Patent application number | Description | Published |
20080224596 | Inorganic electroluminescence device using quantum dots - An inorganic electroluminescence device including: a substrate; a first electrode formed on the substrate; an inorganic light emitting layer layer formed on the first electrode; a dielectric layer formed on the inorganic light emitting layer; a second electrode formed on the dielectric layer; and a quantun dot layer that is formed between the first electrode and the inorganic light emitting layer and emits light by being excited by visible light emitted from the inorganic light emitting layer. | 09-18-2008 |
20090023233 | METHOD OF MANUFACTURING DISPERSION TYPE AC INORGANIC ELECTROLUMINESCENT DEVICE AND DISPERSION TYPE AC INORGANIC ELECTROLUMINESCENT DEVICE MANUFACTURED THEREBY - Disclosed herein is a method of preparing a low resistance metal line, is a method of manufacturing a dispersion type AC inorganic electroluminescent device and a dispersion type AC inorganic electroluminescent device manufactured thereby, in which a light-emitting layer and a dielectric layer between a lower electrode and an upper electrode are simultaneously formed through a single process using spin coating, thereby simplifying the overall manufacturing process and decreasing the manufacturing cost, and furthermore, the contact interface between the light-emitting layer and the dielectric layer is increased, therefore increasing the brightness of the device. | 01-22-2009 |
20090110908 | METHOD OF MANUFACTURING DISPERSION TYPE INORGANIC ELECTROLUMINESCENCE DEVICE AND DISPERSION TYPE INORGANIC ELECTROLUMINESCENCE DEVICE - A method of manufacturing a dispersion type inorganic electroluminescence device and a dispersion type inorganic electroluminescence device including a light-emitting layer and a dielectric layer, which are integrated, are disclosed. The method is directed to the manufacture of a dispersion type inorganic electroluminescence device, in which phosphor particles are coated with a metal oxide precursor using ultrasonic waves, after which the phosphor particles coated with the metal oxide precursor are disposed between a transparent electrode and an upper electrode, forming a light-emitting layer and a dielectric layer, which are integrated. The dispersion type inorganic electroluminescence device includes a plurality of phosphor particles coated with a metal oxide precursor, disposed between a transparent electrode and an upper electrode, thereby providing a light-emitting layer and a dielectric layer, which are integrated. | 04-30-2009 |
20100060709 | LINE LIGHT SOURCE, LINE PRINTER HEAD, AND IMAGE FORMING APPARATUS INCLUDING THE LINE PRINTER HEAD - Disclosed are a line light source, a line printer head, and an image forming apparatus. The line light source includes a light waveguide unit which guides light emitted from a light emitting layer which is disposed between a bottom electrode and top electrodes, wherein the light waveguide unit is disposed on the top electrodes. Light is emitted through the surface area of light emitting areas defined by overlapping areas of the bottom electrode and the top electrodes. The light waveguide includes a plurality of openings, the sizes of which may be different than the surface area of the light emitting areas. The light emitting amount can be adjusted by adjusting the light emitting surface areas without reducing printing resolution of the image forming apparatus by employing the disclosed line light source as the line printer head. | 03-11-2010 |
20100072890 | INORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY APPARATUS EMPLOYING THE SAME - An inorganic electroluminescent device includes; a conductive layer, a fluorescent material layer disposed on a surface of the conductive layer, a dielectric material layer disposed on a surface of the conductive layer substantially opposite to the surface on which the fluorescent material layer is disposed, a first electrode disposed on the fluorescent layer, and a second electrode disposed on the dielectric material layer. | 03-25-2010 |
20100109520 | INORGANIC ELECTROLUMINESCENT DEVICE AND METHOD OF MANUFACTURING THE SAME - An inorganic electroluminescence (“EL”) device includes a lower electrode; a dielectric layer disposed on the lower electrode; an inorganic emission layer disposed on the dielectric layer; an upper electrode disposed on the inorganic emission layer; a waveguide layer disposed on the upper electrode; and a reflection film partially coating the waveguide layer and including an emission portion through which light is emitted. | 05-06-2010 |
20100141731 | LINE PRINTER HEAD AND IMAGE FORMING APPARATUS INCLUDING THE SAME - Disclosed is a line printer head that exposes an object, e.g., a photoconductor body, of an image forming apparatus. The line printer head includes multiple light emitting devices in a linear arrangement along a main scanning direction. Each light emitting device includes a light emitting region, a first electrode on a lower portion of the light emitting region, a second electrode on an upper portion of the light emitting region and an optical waveguide disposed above the second electrode and configured to guide light generated by the light emitted region such that the light is output through an opening of the optical waveguide. The integrated circuit is configured to drive the light emitting devices and has multiple output terminals, each of which is connected to the first electrode of the respective corresponding one of the light emitting devices. The light emitting devices and the integrated circuit are formed on the same substrate. | 06-10-2010 |
20100176714 | FLUORESCENT PARTICLE AND INORGANIC ELECTROLUMINESCENCE DEVICE INCLUDING THE SAME - An inorganic electroluminescence device includes a first electrode, a dielectric layer disposed on the first electrode, an inorganic light emitting layer disposed on the dielectric layer, and a second electrode disposed on the inorganic light emitting layer. The inorganic light emitting layer includes a fluorescent particle. The fluorescent particle includes a ZnS mother body and a nano-wire disposed on a surface of the ZnS mother body. | 07-15-2010 |
20100187989 | INORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY DEVICE INCLUDING SAME - An inorganic electroluminescent device includes a first electrode, a nano-coil layer disposed on the first electrode, a dielectric layer disposed on the nano-coil layer, a fluorescent layer disposed on the dielectric layer and a second electrode disposed on the fluorescent layer. | 07-29-2010 |
20100213823 | INORGANIC ELECTROLUMINESCENT DEVICE - An inorganic electroluminescent device includes; a lower electrode, a dielectric layer which is disposed on the lower electrode and includes a low dielectric material layer and a high dielectric material layer, an inorganic light emitting layer disposed on the dielectric layer, and an upper electrode disposed on the inorganic light emitting layer, wherein the low dielectric material layer has a greater dielectric constant than the high dielectric material layer. | 08-26-2010 |
20100244663 | INORGANIC ELECTROLUMINESCENCE DEVICE, DISPLAY APPARATUS HAVING THE SAME AND METHOD THEREOF - An inorganic electroluminescence device including a first electrode and a second electrode disposed apart from each other, and a dielectric material layer disposed between the first and second electrodes. The dielectric material layer has a micro-tubular shape, and a light emitting layer is filled in the dielectric material layer. | 09-30-2010 |
20100255402 | Carbon nanotubes, supported catalyst including the same, and fuel cell using the supported catalyst - A carbon nanotube, a method of preparing the same, a supported catalyst including the same, and a fuel cell using the supported catalyst are provided. The method of preparing the carbon nanotube includes: depositing a metal catalyst in single wall nanotubes and growing multi wall nanotubes over the single wall nanotubes using the metal catalyst. The carbon nanotubes of the present invention have satisfactory specific surface area and low surface resistance. Thus, the carbon nanotubes perform remarkably better than a conventional catalyst carrier. Accordingly, the carbon nanotubes, when used as a catalyst carrier of an electrode for a fuel cell, can improve the electrical conductivity of the fuel cell. In addition, a fuel cell employing the electrode has excellent efficiency and overall performance. | 10-07-2010 |
20100270918 | INORGANIC ELECTROLUMINESCENCE DEVICE - An inorganic field emission device includes a first electrode, a second electrode spaced apart from the first electrode, and a light emitting layer disposed therebetween. A dielectric layer is disposed between the first electrode and the light emitting layer and/or between the second electrode and the light emitting layer. A field reinforcing layer is disposed between a dielectric layer and the light emitting layer and includes carbon nanotubes having a length of about 20 nanometers to about 1 micrometer. | 10-28-2010 |
20110073808 | PHOSPHOR, WHITE LIGHT EMITTING DEVICE INCLUDING THE PHOSPHOR AND METHOD OF PREPARING THE PHOSPHOR - A phosphor represented by Formula 1: | 03-31-2011 |
20110096527 | NANOPHOSPHOR, LIGHT EMITTING DEVICE INCLUDING NANOPHOSPHOR, AND METHOD OF PREPARING NANOPHOSPHOR - A nanophosphor including ZnS, having an average particle diameter of about 10 to about 500 nanometers, and having a ZnS cubic (111) peak in an X-ray diffraction spectrum, wherein the ZnS cubic (111) peak has a full width at half maximum (“FWHM”) of about 0.280 degrees or less. | 04-28-2011 |
20110204814 | INORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD OF MANUFACTURING THE SAME - An inorganic electroluminescence device includes a substrate, a first electrode layer including a plurality of segment electrodes disposed on the substrate and separated from each other, a phosphor layer on the first electrode layer, a dielectric layer on the phosphor layer, and a second electrode layer on the dielectric layer. A voltage is applied to each of the plurality of segment electrodes so that the inorganic electroluminescence device can be turned on or turned off. | 08-25-2011 |
20110251319 | DIELECTRIC PASTE COMPOSITION, METHOD OF FORMING DIELECTRIC LAYER, DIELECTRIC LAYER, AND DEVICE INCLUDING THE DIELECTRIC LAYER - A dielectric paste composition including: a plurality of inorganic dielectric particles, a binder, a solvent, and a halogenated hydrocarbon. Also disclosed is a method of forming a dielectric layer, a dielectric layer, and a device including the dielectric layer. | 10-13-2011 |
20120167799 | DIELECTRIC PASTE COMPOSITION, METHOD OF FORMING TRANSPARENT DIELECTRIC LAYER, TRANSPARENT DIELECTRIC LAYER, AND DEVICE INCLUDING THE TRANSPARENT DIELECTRIC LAYER - A dielectric paste composition for manufacturing a transparent dielectric layer, the dielectric paste composition including a cyanoresin, and a carbonate solvent. Also a method of forming a transparent dielectric layer, and a device including the transparent dielectric layer. | 07-05-2012 |
20120169214 | NANO-SIZED PHOSPHOR, EMITTING LAYER INCLUDING THE SAME, INORGANIC LIGHT EMITTING DEVICE INCLUDING EMITTING LAYER, METHOD OF PREPARING NANO-SIZED PHOSPHOR, AND METHOD OF PREPARING EMITTING LAYER - A nano-sized phosphor including: sulfur, wherein the nano-sized phosphor has a mean largest particle diameter of less than 1 micrometer. | 07-05-2012 |
20120172194 | DIELECTRIC CERAMIC AND METHOD OF MANUFACTURING THE SAME - A method for manufacturing a dielectric ceramic, the method including: combining a ferroelectric compound having a perovskite structure and a halide to provide a mixture; heat treating the mixture; and removing the halide from the heat treated mixture to manufacture the dielectric ceramic. | 07-05-2012 |
20130101835 | CARBON NANOTUBE PASTE COMPOSITION, EMITTER PREPARED USING THE COMPOSITION, AND ELECTRON EMISSION DEVICE INCLUDING THE EMITTER - A carbon nanotube paste composition including carbon nanotubes, an organopolysiloxane including an alkenyl group, an organohydrogensiloxane including a hydrosilyl group, and a first catalyst effective to catalyze an addition reaction between the alkenyl group and the hydrosilyl group. | 04-25-2013 |
20130230146 | ELECTRON EMISSION DEVICE AND X-RAY GENERATOR INCLUDING THE SAME - An electron emission device includes a cathode electrode; a mesh-shaped gate electrode spaced apart from the cathode electrode; a plurality of gate spacers between the cathode electrode and the gate electrode; and a plurality of electron emission sources between the cathode electrode and the gate electrode, and alternating with the plurality of gate spacers. | 09-05-2013 |
20130235976 | X-RAY SOURCE DEVICE - An X-ray source device includes a substrate, a cathode electrode on the substrate, an emitter on the cathode electrode, an insulation body around the cathode electrode, a gate electrode on the insulation body, a first secondary electron emission layer at a side wall of the gate electrode and emitting secondary electrons upon collision with an electron beam emitted by the emitter, and an anode electrode separated from the gate electrode. | 09-12-2013 |
20140023178 | X-RAY PHOTOGRAPHING APPARATUS AND METHOD - An X-ray photographing apparatus includes: a plurality of X-ray generators which is two-dimensionally arranged and independently generates X-rays; and a plurality of X-ray detectors which is arranged in a one-to-one correspondence with the plurality of X-ray generators and independently detects the X-rays generated by the plurality of X-ray generators. | 01-23-2014 |
20140241498 | X-RAY IMAGING SYSTEM INCLUDING FLAT PANEL TYPE X-RAY GENERATOR, X-RAY GENERATOR, AND ELECTRON EMISSION DEVICE - An X-ray imaging system includes an X-ray generator including a plurality of X-ray generation units, where the plurality of X-ray generation units is two-dimensionally arranged, and operates independently of each other; and an X-ray detector spaced apart from the X-ray generator, where the X-ray detector includes a plurality of X-ray detection units corresponding to the plurality of X-ray generation units, where a space is defined between the X-ray generator and the X-ray detector. | 08-28-2014 |
20140270087 | X-RAY GENERATOR INCLUDING HEAT SINK BLOCK - An x-ray generator includes a housing, a cathode block that is arranged in the housing and emits electrons via a field emission scheme, an anode block that is arranged in the housing and generates x-rays in response to the electrons emitted from the cathode block and collide with the anode block, and a heat sink block that contacts the cathode block and dissipates heat generated therein to an outside of the housing. | 09-18-2014 |
20150060757 | FIELD EMISSION DEVICES AND METHODS OF MANUFACTURING GATE ELECTRODES THEREOF - A field emission device may comprise: an emitter comprising a cathode electrode and an electron emission source supported by the cathode electrode; an insulating spacer around the emitter, the insulating spacer forming an opening that is a path of electrons emitted from the electron emission source; and/or a gate electrode comprising a graphene sheet covering the opening. A method of manufacturing a gate electrode may comprise: forming a graphene thin film on one surface of a conductive film; forming a mask layer having an etching opening on another surface of the conductive film, wherein the etching opening exposes a portion of the conductive film; partially removing the conductive film through the etching opening to partially expose the graphene thin film; and/or removing the mask layer. | 03-05-2015 |
20150063540 | FLAT PANEL TYPE X-RAY GENERATORS AND X-RAY IMAGING SYSTEMS INCLUDING THE SAME - An X-ray generator may comprise: an electron emission device comprising a plurality of electron emission units configured to emit electrons; an X-ray emission device configured to emit X-rays due to the electrons emitted from the electron emission device; and/or a parallel light extraction member configured to extract X-rays having directivity from among the X-rays emitted from the X-ray emission device and to allow the extracted X-rays having directivity to pass through the parallel light extraction member. | 03-05-2015 |
20150071413 | METHOD OF AGING X-RAY GENERATOR HAVING CARBON NANOTUBE ELECTRON EMITTER - Provided are methods of aging an x-ray generator having carbon nanotube electron emitters. The method of aging an x-ray generator that includes a cathode, a gate electrode, and an anode, includes applying a desired, or alternatively predetermined anode voltage to the anode, and applying a direct current pulse voltage to the gate electrodes to emit electrons from electron emitters. The method further includes maintaining an anode current formed by electrons generated from the electron emitters constant. | 03-12-2015 |