Patent application number | Description | Published |
20080212305 | Blue Color Composition for Color Filter, Color Filter, and Color Image Display Device - To provide a blue composition for a color filter which realizes an image with a high color purity, a color filter and a color image display device. | 09-04-2008 |
20080290786 | Light 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 |
20080303410 | Light 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 |
20090008663 | PHOSPHOR AND METHOD FOR PRODUCTION THEREOF, AND APPLICATION THEREOF - A phosphor containing a crystal phase having a chemical composition expressed by the following general formula [1], and exhibiting an average variation rate of the emission intensity of 1.3 or less upon excitation with light having a peak in the wavelength range of 420 nm to 480 nm, the variation rate of the emission intensity being calculated by the following general formula [2]. | 01-08-2009 |
20090026920 | Phosphor, light-emitting device using same, image display and illuminating device - The present invention relates to a phosphor represented by the following general formula (I), comprising: a composite oxide containing a divalent and trivalent metal elements as a host crystal; and at least Ce as an activator element in said host crystal, wherein the phosphor has a maximum emission peak in a wavelength range of from 485 nm to 555 nm in the emission spectrum at room temperature: | 01-29-2009 |
20090033201 | COMPLEX OXYNITRIDE PHOSPHOR, LIGHT-EMITTING DEVICE USING SAME, IMAGE DISPLAY, ILLUMINATING DEVICE, PHOSPHOR-CONTAINING COMPOSITION AND COMPLEX OXYNITRIDE - To provide a green phosphor with high conversion efficiency of blue of near-ultraviolet light and excellent color purity, a multinary oxynitride phosphor represented by the general formula [I] is proposed. | 02-05-2009 |
20090066230 | PHOSPHOR AND USE THEREOF - A phosphor which emits light having high brightness, serves as an excellent orange or red phosphor whose light brightness is less decreased when exposed to an excitation source contains a crystal phase having the chemical composition expressed by the general formula [1]: | 03-12-2009 |
20090072255 | PHOSPHOR AND LIGHT-EMITTING DEVICE USING SAME - The present invention relates to a phosphor that satisfies requirements (1) to (3):
| 03-19-2009 |
20090134775 | ALLOY 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 M | 05-28-2009 |
20090140205 | NITROGEN-CONTAINING ALLOY AND METHOD FOR PRODUCING PHOSPHOR USING THE SAME - There is provided a method for industrially producing a phosphor with high performance, in particular, high brightness. There is also provided a nitrogen-containing alloy and an alloy powder that can be used for the production method. A method for producing a phosphor includes a step of heating a raw material for the phosphor under a nitrogen-containing atmosphere, in which an alloy containing two or more different metal elements constituting the phosphor is used as the whole or part of the raw material for the phosphor, and in the heating step, the heating is performed under conditions such that the temperature change per minute is 50° C. or lower. | 06-04-2009 |
20090140630 | LIGHT-EMITTING DEVICE, WHITE LIGHT-EMITTING DEVICE, ILLUMINATOR, AND IMAGE DISPLAY - To achieve a light-emitting device emitting light with high brightness, closer to natural light, and less color shift due to a small change in intensity of emitted light, in a light-emitting device including a light source emitting light by driving current and at least one wavelength-converting material absorbing at least part of the light from the light source and emitting light having a different wavelength, the color coordinate x | 06-04-2009 |
20090243467 | PHOSPHOR 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 |
20090267484 | ILLUMINATING DEVICE - An illuminating device comprises one or more luminescent devices ( | 10-29-2009 |
20090322990 | COLOR IMAGE DISPLAY DEVICE - To attain a high color reproducibility as a whole image without impairing the brightness of the entire image. | 12-31-2009 |
20100085728 | Phosphor and production method thereof, phosphor-containing composition, light emitting device, illuminating device, display, and nitrogen-containing compound - To provide a new phosphor of which fluorescence contains much red light component and has a large full width at half maximum, the crystal phase represented by the formula [I] is included in the phosphor. | 04-08-2010 |
20100090585 | PHOSPHOR, 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 |
20100141172 | Light Source, Solid State Light Emitting Element Module, Fluorescent Module, Light Orientation Element Module, Illumination Device, Image Display Device, and Light Source Adjustment Method - An object of the present invention is to make possible irradiating a desired irradiated surface with a homogenized-colored light having high color rendering, with high luminous efficiency. To achieve the object, the present invention provides a light source comprising two or more primary light sources, each of which emits primary light having different wavelength, wherein the maximum value among differences between each of CIE chromaticity coordinates of the primary lights is 0.05 or larger, the primary lights have the same illuminance distribution characteristics at a desired irradiated surface, the luminous efficiency is 30 lm/W or larger, and the general color rendering index is 60 or larger. | 06-10-2010 |
20100142189 | SEMICONDUCTOR LIGHT EMITTING DEVICE, BACKLIGHT, COLOR IMAGE DISPLAY DEVICE AND PHOSPHOR TO BE USED FOR THEM - To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. | 06-10-2010 |
20100164365 | PHOSPHOR, 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 |
20100213822 | PHOSPHOR 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 |
20100213861 | Light Emitting Device, Lighting System, Backlight Unit for Display Device and Display Device - To enhance emission efficiency and color rendering, a light emitting device | 08-26-2010 |
20100231121 | METHOD 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 |
20110181175 | LIGHT-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 | 07-28-2011 |
20110182072 | PHOSPHOR, PRODUCTION METHOD OF PHOSPHOR, PHOSPHOR-CONTAINING COMPOSITION, AND LIGHT EMITTING DEVICE - To provide an alkaline-earth metal halogen phosphor that has high luminescent characteristics even when used with an excitation light source that emits light of the near-ultraviolet region, a phosphor-containing composition and a light emitting device using the phosphor, and a display and an illuminating device using the light emitting device, | 07-28-2011 |
20110298387 | LIGHT EMITTING DEVICE, LIGHTING SYSTEM, BACKLIGHT UNIT FOR DISPLAY DEVICE AND DISPLAY DEVICE - To enhance emission efficiency and color rendering, a light emitting device | 12-08-2011 |
20120171360 | NITROGEN-CONTAINING ALLOY AND METHOD FOR PRODUCING PHOSPHOR USING SAME - A method for industrially producing a phosphor with high performance, in particular, high brightness. Also disclosed is a nitrogen-containing alloy and an alloy powder useful for producing the high performance phosphor. The method for producing the phosphor includes heating a raw material for a phosphor in whole or in part comprising an alloy containing two or more different metal elements under a nitrogen-containing atmosphere and heating the raw material for a phosphor under conditions such that the temperature change per minute is 50° C. or lower. Using an alloy as all or part of the raw material constituting the phosphor precursor, it is possible to suppress the rapid progression of nitridation during heat treatment and industrially produce a phosphor with high performance, in particular, high brightness. | 07-05-2012 |
20130214675 | ALLOY 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 (I | 08-22-2013 |