Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


With particular phosphor or electrode material

Subclass of:

313 - Electric lamp and discharge devices

313483000 - WITH LUMINESCENT SOLID OR LIQUID MATERIAL

313498000 - Solid-state type

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
313504000 Organic phosphor 1673
Entries
DocumentTitleDate
20100013376Mixed semiconductor nanocrystal compositions - Composition comprising one or more energy donors and one or more energy acceptors, wherein energy is transferred from the energy donor to the energy acceptor and wherein: the energy acceptor is a colloidal nanocrystal having a lower band gap energy than the energy donor; the energy donor and the energy acceptor are separated by a distance of 40 nm or less; wherein the average peak absorption energy of the acceptor is at least 20 meV greater than the average peak emission energy of the energy donor; and wherein the ratio of the number of energy donors to the number of energy acceptors is from about 2:1 to about 1000:1.01-21-2010
20130069522WAY OF REDUCING LED'S COLOR TEMPERATURE AND COLOR COORDINATES DRIFTING - The present invention relates to a way of reducing LED's color temperature and color coordinates drifting, more particularly to a phosphor-converted LED with blue ray light emitting body so that the influence of LED's heat dissipation on color performance can be minimized.03-21-2013
20130026908PHOSPHOR AND MANUFACTURING METHOD THEREFORE, AND LIGHT EMISSION DEVICE USING THE PHOSPHOR - Provided is the phosphor expressed by a general composition formula MmAaBbOoNn:Z (where element M is one or more kinds of elements having bivalent valency, element A is one or more kinds of elements having tervalent valency, element B is one or more kinds of elements having tetravalent valency, O is oxygen, N is nitrogen, and element Z is one or more kinds of activators.), satisfying 4.0<(a+b)/m<7.0, a/m≧0.5, b/a>2.5, n>o, n=2/3m+a+4/3b−2/3o, and having an emission spectrum with a peak wavelength of 500 nm to 650 nm when excited by light in a wavelength range from 300 nm to 500 nm.01-31-2013
20100117517WHITE-LIGHT LED HAVING IMPROVED ANGULAR COLOR PERFORMANCE - A light-emitting diode device, includes a substrate; and a light-emitting element having two or more commonly-controlled portions, the light-emitting element having two electrodes and a common unpatterned white-light-emitting layer formed between the two electrodes, at least one portion having an optical spacer, each portion having a different optical structure, the optical structure in one portion being tuned to emit substantially white light and that one portion having a transparent electrode, and the optical structure in a different portion being tuned to emit colored light.05-13-2010
20090195143Phosphor composition and display device including the same - The phosphor composition including a first phosphor represented by Formula 1:08-06-2009
20100164365PHOSPHOR, METHOD FOR PRODUCING SAME, PHOSPHOR-CONTAINING COMPOSITION, LIGHT-EMITTING DEVICE, IMAGE DISPLAY, AND ILLUMINATING DEVICE - To provide a phosphor emitting green fluorescence and having such superior characteristics as excellent conversion efficiency of blue light or near-ultraviolet light and excellent color purity, 07-01-2010
20100164367FLUORESCENT SUBSTANCE, METHOD FOR PRODUCING THE SAME, AND LIGHT-EMITTING DEVICE USING THE SAME - The present invention provides a fluorescent substance exhibiting higher brightness as compared to conventional fluorescent substances, a method for producing the same, and a light-emitting device using such a fluorescent substance. Specifically, the fluorescent substance comprises an α-sialon crystal structure having the same crystal structure with an α-type silicon nitride crystal, which includes at least an M(0) element (where M(0) represents one or two elements selected from Sr and La), an M(1) element (where M(1) represents one or more elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb), Si, Al, and nitrogen.07-01-2010
20090167151Lighting device having illumination, backlighting and display applications - Provided are a lighting device, a backlighting device, and a display device that comprise a radiation source such as LED and wavelength converting members comprising phosphors. In one embodiment, self-absorption within the devices is suppressed or reduced by placing a selective reflector between two wavelength converting members, and the wavelength converting member emitting light with longer peak wavelength is substantially isolated from the irradiation of another wavelength converting member emitting light with shorter peak wavelength. In other embodiments, the wavelength converting members are arranged in strip configuration; or in adjacent hexagons configuration.07-02-2009
20130076234LIGHT EMITTING MODULE AND PHOSPHOR - A light emitting module includes a light emitting device that emits ultraviolet rays or short-wavelength visible light, a blue phosphor that is excited by the ultraviolet rays or the short-wavelength visible light to emit visible light. The blue phosphor is represented by a general formula of (Ca03-28-2013
20090206729PHOSPHOR MATERIAL, COATING PHOSPHOR COMPOSITION, METHOD OF PREPARING PHOSPHOR MATERIAL AND LIGHT EMITTING DEVICE - Disclosed are phosphor, coating phosphor composition, a method for preparing the phosphor, and a light emitting device. A silicate-based phosphor is expressed in a chemical formula of (4-x-y-z)SrO.xBaO.zCaO.aMgO.2(SiO08-20-2009
20100033079Shatterproof light tube having after-glow - A lamp or light tube that is both shatterproof and produces an after-glow effect. The light tube is comprised of a cylinder sealed by glass and metal end caps on each end of the glass-sealed cylinder, and electrical conducting pins extend from at least one of the metal end caps to connect the light tube to a power source. The glass-sealed cylinder is coated on its exterior with a shatterproof coating composition that emits an after-glow effect. The coating composition is comprised of a strontium aluminate after-glow phosphor, an ethylene acid copolymer resin, and an ultraviolet additive.02-11-2010
20130043783LIGHT EMITTING DEVICE - A light emitting device of the present invention includes at least: at least more than one blue light chip, at least more than one red light chip and a fluorescent layer overlaid and bonded to the blue light light chip and the red light chip. The fluorescent layer is formed from a uniform mixture of a yellow phosphor and a red phosphor with the addition of a transparent plastic material. At least one portion of the absorbed light source is used to emit a light source with a wave length dissimilar to the wave length of the absorbed light or of the same wave length, thereby achieving the effectiveness to increase the illuminance and color rendering of white light.02-21-2013
20090039763ELECTROLUMINESCENT DEVICE - An electroluminescent device includes a first electrode layer, a phosphor layer on the first electrode layer, a layer with permanent accumulated charges on the phosphor layer, and a second electrode layer on the layer with permanent accumulated charges. By the addition of the layer with permanent accumulated charges, an external driving voltage applied to the luminescent device can be reduced.02-12-2009
20100045168WHITE LIGHT LIGHT-EMITTING DIODES - A white light light-emitting diode is provided. The white light light-emitting diode includes a substrate including an anode and a cathode or a circuit, an ultraviolet light-emitting diode emitting ultraviolet with a peak wavelength between 320-400 nm disposed on the substrate, and a phosphor layer formed by blending blue, yellow and red phosphor grains with transparent resin pervious to ultraviolet and visible light applied on the ultraviolet light-emitting diode, wherein the yellow phosphor grains are excited by blue light with an emission band between about 400-530 nm.02-25-2010
20100102707RED FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME - The present invention provides a red fluorescent substance and a light-emitting device utilizing the substance. This device less suffers from color drift even when working with high power. The light-emitting device comprises a blue LED, a green fluorescent substance of Sr04-29-2010
20090058262Alkaline fluoride dope molecular films and applications for p-n junction and field-effect transistor - The present invention provides a molecular film by alkaline fluoride n-doping into an electron transport host. The present invention also provides a molecular film where the transport molecule can either be tris (8-hydroxyquinolinato) (Alq3) or fullerene. The present invention further provides a p-n junction and a field-effect transistor of the same materials. Furthermore, the present invention provides a molecular film by fullerene p-doping into a hole transport molecular host. The present invention further provides a P-I-N light-emitting device which includes a substrate and a first electrically conductive layer defining an anode electrode layer on the substrate. The device includes the p-doped molecular film as hole injection layer deposited on the anode, the n-doped electron transport film as electron injection layer, and a second electrically conductive layer defining a cathode electrode layer on the electron injection layer. The device includes a layer of light-emissive material between the p-doped layer and the n-doped layer.03-05-2009
20130088143CERAMIC COMPOSITE FOR LIGHT CONVERSION, PROCESS FOR PRODUCTION THEREOF, AND LIGHT-EMITTING DEVICES PROVIDED WITH SAME - Provided are a ceramic composite for light conversion, which is capable of maintaining a high radiant flux even when the proportion of Gd and Ce is increased to tune the fluorescence peak wavelength to the longer wavelength side, a process for producing the ceramic composite, and a light emitting device including the ceramic composite. The ceramic composite for light conversion is a solidification product including a composition that is represented by a specific formula, and has a texture of continuously and three-dimensionally mutually entangled oxide phases including at least two phases of a first phase and a second phase, characterized in that the first phase is a Y04-11-2013
20130049574LIGHT EMITTING DEVICE - A light emitting device is disclosed. The light emitting device may include a light emitting diode (LED) for emitting light and phosphor adjacent to the LED. The phosphor may be excitable by light emitted by the LED and may include a first compound having a host lattice comprising first ions and oxygen. In one embodiment, the host lattice may include silicon, the copper ions may be divalent copper ions and first compound may have an Olivin crystal structure, a β-K2SO4 crystal structure, a trigonal Glaserite (K02-28-2013
20130049573OPTICAL FILM AND LIGHT EMITTING DEVICE - An optical film and a light emitting device are provided. The optical film includes a substrate, a resin layer, and a plurality of porous particles. The resin layer is located on the substrate. The porous particles are distributed in the resin layer, and each of the porous particles includes a particle body and a plurality of holes. A refractive index of the particle body is different from a refractive index of the resin layer, and the refractive index of the particle body is different from a refractive index of air in the holes. The light emitting device includes a light emitting element and an optical film. The light emitting element has a light emitting surface, and the optical film is located on the light emitting surface of the light emitting element.02-28-2013
20100001631Phosphor, manufacturing method of phosphor sheet and phosphor, and light emitting device using the phosphor - To provide a phosphor given by a general composition formula expressed by MmAaBbOoNn:Z, (wherein element M is one or more kinds of elements having bivalent valency, element A is one or more kinds of elements having tervalent valency, element B is one or more kinds of elements having tetravalent valency, O is oxygen, N is nitrogen, and element Z is one or more kind of activating agent, satisfying m>0, a>0, b>0, o≧0, and n>0), with a change rate of a ratio of element B atoms to the total numbers of atoms being smaller by 10% or the change rate of oxygen atoms to the total numbers of atoms being smaller by 40% in a range from a particle surface up to depth 2000 nm, having a broad emission spectrum in a range of blue color, having a broad flat excitation band in a range of near ultraviolet/ultraviolet, and having excellent emission efficiency, emission intensity, and luminance.01-07-2010
20080303411LIGHT EMITTING APPARATUS, METHOD FOR MANUFACTURING THE LIGHT EMITTING APPARATUS, ELECTRONIC DEVICE AND CELL PHONE DEVICE - A light emitting apparatus is provided, and the light emitting apparatus has a light emitting device mounted on a substrate or a resin package where a substrate surface or the resin package is resin-encapsulated by an encapsulating resin section added with a phosphor in such a manner to cover the light emitting device. A surface resin layer of a different color from that of the encapsulating resin section is provided on a surface side of the encapsulating resin section.12-11-2008
20090322209Luminescent Substance of the Class of Nitride Silicates and Light Source Having such a Luminescent Substance - A phosphor from the class of nitridosilicates from the M-Al—Si—N system, comprising a cation M, wherein M is represented by Ca alone or is represented by a mixture of Ca with at least one further element from the group Ba, Sr, Mg, Zn, Cd, Li, Na, Cu, wherein the phosphor is activated with at least one element from the group Eu, Ce which partly replaces M, characterized in that the phosphor forms a phase that is to be assigned to the system M3N2-AlN-Si3N4, wherein the atomic ratio of the constituents M:Al ≧0.375 and the atomic ratio Si/Al ≧1.4.12-31-2009
20120217866LUMINOPHORE COMPOSITION FOR LOW PRESSURE DISCHARGE LAMPS - In various embodiments, a luminophore composition for low pressure discharge lamps for generating radiation with a color temperature of greater than 4800 K having a very good general color rendering index of greater than 90, the luminophore composition including at least one halophosphate luminophore, a luminophore emitting in the red wavelength region, a luminophore emitting in the blue-green wavelength region, a europium-doped luminophore emitting in the blue wavelength region and a Tb-doped luminophore emitting in the green wavelength region, wherein the luminophore composition includes a luminophore emitting in an emission range in the visible region with wavelengths of greater than 380 nm and at least one emission band in the near ultraviolet and that the emitted intensity of the luminophore is smaller in the visible region than in the near ultraviolet region.08-30-2012
20090091239LIGHT-EMITTING CHIP AND METHOD OF MANUFACTURING THE SAME - A light-emitting chip includes a light-emitting part, a first color-converting part and a second color-converting part. The light-emitting part includes a first electrode and a second electrode, and generates first light of a first wavelength. The first color-converting part is formed on a light-emitting surface of the light-emitting part. The first color-converting part converts at least a portion of the first light into second light of a second wavelength. The second color-converting part is formed on the first color-converting part. The second color-converting part converts at least a portion of the first light into third light of a third wavelength that is shorter than the second wavelength. Thus, a fluorescent substance of a long wavelength and a fluorescent substance of a short wavelength are sequentially formed on a light-emitting surface of a light-emitting part, so that the color reproducibility of a light-emitting chip may be enhanced.04-09-2009
20090267488Wavelength converting material and use of same - This invention discloses a wavelength converting material. The wavelength converting material comprises a metal haloaluminate compound phosphor with a chemical formula M10-29-2009
20090267486ORGANIC LIGHT EMITTING DISPLAY DEVICE - An organic light emitting display device according to one or more embodiments is provided. An organic light emitting display device according to an exemplary embodiment of the present invention includes a reinforcement member disposed on a substrate and having a refractive index of greater than about 2.1, a transflective electrode disposed on the reinforcement member and contacting the reinforcement member, a pixel electrode disposed on the transflective electrode and contacting the transflective electrode, an organic light emitting member disposed on the pixel electrode, and a common electrode disposed on the organic light emitting member.10-29-2009
20090267485Phosphor and Manufacturing Method Therefore, and Light Emission Device Using the Phosphor - To provide a phosphor for manufacturing an one chip type LED illumination, etc, by combining a near ultraviolet/ultraviolet LED and a blue LED, and having an excellent emission efficiency including luminance. The phosphor is given as a general composition formula expressed by MmAaBbOoNn:Z, (where element M is one or more kinds of elements having bivalent valency, element A is one or more kinds of elements having tervalent valency, element B is one or more kinds of elements having tetravalent valency, O is oxygen, N is nitrogen, and element Z is one or more kinds of elements acting as an activator.), satisfying a=(1+x)×m, b=(4−x)×m, o=x×m, n=(7−x)×m, 0≦x≦1, wherein when excited by light in a wavelength range from 300 nm to 500 nm, the phosphor has an emission spectrum with a peak wavelength in a range from 500 nm to 620 nm.10-29-2009
20130063021PHOSPHORS AND VISIBLE AND UV LIGHT EMITTING DEVICES UTILIZING THE SAME - Disclosed is a phosphor having a formula of M(M′03-14-2013
20080211388LIGHT EMITTING SEMICONDUCTOR DEVICE - A light emitting semiconductor device includes: a package; a light emitting device; a reflection member; and a light transmissive fluorescent material layer. The package has a bowl-like recess, and the light emitting device is placed at the center of the recess. The reflection member is provided on an inclined surface of the package surrounding the light emitting device and has a fluorescent material layer. The light transmissive fluorescent material layer is provided to face the light emitting device inside the inclined surface.09-04-2008
20090236970BORATE PHOSPHOR AND WHITE LIGHT ILLUMINATION DEVICE UTILIZING THE SAME - The invention provides borate phosphors composed of Ca09-24-2009
20090236969FLUORESCENT SUBSTANCE, PROCESS FOR PRODUCING THE SAME, AND LUMINESCENT DEVICE - This invention provides a blue phosphor, which has higher blue brightness and larger half-value width in an emission spectrum as compared with the conventional rare earth-activated sialon phosphor and has better durability as compared with the conventional oxide phosphor. The phosphor comprises a metal element M, wherein M represents Ce, dissolved as a solid solute in a nitride or oxynitride crystal having a β-type Si09-24-2009
20090009059Metallic compound hybridized nanophosphor layer, applications thereof, and method of preparing a metallic compound hybridized nanophosphor layer - A metallic compound hybridized nanophosphor layer, in which the metallic compound is metallic oxide or metallic sulfide. The metallic compound hybridized nanophosphor layer is prepared in consideration of physical, mechanical, and chemical stabilities. The metallic compound hybridized nanophosphor layer has an excellent light scattering effect and high durability against damage from ion-bombardment. In addition, the charging effect caused by V-UV vacuum-ultraviolet ray can be considerably reduced. Thus, the metallic compound hybridized nanophosphor layer is very suitable for various display devices having high efficiency and high resolution. Accordingly, a display device using the metallic compound hybridized nanophosphor layer shows high performance and long lifetime. The method of forming the metallic compound hybridized nanophosphor layer is a low temperature layer forming process through which a thin film-type layer can be formed at low temperature. Therefore, a phosphor layer having physical, mechanical, and chemical stabilities can be formed at low cost.01-08-2009
20090009057QUANTUM DOT OPTICAL DEVICE - Disclosed herein is a quantum dot optical device, including: a substrate; a hole injection electrode; a hole transport layer; a quantum dot luminescent layer; an electron transport layer; and an electron injection electrode, wherein a light-emitting surface of the device has a periodical projection structure.01-08-2009
20090015138LIGHT EMITTING DEVICE - A light emitting device is provided. The light emitting device includes a light emitting element that emits ultraviolet light or short-wavelength visible light; and at least one phosphor that is excited by the ultraviolet light or short-wavelength visible light to emit visible light. The at least one phosphor includes a first phosphor including a composition represented by the formula: M01-15-2009
20090153027Warm-white semiconductor and its phosphor with red-spectrum garent structure - The present invention discloses a warm-white semiconductor and its phosphor with red-spectrum garnet structure, comprising at least a semiconductor heterojunction and a light conversion film. The semiconductor heterojunction and light conversion film are characterized by that the warm-white luminescence is made up of three spectral bands which are related to the radiation of the activators, Ce, Pr, and Dy, in the inorganic phosphor of the light conversion film. The stoichiometric formula of the phosphor is (Y06-18-2009
20080290786Light Emitting Device, and Lighting System, Image Display Using the Same - To enhance luminance and color rendering of a light emitting device comprising phosphors as wavelength converting material and at least one semiconductor light emitting device that emits visible light, as said phosphors, are used phosphors which are one or more kinds of phosphors selected from a group consisting of oxides, oxynitrides and nitrides, and are a mixture consisting of two or more kinds of phosphors whose luminous efficiency is 35% or higher when excited by the visible light from said semiconductor light emitting device at room temperature. In addition, said mixture contains a first phosphor, and a second phosphor that is different from said first phosphor and capable of absorbing emitted light from said first phosphor, and said first phosphor is contained 85 weight % or more of said mixture of phosphors.11-27-2008
20090230839PHOSPHOR - Disclosed is a phosphor having enhanced luminance. Specifically disclosed is a phosphor characterized by being substantially composed of an oxide containing Sr, Ca, Eu, Mg, Si and a halogen element(s) at a molar ratio of a:b:c:d:e:f (wherein a is not less than 0.5 but less than l, b is not less than 0 but less than 0.5, c is more than 0 but less than 0.3, d is not less than 0.8 but not more than 1.2, e is not less than 1.9 but not more than 2.1 and f is not less than 0.0008 but not more than 0.3), which oxide further contains oxygen.09-17-2009
20110062858Oxazole Triplet Emitters for OLED Applications - The present invention relates to compounds which can be used in particular as ligands, to complexes and also to light-emitting devices and in particular to organic light-emitting devices (OLEDs). In particular, the invention relates to the use of luminescent oxazole-chelate metal complexes as emitters in such devices.03-17-2011
20100194265LIGHT-EMITTING MATERIALS FOR ELECTROLUMINESCENT DEVICES - The present invention concerns an electroluminescent device that comprises an anode and cathode separated by intermittent layers or crystal comprising an assembly of oligo atomic metal clusters confined in molecular sieve capable of emitting electromagnetic radiation of one or more colours when a voltage is applied over the device.08-05-2010
20110279017Oxycarbonitride Phosphors and Light Emitting Devices Using the Same - Disclosed herein is a novel family of oxycarbonitride phosphor compositions and light emitting devices incorporating the same. Within the sextant system of M-Al—Si—O—N—C-Ln and quintuplet system of M-Si—O—N—C-Ln (M=alkaline earth element, Ln=rare earth element), the phosphors are composed of either one single crystalline phase or two crystalline phases with high chemical and thermal stability. In certain embodiments, the disclosed phosphor of silicon oxycarbonitrides emits green light at wavelength between 530-550 nm. In further embodiments, the disclosed phosphor compositions emit blue-green to yellow light in a wavelength range of 450-650 nm under near-UV and blue light excitation.11-17-2011
20110279018ALPHA-SIALON PHOSPHOR, METHOD FOR PRODUCING SAME, AND LIGHT-EMITTING DEVICE - α-sialon phosphor that is α-sialon represented by a general expression: (M)11-17-2011
20110279016CARBONITRIDE BASED PHOSPHORS AND LIGHT EMITTING DEVICES USING THE SAME - Disclosed herein is a novel group of carbidonitride phosphors and light emitting devices which utilize these phosphors. In certain embodiments, the present invention is directed to a novel family of carbidonitride-based phosphors expressed as follows:11-17-2011
20110101852LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME - To provide a bright and highly reliable light-emitting device. An anode (05-05-2011
20090058265DISPLAY DEVICE AND COMPOSITE DISPLAY DEVICE - A display device which can be driven by a thin-film transistor and has a high brightness is provided. A low-voltage-driven inorganic luminescent layer and a control transistor are formed on a substrate. The voltage which is applied to the inorganic luminescent layer is controlled by the control transistor. The inorganic luminescent layer has such strength against heat and any damage such that the inorganic luminescent layer can be formed by sputtering method. A top-emission type display device and a bottom-emission type display device can be formed on the same substrate and the luminescent light can be emitted from the same position.03-05-2009
20110037379SUBSTRATE FOR ORGANIC LIGHT-EMITTING DEVICE, AND ALSO ORGANIC LIGHT-EMITTING DEVICE INCORPORATING IT - A substrate for an organic light-emitting device, includes a transparent substrate having an optical index n02-17-2011
20090051269(OXY) NITRIDE PHOSPHOR, WHITE LIGHT-EMITTING DEVICE INCLUDING THE (OXY) NITRIDE PHOSPHOR, METHOD OF PREPARING PHOSPHOR, AND NITRIDE PHOSPHOR PREPARED BY THE METHOD - Provided is an (oxy)nitride phosphor, which is a compound represented by Formula 1 below:02-26-2009
20120112627ORGANIC ELECTROLUMINESCENT ELEMENT AND LIGHT EMITTING POLYMER COMPOSITION - An organic electroluminescent element comprising: a pair of electrodes composed of an anode and a cathode; and a light-emitting layer provided between the electrodes, wherein the light-emitting layer comprises a light emitting polymer having one or more kinds of diyl group, as a repeating unit, selected from the group consisting of an unsubstituted or substituted fluorenediyl group and an unsubstituted or substituted benzofluorenediyl group, and a fullerene and/or a fullerene derivative.05-10-2012
20090206728LIGHT-EMITTING DEVICE, METHOD FOR MANUFACTURING LIGHT-EMITTING DEVICE, AND SUBSTRATE PROCESSING APPARATUS - A substrate process apparatus that forms a light emitting device configured with an organic layer including a light emitting layer on a substrate to be processed, the organic layer being formed between a first electrode and a second electrode, includes an organic layer forming apparatus wherein the organic layer is formed on the first electrode formed on the substrate to be processed; an electrode forming apparatus wherein the second electrode is formed on the organic layer; and an etching apparatus wherein the organic layer is etched.08-20-2009
20110298358WARM WHITE LED AND ITS LUTETIUM-BASED PHOSPHOR - A lutetium-based phosphor having the chemical formula: xLu12-08-2011
20110169398NITRIDE PHOSPHOR, METHOD OF PREPARING THE SAME, AND WHITE LIGHT-EMITTING DEVICE USING THE SAME - A nitride phosphor represented by Formula 1:07-14-2011
20100090585PHOSPHOR, PRODUCTION METHOD THEREOF, PHOSPHOR-CONTAINING COMPOSITION, LIGHT EMITTING DEVICE, AND DISPLAY AND ILLUMINATING DEVICE - To provide a phosphor that stably shows high emission intensity and brightness as well as superior temperature characteristics, under excitation by near-ultraviolet light, the phosphor contains an alkaline-earth metal aluminate and has a crystal phase comprising an alkali metal element and, in that crystal phase, the rate of substituted Eu (europium) to the number of sites which can be substituted with Eu of the crystal phase is 25% or higher and the ratio of the alkali metal element to the number of sites which can be substituted with Eu of the crystal phase is 3% or lower.04-15-2010
20100213823INORGANIC 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
20090085464Resin Composition and Sheet Containing Phosphor, and Light Emitting Element Using Such Composition and Sheet - Provided is a phosphor for a white light emitting device with a blue to ultraviolet light as a light source.04-02-2009
20120229018METHOD OF LIGHT DISPERSION AND PREFERENTIAL SCATTERING OF CERTAIN WAVELENGTHS OF LIGHT-EMITTING DIODES AND BULBS CONSTRUCTED THEREFROM - A light emitting diode (LED) bulb configured to scatter certain wavelengths of light. The LED bulb includes a base having threads, a bulb shell, at least one LED, and a plurality of particles disposed within the bulb shell. The plurality of particles has a first and second set of particles. The first set of particles is configured to scatter short wavelength components of light emitted from the at least one LED and has particles with an effective diameter that is a fraction of the dominant wavelength of the light emitted from the at least one LED. The second set of particles is configured to scatter light emitted from the at least one LED, and has particles with an effective diameter equal to or greater than the dominant wavelength of the light emitted from the at least one LED.09-13-2012
20090102355DISPLAY ELEMENT - The invention provides an element for a colour electroluminescent display for displaying multicoloured information, each element comprising at least two sub elements. One sub element comprises an electroluminescent material and a fluorescent material and a further sub element comprises the electroluminescent material and a filter material to select a portion of the electroluminescent emission.04-23-2009
20090189514LUMINESCENT MATERIAL - A lithium calcium silicate luminescent material is provided, which includes a tetragonal crystal phase containing Li, Ca, Si and O, and an activator containing Eu. The luminescent material exhibits a peak wavelength of emission spectrum falling within a wavelength region of 470 to 490 nm when excited by light having an emission peak falling within a wavelength region of 360 to 460 nm.07-30-2009
20090026917LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND VAPOR DEPOSITION APPARATUS - To provide a light-emitting element and a light-emitting device which can be designed and manufactured with redundancy. A light-emitting element of the invention includes a pair of electrode, and a layer containing a light-emissive substance between the pair of electrodes. The layer containing a light-emissive substance includes a layer containing a composite material, and the layer containing a composite material includes an organic compound and an inorganic compound. The concentration ratio of the organic compound to the inorganic compound changes periodically. The layer containing a composite maternal can be changed in electrical characteristics without changing the composition ratio of the organic compound to the inorganic compound in the layer or changing the kind of compounds used for the layer.01-29-2009
20090153023White light emitting diode and method of manufacturing the same - Provided is a white LED including a reflector cup; an LED chip mounted on the bottom surface of the reflector cup; transparent resin surrounding the LED chip; a phosphor layer formed on the transparent resin; and a light transmitting layer that is inserted into the surface of the phosphor layer so as to form an embossing pattern on the surface, the light transmitting layer transmitting light, incident from the phosphor layer, in the upward direction.06-18-2009
20090153024WHITE LIGHT EMITTING DEVICE AND PRODUCING METHOD THEREOF - A white-light emitting device comprises a substrate, a short wavelength light source, a protective layer, a first structure, and a second structure. The short wavelength light source is disposed on the substrate for generating a first light, and the protective layer covering the short wavelength light source is pervious to the first light. The first structure is disposed on the protective layer for generating a second light, in which the first structure includes a first quantum well and a transmission layer. The second structure is disposed on the first structure for generating a third light. Finally, the first light, the second light, and the third light are mixed to generate a white light.06-18-2009
20090153025METHOD OF MANUFACTURING ORGANIC LIGHT EMITTING DISPLAY APPARATUS - A method of manufacturing an organic light emitting display apparatus, the method including: forming an organic light emitting device including a first electrode, a second electrode, and an intermediate layer between the first electrode and the second electrode, on a substrate, the intermediate layer including an organic light emitting layer and an electron transport layer (ETL) containing an alkali metallic compound on the organic light emitting layer; sealing the organic light emitting device; and aging the organic light emitting device, wherein the aging includes thermal treatment at a temperature from about 80 to about 150 degrees C.06-18-2009
20090153022Phosphor distribution in LED lamps using centrifugal force - A method of manufacturing an LED lamp is disclosed. The method includes admixing an uncured curable liquid resin and a phosphor, dispensing the uncured admixture on an LED chip, centrifuging the chip and the admixture to disperse the phosphor particles in the uncured resin, and curing the resin while the phosphor particles remain distributed.06-18-2009
20090115314BORON NITRIDE NANOTUBE PASTE COMPOSITION, ELECTRON EMISSION SOURCE INCLUDING THE SAME, ELECTRON EMISSION DEVICE INCLUDING THE ELECTRON EMISSION SOURCE, AND BACKLIGHT UNIT AND ELECTRON EMISSION DISPLAY DEVICE INCLUDING THE ELECTRON EMISSION DEVICE - Boron nitride nanotube paste compositions, electron emission sources including the same, electron emission devices including the same and backlight units and electron emission display devices including the same are provided. A boron nitride nanotube paste composition includes about 100 parts by weight boron nitride nanotubes, from about 500 to about 2000 parts by weight glass frit, from about 1000 to about 2000 parts by weight filler, from about 2000 to about 4000 parts by weight organic solvent, and from about 4000 to about 6000 parts by weight polymer binder. Electron emission devices including the boron nitride nanotube electron emission sources have longer lifespan and improved uniformity among pixels.05-07-2009
20090096350FLUORESCENT MATERIAL AND LIGHT EMITTING DIODE USING THE SAME - The present invention relates to a thiogallate phosphor expressed as AB04-16-2009
20090146549LIGHT EMITTING DEVICE AND ILLUMINATION DEVICE - An LED with a semiconductor light emitting element that emits a blue or a blue-violet light, and a fluorescent material that absorbs some or all of the light emitted from the element and emits a fluorescent light of a wavelength different from the absorbed light. The fluorescent material is a mixed fluorescent material obtained by mixing a first fluorescent material that emits a blue-green or a green light, a second fluorescent material that has a peak emission wavelength longer than that of the first fluorescent material and emits a green or a yellow-green light, a third fluorescent material that has a 1 peak emission wavelength longer than that of the second fluorescent material and emits a yellow-green, a yellow or a yellow-red light, and a fourth fluorescent material that has a peak emission wavelength longer than that of the third fluorescent material and emits a yellow-red or a red light.06-11-2009
20080265749Phosphor-Converted Electroluminescent Device with Absorbing Filter - A phosphor-converted electroluminescent device comprising an electroluminescent light source (LED 10-30-2008
20080265747PHOSPHOR, LIGHT-EMITTING MEMBER, AND IMAGE DISPLAY APPARATUS - A phosphor of the present invention includes Ba10-30-2008
20080265748Oxynitride fluorescent material and light-emitting device - The invention has for its object the provision of an oxynitride fluorescent material has higher emission luminance than conventional rare earth element-activated sialon fluorescent materials.10-30-2008
20080265746PHENANTHROLINE COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME - The present invention discloses a phenanthroline compound which can be used as electron-transporting material in organic electroluminescence devices is disclosed. The mentioned phenanthroline compound is represented by the following.10-30-2008
20100141118QUANTUM DOT WHITE AND COLORED LIGHT-EMITTING DEVICES - A light-emitting device comprising a population of quantum dots (QDs) embedded in a host matrix and a primary light source which causes the QDs to emit secondary light and a method of making such a device. The size distribution of the QDs is chosen to allow light of a particular color to be emitted therefrom. The light emitted from the device may be of either a pure (monochromatic) color, or a mixed (polychromatic) color, and may consist solely of light emitted from the QDs themselves, or of a mixture of light emitted from the QDs and light emitted from the primary source. The QDs desirably are composed of an undoped semiconductor such as CdSe, and may optionally be overcoated to increase photoluminescence.06-10-2010
20090309485Nitride phosphor and production process thereof, and light emitting device - To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula L12-17-2009
20090309484DIRECT BAND-GAP NANODIAMOND CRYSTALS AND ULTRAVIOLET OPTICAL DEVICES USING THE SAME - Novel direct band gap crystalline nanodiamonds and light emitting devices utilizing the direct band gap crystalline nanodiamonds are disclosed. With providing the detailed information on the electronic states and the electron band structure of several crystalline nanodiamonds, preferred device structures including an electroluminescence-based solid-state light source and a cathode-luminescence-based micro light source are shown. These devices emit light in the region of ultraviolet wavelength, which can be designed from 180 nm to 230 nm by a choice of nanodiamonds, with referring to the information provided in the present invention. The related applications of these UV light emitting devices include a light source for sterilization, a light source for decomposing harmful substances, a light source for spectroscopy, a light source for exciting a phosphor to emit a white light, a micro light source for micro optoelectronic devices, and a light source for writing a super high density recording media.12-17-2009
20100117518CASCADED LIGHT EMITTING DEVICES BASED ON MIXED CONDUCTOR ELECTROLUMINESCENCE - A cascaded light emitting device. The cascaded light emitting device includes: a base electrode formed of a base electrode material and electrically coupled to a base voltage lead; a top electrode layer formed of a top electrode material and electrically coupled to a top voltage lead; a number of electroluminescent layers arranged between and electrically coupled to the base electrode and top electrode layer; and at least one middle electrode layer formed of a middle electrode material. Each of the middle electrodes is coupled between two juxtaposed electroluminescent layers. The electroluminescent layers include a mixed conductor that luminesces with a peak wavelength.05-13-2010
20100194266ELECTROLUMINESCENT ELEMENT - An electroluminescent element which comprises host materials and guest materials in a part of an electroluminescent layer, and which is superior in device characteristics such as luminous efficiency and luminous characteristics to those of the conventional electroluminescent element is provided. According to the present invention, device characteristics (luminous efficiency, luminous characteristics, or the like) of an electroluminescent element is improved by using host materials and guest materials which have a common skeleton (represented by the following general formula 1) for an electroluminescent layer interposed between a pair of electrodes in the electroluminescent element.08-05-2010
20100007267LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING THE LIGHT EMITTING DEVICE - To provide a light emitting device that does not experience a decline in radiant efficiency in use, enables luminous flux from LED elements to be increased, and white light of good color rendering to be produced, and heat generated by the LED elements to be smoothly transmitted to an SiC fluorescent substrate. The light emitting device is provided with first LED elements for emitting UV radiation, second LED elements for emitting visible light, an SiC fluorescent substrate that is mounted with the first LED elements and the second LED elements and is made of SiC doped with at least one of B and Al as well as N and emits visible light when excited by radiation emitted from the first LED elements, and has a body made of inorganic material.01-14-2010
20100079058ILLUMINATION SYSTEM COMPRISING A YELLOW GREEN-EMITTING LUMINESCENT MATERIAL - An illumination system, comprising a radiation source and a luminescent material comprising a phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of a wavelength different from that of the absorbed light; wherein said phosphor is a europium-activated oxonitridoalumosilicate of general formula AE04-01-2010
20090153026ORGANIC LIGHT-EMITTING DEVICE AND USE OF A TRANSPARENT ELECTROCONDUCTIVE LAYER IN AN ORGANIC LIGHT-EMITTING DEVICE - The invention relates to an organic light-emitting device comprising: 06-18-2009
20080211389PHOSPHOR COMPOSITION AND METHOD FOR PRODUCING THE SAME, AND LIGHT-EMITTING DEVICE USING THE SAME - A light-emitting device is produced using a phosphor composition containing a phosphor host having as a main component a composition represented by a composition formula: aM09-04-2008
20090289546PHOSPHOR AND METHOD FOR MANUFACTURING THE SAME, AND LIGHT-EMITTING DEVICE AND DISPLAY DEVICE USING PHOSPHOR - A phosphor includes (Sr11-26-2009
20090278441Luminescence conversion of led - A luminescence conversion of LED, which uses a blue emitting chip and two illuminating substances, whereby one emits a red and the other a yellow to green. Both illuminating substances are separated upstream from the chip.11-12-2009
20090284132Nitride phosphor and production process thereof, and light emitting device - To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula L11-19-2009
20090284131Display device and associated methods - A display device and associated methods, the display device including a first substrate and a second substrate arranged opposite to each other, a plurality of address electrodes disposed on the first substrate, a plurality of display electrodes disposed on the second substrate in a direction crossing the address electrodes, and red, green, and blue phosphor layers disposed in a discharge space between the first and second substrates, wherein the red phosphor layer includes a red phosphor and SiO11-19-2009
20090289545Warm-White Light-Emitting Diode and Its Phosphor Powder - The present invention discloses a warm-white-light emitting diode has the substrate of indium gallium nitride (InGaN) heterojunction containing a large amount of quantum wells and having a light conversion polymer layer, characterized by that the light conversion polymer layer is uniform in concentration, the light-emitting surface and edges of the indium gallium nitride heterojunction are covered with a thermosetting polymer, and the light conversion polymer layer contains some fluorescent powders, which are formed as at least two particle layers in the light conversion polymer layer to ensure the light transmitted reaching 20% of the first-order blue light and 70-80% of the second-order orange-yellow light from the indium gallium nitride heterojunction. The present invention also discloses a fluorescent powder.11-26-2009
20090009058LIGHT-EMITTING MATERIAL, LIGHT EMITTING-ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND METHOD FOR MANUFACTURING THEREOF - It is an object to provide a light-emitting material with higher emission luminance than conventional one in terms of a crystalline structure of the light-emitting material, as a light-emitting material using an inorganic compound. First baking is performed after mixing gallium arsenide, gallium phosphide, or gallium antimonide with manganese to form a first baked product, second baking is performed after mixing a base material with an element for forming a luminescent center material or a compound including the element to form a second baked product, and third baking is performed after mixing the first baked product with the second baked product, so that a light-emitting material is manufactured.01-08-2009
20090267487Organic light emitting display device - An organic light emitting display device includes a substrate; an organic light emitting unit formed on the substrate; and a sealing unit which seals the organic light emitting unit, wherein the sealing unit is formed by alternately stacking at least one first thin film and at least one second thin film, the first thin film being formed to surround a portion of the second thin film.10-29-2009
20090066218METHOD FOR GENERATING LOW COLOR TEMPERATURE LIGHT AND LIGHT EMITTING DEVICE ADOPTING THE SAME - A method for generating low color temperature light and a light emitting device adopting the same, comprise a LED component, phosphor capable to be excited by the emission light of the LED component, and a package colloid for encapsulating the LED component and the phosphor, wherein the package colloid is provided with a electrode lead for connecting the LED component with the external power supply, the peak wavelength of emission light of the LED light is 460-500 nm, the peak wavelength of emission light of the excited phosphor is 580-630 nm. The present invention only use one chip and one kind of phosphor to generate the low color temperature light which is of the same effect as that of the minitype tungsten lamp or the high pressure sodium lamp, and is of advantages including energy saving, low cost and environmental protection, etc. The present invention can be widely used in the manufacturing process of LED lamp of low color temperature, especially in the manufacturing the mini LED bulb.03-12-2009
20090261709ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF MANUFACTURING THE SAME - In a method of manufacturing an organic light emitting display according to an embodiment, when a thin film transistor substrate including a display area and a non-display area is prepared, an organic light emitting layer is formed on the display area. Then, a first cathode layer is formed on the organic light emitting layer through a first deposition method, and a second cathode layer is formed on the first cathode layer through a second deposition method. The first and/or second deposition method may be performed by using heat. Thus, the light-emitting quality of the organic light emitting display may be improved.10-22-2009
20090167154WHITE PHOSPHOR, LIGHT EMISSION DEVICE INCLUDING THE SAME, AND DISPLAY DEVICE INCLUDING THE LIGHT EMISSION DEVICE - A white phosphor, a light emission unit including the white phosphor, and a display device including the light emission unit are provided. The white phosphor comprises a green phosphor including a Tb-doped oxide host material, a blue phosphor and a red phosphor. The green phosphor doped with Tb is used as an activator, and has a wavelength which does not overlap with a wavelength of the blue phosphor, thereby improving color purity of the light emission device.07-02-2009
20080246389Systems and Methods for Front Contacts for Electroluminescent Apparatus and Flexible Display - Systems and methods are provided for front contacts utilized with electroluminescent displays. The method includes arranging a plurality of electroluminescent elements, where each electroluminescent element includes at least one top electrode, and where the electroluminescent elements are operable to emit electroluminescence from the top electrode, and providing a conductive layer, where the conductive layer is flexible and substantially transparent. The method further includes adhering the conductive layer to a first top electrode of a first electroluminescent element of the plurality of electroluminescent elements and to a second top electrode of a second electroluminescent element of the plurality of electroluminescent elements. The system includes a flexible support structure and a plurality of electroluminescent elements arranged on the flexible support structure, where each electroluminescent element includes at least one top electrode, and where the electroluminescent elements are operable to emit electroluminescence from the top electrode. The system further includes a conductive layer, where the conductive layer is flexible and substantially transparent and where the conductive layer is electrically connected to a first top electrode of a first electroluminescent element of the plurality of electroluminescent elements and a second top electrode of a second electroluminescent element of the plurality of electroluminescent elements.10-09-2008
20080246390Eliminating silver migration in EL lamps - A net negative charge is used to eliminate silver migration in an EL lamp. An electrode containing silver, either the entire electrode, a bus bar on the electrode, or a contact area on the electrode, receives a net negative charge while the EL lamp is being driven with alternating current. The net negative charge can be provided by the driver itself or by a current source, such as a battery or a charged capacitor; or by asymmetric current means in the current path of the EL lamp, including the lamp itself.10-09-2008
20090167152Semiconductor lamp - A semiconductor lamp is disclosed. The lamp comprises an electrode wire, light-emitting base material, electrode solenoid, a glass tube, silicon rubber layer and two insulated plugs. The outer rim of the electrode wire is in sequence covered by SiO07-02-2009
20090167153Light emitting diode lamp and light emitting device - The present invention aims at providing a white light emitting diode lamp (a bullet type light emitting diode lamp or a chip-type light emitting diode lamp to be mounted on a substrate) and light emitting device with warmness at a higher luminance, and an intermediate color light emitting diode lamp and light emitting device satisfying light emission in diversified color tones at a higher luminance.07-02-2009
20080284316Illuminating device, display device and optical film - To realize a configuration in which only light having an unnecessary wavelength is cut so that light having a necessary wavelength may be obtained efficiently, a filter layer that selectively reflects light having a particular wavelength and a phosphor layer containing a phosphor that is excited with the light having the particular wavelength to emit light are provided. Thus, the light reflected by the filter layer is converted into light having a different wavelength by the phosphor layer so as to pass through the filter layer. The filter layer is placed between a display element and a light source of an illuminating device, and the filter layer that selectively reflects a light component to be absorbed by the display element is used, whereby the light component to be absorbed by the display element is converted by the phosphor layer so as to pass through the display element. Accordingly, the illuminating device and a display device having very high luminance efficiency and color reproducibility may be realized.11-20-2008
20080290787DEVICE AND METHOD FOR IMPROVED POWER DISTRIBUTION FOR A TRANSPARENT ELECTRODE - A method for improving power distribution of a transparent electrode that includes forming an LED over a substrate; the LED including a first electrode, a transparent electrode, and one or more light-emissive layers formed there-between. A patterned protective layer is formed on the transparent electrode; the patterned protective layer having open areas wherein the protective layer is not present, and covered areas wherein the protective layer is present. A solution having curable conductive precursor components is deposited over the open areas onto the transparent electrode. The precursor components of the solution are pattern-wise cured to form patterned electrically conductive areas on the transparent electrode in the open areas, and any uncured precursor components of the solution are removed.11-27-2008
20080303412Light source having phosphor including divalent, trivalent and tetravalent elements - A phosphor having an excitation band relative to lights in the wide range of wavelengths from ultraviolet to visible light, and having an emission spectrum in the red range and so on, with a wide half value width, and an LED and a light source using the phosphor and emitting white and other color lights with good color rendering properties are provided. Powdered raw materials of Ca12-11-2008
20080303410Light Emitting Device, Lighting System, Backlight Unit for Display Device, and Display Device - To enhance emission efficiency and color rendering, a light emitting device includes: at least one light source; at least one first emitting section having at least one sort of luminescent material that can emit light including a wavelength component that is longer than the light emitted from light source when excited by the light emitted from light source; at least one second emitting section having at least one sort of luminescent material that can emit light including a wavelength component that is longer than the light emitted from first emitting section when excited by the light emitted from light source and first emitting section; wherein light emitting device includes at least one light shielding unit that protects at least a part of the light emitted from first emitting section from entering second emitting section.12-11-2008
20080309220Sialon Phosphor Particles and Production Method Thereof - To provide sialon phosphor particles or a powder exhibiting high emission intensity in the region from ultraviolet to blue and not requiring a strong pulverization operation for pulverizing a sintered body or a large aggregated lump, and a production method thereof. Sialon phosphor particles represented by the formula: M12-18-2008
20110204769FLUORESCENT MATERIAL AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME - The embodiment provides a process for production of a green light-emitting oxynitride fluorescent material having Sr08-25-2011
20080238298IMAGE DISPLAY DEVICE - An image display device is provided, which includes a first substrate having a cold-cathode electron-emission element which emits electrons, and a second substrate which is spaced from and opposed to the first substrate. The second substrate has a transparent substrate, a light-emitting layer provided on the transparent substrate and including phosphor particles containing zinc sulfide as a base material, a boron nitride film disposed on a surface of the light-emitting layer, and an anode applying a voltage to the light-emitting layer.10-02-2008
20080211387Electroluminescent Device - An electroluminescent device comprising at least one electroluminescent light source (09-04-2008
20090015136DISPLAY DEVICE - A display device is disclosed. The display device includes a first substrate, a light emitting unit on the first substrate, a second substrate on the light emitting unit, and a seal member that attaches the first substrate to the second substrate. The light emitting unit includes a first electrode, a light emitting layer, and a second electrode. The seal member includes a straight portion and a curved portion. A radius of curvature of the curved portion lies substantially in a range between 0.2 mm and 2.5 mm.01-15-2009
20090015137Light emitting apparatus with open loop control - A light emitting apparatus includes a blue light emitting diode (LED), a first and second phosphor layers. The second phosphor layer is between the blue LED and the first phosphor layer. When a blue beam of a shorter wavelength excites the phosphor layers, the excitation efficiency of the first phosphor layer is greater than that of the second phosphor layer. When a blue beam of a longer wavelength excites the phosphor layers, the excitation efficiency of the first phosphor layer is less than that of the second phosphor layer. Moreover, the wavelength of the peak intensity of the light beam from the first phosphor layer is shorter than that of the second phosphor layer. And, the dividing value between the shorter wavelength and the longer wavelength is within the range from a first wavelength to a second wavelength.01-15-2009
20080303409Phosphor and Light Emitting Instrument - The present invention aims at providing a chemically stabilized inorganic phosphor which emits orange light or red light at wavelengths longer than the conventional rare-earth activated sialon phosphor and which has a higher luminance.12-11-2008
20080197767Lamp and Method of Manufacturing a Lamp - A lamp includes an envelope of a vitreous composition, having a pinched part at at least one end to form a seal isolating an interior of the envelope from the environment of the envelope, and an arrangement for conducting electrical current to the interior of the envelope, having a section embedded in one of the pinched parts of the envelope and a section external to the envelope. At least part of embedded section of the arrangement for conducting electrical current is at least partly surrounded by a composition including at least one of phosphorus in a non-volatile form and an acid thereof.08-21-2008
20080284315Light emitting device and light emitter - A light emitting device includes a light emitting element, a substrate with a flat mounting surface for mounting the light emitting element thereon, a sealing part for the light emitting element on the mounting surface of the substrate. The sealing part is formed of glass including a phosphor to be excited by light emitted from the light emitting element to radiate a wavelength conversion light. The sealing part is shaped like a rectangular solid wherein a lateral length is defined as a distance between a center of a bottom surface of the sealing part bonded to the mounting surface and a side face perpendicular to the mounting surface, a vertical length is defined as a distance between the mounting surface and a top surface of the sealing part, and at least one of the lateral length is longer than the vertical length. The device further includes a transparent member formed on the top surface of the sealing part. The transparent member includes the phosphor at a concentration higher than the sealing part.11-20-2008
20090085466Fluorescent display device and conductive paste for the fluorescent display device - A fluorescent display device includes an aluminum wiring layer formed on an insulating substrate; an insulating layer formed on the aluminum wiring layer, the insulating layer being provided with a through-hole disposed on the aluminum wiring layer; a conductive layer filled in the through-hole. The fluorescent display device further includes an anode conductor formed on the insulating layer to cover the conductive layer and a phosphor layer formed on the anode conductor. The conductive layer is formed of solid mixture containing aluminum and graphite.04-02-2009
20090160316PHOSPHORS AND LIGHTING APPARATUS USING THE SAME - A phosphor has a chemical formula of: (X06-25-2009
20090085465FLUOROPHOR AND METHOD FOR PRODUCTION THEREOF AND ILLUMINATOR - A fluorophor comprising, as a main component, an α-type sialon crystal which contains at least an A element (wherein A represents one or more elements selected from among Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Er, Tm and Yb), an M element (wherein M represents one or more elements selected from among Li, Na, Mg, Ca, Y, La, Gd and Lu), Si, Al, oxygen and nitrogen, and is represented by the general formulae: (M04-02-2009
20120068595PHOSPHOR PARTICLE GROUP AND LIGHT EMITTING APPARATUS USING THE SAME - Provided is a phosphor particle group of divalent europium-activated oxynitride green light emitting phosphor particles each of which is a β-type SiAlON substantially represented by a general formula: EuaSibAlcOdNe, where 0.005≦a≦0.4, b+c=12, d+e=16, wherein 60% or more of the phosphor particle group is composed of the phosphor particles in which a value obtained by dividing a longer particle diameter by a shorter particle diameter is greater than 1.0 and not greater than 3.0. A high-efficiency and stable light emitting apparatus using a β-type SiAlON, which includes a light converter using the phosphor particle group, and a phosphor particle group therefor are also provided.03-22-2012
20090206730LIGHT EMITTING ELEMENT AND DISPLAY DEVICE - This light emitting device includes a pair of electrodes at least one of which is transparent or translucent, and a phosphor layer that is sandwiched between the electrodes and has a polycrystalline structure made of a first semiconductor material, and in this structure, a second semiconductor material different from the first semiconductor material is segregated on a grain boundary of the polycrystalline structure. The first semiconductor material and the second semiconductor material preferably have semiconductor structures of conduction types that are different from each other. Moreover, the first semiconductor material preferably has an n-type semiconductor structure, and the second semiconductor material preferably has a p-type semiconductor structure. Furthermore, in the case where the first semiconductor material is a zinc-based material containing zinc, at least one of the paired electrodes is preferably made of a material containing zinc.08-20-2009
20090051268WHITE PHOSPHOR, LIGHT EMISSION DEVICE INCLUDING THE SAME, AND DISPLAY DEVICE - A white phosphor, and a light emission device including the white phosphor, and a display device including the white phosphor, the white phosphor including 40 to 45 parts by weight of a blue phosphor selected from the group consisting of ZnS:(Ag,Cl), ZnS:(Ag,Al), ZnS:(Ag,Al,Cl), and combinations thereof; 30 to 40 parts by weight of a green phosphor selected from the group consisting of ZnS:(Cu,Al), ZnS:(Cu,Au,Al), and combinations thereof; and 20 to 25 parts by weight of a red phosphor selected from the group consisting of Y02-26-2009
20090051270EL Display Device and Manufacturing Method Thereof - Reducing the manufacturing cost of an EL display device and an electronic device furnished with the EL display device is taken as an objective. A textured structure in which projecting portions are formed on the surface of a cathode is used. External stray light is diffusely (irregularly) reflected by the action of the projecting portions when reflected by the surface of the cathode, and therefore a defect in which the face of an observer or the surrounding scenery is reflected in the surface of the cathode can be prevented. This can be completed without using a conventionally necessary high price circular polarizing film, and therefore it is possible to reduce the cost of manufacturing the EL display device.02-26-2009
20090085463THERMO-OPTICALLY FUNCTIONAL COMPOSITIONS, SYSTEMS AND METHODS OF MAKING - A high temperature, stabilized thermo-optically functional composite is disclosed. The composite includes a phase stabilized matrix including a first component stabilized by a second component and a plurality of discrete metallic particles interspersed with respect to the matrix, wherein the composite is stable at temperatures greater than about 2000 degrees K.04-02-2009
20110227477GARNET-BASED PHOSPHOR CERAMIC SHEETS FOR LIGHT EMITTING DEVICE - Some embodiments disclosed herein include a lighting apparatus having a composite. The composite may include a first emissive layer and a second emissive layer. The first emissive layer may include a first garnet phosphor having a common dopant. The second emissive layer may include a second garnet phosphor having the common dopant. In some embodiments, the first emissive layer and the second emissive layer are fixed together. Some embodiments disclosed herein include efficient and economic methods of making the composite. The method may include, in some embodiments, sintering an assembly that includes pre-cursor materials for the first emissive layer and the second emissive layer.09-22-2011
20110227476LIGHT EMITTING DEVICE USING ORANGE-RED PHOSPHOR WITH CO-DOPANTS - Disclosed herein are lighting apparatuses having a light source, a first phosphor, and a second phosphor, wherein the lighting apparatuses exhibit increased R9 values. In some embodiments, the light source is configured to emit radiation having a wavelength of peak emission between about 495 nm and about 500 nm. The first phosphor may have a first wavelength of peak emission between about 495 nm and about 600 nm. The second phosphor may be represented by the formula RE09-22-2011
20090212686INORGANIC EL BLUE-LIGHT EMITTING BODY, METHOD FOR MANUFACTURING THE SAME, AND LIGHT EMITTING DEVICE - In manufacturing of an inorganic EL blue-light emitting body, at least a sulfide light emitting body and a rare-earth copper oxychaleogenide (MCuOS, wherein M is a rare-earth metal) are mixed and the obtained mixture is baked at 600° C. or more and 1000° C. or less, whereby the sulfide light emitting body can include the rare-earth copper oxychalcogenide (MCuOS).08-27-2009
20090200918Light-Emitting Element, Light-Emitting Device, and Electronic Device - A light-emitting element including a light-emitting layer and a control layer between a first electrode and a second electrode is provided. The control layer includes a first organic compound and a second organic compound. The amount of the included first organic compound is larger than the amount of the included second organic compound. The second organic compound has the property of trapping carriers that have the same polarity as carriers transported by the first organic compound. The concentration and carrier-trapping property of the second organic compound included in the control layer satisfy certain conditions.08-13-2009
20090195144LIGHT EMITTING DEVICE AND ELECTRONIC APPARATUS - A light emitting device includes a substrate, a plurality of light emitting elements that is formed on the substrate, and a partition wall layer that is formed on the substrate so as to form a plurality of opening parts in the plan view. Each of the plurality of light emitting elements includes a pixel electrode, an opposing electrode, and a light emitting function layer interposed between the pixel electrode and the opposing electrode. One of the light emitting function layers is formed to be assigned to each of the plurality of opening parts, and a plurality of the pixel electrodes is formed to be fitted into each of the plurality of opening parts. One pixel of the light emitting device includes the light emitting element that includes at least one of the pixel electrodes fitted into one of the plurality of opening parts, and at least one of the pixel electrodes that is fitted into the one of the plurality of opening parts that is adjacent to each other.08-06-2009
20090001871Light emission device and display device using the light emission device as a light source - A light emission device, which can enhance degree of vacuum in a vacuum vessel by increasing an adsorption efficiency of a getter, and a display device using the light emission device for a light source are provided. The light emission device includes a vacuum vessel having first and second substrates facing each other with a predetermined distance therebetween, and a sealing member disposed between the first and second substrates and enclosing an inner space formed between the first and the second substrates. An electron emission unit is located on one side of the first substrate and having a plurality of electron emission regions. A light emission unit is located on one side of the second substrate and having an anode electrode and a phosphor layer. A getter layer is disposed on an inner surface of the sealing member that faces an inner space of the vacuum vessel.01-01-2009
20090212685ELECTROLUMINESCENT ARRANGEMENT - An electroluminescent arrangement comprising a substrate (08-27-2009
20080315750Display Device and Green Phosphor - A display device comprising at least one phosphor layer, the phosphor layer containing a green phosphor represented by the following formula: (A12-25-2008
20080315752White light emitting diode - Provided is a white light emitting diode (LED) including a blue LED chip; and yellow, green, and red light emitting phosphors that are coated on the blue LED chip at a predetermined mixing ratio and converts light, emitted from the blue LED chip, into white light.12-25-2008
20090021145PHOSPHOR, LIGHT-EMITTING DEVICE, AND PLASMA DISPLAY PANEL - The present invention is a blue phosphor that is represented by a general formula xSrO.yEuO.MgO.zSiO01-22-2009
20090021143Electron emission device and electron emission type backlight unit comprising the same - An electron emission device that includes a first electrode, a second electrode facing the first electrode, and a plurality of electron emission units on a side of the first electrode and electrically connected to the first electrode.01-22-2009
20090021144PHOSPHORS AND LIGHTING APPARATUS USING THE SAME - A phosphor has a chemical formula of: A01-22-2009
20090021142LIGHT EMISSION DEVICE AND DISPLAY DEVICE - A light emission device and a display device provided with the light emission device are provided. The light emission device includes first and second substrates opposing each other. An electron emission unit is arranged on the first substrate. A light emission unit is provided on the second substrate and has an active area and an inactive area surrounding the active area. An arcing preventing member is formed on the inactive area. The arcing preventing member is formed to satisfy the condition: 0.3≦H/W≦1.0, where W is a width of the active area and H is a height of the arcing preventing member.01-22-2009
20090315448PHOSPHOR, PHOSPHOR PASTE AND LIGHT EMITTING DEVICE - The present invention provides a phosphor, a phosphor paste and a light emitting device. The phosphor comprises a compound represented by the formula (1): M12-24-2009
20090273275ELECTROLUMINESCENT DISPLAYS - An electroluminescent layer for a light. The light includes a phosphor with a fluorescent pigment or dye.11-05-2009
20100187974OXYNITRIDE LUMINESCENT MATERIAL, PREPARATION METHOD AND ITS APPLICATIONS - The present invention relates to semiconductor field, especially relates to an oxynitride luminescent material, preparation method and its application. The oxynitride has a chemical formula of A07-29-2010
20090121615Cerium and Europium Doped Phosphor Compositions and Light Emitting Devices Including the Same - Compounds of Formula I, which include both cerium and europium, may be useful as phosphors in solid state light emitting devices. Light emitting devices including such phosphors may emit warm white light.05-14-2009
20100181897CERAMIC COMPOSITE FOR PHOTOTRANSFORMATION AND LIGHT EMITTING DEVICE USING THE SAME - A light-converting ceramic composite comprising a solidified body having a texture of at least two or more oxide phases being continuously and three-dimensionally entangled together, with at least one of the oxide phases being a fluorescence-emitting crystal phase, wherein the interface length between the oxide phases per 1 mm07-22-2010
20100156274HALOSILICATE PHOSPHOR AND WHITE LIGHT EMITTING DEVICE INCLUDING THE SAME - A halosilicate phosphor represented by Formula 106-24-2010
20090079327GREEN LIGHT EMITTING PHOSPHOR AND LIGHT EMITTING DEVICE USING THE SAME - A green light emitting phosphor and a light emitting device are provided. The green light emitting phosphor includes a composition represented by the formula Sr03-26-2009
20100176714FLUORESCENT 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
20100259161PHOSPHORS AND WHITE LIGHT EMITTING DEVICES INCLUDING SAME - A phosphor represented by Formula 1:10-14-2010
20130214675ALLOY POWDER FOR AW MATERIAL OF INORGANIC FUNCTIONAL MATERIAL AND PHOSPHOR - The present invention relates to a phosphor comprising a nitride or an oxynitride, comprising an X-ray powder diffraction pattern comprising at least one Region having at least one peak with an intensity ratio I of 8% or less, the X-ray powder diffraction pattern measured in the 2θ range from 10° to 60° using a CuKα line (1.54184 {acute over (Å)}), wherein the Region is the 2θ range from 41.5° to 47°, the intensity of each peak is a value obtained after background correction, and the intensity ratio I is defined by the formula (I08-22-2013
20100013377Compounds for use in Opto-Electrical Devices - A composition for use in fabricating opto-electrical devices comprising a solution processable triazine host material and a phosphorescent moiety.01-21-2010
20090322208LIGHT EMITTING DEVICE HAVING A REFRACTORY PHOSPHOR LAYER - A light emitting device and method of producing the same is disclosed. The light emitting device includes a transparent thermal conductor layer, a refractory phosphor layer provided on the transparent thermal conductor layer, and a light emitting semiconductor arranged to emit light toward the transparent thermal conductor layer and the refractory phosphor layer.12-31-2009
20100225226LIGHT EMITTING DEVICE - A light emitting device that has excellent color rendering performance is provided.09-09-2010
20100219746PHOSPHOR AND LIGHT EMITTING DEVICE - A light emitting device includes a light emitting element 09-02-2010
20100237767SIALON PHOSPHOR, PROCESS FOR PRODUCING THE SAME, AND ILLUMINATOR AND LUMINESCENT ELEMENT EMPLOYING THE SAME - Phosphor that can provide white LED that uses a blue LED or an ultraviolet LED as a light source and that has superior luminous efficiency. This phosphor includes, as a main component, α-type sialon represented by a general expression: (M1)x(M2)y(Si,Al)09-23-2010
20100127613Luminescent Particles, Methods of Identifying Same and Light Emitting Devices Including the Same - A luminescent particle includes a luminescent compound that is configured to perform a photon down conversion on a portion of received light and a reflectance reducing outer surface of the luminescent particle that is operable to increase the portion of received light that is absorbed in the luminescent particle.05-27-2010
20100123387ORGANIC LIGHT EMITTING DEVICE - An organic light emitting device includes: a substrate; thin film structures formed on the substrate; a pixel electrode including a metal layer formed on the thin film structures, and a transparent conductor layer formed on the metal layer; a common electrode facing the pixel electrode; and an organic light emitting member disposed between the pixel electrode and the common electrode, wherein the organic light emitting member includes an emission layer and a plurality of auxiliary layers, and the profile thickness of a first layer as at least one layer among the emission layer and the auxiliary layers on the substrate is different from the profile thickness of at least one second layer that is different from the first layer among the emission layer and the auxiliary layers.05-20-2010
20110127905ALKALINE EARTH BORATE PHOSPHORS - A phosphor of formula I is included phosphor composition in a lighting apparatus capable of emitting white light06-02-2011
20090072708Nitride phosphor and production process thereof, and light emitting device - To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula L03-19-2009
20090072710FLUORESCENT LIGHTING CREATING WHITE LIGHT - A light emitting system (03-19-2009
20090072709LIGHT-EMITTING DEVICE AND ELECTRONIC APPARATUS - A light-emitting device includes a light-emitting element having a first electrode layer, a second electrode, a light-emitting functional layer, a reflective layer which reflects light toward the light-emitting functional layer, a translucent semi-reflective layer which reflects some portion of light emitted from the light-emitting functional layer and transmits the rest of light therethrough, and a color filter which transmits light which passed through out the translucent reflective layer. An optical path d03-19-2009
20090128006SILICON-CONTAINING PHOSPHOR FOR LED, ITS PREPARATION AND THE LIGHT EMITTING DEVICES USING THE SAME - A silicon-containing phosphor for LED and its preparation method, and the devices incorporating the same. The phosphor in the present invention can be represented as AO.aSiO05-21-2009
20090115313LIGHT EMITTING DEVICE AND FABRICATING METHOD THEREOF - A light emitting device and a fabricating method thereof are described. The light emitting device includes a substrate, a light emitting chip, a tubular structure, and a fluorescent conversion layer. The tubular structure is formed on a surface of the substrate. The light emitting chip is disposed on the surface of the substrate and is surrounded by the tubular structure. The fluorescent conversion layer is disposed in the tubular structure and covers the light emitting chip. A ratio of a maximal vertical thickness and a maximal horizontal thickness of the fluorescent conversion layer at the light emitting chip is between 0.1 and 10. A distance for the light ray to pass through the fluorescent conversion layer is controlled by using the tubular structure, so as to solve a problem of the conventional art that fluorescent powder coating package technique results in non-uniform color temperature of the emitted light.05-07-2009
20090108732White phosphor, and white light-emitting equipment of device - A white phosphor is provided, which is a white phosphor comprising a single material, wherein the light-emitting center is one element other than Mn, and emitting white light having excellent color rendering properties by near ultraviolet excitation. The white phosphor is represented by the formula Sr04-30-2009
20090102356NOVEL ORGANIC COMPOUND HAVING ELECTRON-TRANSPORTING AND/OR HOLE-BLOCKING PERFORMANCE AND ITS USE AND OLEDs COMPRISING THE COMPOUND - Disclosed herein are several organic compounds having electron-transporting and/or hole-blocking performance and their preparation method and use and the OLEDs comprising the organic compound. The organic compounds exhibit high ionization potential (IP), electron affinity (Ea), glass transition temperature (Tg) and high electron mobility, and are a kind of good electron-transporting material with good hole-blocking ability. The devices comprising these compounds as one of the emitting layer, electron-transporting layer (ETL) and hole-blocking layer (HBL) show improved efficiency and better color purity.04-23-2009
20090102354RED PHOSPHOR, METHOD FOR MANUFACTURING THE SAME AND LIGHT EMITTING DIODE FOR USING THE SAME - The present invention provides a red phosphor, a method for manufacturing the red phosphor and a light emitting device using the red phosphor, in which the red phosphor is expressed as a chemical formula of (Ca,Sr)04-23-2009
20100301739LUMINESCENT CERAMIC AND LIGHT-EMITTING DEVICE USING THE SAME - Some embodiments provide luminescent ceramics which have a lower amount of dopant than conventional luminescent ceramics. In some embodiments, the luminescent ceramic comprises a host material comprising a rare earth element and at least one rare earth dopant, wherein the rare earth dopant may be about 0.01% to 0.5% of the rare earth atoms present in the material. Some embodiments provide luminescent ceramic comprising: a polycrystalline phosphor represented by the formula (A12-02-2010
20130140981LUMINESCENT SUBSTANCE AND LIGHT SOURCE HAVING SUCH A LUMINESCENT SUBSTANCE - A blue to yellow emitting phosphor from the class of orthosilicates, which substantially has the structure EA2SiO4:D, wherein the phosphor comprises as component EA at least one of the elements EA=Sr, Ba, Ca or Mg alone or in combination, wherein the activating doping D consists of Eu and wherein a deficiency of SiO2 is introduced, such that a modified sub stoichiometric orthosilicate is present.06-06-2013
20100133987PHOSPHOR AND WHITE LIGHT ILLUMIANTION DEVICE UTILIZING THE SAME - The invention provides phosphors composed of EuMg06-03-2010
20100231120CERAMIC COMPOSITE LIGHT-CONVERTING MEMBER AND LIGHT-EMITTING DEVICE USING THE SAME - The present invention relates to a ceramic composite light-converting member which is a solidified body having a texture of at least two or more oxide phases being continuously and three-dimensionally entangled with each other, where at least one of the oxide phases is a fluorescence-emitting phase and the composition as a whole is represented by:09-16-2010
20110025194FLUOROPHORES - Provided are phosphors that can exhibit higher emission luminance. Phosphors in which the activator is included in a compound represented by Formula xM02-03-2011
20110025193PHOSPHOR AND LIGHT EMITTING DEVICE - A phosphor includes a composition represented by the formula: (M02-03-2011
20110043100METHOD OF FORMING PHOSPHOR FILM AND METHOD OF MANUFACTURING LIGHT EMITTING DIODE PACKAGE INCORPORATING THE SAME - The invention relates to a method of forming a phosphor film and a method of manufacturing an LED package incorporating the same. The method of forming a phosphor film includes mixing phosphor and light-transmitting beads in an aqueous solvent such that the nano-sized light-transmitting beads having a first charge are adsorbed onto surfaces of phosphor particles having a second charge. The method also includes coating a phosphor mixture obtained from the mixing step on an area where the phosphor film is to be formed, and drying the coated phosphor mixture to form the phosphor film. The invention further provides a method of manufacturing an LED package incorporating the method of forming the phosphor film.02-24-2011
20090066220Electroluminescent device - The electroluminescent device successively comprises a cathode, an electroluminescent layer, a transparent electrode layer, an evanescent light-scattering layer comprising a matrix composed of a low-refractive material containing light-scattering particles, and a transparent sheet/plate. Such an electroluminescent device is decreased in total reflection not only at a boundary surface between a transparent substrate and an outside air layer but also at a boundary surface of the transparent electrode layer on its light extraction side, and therefore, is considerably improved in light extraction efficiency. In addition, in the electroluminescent device provided with a barrier layer, the transparent electrode layer and the electroluminescent layer can be well protected so that deterioration of electroluminescent pigments and occurrence of dark spots can be effectively prevented, resulting in enhanced-life of the device.03-12-2009
20090066221ELECTROLUMINESCENT DEVICE - A conversion element (03-12-2009
20090066219Electroluminescent device - The electroluminescent device successively comprises a cathode, an electroluminescent layer, a transparent electrode layer, an evanescent light-scattering layer comprising a matrix composed of a low-refractive material containing light-scattering particles, and a transparent sheet/plate. Such an electroluminescent device is decreased in total reflection not only at a boundary surface between a transparent substrate and an outside air layer but also at a boundary surface of the transparent electrode layer on its light extraction side, and therefore, is considerably improved in light extraction efficiency. In addition, in the electroluminescent device provided with a barrier layer, the transparent electrode layer and the electroluminescent layer can be well protected so that deterioration of electroluminescent pigments and occurrence of dark spots can be effectively prevented, resulting in enhanced life of the device.03-12-2009
20110043101LIGHT-EMITTING DEVICE - Disclosed is a light-emitting device including a light-emitting element emitting primary light, and a light converter absorbing a part of the primary light emitted from the light-emitting element and emitting secondary light having a longer wavelength than the primary light. The light converter contains a green light-emitting phosphor and a red light-emitting phosphor. The green light-emitting phosphor is composed of at least one phosphor selected from a divalent europium-activated oxynitride phosphor substantially represented by the following formula: Eu02-24-2011
20090033207High Quantum Efficiency Silicon Nanoparticle Embedded SiOxNy Luminescence Device - A method is provided for fabricating a high quantum efficiency silicon (Si) nanoparticle embedded SiO02-05-2009
20110140594INORGANIC ELECTROLUMINESCENT DEVICE - An inorganic electroluminescent device is provided, the inorganic electroluminescent device including: a multilayer structure containing at least one pair of electrodes, and a light-emitting layer provided between the electrodes, the light-emitting layer contains at least one matrix material, at least one element forming a luminescent center, and Cu, wherein the matrix material is selected from the group consisting of II Group-XVI Group compounds, XII Group-XVI Group compounds, and mixed crystals thereof, and the light-emitting layer constitutes an inorganic phosphor layer having a composition gradient that Cu concentration in the host material varies by a factor of at least 10 in a thickness direction of the light-emitting layer.06-16-2011
20090315449Warm-white light-emitting diode and its orange phosphor powder - The present invention discloses an orange phosphor powder having a rare-earth aluminate have garnet structure, which is characterized by that its chemical composition is added with compounds of the IV and V groups elements and the stoichiometry formula of the orange phosphor powder is (ΣLn)12-24-2009
20100052514PHOSPHOR, METHOD FOR PREPARING THE SAME, AND LIGHT EMITTING DIODE USING THE SAME - Disclosed are a phosphor, method for preparing the same, and light emitting diode using the same. The method comprises the steps of preparing a precursor solution by mixing strontium nitrate (Sr(NO03-04-2010
20100072881SIALON PHOSPHOR - A SiAlON phosphor represented by a general formula (1)03-25-2010
20100066238Electrically tunable plasmon light tunneling junction - An electrically modulated plasmonic junction generates surface plasmons from an electrical signal from an electrical source, with the tunnel junction having a contact with a tapered end forming the junction in a gap between the contact and a substrate, with the gap serving to translate electrical signals into surface plasmons that are in turn translated into emitted photons communicated externally through a transmissive oxide, so that the junction can function as an electrically controlled light emitter preferably built as a nano-scale broadband optical emitter whose output wavelength can be electrically tuned over hundreds of nanometers, can be directly modulated at high speeds, and can have improved efficiencies compared to standard silicon optical sources, and the junction can also operate in a reserve mode for light detection.03-18-2010
20100066237POLYMER COMPOUND AND POLYMER LIGHT EMITTING DEVICE USING THE SAME - A polymer compound comprising at least one of residues of compounds of the following formula (1):03-18-2010
20110068681LUMINESCENT COMPOSITION AND INORGANIC ELECTROLUMINESCENT SHEET USING THE SAME - The present invention provides a luminescent composition which is capable of providing an inorganic electroluminescent sheet with a high productivity at low costs in an efficient manner, and has a desired light transmittance (transparency) when no electric voltage is applied thereto, an inorganic electroluminescent sheet obtained from the luminescent composition which can be mass-produced, and a process for producing the inorganic electroluminescent sheet. The present invention relates to a luminescent composition including an inorganic electroluminescent substance and a binder resin, wherein a content of the inorganic electroluminescent substance is not less than 0.5 part by mass and less than 100 parts by mass on the basis of 100 parts by mass of the binder resin; and an inorganic electroluminescent sheet including at least a first transparent substrate, a first transparent electrode, an inorganic electroluminescent layer, a first transparent electrode and a second transparent substrate which are successively laminated in this order, wherein the inorganic electroluminescent layer is formed from the above luminescent composition, and the inorganic electroluminescent sheet has a light transmittance of 60% or more as measured at a wavelength of 550 nm under a non-light emitting condition.03-24-2011
20110068680PHOSPHOR, LIGHT EMITTING DEVICE, AND PLASMA DISPLAY PANEL - The present invention provides a phosphor with high luminance and color purity. The phosphor of the present invention is represented by the general formula: aYO03-24-2011
20090026918NOVEL PHOSPHOR AND FABRICATION OF THE SAME - The present invention provides a light emitting diode-converted phosphor compound having the following formula:01-29-2009
20090026915Phosphor, Phosphor Sheet, and Manufacturing Method Therefore, and Light Emission Device Using the Phosphor - To provide a phosphor having a broad emission spectrum in a range of blue color (in a peak wavelength range from 400 nm to 500 nm), having a broad flat excitation band in a near ultraviolet/ultraviolet range, and having excellent emission efficiency and emission intensity/luminance. The phosphor is given as a general composition formula expressed by MmAaBbOoNn:Z, (where element M is the element having bivalent valency, element A is the element having tervalent valency, element B is the element having tetravalent valency, O is oxygen, N is nitrogen, and element Z is more than one kind of element acting as an activator), satisfying 5.0<(a+b)/m<9.0, 0≦a/m≦2.0, 0≦o≦n, n=2/3m+a+4/3b−2/3o, and has an emission spectrum with a maximum peak in the wavelength range from 400 nm to 500 nm under an excitation of the light in a wavelength range from 250 nm to 430 nm.01-29-2009
20100301738PHOSPHOR, LIGHT EMITTING DEVICE USING THE SAME AND METHOD OF MANUFACTURING THE PHOSPHOR - Provided are a phosphor which is capable of emitting green light of high luminance and in which unfavorable effects on other members has been reduced so as to be applicable to white light having excellent light emitting characteristics, a light emitting device using the phosphor, and a method for manufacturing the phosphor. The phosphor containing silicon, magnesium, and chlorine, and activated with europium and capable of emitting green light, in which the molar ratio of chlorine to magnesium is in a range of 1.0≦Cl/Mg≦1.9. Introduction of chlorine at such a composition ratio improves the light emitting characteristics and the amount of chlorine dissolved.12-02-2010
20100052513SILICATE BASE LUMINESCENT MATERIALS HAVING MULTIPLE EMISSION PEAKS, PROCESSES FOR PREPARING THE SAME AND LIGHT EMITTING DEVICES USING THE SAME - A silicate luminescent material excitable by an excitation light source having emissions in UV to blue light region, a process for producing the same, and a white light emitting device. The luminescent material has an emission spectrum with at least two peaks in a range of from 370 to 760 nm, and has a general chemical composition formula of aAO.bA′O.cSiO03-04-2010
20090251044PHOSPHOR, METHOD FOR PRODUCTION THEREOF, AND LIGHT-EMITTING APPARATUS - A phosphor represented by M110-08-2009
20090243467PHOSPHOR AND PRODUCTION METHOD THEREOF, AND PHOSPHOR-CONTAINING COMPOSITION, LIGHT EMITTING DEVICE, IMAGE DISPLAY AND LIGHTING SYSTEM - To provide a phosphor having nearly spherical shapes, the phosphor has an elemental ratio represented by the formula below, and contains at least two kinds of Li, Na, K, Rb, Cs, P, Cl, F, Br, I, Zn, Ga, Ge, In, Sn, Ag, Au, Pb, Cd, Bi and Ti.10-01-2009
20090230840Nitride phosphor and production process thereof, and light emitting device - To provide a phosphor containing a comparatively much red component and having high light emitting efficiency, high brightness and further high durability, the nitride phosphor is represented by the general formula L09-17-2009
20090140633LIGHT-EMITTING MODULE, AND DISPLAY UNIT AND LIGHTING UNIT USING THE SAME - A light-emitting module (06-04-2009
20080238299NANODOT ELECTROLUMINESCENT DIODE OF TANDEM STRUCTURE AND METHOD FOR FABRICATING THE SAME - A nanodot electroluminescent diode is disclosed. The nanodot electroluminescent diode comprises a lower electrode, an upper electrode, and unit cells interposed between the electrodes, wherein the unit cells comprise a quantum dot electroluminescent layer and also include an organic layer and/or an inorganic layer in addition to the quantum dot electroluminescent layer. The disclosed nanodot electroluminescent diode provides high efficiency, stability, and high luminance, and mixed colors, multi-colors, full color, and white electroluminescence can be obtained.10-02-2008
20120267999HALOPHOSPHATE PHOSPHOR AND WHITE LIGHT-EMITTING DEVICE - The present invention provides a blue (blue-green) phosphor that has sufficient emission intensity in the wavelength region around 490 nm and that has high emission luminance at a temperature region reached during LED operation. The present invention also provides a white light-emitting device that uses a high-luminance green phosphor having an emission peak wavelength of 535 nm or greater and that has improved bright blue reproducibility.10-25-2012
20080203900LED White Source with Improved Color Rendering - A light source that generates light having an output optical spectrum is disclosed. The light source includes first and second LEDs and a layer of phosphor that is excited by light from the first LED. The layer of phosphor is positioned to convert a portion of the light from the first LED in a first LED optical spectrum to light having a phosphor spectrum. The second LED emits light in a second LED optical spectrum. The first and second LEDs are powered such that the output optical spectrum includes the first and second optical spectrums and the phosphor spectrum such that the output spectrum is more constant as a function of wavelength at wavelengths between 450 nm to 650 nm than the first or second optical spectrums or the phosphor spectrum. The invention can provide a white LED light source with improved color rendering.08-28-2008
20080203901ORGANIC COMPOUNDS FOR ADJUSTING PHOSPHOR CHROMATICITY - Various phosphor compositions and organic compounds can be used in fluorescent layers for scanning beam displays. In general, one aspect of the subject matter described in this specification can be embodied in method of adjusting an emission spectrum of a phosphor material used in a display system that includes a fluorescent layer that absorbs an excitation light at a single wavelength and emits visible light. The method includes generating a binder mixture by combining one or more non-phosphor organic compounds with a binder material, wherein the binder mixture substantially transmits the excitation light and substantially absorbs a portion of the emission spectrum of the phosphor material. The method also includes combining the binder mixture with the phosphor material.08-28-2008
20100283382White light emitting device - A white light emitting device including: a blue light emitting diode (LED); a green silicate phosphor formed on the blue LED; and a red sulfide phosphor with a surface coated with a silicone oxide layer, the red sulfide phosphor formed on the blue LED.11-11-2010
20110031874LIGHT EMITTING APPARATUS - A red nitride phosphor of formula (I) or (II), and two green phosphors of formulas (III) and/or (IV) are included.02-10-2011
20110254435PHOSPHORS AND WHITE LIGHT ILLUMINATION DEVICES UTILIZING THE SAME - Disclosed are compositions and synthetic methods of phosphors that can be efficiently excited by blue light. The wavelength of the blue light is between 400 nm to 480 nm. The phosphors contain garnet fluorescent material activated with cerium, which contain Ba, Y, Tb, Lu, Sc, La, Gd, Sm, or combinations thereof, and Al, Ga, In, or combinations thereof. In addition, the phosphors are easily and quickly prepared in a large amount. The phosphors have high thermal stability and high emission intensity, therefore, being high of value in industry for utilization.10-20-2011
20110080086WHITE-LIGHT EMITTING DEVICE AND PREPARATION METHOD AND APPLICATION OF THE SAME - A white-light emitting device and its preparation method are provided. The white-light emitting device comprises an ultraviolet (UV) light emitting diode (LED) chip, a first phosphor, and a second phosphor, wherein the UV LED chip generates a first radiation; the first phosphor is composed of Zn(C04-07-2011
20110095676ORANGE-RED PERSISTENT PHOSPHORS - Orange-red phosphors activated by europium and rare earth ions of formula I and formula II are long persistent, stable, and non-toxic04-28-2011
20100079059Solid State Lighting Devices Including Light Mixtures - A solid state lighting apparatus includes a plurality of light emitting diodes (LEDs) including at least a first LED and a second LED. Chromaticities of the first and second LEDs are selected so that a combined light generated by a mixture of light from the pair of LEDs has about a target chromaticity. The first LED may include a first LED chip that emits light in the blue portion of the visible spectrum and a phosphor that emits red light in response to blue light emitted by the first LED chip. The second LED emits light having a color point that is above the planckian locus of a 1931 CIE Chromaticity diagram, and in particular may have a yellow green, greenish yellow or green hue.04-01-2010
20100060144TRI-COLOR WHITE LIGHT LED LAMP - The invention relates to a tri-color lamp for generating white light comprising a phosphor composition comprising a phosphor of general formula (Ba03-11-2010
20080218060PHOSPHOR, LIGHT EMITTING DEVICE USING PHOSPHOR, AND DISPLAY AND LIGHTING SYSTEM USING LIGHT EMITTING DEVICE - A phosphor (A) comprising a host material composed of a compound having a garnet crystal structure represented by the general formula (I):09-11-2008
20100176715QUANTUM DOT WHITE AND COLORED LIGHT-EMITTING DEVICES - A light-emitting device comprising a population of quantum dots (QDs) embedded in a host matrix and a primary light source which causes the QDs to emit secondary light and a method of making such a device. The size distribution of the QDs is chosen to allow light of a particular color to be emitted therefrom. The light emitted from the device may be of either a pure (monochromatic) color, or a mixed (polychromatic) color, and may consist solely of light emitted from the QDs themselves, or of a mixture of light emitted from the QDs and light emitted from the primary source. The QDs desirably are composed of an undoped semiconductor such as CdSe, and may optionally be overcoated to increase photoluminescence.07-15-2010
20110148286INORGANIC LIGHT-EMITTING DEVICE - The present invention relates to an inorganic light-emitting device, and more particularly, to an inorganic light emitting device having superior mechanical strength and a long lifespan, and which is capable of maintaining uniform and high efficiency of light emission, and has transparent and flexible characteristics. The inorganic light emitting device of the present invention includes a first electrode, a fluorescent layer formed on the first electrode, and which includes a plurality of nanowires made of inorganic light-emitting materials, and a second electrode formed on the fluorescent layer. The fluorescent layer is coated with the plurality of nanowires.06-23-2011
20100019655PHOSPHOR FOR WHITE LIGHT-EMITTING DEVICE AND WHITE LIGHT-EMITTING DEVICE INCLUDING THE SAME - Provided are an alkaline earth metal silicate-based phosphor which is a compound represented by Formula 1 below, and a white light-emitting device (LED) including the same:01-28-2010
20090174310White Light Phosphors for Fluorescent Lighting - Materials suitable for use in highly energy-efficient production of white light through photo-luminescence, such as in light emitting devices, are generally provided. A composition comprising a compound having the formula:07-09-2009
20090174309LIGHT EMITTING DEVICE WITH A AT LEAST ONE CERAMIC SPHERICAL COLOR CONVERTER MATERIAL - The invention relates to a light emitting device comprising at least one light source and at least one ceramic spherical color converter material, which helps to ease the manufacture as well as to improve the luminescence properties of the light emitting device.07-09-2009
20090085467Yellow Emitting Ce3+ Doped Calcium Silicate Phosphor and White Light Emitting Diodes Including Ce3+ Doped Calcium Silicate Phosphor - The present invention is directed to phosphors and white light emitting diodes and a method for preparing a Ce04-02-2009
20120146486Phosphors and Light-Emitting Devices Using the Same - The present invention relates to novel phosphors, which are represented by a formula of (A06-14-2012
20110304261NITRIDOSILICATES CO-DOPED WITH ZIRCONIUM AND HAFNIUM - The invention relates to compounds of the formula (I) Ma12-15-2011
20120306356FLUORESCENT SUBSTANCE, LIGHT EMITTING DEVICE, SURFACE LIGHT SOURCE DEVICE, DISPLAY DEVICE AND ILLUMINATING DEVICE - There is provided a phosphor having a β-type Si12-06-2012
20120306355METHODS OF DETERMINING AND MAKING RED NITRIDE COMPOSITIONS - Provided according to embodiments of the invention are methods of making a Ca12-06-2012
20120306354COATED PHOSPHORS AND LIGHT EMITTING DEVICES INCLUDING THE SAME - Provided according to embodiments of the invention are method of coating a phosphor that include contacting the phosphor with a sol comprising at least one of silica, alumina, borate and a precursor thereof, to form a coating on the phosphor; and heating the phosphor. Also provided are phosphors that are coated with alumina, silica and/or borate, and light emitting devices that include such phosphors.12-06-2012
20090146548Device for Illuminating Using Blue, Green, Yellow, or Red Light Emitting Diodes - The invention relates to an apparatus for illumination with blue, green, yellow or red light-emitting diodes (LEDS), comprising one or more coloured LEDs and a light-scattering cover associated with the LED colour and composed of coloured plastic and having a base colour derived from one or more non-fluorescent dyes, characterized in that the light-scattering cover comprises, in addition to the base colour, at least one fluorescent dye associated in terms of colour with the base colour, where the dye mixture has been adjusted in such a way that the reflectance of the light-scattering cover is at least 28% at the wavelength of the energy maximum of the LED(S) used, where, based on the standard chromaticity diagram and on the colour loci of the reflected light from the light-scattering cover and on the colour locus of the LED(s) used, the following alternative relationship applies to the absolute value of the difference between the x value of the light-scattering cover and the x value of the LED and the absolute value of the difference between the y value of the light-scattering cover and the y value of the LED: 06-11-2009
20110089817KIMZEYITE GARNET PHOSPHORS - A phosphor of formula I is included in a phosphor composition in a lighting apparatus capable of emitting white light,04-21-2011
20090001872ZINC OXIDE THIN FILM ELECTROLUMINESCENT DEVICES - A thin film electro-luminescent device (TFEL) includes an active layer made of a direct bandgap semiconductor material, e.g. zinc oxide, doped with exciton binding centers, such as aluminum, in small amounts, e.g. 0.001 at % to 30.0 at %. The exciton binding centers prevent free excitons, created by impact ionization, from diffusing toward and recombining at native defect centers. To provide a columnar structure, a polycrystalline seed layer is deposited first to provide a template, followed by the deposition of an overlying layer forming columns in accordance with the template.01-01-2009
20080272688Phosphor and Method of preparing the same as well as semiconductor light-emitting device and image display - A β-sialon phosphor containing an optical active element M, having a specific surface area of not more than 0.8 m11-06-2008
20110109222LIGHT EMITTING DEVICE, AND BACKLIGHT, LIQUID CRYSTAL DISPLAY DEVICE AND ILLUMINATION DEVICE USING THE SAME - A light emitting device 05-12-2011
20110109221OXYNITRIDE PHOSPHOR, METHOD OF PREPARING OXYNITRIDE PHOSPHOR, AND WHITE LIGHT EMITTING DEVICE INCLUDING THE OXYNITRIDE PHOSPHOR - An oxynitride phosphor including: a compound represented by Formula 1:05-12-2011
20120043879OPTOELECTRONIC FILM ASSEMBLY - An optoelectronic film assembly, has a first flat electrode layer, a second flat electrode layer as a counter electrode to the first flat electrode layer, a dielectric layer between the electrode layers and an active layer provided next to the dielectric layer and arranged between the electrode layers and made of an electroluminescent material. To this end, the first and/or the second electrode layers are implemented to be translucent and TCO-free, particularly ITO-free, by using a woven fabric comprising electrically conductive fibers.02-23-2012
20110050089PHOSPHOR AND IMAGE DISPLAYING DEVICE EMPLOYING THE SAME - The present invention provides a red-emitting phosphor emitting luminescence of excellent color purity with high efficiency under the excitation with near UV light, and it also provides a color image displaying device employing that phosphor. This phosphor comprises an ARS03-03-2011
20100096977AC LIGHT EMITTING DEVICE WITH LONG-PERSISTENT PHOSPHOR AND LIGHT EMITTING DEVICE MODULE HAVING THE SAME - Disclosed are an AC light emitting device with a long-persistent phosphor and an AC light emitting device module having the same. According to an exemplary embodiment of the present invention, the light emitting device includes a first light emitting diode chip and a second light emitting diode chip, each of which has a plurality of light emitting cells on a single substrate. Further, a first long-persistent phosphor is positioned on the first light emitting diode chip to perform wavelength conversion for a portion of light emitted from the first light emitting diode chip; and a second long-persistent phosphor is positioned on the second light emitting diode chip to perform wavelength conversion for a portion of light emitted from the second light emitting diode chip. The afterglow luminescence resulted from the second long-persistent phosphor is allowed to be different from that resulted from the first long-persistent phosphor, whereby a flicker effect of the AC light emitting device can be more alleviated.04-22-2010
20100164366Luminescent materials for a carbon nanotube (cnt) field emission device (fed) - A RGB phosphor system for a carbon nanotube (CNT)/field emission device (FED) display operated between about 4-10 kV. The RGB phosphor system is formed on an interior surface of a screen of the CNT/FED display. The RGB phosphor system includes ZnS:Cu, Al (green phosphor), ZnS:Ag,Cl (blue phosphor) and Y07-01-2010
20100052515ALLOY POWDER FOR AW MATERIAL OF INORGANIC FUNCTIONAL MATERIAL AND PHOSPHOR - The present invention relates to a phosphor comprising a nitride or an oxynitride, comprising an X-ray powder diffraction pattern comprising at least one Region having at least one peak with an intensity ratio I of 8% or less, the X-ray powder diffraction pattern measured in the 2θ range from 10° to 60° using a CuKα line (1.54184 {acute over (Å)}), wherein the Region is the 2θ range from 41.5° to 47°, the intensity of each peak is a value obtained after background correction, and the intensity ratio I is defined by the formula (I03-04-2010
20110156575Display Device with Quantum Dot Phosphor and Manufacturing Method Thereof - A display device and a method of manufacturing the same are provided. The display device includes an illuminate unit and a color filter. The illuminate unit has a light-emitting chip and a plurality of quantum dot phosphors for generating a color light which has an optical spectrum including the first blue peak wavelength, a first green peak wavelength, and a first red peak wavelength. The color filter is disposed in the light path of the color light, wherein the color filter has a transmittance spectrum having a second blue peak wavelength, a second green peak wavelength, and a second red peak wavelength. The first blue peak wavelength, the first green peak wavelength, and the first red peak wavelength respectively match the second blue peak wavelength, the second green peak wavelength, and the second red peak wavelength in order to enhance the color performance of the display device.06-30-2011
20120056528FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME - The fluorescent substance according to the embodiment is generally represented by (M03-08-2012
20120056527LIGHT EMITTING DEVICE - A light emitting device according to one embodiment includes a board; a light emitting element mounted on the board, emitting light having a wavelength of 250 nm to 500 nm; a red fluorescent layer formed on the element, including a red phosphor expressed by equation (1), having a semicircular shape with a diameter r;03-08-2012
20120062105SILICON CARBIDONITRIDE BASED PHOSPHORS AND LIGHTING DEVICES USING THE SAME - Disclosed herein are novel families of silicon carbidonitride phosphor compositions. In certain embodiments, optimal ranges of carbon content have been identified which provide excellent luminescence and thermal stability characteristics.03-15-2012
20120007494PHOSPHOR COMPOSITION AND LIGHT EMITTING DEVICE USING THE SAME - Disclosed herein are phosphor compositions which can exhibit a broad emission spectrum and improved color rendering index (CRI) relative to conventional phosphor materials. The phosphor compositions may, in some embodiments, be represented by the Formula I: (RE01-12-2012
20120013243Phosphor composition for AC LEDS and AC LED manufactured with the same - The present invention provides a phosphor composition for AC LEDs, which is represented by the following formula (I):01-19-2012
20080258604SYSTEMS AND METHODS FOR LIGHT ABSORPTION AND FIELD EMISSION USING MICROSTRUCTURED SILICON - Methods and systems for absorbing infrared light, and for emitting current are described. A sample, such as a sample containing mainly silicon, is microstructured by at least one laser pulse to produce cone-like structures on the exposed surface. Such microstructuring enhances the infrared absorbing, and current emission properties of the sample.10-23-2008
20100283383PHOSPHOR, LIGHT EMITTING DEVICE USING PHOSPHOR, AND DISPLAY AND LIGHTING SYSTEM USING LIGHT EMITTING DEVICE - A phosphor (A) comprising a host material composed of a compound having a garnet crystal structure represented by the general formula (I):11-11-2010
20090153028Fluorescent substance, method for manufacturing the same and image display device - A fluorescent substance includes a crystal of nitride or oxy-nitride having a β-type Si06-18-2009
20120206035LIGHT-EMITTING ELEMENT - Provided is a light-emitting element with high external quantum efficiency, or a light-emitting element with a long lifetime. The light-emitting element includes, between a pair of electrodes, a light-emitting layer including a guest material and a host material, in which an emission spectrum of the host material overlaps with an absorption spectrum of the guest material, and phosphorescence is emitted by conversion of an excitation energy of the host material into an excitation energy of the guest material. By using the overlap between the emission spectrum of the host material and the absorption spectrum of the guest material, the energy smoothly transfers from the host material to the guest material, so that the energy transfer efficiency of the light-emitting element is high. Accordingly, a light-emitting element with high external quantum efficiency can be achieved.08-16-2012
20120062106RED LIGHT-EMITTING FLOURESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME - The embodiment provides a red light-emitting fluorescent substance represented by the following formula (1):03-15-2012
20090033206Graded Junction Silicon Nanocrystal Embedded Silicon Oxide Electroluminescence Device - A silicon (Si) nanocrystal embedded Si oxide electroluminescence (EL) device and associated fabrication process are presented. The method provides a substrate bottom electrode, and forms a plurality of Si nanocrystal embedded SiOx film layers overlying the bottom electrode, where X is less than 2. Each SiOx film layer has a Si excess concentration in a range of about 5 to 30%. The outside film layers sandwich an inner film layer having a lower concentration of Si nanocrystals. Alternately stated, the outside Si nanocrystal embedded SiOx film layers have a higher electrical conductivity than a sandwiched inner film layer. A transparent top electrode is formed over the plurality of Si nanocrystal embedded SiOx film layers. The plurality of Si nanocrystal embedded SiOx film layers are deposited using a high density plasma-enhanced chemical vapor deposition (HD PECVD) process. The HD PECVD process initially deposits SiOx film layers, which are subsequently annealed.02-05-2009
20090134777ELECTRON EMISSION DEVICE AND LIGHT EMISSION APPARATUS INCLUDING THE SAME - An electron emission device and a light emission apparatus including the same are provided. The electron emission device and the light emission apparatus including the same have a local dimming capability. The electron emission device includes a substrate; first electrodes spaced apart from one another and extending in a first direction on the substrate; second electrodes disposed between the first electrodes and extending in parallel with the first electrodes; a plurality of third electrodes electrically insulated from the first electrodes and the second electrodes, and extending in a direction crossing the first direction; and first electron emission units and second electron emission units, which are respectively formed on side surfaces of the first electrodes and the second electrodes.05-28-2009
20090134776ELECTROLUMINESCENCE ELEMENT AND DISPLAY DEVICE - The electroluminescent element includes a first electrode, a first dielectric layer formed on the first electrode, a second dielectric layer formed opposed to the first dielectric layer, a second electrode formed on the second dielectric layer, a phosphor layer sandwiched between the first dielectric layer and the second dielectric layer, and a photoelectric conversion layer that generates electron-hole pairs by light from the phosphor layer, the photoelectric conversion layer being sandwiched between the first dielectric layer and the second dielectric layer. At least one of the first electrode and the second electrode is transparent or translucent.05-28-2009
20090134775ALLOY POWDER FOR AW MATERIAL OF INORGANIC FUNCTIONAL MATERIAL AND PHOSPHOR - The present invention provides an alloy powder that is a material for producing inorganic functional materials such as phosphors, a phosphor with high brightness, and a method for producing the phosphor. An alloy powder for an inorganic functional material precursor contains at least one metal element and at least one activating element M05-28-2009
20120119641OUTPUT EFFICIENCY OF ORGANIC LIGHT EMITTING DEVICES - The invention provides methods and materials suitable for increasing the output efficiency of light emitting diodes (LEDs), particularly organic LEDs (OLEDs). In one embodiment, for example, there is described a method for providing a porous coating over an OLED stack. The porous coating reduces optical loss and improves light extraction efficiency from the OLED device.05-17-2012
20110115366Light source having phosphor including divalent, trivalent and tetravalent elements - A phosphor having an excitation band relative to lights in the wide range of wavelengths from ultraviolet to visible light, and having an emission spectrum in the red range and so on, with a wide half value width, and an LED and a light source using the phosphor and emitting white and other color lights with good color rendering properties are provided. Powdered raw materials of Ca05-19-2011
20100289405Light-emitting device and manufacturing method thereof - A light-emitting device of the present invention includes: a light-emitting element; and a phosphor layer containing phosphors that absorb light from the light-emitting element and wavelength-convert the absorbed light to emit light. The phosphor layer has a structure in which the phosphors are disposed on an applied adhesive with a thickness equal to or less than an average particle size of the phosphors. A thickness of the phosphor layer is equal to or less than five times the average particle size of the phosphors, and an occupancy ratio of the phosphors in the phosphor layer is 50% or more. Further, the phosphors disposed on the adhesive has an adjusted particle size.11-18-2010
20100289404Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor - An oxynitride phosphor consisting of a crystal containing at least one or more of Group II elements selected from the group consisting of Be, Mg, Ca, Sr, Ba and Zn, at least one or more of Group IV elements selected from the group consisting of C, Si, Ge, Sn, Ti, Zr and Hf, and a rare earth element being an activator R, thereby providing a phosphor which is excited by an excitation light source at an ultraviolet to visible light region and which has a blue green to yellow luminescence color that is wavelength converted.11-18-2010
20100289403Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor - An oxynitride phosphor consisting of a crystal containing at least one or more of Group II elements selected from the group consisting of Be, Mg, Ca, Sr, Ba and Zn, at least one or more of Group IV elements selected from the group consisting of C, Si, Ge, Sn, Ti, Zr and Hf, and a rare earth element being an activator R, thereby providing a phosphor which is excited by an excitation light source at an ultraviolet to visible light region and which has a blue green to yellow luminescence color that is wavelength converted.11-18-2010
20120126687NITRIDE PHOSPHOR AND MANUFACTURING METHOD THEREOF, AND LIGHT EMITTING DEVICE USING THE SAME - A phosphor and a manufacturing method thereof, and the light emitting device using the same are provided, wherein the composition formula of the phosphor is I05-24-2012
20100213822PHOSPHOR AND PRODUCTION METHOD THEREOF, CRYSTALLINE SILICON NITRIDE AND PRODUCTION METHOD THEREOF, PHOSPHOR-CONTAINING COMPOSITION, AND LIGHT EMITTING DEVICE, DISPLAY AND ILLUMINATING DEVICE USING THE PHOSPHOR - In order to improve quantum efficiency and/or durability of phosphors, a complex oxynitride phosphor is provided represented by the following formula, which can be obtained by firing a phosphor precursor in the presence of flux.08-26-2010
20100237768LUMINESCENT MATERIAL, LUMINESCENT MATERIAL COMPLEX AND METHOD OF MANUFACTURING THE SAME, FLUORESCENT LABELING REAGENT AND METHOD OF MANUFACTURING THE SAME, AND LIGHT EMITTING ELEMENT - A light emitting element, includes: a luminescent material which is obtained from a plant-derived material as a raw material, and which contains therein a silicon oxide containing therein silicon having a content rate of 40 wt. % or more, and oxygen having a content rate of 40 wt. % or more as a principal component; a fluorescent substance adsorbed on a surface of the luminescent material; and an energy source for exciting the luminescent material and the fluorescent substance.09-23-2010
20100207512METHOD OF FABRICATING TRANSLUCENT PHOSPHOR CERAMICS - One embodiment provides a method for fabricating a translucent phosphor ceramic compact comprising: heating a precursor powder to at least about 1000° C. under a reducing atmosphere to provide a pre-conditioned powder, forming an intermediate compact comprising the pre-conditioned powder and a flux material, and heating the intermediate compact under a vacuum to a temperature of at least about 1400° C. In another embodiment, the compact may be a cerium doped translucent phosphor ceramic compact comprising yttrium, aluminum, oxygen, and cerium sources. Another embodiment may be a light emitting device having the phosphor translucent ceramic provided as described herein.08-19-2010
20120313507beta-SIALON, METHOD FOR MANUFACTURING THE SAME, AND LIGHT-EMITTING DEVICE - A method for manufacturing β-sialon, including: a mixing process wherein at least one of aluminum oxide and silicon oxide, silicon nitride, aluminum nitride, and europium compound are mixed; a burning process wherein the mixture having undergone the mixing process is heated at the temperature hither than 1950° C. but not exceeding 2200° C. for 10 hours or longer; and a heat treatment process wherein heat treatment is conducted after the burning process at the temperature from 1300° C. to 1600° C. in an atmosphere of inert gas other than nitrogen at the partial pressure of 10 kPa or lower.12-13-2012
20090058266Fabrication of a Semiconductor Nanoparticle Embedded Insulating Film Luminescence Device - A method is provided for fabricating a semiconductor nanoparticle embedded Si insulating film for short wavelength luminescence applications. The method provides a bottom electrode, and deposits a semiconductor nanoparticle embedded Si insulating film, including the element of N, O, or C, overlying the bottom electrode. After annealing, a semiconductor nanoparticle embedded Si insulating film has a peak photoluminescence (PL) at a wavelength in the range of 475 to 750 nanometers.03-05-2009
20090058264NANOCRYSTAL-METAL OXIDE COMPOSITES AND PREPARATION METHOD THEREOF - Disclosed herein are nanocrystal-metal oxide composites. The composites comprise nanocrystals and a metal oxide bound to the nanocrystals wherein the metal oxide has organic groups. The composites are stable to mechanical stress and exhibit improved processability. Also disclosed herein is a method for preparing the composites.03-05-2009
20090058263WHITE LIGHT EMITTING DEVICE AND METHOD FOR MAKING SAME - A white light emitting device and a method for making the same are provided. The white light emitting device includes a light emitting diode (LED) chip, a fluorescent layer and a reflective layer. The LED chip includes a substrate and a light emitting structure formed on the substrate. The LED chip has a plurality of side walls. The light emitting structure includes a first-type semiconductor layer, an active layer and a second-type semiconductor layer arranged in that order along a direction away from the substrate. The substrate has through hole formed therethrough and the first-type semiconductor layer is partially exposed. The fluorescent layer is formed in the through hole for wavelength conversion. The reflective layer is formed on the side walls and surrounds the LED chip.03-05-2009
20090058261CARBAZOLE DERIVATIVE, AND LIGHT EMITTING ELEMENT MATERIAL, LIGHT EMITTING ELEMENT, AND ELECTRONIC APPLIANCE OBTAINED USING THE SAME - An object is to provide a carbazole derivative that is useful as a raw material in manufacturing a light emitting element material having resistance to repetition of an oxidation reaction. The carbazole derivative is represented by General Formula (1) in the following. In General Formula (1), R03-05-2009
20120169214NANO-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
20080211386LIGHT EMITTING DEVICE - Disclosed herein is a light emitting device. The light emitting device includes a light emitting diode disposed on a substrate to emit light of a first wavelength. A transparent molding part encloses the LED, a lower wavelength conversion material layer is disposed on the transparent molding part, and an upper wavelength conversion material layer is disposed on the lower wavelength conversion material layer. The lower wavelength conversion material layer contains a phosphor converting the light of the first wavelength into light of a second wavelength longer than the first wavelength, and the upper wavelength conversion material layer contains a phosphor converting the light of the first wavelength into light of a third wavelength, which is longer than the first wavelength but shorter than the second wavelength. Light produced via wavelength conversion is prevented from being lost by the phosphor. Light emitting devices including a multilayer reflection mirror are also disclosed.09-04-2008
20120176026(OXY) NITRIDE PHOSPHOR, WHITE LIGHT-EMITTING DEVICE INCLUDING THE (OXY) NITRIDE PHOSPHOR, METHOD OF PREPARING PHOSPHOR, AND NITRIDE PHOSPHOR PREPARED BY THE METHOD - Provided is an (oxy)nitride phosphor, which is a compound represented by Formula 1 below:07-12-2012
20120176025Organic Light Emitting Display Apparatus and Method of Manufacturing the Same - An organic light emitting display apparatus using a micro cavity method comprises a first sub pixel, a second pixel and a third pixel, each of which emits different color from an emission layer interposed between two electrodes. The first sub pixel, the second sub pixel and the third sub pixel form a unit pixel. Emission layers of the first and second sub pixels are formed so as to have the same pattern throughout the first and second sub pixels, and an emission layer of the third sub pixel is formed so as to have a pattern separate from the first and second sub pixels. In this structure, three-colored emission layers may be formed using two mask processes so that productivity is improved due to process simplification, and high-resolution is realized due to a decrease in the distance between deposited patterns.07-12-2012
20100270911CARBON NANOTUBE FILM, CARBON NANOTUBE FILM PRECURSOR, METHOD FOR MANUFACTURING THE SAME AND A LIGHT SOURCE - A carbon nanotube film includes a plurality of successively oriented carbon nanotubes joined end-to-end by Van der Waals attractive force therebetween. The carbon nanotubes define a plurality of first areas and a plurality of second areas. The first areas and the second areas have different densities of carbon nanotubes. A method for manufacturing the same is also provided. A light source using the carbon nanotube film is also provided.10-28-2010
20120181919Luminescent Ceramic Composite Converter and Method of Making the Same - A luminescent converter for a light emitting element (e.g., LED) includes a transparent, sol-gel-derived ceramic matrix having particles of at least one type of phosphor embedded therein that change a wavelength of the input light to light that has a different wavelength. The ceramic matrix is 20-80% porous with a majority of the pores having a diameter in a range of 2-20 nm. A method of making this converter includes preparing a sol-gel ceramic matrix embedded with the particles of phosphor in the matrix, and drying the matrix at no more than 600° C. to form the converter.07-19-2012
20120187824WHITE LIGHT EMITTING LAMP AND WHITE LED LIGHTING APPARATUS INCLUDING THE SAME - An object is to provide a white light emitting lamp in which a BGR phosphor containing blue, green and red phosphor is combined with a semiconductor light emitting element such as an LED, a deep red phosphor having a main emission peak in a longer wavelength region than a main emission peak of the red phosphor is further added so as to enhance characteristics, whereby both high luminance and high color rendering properties can be obtained. This invention provides a white light emitting lamp 07-26-2012
20120187823LED LIGHTING ARRANGEMENT INCLUDING LIGHT EMITTING PHOSPHOR - An optical component for an LED lighting arrangement comprises: a transparent material having a concave surface and a coating of one or more photoluminescent (phosphor) materials on a part of the concave surface. The phosphor material emits photoluminescent light when illuminated by light of a wavelength in range 300 to 500 nm. The component can comprise a spherical shell, a hollow cylinder or a hemispherical shell and the phosphor material coating is provided on the inner concave surface of the component. The optical component can comprise a lens, an optical window or a waveguide.07-26-2012
20120299466COLOR STABLE MANGANESE-DOPED PHOSPHORS - A lighting apparatus capable of emitting white light includes a semiconductor light source; and a phosphor material radiationally coupled to the light source. The phosphor material includes a color-stable Mn11-29-2012
20100327734LUMINESCENT MATERIAL - A luminescent material is provided, which includes a compound having a composition represented by the following general formula (A):12-30-2010
20080297031Method of manufacturing phosphor, light-emitting device, and image display apparatus - A method of manufacturing a first phosphor of which emission spectrum shape well matches with a color filter of three primary colors of light, a light-emitting device including the first phosphor, and an image display apparatus including the light-emitting device are provided. The light-emitting device includes a semiconductor light-emitting element emitting excitation light and the first phosphor absorbing the excitation light and emitting green light. The first phosphor contains a solid solution of aluminum element and a metal element M selected from the group consisting of Mn, Ce and Eu in crystals of an oxynitride having a β-type Si12-04-2008
20110037380PHOSPHOR COMPOSITION WITH SELF-ADJUSTING CHROMATICITY - Disclosed herein are “smart” phosphor compositions capable of regulating the chromaticity of their emission to substantially constant values even with variations in the excitation radiation they receive to induce photoluminescence. One phosphor of the smart composition demonstrates an increase in emission intensity increases as the wavelength of the excitation radiation is increased. The other phosphor shows a decrease in emission intensity with increasing excitation wavelength. Constant chromaticity in this context is defined as a change in CIE x or y coordinate of less than about five percent over a 10 nm range of excitation wavelengths.02-17-2011
20120319565WHITE SEMICONDUCTOR LIGHT EMITTING DEVICE - The invention aims at providing controllable parameters that are correlated with special color rendering index R9, and at providing a white light-emitting semiconductor device having a high R9 value obtained through optimization of such parameters.12-20-2012
20120081001Green Emitting Phosphor - A green emitting phosphor is provided, allowing the internal quantum efficiency to be increased. The green emitting phosphor comprises a mother crystal containing Sr, Ga and S, and a luminescent center, characterized in that, in an XRD pattern, the ratio of the diffraction intensity of the maximum peak appearing at diffraction angle 2θ=14 to 20° over the diffraction intensity of the maximum peak appearing at diffraction angle 2θ=21 to 27° is 0.4 or greater.04-05-2012
20100231121METHOD FOR PRODUCING INORGANIC COMPOUND, PHOSPHOR, PHOSPHOR-CONTAINING COMPOSITION, LIGHT-EMITTING DEVICE, LIGHTING SYSTEM, AND DISPLAY DEVICE - A method for producing a CASN phosphor which has an emission peak wavelength in a long wavelength range and which is prevented from being reduced in emission peak intensity, a phosphor suitable for use in displays having a NTSC ratio higher than that of conventional one, a composition containing the phosphor, a light-emitting device containing the phosphor, a display, and a lighting system. A method for producing an inorganic compound represented by the following formula from a feedstock in which the amount of Si is greater than one mole and less than 1.14 moles per mole of Al:09-16-2010
20120319566LI-CONTAINING alpha-SIALON-BASED PHOSPHOR PARTICLE, PRODUCTION METHOD THEREOF, LIGHTING DEVICE, AND IMAGE DISPLAY DEVICE - An Li-containing α-sialon phosphor particle by mixing a silicon nitride or nitrogen-containing silicon compound powder, an AlN-containing aluminum source, an Li source and an Eu source, firing the mixture at 1,500 to 1,800° C. in a nitrogen-containing inert gas atmosphere under atmospheric pressure to obtain a lithium-containing α-sialon powder working out to a starting material, adding and mixing an additional lithium source to the powder, and re-firing the obtained mixture at a temperature lower than the above firing temperature or at a temperature of 1,100° C. to less than 1,600° C., at 1,100° C. to less than 1,600° C., in a nitrogen-containing inert gas atmosphere under atmospheric pressure.12-20-2012
20090236971See-through Display apparatus - A see-through display apparatus includes a first substrate having a plurality of first electrodes on its upper surface, a second substrate having a plurality of second electrodes on its bottom surface. The first electrodes and the second electrodes are alternative arrangement so that a plurality of crossing areas is formed. Each crossing area forms a pixel area and has at least one electric-excited area thereon. The electric-excited areas are alternated with the transparent areas and the see-through rate of the pixel area is ranged in a predetermined range so that the display apparatus has a see-through property.09-24-2009
20120286647Phosphor converted LED - The invention is directed to a light emitting comprising a blue emitting LED, a first phosphor layer exited at the emitting wavelength of the LED, which phosphor has an emission wavelength within a range of between 500 nm and 560 nm, and a second phosphor layer having a color point u′ in the range between 0.24 and 0.35 and a peak emission of the phosphor layer of λp>600 nm of the emission spectra, especially a pcLED comprising a combination of a green emitting luminescent ceramic material and a second phosphor material having a broad emission spectra. The second phosphor material can comprise a compound of the general formula M11-15-2012
20100187975OPTICAL MEMBER AND DISPLAY DEVICE - An optical member realizing suppressed occurrence of a light loss between a phosphor layer performing color conversion and itself, and a display device using the same is provided. The optical member includes a base member having two opposed surfaces, and a phosphor layer provided integrally with one surface of the base member and containing a phosphor that converts a color light to another color light.07-29-2010
20130009541LED LIGHTING DEVICE HAVING A PHOSPHOR COMPOSITION - There is herein described a phosphor composition for converting the light emitted from LED dies. The phosphor composition has an emission dominant wavelength responsive to an excitation dominant wavelength. The phosphor composition includes a first phosphor, a second phosphor and a third phosphor. The phosphor composition has a first weight ratio of the first phosphor and the second phosphor, and a second weight ratio of the second phosphor and the third phosphor. The first and second weight ratios are arranged so that the emission dominant wavelength increases as the excitation dominant wavelength increases.01-10-2013
20130020932Lighting Device - One object is to provide a lighting device having a large irradiation range at low cost. One object is to provide a lighting device with improved light extraction efficiency at low cost. The lighting device includes a light-transmitting base, a first light-transmitting electrode formed over almost the whole area of a surface of the light-transmitting base, an EL layer over the first light-transmitting electrode, and a second electrode over the EL layer. The light-transmitting base has a cylindrical shape, a conical shape, a prismatic shape, or a pyramidal shape whose bottom surface is the surface of the light-transmitting base.01-24-2013
20130020930YELLOW-GREEN TO YELLOW-EMITTING PHOSPHORS BASED ON HALOGENATED-ALUMINATES - Disclosed herein are yellow-green and yellow-emitting aluminate based phosphors for use in white LEDs, general lighting, and LED and backlighting displays. In one embodiment of the present invention, the cerium-activated, yellow-green to yellow-emitting aluminate phosphor comprises the rare earth lutetium, at least one alkaline earth metal, aluminum, oxygen, at least one halogen, and at least one rare earth element other than lutetium, wherein the phosphor is configured to absorb excitation radiation having a wavelength ranging from about 380 nm to about 480 nm, and to emit light having a peak emission wavelength ranging from about 550 nm to about 600 nm.01-24-2013
20130020931WHITE LIGHT EMITTING DEVICE, AND DISPLAY APPARATUS AND ILLUMINATION APPARATUS USING THE SAME - A white light emitting device includes a blue light emitting diode (LED) emitting blue light, a yellow phosphor excited by the blue light to emit yellow light, and selected from the group consisting of Y01-24-2013
20080252198Red Fluorescence Conversion Medium, Color Conversion Substrate Using Same and Light-Emitting Device - A red fluorescence conversion medium including; a light-transmitting medium, a first perylene fluorescent dye that emits red fluorescence, and a second fluorescent dye that absorbs light in a ultraviolet to blue region to emit fluorescence, wherein the first perylene fluorescent dye absorbs light containing the fluorescence emitted by the second fluorescent dye to emit fluorescence.10-16-2008
20080231173ELECTRO-LUMINESCENT DEVICE AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing an electro-luminescent device includes forming an electrode on an insulating substrate, forming a dielectric layer over the electrode using a green sheet method and simultaneously curing the electrode and the dielectric layer.09-25-2008
20080231172Light emitting device using phosphor powder - The present invention is a light emitting device which uses a specific phosphor powder. The phosphor powder is a combination of cerium (Ce) and lithium aluminum oxide (LiAlO09-25-2008
20080231171Illumination System Comprising a Radiation Source and Fluorescent Material - The invention concerns an illumination system comprising a radiation source and a fluorescent material comprising at least one phosphor capable of absorbing part of the light emitted by the radiation source and emitting light of a wavelength different from that of the absorbed light; wherein said at least one phosphor is a yellow to red-emitting europium(II) activated halogeno-oxonitridosilicate of the general formula Ea09-25-2008
20080224598SOLID STATE WHITE LIGHT EMITTER AND DISPLAY USING SAME - A light emitting assembly comprising a solid state device coupleable with a power supply constructed and arranged to power the solid state device to emit from the solid state device a first, relatively shorter wavelength radiation, and a down-converting luminophoric medium arranged in receiving relationship to said first, relatively shorter wavelength radiation, and which in exposure to said first, relatively shorter wavelength radiation, is excited to responsively emit second, relatively longer wavelength radiation. In a specific embodiment, monochromatic blue or UV light output from a light-emitting diode is down-converted to white light by packaging the diode with fluorescent organic and/or inorganic fluorescers and phosphors in a polymeric matrix.09-18-2008
20080224597SOLID STATE WHITE LIGHT EMITTER AND DISPLAY USING SAME - A light emitting assembly comprising a solid state device coupleable with a power supply constructed and arranged to power the solid state device to emit from the solid state device a first, relatively shorter wavelength radiation, and a down-converting luminophoric medium arranged in receiving relationship to said first, relatively shorter wavelength radiation, and which in exposure to said first, relatively shorter wavelength radiation, is excited to responsively emit second, relatively longer wavelength radiation. In a specific embodiment, monochromatic blue or UV light output from a light-emitting diode is down-converted to white light by packaging the diode with fluorescent organic and/or inorganic fluorescers and phosphors in a polymeric matrix.09-18-2008
20080224596Inorganic 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
20130169147LED LIGHT BULB - In one embodiment, an LED light bulb includes an LED module, a base part on which the LED module is disposed, and a globe attached to the base part. The LED module includes an ultraviolet to violet light-emitting LED chip mounted on a substrate. A lighting circuit and a bayonet cap are provided at the base part. A phosphor screen emitting white light by absorbing the ultraviolet to violet light emitted from the LED chip is provided on an inner surface of the globe. The phosphor screen has a color in which a* is −10 or more and +10 or less, b* is 0 (zero) or more and +30 or less, and L* is +40 or more when a body color thereof is represented by an L*a*b* color system.07-04-2013
20080218059ELECTRON-EMITTING DEVICE, ELECTRON SOURCE, AND IMAGE-FORMING APPARATUS - An electron-emitting device comprises a pair of oppositely disposed electrodes and an electroconductive film arranged between the electrodes and including a high resistance region. The high resistance region has a deposit containing carbon as a principal ingredient. The electron-emitting device can be used for an electron source of an image-forming apparatus of the flat panel type.09-11-2008
20080315751Aryl-substituted conjugated polymers - Aryl-substituted conjugated polymers are described having improved properties. The polymers include a polymer backbone that includes heterocyclic repeat units. At least some of the heterocyclic repeat units have an aryl substituent attached thereto and at least some of these aryl substituents have a branched alkyl substituent attached thereto. The conjugated polymer are well-suited for use in a variety of electronic devices, including photovoltaic cells, light-emitting diodes, and transistors. Tunability of material, spectroscopic, and/or electronic properties is possible.12-25-2008
20130113364Luminophore and Light Source Containing such a Luminophore - A luminophore from the class of nitridic or oxynitridic luminophores with at least one cation M and an activator D, wherein a proportion x of the cation is replaced with Cu and D is at least one element from the series Eu, Ce, Sm, Yb and Tb05-09-2013
20130093313LIGHT-EMITTING DEVICE - A light-emitting device includes a phosphor plate including an upper surface, a lower surface opposite to the upper surface, a peripheral side surface extending between a peripheral edge of the upper surface and a peripheral edge of the lower surface of the phosphor plate, a light-emitting element including an upper surface, a lower surface opposite to the upper surface, a peripheral side surface extending between a peripheral edge of the upper surface and a peripheral edge of the lower surface of the light-emitting element. The lower surface of the phosphor plate includes a concave that is filled with an adhesive and the lower surface of the phosphor plate is disposed on the upper surface of the light-emitting element. The phosphor plate may contain a first phosphor, and the adhesive filled in the concave that is provided at the lower surface of the phosphor plate may include a second phosphor.04-18-2013
20130093314B-SIALON AND METHOD OF MANUFACTURING THEREOF, AND LIGHT-EMITTING DEVICE - β-SiAlON represented by a general formula Si04-18-2013
20130127332Coatings for Photoluminescent Materials - The teachings are generally directed to phosphors having combination coatings with multifunctional characteristics that increase the performance and/or reliability of the phosphor. The teachings include highly reliable phosphors having coatings that contain more than one inorganic component, more than one layer, more than one thicknesses, more than one combination of layers or thicknesses, a gradient-interface between components, a primer thickness or layer to inhibit or prevent leaching of phosphor components into the coatings, a sealant layer to inhibit or prevent entry of moisture or oxygen from the environment, a mixed composition layer as a sealant and multifunctional combination coatings.05-23-2013
20130127333OXYNITRIDE LUMINESCENT MATERIAL, PREPARATION METHOD THEREOF AND ILLUMINATION LIGHT SOURCE MADE FROM SUCH MATERIAL - A nitrogen oxide luminescence material, with chemical formula: M05-23-2013
20090295272PHOSPHOR COMPOSITION AND METHOD FOR PRODUCING THE SAME, AND LIGHT-EMITTING DEVICE USING THE SAME - A light-emitting device is produced using a phosphor composition containing a phosphor host having as a main component a composition represented by a composition formula: aM12-03-2009
20090026916WHITE LIGHT-EMITTING LAMP, BACKLIGHT USING SAME, DISPLAY AND ILLUMINATING DEVICE - A white light-emitting lamp (01-29-2009
20110215709LUMINESCENT MATERIAL - According to one embodiment, a luminescent material includes luminescent material particles having a composition represented by formula A.09-08-2011
20080197766Method For Making Nanostructures - A process for making nanostructures on a support, including: supplying a support including a surface layer on one of its faces, covering the surface layer by a catalyst layer structured according to a pattern exposing areas of the surface layer covered by the catalyst and areas of the surface layer not covered by the catalyst, etching the thickness of the surface layer in the areas not covered by the catalyst layer, and selectively growing nanostructures on the areas of the surface layer covered by the catalyst. The process can also be used to make cathode structures with electrically independent nanostructures.08-21-2008
20080197765Layered amorphous diamond materials and associated methods for enhanced diamond electroluminescence - An electroluminescence device having enhanced overall luminescence or brightness resulting from a plurality of luminescence groups arranged in a stacked configuration, such that the luminescence output from one luminescent group is caused to blend with the luminescent output from one or more additional luminescent groups to provide an improved luminescence output that enhances the intensity of the overall luminescence generated by the device as compared to a device with a single luminescent group, or electrode assembly containing such. In some aspects, the improvement or increase may be at least additive, and in some cases synergistic. The device can include a multi-layer diamond electroluminescence device configured to provide enhanced luminescence intensity, wherein the device comprises a plurality of operating pairs of electrode layers; at least one diamond-like carbon layer disposed between each of the operating pairs of electrode layers, and electrically coupled to an electrode layer within a respective pair of electrode layers; and at least one luminescent layer disposed between each of the operating pairs of electrode layers, and electrically coupled to the diamond-like carbon layer and the respective pair of electrode layers, such that upon receiving electrons from the diamond-like carbon layer the luminescent layer illuminates.08-21-2008
20130147342OXYNITRIDE-BASED PHOSPHOR, LIGHT EMITTING DEVICE INCLUDING THE SAME AND METHOD FOR PREPARING AN OXYNITRIDE-BASED PHOSPHOR - There are provided an oxynitride-based phosphor and a light emitting device including the same. The oxynitride-based phosphor has a rare-earth element dissolved in a host material represented by a general formula: Ca06-13-2013
20130147343PHOSPHOR COMPOSITION, LIGHT EMITTING DEVICE, AND THE METHOD OF PREPARING THE PHOSPHOR COMPOSITION - There are provided a phosphor and a light emitting device. The phosphor includes a phosphor composition including a rare-earth element employed in a compound represented by the equation: L06-13-2013
20130147344PHOSPHOR, MANUFACTURING METHOD OF PHOSPHOR AND LIGHT EMITTING DEVICE INCLUDING THE SAME - A phosphor is represented by a general Formula: Eu06-13-2013
20130147345COLOR CONVERSION FILTER - A color conversion filter contains at least one kind of squarylium dye that radiates fluorescence light, has a wavelength conversion capability, absorbs light in an unneeded wavelength region, radiates fluorescence light in a preferable wavelength region, and does not allow decrease in brightness, and thus is preferable for color conversion light-emitting devices, photoelectric conversion devices and the like. Specifically, the color conversion filter has an absorption having a high intensity in the range of 570 to 600 nm, and thus is preferable for use in a color conversion filter that radiates fluorescence light having a high intensity in the range of 600 to 780 nm.06-13-2013
20090021141FLUORESCENT SUBSTANCE AND PROCESS FOR PRODUCING THE SAME, AND LUMINESCENT ELEMENT USING THE SAME - Provided is a phosphor material for a white LED with a blue LED or ultraviolet LED as a light source.01-22-2009
20100283381Phosphor and light emitting device - A JEM phase phosphor having superior luminous efficiency is obtained, and a light emitting device is provided, which includes first and second phosphors and in which fluorescence from the first phosphor is not much absorbed by the second phosphor, with the JEM phase phosphor used as a first phosphor. The first phosphor is the JEM phase phosphor having optical absorption of at most 30% at a wavelength in a relation of complementary color to the emission wavelength of the first phosphor. In the light emitting device having a combination of the first phosphor and the second phosphor emitting fluorescence of longer wavelength than the first phosphor, the first phosphor has optical absorption at the emission wavelength of the second phosphor of at most 30%.11-11-2010
20090045720Method for producing nanowires using porous glass template, and multi-probe, field emission tip and devices employing the nanowires - Disclosed herein is a method for producing nanowires, which features the use of a porous glass template in combination with a solid-liquid-solid or vapor-liquid-solid process for growing nanowires which are highly straight and have nanoparticles precisely arranged therein. The nanowires can be grown into composite structures of superlattices and hybrids by modulating the composition of the materials provided thereto. Also disclosed is the use of the nanowires in multi-probes, field emission tips, and devices.02-19-2009
20100308713AT LEAST SINGLE-LAYER INORGANIC THICK-FILM AC ELECTROLUMINESCENCE SYSTEM HAVING DIFFERENTLY CONTOURED AND LARGELY TRANSPARENT CONDUCTIVE LAYERS, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF - The invention relates to an at least single-layer flat EL luminous system based on at least one inorganic thick-film AC-electroluminescent (EL) element having at least two electrically conducting flat electrodes, wherein at least one of the two flat electrodes is largely transparent and the at least two electrodes have a graphically configured contour and an EL emission takes place only in those regions in which two corresponding electrodes overlap and an EL layer is arranged between two corresponding electrodes and the EL emission in the overlapping electrode regions has a different emission colour and, by operating the at least one EL element with at least one alternating voltage, an EL luminous system corresponding to the graphical configuration of the at least two flat electrodes is thus obtained.12-09-2010
20100308712NITRIDE-BASED RED-EMITTING PHOSPHORS IN RGB RED-GREEN-BLUE LIGHTING SYSTEMS - Embodiments of the present invention are directed to nitride-based, red-emitting phosphors in red, green, and blue (RGB) lighting systems, which in turn may be used in backlighting displays and warm white-light applications. In particular embodiments, the red-emitting phosphor is based on CaAlSiN12-09-2010
20100308711LUMINESCENT COMPOSITION, LIGHT SOURCE DEVICE, AND DISPLAY DEVICE - The present invention is to provide a luminescent composition, a light source device, and a display device each having a phosphor for which both avoidance of the shift of the luminescence wavelength band toward the shorter wavelength side and suppression of color unevenness are achieved. A configuration is provided in which a luminescent composition having a phosphor with the same crystal structure as that of CaAlSiN12-09-2010
20100314993OXYFLUORIDE PHOSPHORS AND WHITE LIGHT EMITTING DIODES INCLUDING THE OXYFLUORIDE PHOSPHOR FOR SOLID-STATE LIGHTING APPLICATIONS - A blue-green emitting Ce12-16-2010
20100314992Porous phosphor, manufacturing method of the porous phosphor, and lighting device coated with the porous phosphor - The present invention discloses a porous phosphor and manufacturing method of the same. The method includes manufacturing an organic-inorganic hybrid porous structure from solution comprising deep eutectic solvent, the 1312-16-2010
20130154470RED FLUORESCENT MATERIAL, METHOD FOR PRODUCING RED FLUORESCENT MATERIAL, WHITE LIGHT SOURCE, ILLUMINATING DEVICE, AND LIQUID CRYSTAL DISPLAY - [Problems to Be Solved]06-20-2013
20130181601LIGHT-MIXING MULTICHIP PACKAGE STRUCTURE - A light-mixing multichip package structure includes a substrate unit, a light-emitting unit, a package unit, and a frame unit. The substrate unit includes a substrate body. The light-emitting unit includes a plurality of first and second light-emitting groups. The first and the second light-emitting groups are disposed on the substrate body and electrically connected to the substrate body in series. Each first light-emitting group includes a plurality of first parallel connection units electrically connected in parallel, and each first parallel connection unit includes at least one blue LED chip, and each second light-emitting group includes at least one red LED chip. The package unit includes a phosphor resin body disposed on the substrate body to cover the first and the second light-emitting groups. The frame unit includes a surrounding light-reflecting frame surrounding the first and the second light-emitting groups and the phosphor resin body.07-18-2013
20130113365METHOD OF PRODUCING COATED PHOSPHOR, COATED PHOSPHOR AND WHITE LIGHT SOURCE - To provide a coated phosphor having good phosphor characteristics that can maintain light emitting characteristic for a long period of time. A mixing process is prepared in which a phosphor and aluminum alkoxide are mixed in a solvent so that the phosphor is coated with an aluminum oxide formed from the aluminum alkoxide, and the phosphor contains Group II element (M), europium (Eu), silicon (Si) and oxygen (O) in atomic weight ratios represented by the following composition formula (1):05-09-2013
20090261710SOLID-STATE LAMPS WITH PARTIAL CONVERSION IN PHOSPHORS FOR RENDERING AN ENHANCED NUMBER OF COLORS - The invention relates to phosphor-conversion (PC) sources of white light, which are composed of at least two groups of emitters, such as blue electroluminescent light-emitting diodes (LEDs) and wide-band (WB) or narrow-band (NB) phosphors that partially absorb and convert the flux generated by the LEDs to other wavelengths, and to improving the quality of the white light emitted by such light sources. In particular, embodiments of the present invention describe new 3-4 component combinations of peak wavelengths and bandwidths for white PC LEDs with partial conversion. These combinations are used to provide spectral power distributions that enable lighting with a considerable portion of a high number of spectrophotometrically calibrated colors rendered almost indistinguishably from a blackbody radiator or daylight illuminant, and which differ from distributions optimized using standard color-rendering assessment procedures based on a small number of test samples.10-22-2009
20120019127PHOSPHOR, METHOD FOR PRODUCING SAME, LIGHT-EMITTING DEVICE, AND IMAGE DISPLAY APPARATUS - A phosphor comprising a CaAlSiN01-26-2012
20120019126OXYNITRIDE PHOSPHORS, METHOD OF PREPARATION, AND LIGHT EMITTING INSTRUMENT - An oxynitride phosphor is presented. The oxynitride phosphor has a formula: ApBqOrNs: R such that A is barium or a combination of barium with at least one of Li, Na, K, Y, Sc, Be, Mg, Ca, Sr, Ba, Zn, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, and Lu; B is silicon or a combination of silicon with at least one of Al, B, Ga, and Ge; R is europium or a combination of europium with at least one of Ce, Pr, Sm, Nd, Tb, Dy, Yb, Tm, Er, Ho, and Mn. p, q, r, s are numbers such that p is greater than about 2 and less than about 6, q is greater than about 8 and less than about 10, r is greater than about 0.1 and less than about 6, and s is greater than about 10 and less than about 15. The method of preparing the oxynitride phosphors and light emitting apparatus including the oxynitride phosphors are included.01-26-2012
20120056526LIGHT EMITTING DEVICE - A light emitting device according to one embodiment includes a light emitting element that emits light having a wavelength of 380 nm to 470 nm; a CASN first red phosphor that is disposed on the light emitting element; a sialon second red phosphor that is disposed on the light emitting element; and a sialon green phosphor that is disposed on the light emitting element.03-08-2012
20120056525LIGHT EMITTING DEVICE - A light emitting device according to one embodiment includes a light emitting element that emits light having a wavelength of 250 nm to 500 nm; plural red fluorescent layers that are formed above the light emitting element to include a red fluorescent material, the red fluorescent layers being disposed at predetermined intervals; and plural green fluorescent layers that are formed above the light emitting element to include a green fluorescent material, a distance between the light emitting element and the green fluorescent layers being larger than a distance between the light emitting element and the red fluorescent layers.03-08-2012
20130200779LIGHT-EMITTING DEVICE, AND LIGHTING SYSTEM, AND IMAGE DISPLAY USING SAME - To enhance luminance and color rendering of a light emitting device comprising phosphors as wavelength converting material and at least one semiconductor light emitting device that emits visible light, as said phosphors, are used phosphors which are one or more kinds of phosphors selected from a group consisting of oxides, oxynitrides and nitrides, and are a mixture consisting of two or more kinds of phosphors whose luminous efficiency is 35% or higher when excited by the visible light from said semiconductor light emitting device at room temperature. In addition, said mixture contains a first phosphor, and a second phosphor that is different from said first phosphor and capable of absorbing emitted light from said first phosphor, and said first phosphor is contained 85 weight % or more of said mixture of phosphors.08-08-2013
20130200778LIGHT EMITTING DEVICE - A light emitting device includes a board, a light emitting element, and a transparent member. The light emitting element is mounted on the board. The transparent member seals the light emitting element. The transparent member is disposed around a periphery of the board and the light emitting element. The transparent member comprises a phosphor therein.08-08-2013
20130207536Carbidonitride phosphors and LED lighting devices using the same - A red phosphor is provided. Also provided is a lighting apparatus containing a red phosphor.08-15-2013
20130207537Oxycarbidonitride based phosphors and LED lighting devices - A red phosphor is provided. Also provided is a lighting apparatus containing a red phosphor.08-15-2013

Patent applications in class With particular phosphor or electrode material

Patent applications in all subclasses With particular phosphor or electrode material