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6869545 |
Colloidal nanocrystals with high photoluminescence quantum yields and methods of preparing the same
The present invention provides new compositions containing colloidal nanocrystals with high photoluminescence quantum yields, new synthetic methods for the preparation of highly luminescent...
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6863996 |
Fluorescent thin film, its fabrication process, and EL panel
A fluorescent thin film is provided, including a matrix material containing as a main component a rare earth sulfide or a rare earth selenide and a rare earth element additive as a light emission...
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6855271 |
Coated phosphor filler and a method of forming the coated phosphor filler
An improved coated phosphor filler for an optical device includes a plurality of individual phosphor filler particles, and a coating layer having a plastic substance coated on each of the phosphor...
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6843938 |
Methods for preparing rare-earth oxysulfide phosphors, and resulting materials
The present invention provides new and useful methods for preparing rare-earth oxysulfide phosphors. Advantageously, in accordance with the methods of the subject invention, rare-earth oxysulfide...
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6838020 |
Isotopically enriched luminescent materials and methods of making same
The invention is directed to luminescent materials containing isotopically-enriched atomic elements and methods of making these luminescent materials. Individual embodiments of the invention...
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6838413 |
Oxysulfide photocatalyst for decomposition of water by visible light
A photocatalyst which comprises an oxysulfide containing at least one transition metal; a preferable photocatalyst which also comprises a rare earth element such as Sm in addition to the above and...
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6833086 |
Phosphor powder and production method therof, display panel, and flat-panel display device
A phosphor powder is composed of a host material made of an element coming under the group II of the periodic table and an element coming under the group VI of the periodic table, an activator and...
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6783700 |
Red photoluminescent phosphors
A red-emitting strontium-calcium sulfide phosphor doped with europium and a halide. These phosphors are made by combining their insoluble sulfates, adding europium as an activator, firing in...
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6761836 |
Phosphor and flourescent display device
A yellow light emission phosphor usable in a fluorescent display device does not include cadmium and Eu concentration in the yellow light emission phosphor is reduced to a range of about 0.001 mol...
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6762551 |
White light source and display apparatus using the same
A white light source includes an ultraviolet-visible excitation light generation unit capable of generating visible light and ultraviolet light, and a fluorescence generation unit having a phosphor...
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6761835 |
Phosphor multilayer and EL panel
The invention aims to provide a phosphor multilayer eliminating a need for filters, having a satisfactory color purity and useful in white monochromatic EL devices, and an EL panel. Such objects...
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6752933 |
Phosphors having longer lifespan
A phosphor having longer lifespan which includes sulfur and has a perovskite structure. The phosphor further satisfies the following formula: MTiO 3 :A where M is an alkaline earth metal and A is...
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6743378 |
Plasma display panel with improved mixed green-color fluorescent material
A mixed green color fluorescent material for an electric device such as a plasma display panel includes: at least a first fluorescent material selected from a Group A defined in a range...
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6736995 |
Plasma picture screen with a phosphor layer
This invention relates to a plasma picture screen provided with a phosphor layer which comprises an intrinsically pigmented phosphor. The plasma picture screen has an improved value for the...
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6702959 |
Long life, white light emitting electroluminescent phosphor
A long-life, white-emitting phosphor blend is provided which comprises about 75 wt. % of a first electroluminescent phosphor having an x color coordinate of about 0.530 and a y color coordinate of...
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6699406 |
Rare earth doped host materials
A rare earth element doped composition having a dopant concentration of up to about 60 mole percent of one or more rare earth elements selected from Tb, Dy, Ho, Er, Tm, Yb and Lu, wherein the...
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6695980 |
Compressed fluid formulation containing electroluminescent material
An imaging composition comprises a mixture of a fluid and a functional material; wherein the fluid is compressed and the functional material is an electroluminescent material which is dissolved,...
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6695981 |
Method for manufacturing luminescent material, luminescent material manufactured by the same manufacturing method, and display substrate and display apparatus having the same luminescent material
The present invention provides a method for manufacturing a luminescent material whereby the surfaces of phosphor particles are uniformly coated with glass, and a luminescent material made up of...
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6695982 |
Highly efficient flourescent materials
A high efficiency phosphor from the class of the thiometallates, preferably of the thiogallates. The thiometallate being made so as to correspond to the formula (AS)·w(B 2 S 3 ), where A is at...
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6686062 |
Magnesium calcium thioaluminate phosphor
A thin film phosphor for an electroluminescent device, the phosphor being a compound of the formula Mg x Ca 1−x Al 2 S 4 :M, where the value of x is in the range 0 <x< 0.3 and M is a rare...
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6666991 |
Fluorescent or phosphorescent composition
A fluorescent or luminous composition, comprising a multilayered film-coated powder having at least two coating films on a base particle, and a fluorescent or luminous substance; the composition,...
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6627113 |
Phosphor consisting of hollow particles, phosphor slurry, phosphor beads for analysis using tracer technique and their production processes
A phosphor consisting of hollow particles, each hollow particle having an outer shell and a space in the inside of said outer shell.
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6617781 |
Red light emitting long afterglow photoluminescence phosphor and afterglow lamp thereof
A red light emitting afterglow photoluminescence phosphor is a rare earth oxysulfide phosphor activated by Europium, which chemical formula is as follows: Ln 2 O 2 S:Eu x ,M y 0.00001≦x≦0.5...
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6617782 |
Thioaluminate phosphor material with a gadolinium co-activator
A thin film phosphor for an electroluminescent device, in which the phosphor is selected from the group consisting of thioaluminates, thiogallates and thioindates having at least one cation...
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6572786 |
Phosphor and fluorescent display device
A phosphor capable of preventing a deterioration in luminous characteristics thereof, particularly, high-temperature operation characteristics thereof due to a SiO 2 -containing pigment added...
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6572784 |
Luminescent pigments and foils with color-shifting properties
Interference pigment flakes and foils are provided which have luminescent and color-shifting properties. The pigment flakes can have a symmetrical coating structure on opposing sides of a core...
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6565770 |
Color-shifting pigments and foils with luminescent coatings
Interference pigment flakes and foils are provided which have luminescent and color-shifting properties. A luminescent material coating structure is provided which partially covers or encapsulates...
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6562260 |
Recovery of electroluminescsent phosphor from encapsulated material
A method of recovering a base phosphor from encapsulated phosphors, which comprises the steps of selecting a recovery vessel including a magnetic stir bar; adding to the recovery vessel, deionized...
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6544438 |
Preparation of high emission efficiency alkaline earth metal thiogallate phosphors
A method of forming high efficiency emission alkali metal activated gallium sulfide phosphors by including an excess of 1-7% of gallium. A solution of a soluble gallium salt is added to a sulfate...
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6521329 |
Radiographic phosphor panel having reflective polymeric supports
A radiographic phosphor panel includes a phosphor layer that transmits actinic radiation in a range that is reflected by a transparent, polymeric multi-layer reflector used as a support. The...
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6458512 |
Oxynitride encapsulated electroluminescent phosphor particles
Encapsulated electroluminescent phosphor particles and a method of making same. Each electroluminescent phosphor particle is encapsulated by a substantially transparent metal oxynitride coating....
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6451460 |
Thin film electroluminescent device
A light emitting phosphor material for an alternating current thin-film electroluminescent device that includes the phosphor material sandwiched between a pair of dielectric layers. The phosphor...
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6444143 |
Water-soluble fluorescent nanocrystals
A water soluble semiconductor nanocrystal capable of light emission is provided, including a quantum dot having a selected band gap energy, a layer overcoating the quantum dot, the overcoating...
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6429583 |
LIGHT EMITTING DEVICE WITH BA2MGSI2O7:EU2&plus , BA2SIO4:EU2&plus , OR (SRXCAY BA1-X-Y)(A1ZGA1-Z)2SR:EU2&plus PHOSPHORS
A lamp comprises a light emitting element such as a light emitting diode or a laser diode which emits blue light, and a phosphor composition which absorbs the blue light having a first spectrum...
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6419854 |
Long persistence red phosphors and method of making
Long persistence phosphors based on strontium sulfide and activated with a divalent rare earth such as europium and a trivalent rare earth that does not change valence in a strontium sulfide host,...
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6395196 |
Process for producing electroluminescent phosphor with extended half-life
An electroluminescent phosphor with an extended half-life is created by means of the present invention by taking an amount of a phosphor and treating it with antimony comprising the steps of...
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6379584 |
Long persistence alkaline earth sulfide phosphors
A long persistence, orange-red emitting phosphor has the formula AS:Eu m Tr n O x X y wherein A is an alkaline earth metal ion, Tr is one or more trivalent rare earth metal ions, X is a halide, m...
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6379583 |
Nanoparticle phosphors manufactured using the bicontinuous cubic phase process
Nanocrystalline phosphors are formed within a bicontinuous cubic phase.
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6319426 |
Water-soluble fluorescent semiconductor nanocrystals
A water-soluble semiconductor nanocrystal capable of light emission is provided. The nanocrystal including a semiconductor nanocrystal core having a selected band gap energy, a shell layer...
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6290874 |
Display screen comprising a metal oxide-containing phosphor composition
A display screen comprising a phosphor composition which includes a phosphor and a phosphor coating with a group of metal-oxygen compounds, the group of metal-oxygen compounds containing an...
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6210604 |
X-ray phosphor powders, methods for making phosphor powders and devices incorporating same
X-ray phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of...
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6197712 |
Method for producing phosphorescent glass artifacts
This invention comprises a method for mechanically mixing inorganic phosphors that have long-duration afterglow with soda-lime-silica glasses. The phosphor-glass compositions produced having no...
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6180073 |
Compound with base of an alkaline-earth, sulphur and aluminium, gallium or indium, method of preparing same and use as luminophore
The present invention relates to a compound based on an alkaline-earth metal, on sulphur and on aluminium, on gallium or indium, to its process of preparation and to its use as luminophore. The...
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6159394 |
Stress emission material and its manufacturing method
The present invention provides a new stress emission material that is different from the other known materials and that efficiently emits light when subjected to a mechanical external force such as...
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6143200 |
Rare earth oxysulfide phosphor and X-ray detector using the same
When each of a rare earth oxysulfide phosphor represented by the composition formula (I) of Ln 2 O 2 S:xRe, yM wherein Ln represents at least one rare earth element selected from Y, La and Gd; Re...
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6132647 |
Blue light emitting material, electroluminescent device using same and method of manufacturing the electroluminescent device
In an EL device in which a blue light emitting material obtained by doping Ce as a luminescent center into CaGa X S Y host material is used for a luminescent layer, values of X and Y in the CaGa...
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6132642 |
Method of preparing small particle size phosphors
A process for preparing phosphor particles having a particle size of 1 micron or less and that are spherical in shape. Such phosphors are useful, for example, as upconverter phosphors in labels for...
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6117626 |
Photographic silver halide photosensitive material and photographic combination using the same
A mammographic silver halide photosensitive material has at least one photosensitive emulsion layer on either one surface of a support. The emulsion layer is formed of a silver halide emulsion...
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6117363 |
Method for producing light-emitting material
There is provided a novel method for manufacturing a light-emitting material composed of II-VI group semiconductors having a nano structure crystal and which is optimally doped with an activator....
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6113807 |
Phosphor and method for producing same
A method for producing a phosphor made of luminous inorganic particles of a nanostructure which is capable of keeping a surface of the phosphor from being polluted by any by-product and controlling...
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