Patent application number | Description | Published |
20130330505 | Light Extraction Substrate For OLED And Method Of Fabricating The Same - A light extraction substrate for an organic light-emitting device (OLED) which can improve the brightness of a display or an illumination system to which an OLED is applied by improving light extraction efficiency and a method of manufacturing the same. The light extraction substrate for an OLED includes an oxide or nitride thin film formed on a substrate body. The oxide or nitride thin film includes a base layer formed on the substrate body, a first texture formed on the base layer, the first texture having a plurality of first protrusions which protrude continuously or discontinuously from the base layer, and a second texture having a plurality of second protrusions which protrude continuously or discontinuously from each outer surface of the first protrusions. | 12-12-2013 |
20140042476 | Metal Oxide Thin Film Substrate, Method Of Fabricating The Same, Photovoltaic Cell And OLED Including The Same - A metal oxide thin film substrate which can increase light trapping efficiency and light extraction efficiency, a method of fabricating the same and a photovoltaic cell and organic light-emitting device (OLED) including the same. The metal oxide thin film substrate includes a base substrate, and a metal oxide thin film formed on the base substrate. The metal oxide thin film has voids which are formed inside the metal oxide thin film to scatter light. | 02-13-2014 |
20140103336 | METAL OXIDE THIN FILM SUBSTRATE FOR OLED AND METHOD OF FABRICATING THE SAME - A metal oxide thin film substrate for an organic light-emitting device (OLED) which exhibits superior light extraction efficiency and can be easily fabricated at low cost and a method of fabricating the same and a method of fabricating the same. The metal oxide thin film substrate for an OLED includes a base substrate and a metal oxide thin film formed on the base substrate, the metal oxide thin film being made of a mixture of at least two metal oxides having different refractive indices. | 04-17-2014 |
Patent application number | Description | Published |
20090005237 | Method for preparing the mixed electrode catalyst materials for a PEM fuel cell - The present invention relates to a process for preparing electrode catalyst materials for a polymer electrolyte membrane fuel cell (PEMFC), and particularly to a high-performance platinum-non-platinum mixed electrode catalyst (Pt—RuOs/C) having a physically mixed structure of RuOs alloy and platinum materials, which is prepared by adding a small amount of platinum (Pt) to RuOs alloy materials highly dispersed on a carbon support, where the amount of platinum used is drastically reduced as compared to the conventional platinum materials, thus lowering the manufacturing cost. | 01-01-2009 |
20090155635 | METHOD OF ACTIVATING MEMBRANE ELECTRODE ASSEMBLY (PEM) OF POLYMER ELECTROLYTE MEMBRANE FUEL CELL (PEMFC) USING CYCLIC VOLTAMMETRY (CV) - The present invention relates to a method of activating membrane electrode assemblies of polymer electrolyte membrane fuel cells of a fuel cell stack for a vehicle comprising: supplying a humidified gas to a fuel cell so as to hydrate an electrolyte membrane and an electrolyte of electrodes of the fuel cell; and performing a cyclic voltammetry process so as to activate the layers of the electrodes. | 06-18-2009 |
20120028790 | NON-PLATINUM OXYGEN REDUCTION CATALYSTS FOR POLYMER ELECTROLYTE MEMBRANE FUEL CELL AND METHOD FOR PREPARING THE SAME - Provided are a non-platinum oxygen reduction catalyst for a polymer electrolyte membrane fuel cell and a method for preparing the same. More particularly, an oxygen reduction catalyst in which chelated cobalt is impregnated on a conductive polymer coated on a carbon support and a method for preparing the oxygen reduction catalyst by coating a conductive polymer on a carbon support, impregnating chelated cobalt on the conductive polymer and then treating the same with heat and an acid are disclosed. The platinum-free oxygen reduction catalyst of the present invention has superior oxygen reduction activity and durability with high proportion of pyridinic and graphitic nitrogens on the catalyst surface, and thus can be usefully applied for a polymer electrolyte membrane fuel cell. | 02-02-2012 |
20140055123 | MOTOR POWER SIMULATING APPARATUS FOR FUEL CELL POWER MODULE EVALUATION - Disclosed is a motor power simulating apparatus for fuel cell power module evaluation that accurately reflects real world characteristics of a fuel cell vehicle. More particularly, the power simulating apparatus disclosed herein includes a fuel cell power module, a ripple current generator, and an electronic load device, the ripple current generator connected to the fuel cell power module and the electronic load device to accurately simulate power output from a fuel cell of a fuel cell vehicle under real world conditions. | 02-27-2014 |