Patent application number | Description | Published |
20080258112 | LUMINESCENT COMPOSITION, LIGHT SOURCE DEVICE, DISPLAY DEVICE AND PROCESS FOR PREPARING LUMINESCENT COMPOSITION - Disclosed is a luminescent composition containing a fluorescent body having Eu2+as a luminescent center. The luminescent composition is obtained by a process including the steps of mixing a raw material of the fluorescent body with an organic compound having elements other than oxygen, and sintering the mixture to form the fluorescent body from the raw material. | 10-23-2008 |
20090009052 | PHOSPHOR, FLUORESCENT LAMP USING THE SAME, AND DISPLAY DEVICE AND ILLUMINATING DEVICE USING FLUORESCENT LAMP - A phosphor includes Eu-activated YVO | 01-08-2009 |
20090115713 | COLOR LIQUID CRYSTAL DISPLAY DEVICE ASSEMBLY - A color liquid crystal display device assembly includes a color liquid crystal display device in which pixels each including at least a first subpixel, a second subpixel, and a third subpixel are arranged in a two-dimensional matrix, and a planar light source device which has light sources emitting first primary light corresponding to a first primary color of the light three primary colors and illuminating the color liquid crystal display device, and the liquid crystal display device has (A) second primary light emitting regions which emit second primary light when excited by the first primary light passing through the second subpixel, (B) third primary light emitting regions which emit third primary light when excited by the first primary light passing through the third subpixel, and (C) diffusion regions which diffuse the first primary light emitted from the light sources and passing through each first subpixel. | 05-07-2009 |
20090289546 | PHOSPHOR AND METHOD FOR MANUFACTURING THE SAME, AND LIGHT-EMITTING DEVICE AND DISPLAY DEVICE USING PHOSPHOR - A phosphor includes (Sr | 11-26-2009 |
20100085727 | LIGHTING DEVICE AND DISPLAY DEVICE HAVING THE SAME - Disclosed herein is a lighting device including a blue light-emitting element adapted to emit a blue light beam; and a green phosphor layer which is disposed apart from the blue light-emitting element and can function as a light diffusion layer, the green phosphor layer including a green phosphor adapted to emit green fluorescence when excited by the blue light beam, the green phosphor having a refractive index of 1.49 or more and a quantum efficiency of 79% or more. | 04-08-2010 |
20100142184 | FLUORESCENT LAMP, LIGHT SOURCE APPARATUS AND DISPLAY APPARATUS - In a fluorescent lamp, an initial chromaticity change can be suppressed. An atmosphere in contact with a blue light-emission phosphor forming a phosphor particle layer 3 that contains argon (Ar) and neon (Ne) shown by the following equation A/(A+N)≧0.04, wherein A represents a mole fraction of argon and N represents a mole fraction of neon. | 06-10-2010 |
20100308711 | LUMINESCENT 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 CaAlSiN | 12-09-2010 |
20110176084 | RED PHOSPHOR, METHOD FOR PRODUCING RED PHOSPHOR, WHITE LIGHT SOURCE, ILLUMINATING DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE - A compound is provided containing silicon, aluminum, strontium, europium, nitrogen, and oxygen is used that enables a red phosphor having strong luminous intensity and high luminance to be obtained, and that enables the color gamut of a white LED to be increased with the use of the red phosphor. The red phosphor contains an element A, europium, silicon, aluminum, oxygen, and nitrogen at the atom number ratio of the following formula: [A | 07-21-2011 |
20110273864 | GREEN-EMITTING PHOSPHOR PARTICLES, METHOD FOR MANUFACTURING GREEN-EMITTING PHOSPHOR PARTICLES, COLOR CONVERSION SHEET, LIGHT-EMITTING DEVICE, AND IMAGE DISPLAY DEVICE ASSEMBLY - A method for manufacturing green-emitting phosphor particles including the steps of producing a powder containing europium and strontium from a solution containing a europium compound and a strontium compound, mixing the resulting powder and a powdered gallium compound, and performing firing. | 11-10-2011 |
20120326086 | RED PHOSPHOR, METHOD FOR PRODUCING RED PHOSPHOR, WHITE LIGHT SOURCE, ILLUMINATING DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE - A compound is provided containing silicon, aluminum, strontium, europium, nitrogen, and oxygen is used that enables a red phosphor having strong luminous intensity and high luminance to be obtained, and that enables the color gamut of a white LED to be increased with the use of the red phosphor. The red phosphor contains an element A, europium, silicon, aluminum, oxygen, and nitrogen at the atom number ratio of the following formula: [A | 12-27-2012 |
20140183411 | RED PHOSPHOR, METHOD FOR PRODUCING RED PHOSPHOR, WHITE LIGHT SOURCE, ILLUMINATING DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE - A compound is provided containing silicon, aluminum, strontium, europium, nitrogen, and oxygen is used that enables a red phosphor having strong luminous intensity and high luminance to be obtained, and that enables the color gamut of a white LED to be increased with the use of the red phosphor. The red phosphor contains an element A, curopium, silicon, aluminum, oxygen, and nitrogen at the atom number ratio of the following formula: [A | 07-03-2014 |
Patent application number | Description | Published |
20090129055 | ILLUMINATING DEVICE HAVING FLUORESCENT LAMP, DISPLAY APPARATUS INCLUDING THE SAME, AND LIGHT-DIFFUSING FILM - An illuminating device includes a fluorescent lamp including a blue phosphor and a red phosphor applied on an inner surface, the fluorescent lamp emitting blue light and red light from the blue phosphor and the red phosphor, respectively; and a green phosphor layer disposed outside the fluorescent lamp, the green phosphor layer containing a green phosphor containing Eu | 05-21-2009 |
20100002413 | DISPLAY DEVICE - A display device capable of expressing a particularly superior red color, for example, a red color of the sRGB standard, is provided. A display device | 01-07-2010 |
20130113365 | METHOD 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 |
20130154470 | RED FLUORESCENT MATERIAL, METHOD FOR PRODUCING RED FLUORESCENT MATERIAL, WHITE LIGHT SOURCE, ILLUMINATING DEVICE, AND LIQUID CRYSTAL DISPLAY - [Problems to Be Solved] | 06-20-2013 |
20140077685 | RED FLOURESCENT MATERIAL, METHOD FOR PRODUCING RED FLUORESCENT MATERIAL, WHITE LIGHT SOURCE, ILLUMINATING DEVICE, AND LIQUID CRYSTAL DISPLAY - The present invention provides an efficient red fluorescent material and a method for producing the same, provides a white light source and an illuminating device each of which uses this red fluorescent material to achieve snow-white lighting, and furthermore provides a liquid crystal display having excellent color reproduction. The red fluorescent material contains an element A, europium, silicon, carbon, oxygen, and nitrogen, at an atomic ratio of the following composition formula (1), and, in a Photo Luminescence Excitation spectrum of the red fluorescent material, a relative value of a luminescence intensity of 550 nm excitation wavelength when a luminescence intensity of 400 nm excitation wavelength is defined as 1 is not more than 0.85 and not less than 0.55. | 03-20-2014 |
Patent application number | Description | Published |
20120218496 | RED PHOSPHOR, METHOD FOR PRODUCING RED PHOSPHOR, WHITE LIGHT SOURCE, ILLUMINATING DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE - A red phosphor of high efficiency and a method for producing it are provided. A white light source and an illumination device that allow illumination with the pure white color using the red phosphor are also provided. In addition, a liquid crystal display device using the red phosphor and exhibiting good color reproducing performance is provided. The red phosphor contains an element A, europium (Eu), silicon (Si), carbon (C), oxygen (O) and nitrogen (N) in the ratios of the numbers of atoms of the following compositional formula (1): | 08-30-2012 |
20130292610 | METHOD FOR MANUFACTURING COATED PHOSPHOR, AND COATED PHOSPHOR - A process for producing a coated phosphor, namely a phosphor coated with a coating material, which includes a mixing step of mixing a phosphor with a coating material in a solvent to form a mixed fluid and a separation step of separating the mixed fluid into a solid phase and a liquid phase, wherein the phosphor comprises barium (Ba), strontium (Sr), europium (Eu), silicon (Si) and oxygen (O) at an atomic ratio represented by compositional formula (1), and the mass ratio of the phosphor to the coating material is 40:260 to 200:260, [(Ba1-ySry)1-xEux]aSibOc (1) [wherein a, b, c, x and y satisfy the relationships: 2.7 | 11-07-2013 |
20140036201 | METHOD FOR MANUFACTURING RED PHOSPHOR - Provided is a process for producing a red phosphor, said process achieving enhanced productivity. Also provided are: a red phosphor having excellent luminescence characteristics; and a white light source, a lighting system, and a liquid crystal display device, using the red phosphor. This process comprises: mixing an A-containing compound, a nitrogen-free europium source, a silicon-containing compound, an aluminum-containing compound and a carbon-containing reducing agent so as to form a mixture wherein the atomic ratio among A, europium (Eu), silicon (Si), aluminum (Al) and carbon (C) is a value represented by compositional formula (1); firing the mixture; and pulverizing the fired mixture. (Am−xEux)Aly(Si1−zCz)90 nN[12+y−2(n−m)/3] (1) [wherein A is at least one element selected from among magnesium (Mg), calcium (Ca), strontium (Sr) and barium (Ba), and m, x, z and n satisfy the relationships: 3. | 02-06-2014 |
20140293609 | COATED PHOSPHOR AND METHOD FOR PRODUCING COATED PHOSPHOR - A coated phosphor includes a sulfide phosphor coated with silicon dioxide film. The silicon dioxide film includes a metal oxide powder. The metal oxide powder includes a zinc oxide powder such that less than 20 parts by mass of the zinc oxide powder relative to 100 parts by mass of the sulfide phosphor is blended therein. | 10-02-2014 |
20140320787 | RED PHOSPHOR, METHOD FOR PRODUCING RED PHOSPHOR, WHITE LIGHT SOURCE, ILLUMINATING DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE - A red phosphor of high efficiency and a method for producing it are provided. A white light source and an illumination device that allow illumination with the pure white color using the red phosphor are also provided. In addition, a liquid crystal display device using the red phosphor and exhibiting good color reproducing performance is provided. The red phosphor contains an element A, europium (Eu), silicon (Si), carbon (C), oxygen (O) and nitrogen (N) in the ratios of the numbers of atoms of the following compositional formula (1): | 10-30-2014 |