibers of the polymer to form the nanofibers together with the polymer, and a membrane-electrode assembly for fuel cells including the same. As a result, impregnation uniformity and impregnation rate of the ionic conductors are improved and proton (hydrogen ion) conductivity is thus enhanced. | 10-22-2015 |