Patent application number | Description | Published |
20080203893 | Light-Emitting Device - The present invention is a light-emitting device which is provided with a phosphor layer containing a blue phosphor, wherein the phosphor layer includes an aluminate phosphor, as the blue phosphor, that contains Ba, Sr, Eu, Mg, Al and O as constituting elements at an atom-number ratio Ba:Sr:Eu:Mg:Al:O=p:q:r:1:w:17 wherein 0.70≦p≦0.95, 0≦q≦0.15, 0.05≦r≦0.20, p+q+r≧1, and 9.8≦w≦10.5 are satisfied, and a value of a linear coupling function s represented by a formula: | 08-28-2008 |
20090021145 | PHOSPHOR, LIGHT-EMITTING DEVICE, AND PLASMA DISPLAY PANEL - The present invention is a blue phosphor that is represented by a general formula xSrO.yEuO.MgO.zSiO | 01-22-2009 |
20090058254 | PHOSPHOR AND LIGHT-EMITTING DEVICE - The present invention provides a phosphor that has high luminance, a property of low luminance degradation during PDP driving, and chromaticity y comparable to that of BAM:Eu. The present invention is the phosphor that is represented by the general formula xAO.y | 03-05-2009 |
20090072704 | PHOSPHOR AND LIGHT-EMITTING DEVICE - The present invention provides a phosphor that has high luminance, a property of low luminance degradation during PDP driving, and chromaticity y comparable to that of BAM:Eu. The present invention is the phosphor that is represented by the general formula xAO.y | 03-19-2009 |
20090200945 | PHOSPHOR AND LIGHT-EMITTING DEVICE - The present invention provides a phosphor having high luminance, a property of low luminance degradation during driving of a light-emitting device, and chromaticity y comparable to that of BAM:Eu. The present invention is a phosphor represented by the general formula aAO.bEuO.DO.cSiO | 08-13-2009 |
20090218926 | METHOD OF MANUFACTURING BLUE SILICATE PHOSPHOR, AND BLUE SILICATE PHOSPHOR AND LIGHT-EMITTING DEVICE - The present invention provides a method of manufacturing a blue silicate phosphor having high luminance and a chromaticity y comparable to or lower than that of BAM:Eu. The present invention is a method of manufacturing a blue silicate phosphor represented by the general formula aAO.bEuO.(Mg | 09-03-2009 |
20100052506 | BLUE PHOSPHOR, LIGHT-EMITTING DEVICE, AND PLASMA DISPLAY PANEL - The present invention provides a blue phosphor having high luminance and showing less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor that includes: an alkaline earth metal aluminate represented by a general formula aBaO.bSrO.(1−a−b)EuO.cMgO.dAlO | 03-04-2010 |
20100141113 | BLUE PHOSPHOR, LIGHT-EMITTING DEVICE, AND PLASMA DISPLAY PANEL - The present invention provides a blue phosphor that exhibits high luminance and shows less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor represented by the general formula aBaO.bSrO.(1−a−b)EuO.cMgO.dAlO | 06-10-2010 |
20100156266 | GAS DISCHARGE LIGHT EMITTING PANEL - A gas discharge light emitting panel is provided that prevents deterioration in display properties of the panel, which accompanies changes in light-emitting properties of phosphors. It includes a front panel and a rear panel that are disposed to oppose each other, with a discharge space being interposed therebetween, and a phosphor layer that is disposed above a principal surface located on the discharge space side of the rear panel and that emits light by being irradiated with ultraviolet rays generated in the discharge space. The phosphor layer contains first and second phosphors in which the changes in at least one property selected from luminance and chromaticity, which accompany driving of the panel, occur in the opposite directions to each other. | 06-24-2010 |
20100164360 | BLUE PHOSPHOR, LIGHT-EMITTING DEVICE, AND PLASMA DISPLAY PANEL - The present invention provides a phosphor having high luminance, a property of low luminance degradation during driving of a light-emitting device and manufacturing processes, and chromaticity y in PDP comparable to that of BAM:Eu. The present invention is the phosphor represented by the general formula xSrO.yEuO.MgO.zSiO | 07-01-2010 |
20100237764 | BLUE PHOSPHOR, AND LIGHT-EMITTING DEVICE USING THE SAME - The blue phosphor of the present invention includes ZrO | 09-23-2010 |
20100237765 | BLUE PHOSPHOR, AND LIGHT-EMITTING DEVICE USING THE SAME - The blue phosphor of the present invention is represented by the general formula aBaO.bSrO.(1−a−b)EuO.cMgO.dAlO | 09-23-2010 |
20100259158 | PLASMA DISPLAY PANEL - A plasma display panel ( | 10-14-2010 |
20100259466 | PLASMA DISPLAY PANEL - The present invention aims to improve efficiency of a PDP by providing a material suitable for improving a secondary electron emission coefficient of the PDP. In order to achieve the aim, in a PDP | 10-14-2010 |
20110068680 | PHOSPHOR, 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: aYO | 03-24-2011 |
20110163657 | PHOSPHOR, METHOD FOR PRODUCING THE SAME, AND LIGHT-EMITTING DEVICE - The present invention provides a phosphor with less luminance degradation that includes an oxide that is excellent in chemical stability and allows the electrostatic charge of the phosphor surface to shift toward positive direction. The present invention is a phosphor including a phosphor body and a composite oxide on at least a part of the surface of the phosphor body. The composite oxide contains M, Sn, and O, and M is at least one element selected from the group consisting of Ca, Sr, and Ba. | 07-07-2011 |
20110175554 | PLASMA DISPLAY PANEL - The present invention aims to provide a plasma display panel that can be driven at low voltage and can offer favorable image display performance. In order to achieve the aim, on a surface of the front panel | 07-21-2011 |
20110193474 | PLASMA DISPLAY PANEL - A material suitable for improving the secondary electron emission coefficient of PDPs is provided to thereby enable a PDP to operate at a higher efficiency. Provided is a PDP ( | 08-11-2011 |
20110198985 | CRYSTALLINE COMPOUND, MANUFACTURING METHOD THEREFOR AND PLASMA DISPLAY PANEL - The present invention aims to drive a PDP at low voltage by providing a material with a high secondary electron emission coefficient under a practical manufacturing condition. In order to achieve the aim, a crystalline oxide selected from the group consisting of CaSnO | 08-18-2011 |
20120181480 | BLUE PHOSPHOR, LIGHT-EMITTING DEVICE, AND PLASMA DISPLAY PANEL - The present invention provides a blue phosphor that exhibits high luminance and shows less luminance degradation during driving of a light-emitting device. The present invention is a blue phosphor represented by the general formula aBaO.bSrO.(1−a−b)EuO.cMgO.dAlO | 07-19-2012 |
20120299461 | PLASMA DISPLAY PANEL AND GREEN PHOSPHOR LAYER - The present disclosure is a plasma display panel including a green phosphor layer. In this plasma display panel, the green phosphor layer includes a phosphor represented by a general formula: aYO | 11-29-2012 |
20130200775 | PLASMA DISPLAY PANEL - Provided is a high-efficiency plasma display panel having short decay time and high luminance and color purity. The plasma display panel includes a green phosphor layer emitting visible light when excited with vacuum ultraviolet rays, in which the green phosphor layer is formed of a green phosphor containing 30% by weight or more and 60% by weight or less of a phosphor represented by a general formula: dZnO.(2−d)MnO.eSiO | 08-08-2013 |
20130221276 | YTTRIUM-ALUMINUM-GARNET-TYPE PHOSPHOR - It is an object to provide phosphors with high luminance. It also is an object to provide phosphors with less decrease in luminance due to a reduction in particle diameter. A first phosphor is represented by a general formula: aYO | 08-29-2013 |
20140103795 | PLASMA DISPLAY PANEL AND PHOSPHOR - A plasma display panel having a short decay time, high luminance, and high efficiency is provided. The plasma display panel includes a green phosphor layer that emits visible light when excited with vacuum ultraviolet rays. The green phosphor layer contains a green phosphor represented by the general formula aBaO·(2-a)EuO·bMgO·cSiO2·fCaCl | 04-17-2014 |
20140152173 | RARE EARTH ALUMINUM GARNET TYPE PHOSPHOR AND LIGHT-EMITTING DEVICE USING THE SAME - The present invention provides a new phosphor with a controllable emission wavelength without using a number of rare and expensive raw materials in forming the composition. The phosphor includes a compound including a fluorescent ion and having a garnet structure including a rare earth element, aluminum, and oxygen. The compound has such a composition that a combination of the rare earth element and the aluminum of the compound is partially replaced with a combination of alkaline earth metal and zirconium (Zr) or alkaline earth metal and hafnium (Hf). | 06-05-2014 |
20140285997 | PHOSPHOR, LIGHT-EMITTING DEVICE, IMAGE PICKUP DEVICE, LIQUID CRYSTAL DISPLAY DEVICE, LIGHTING DEVICE, AND VEHICLE - The present disclosure provides a (Ba | 09-25-2014 |
20140339567 | LIGHT-EMITTING DEVICE - Provided is a high-efficiency light-emitting device. Further, provided is a light-emitting device with high efficiency and less variation in the color temperature of emitted white light in the case of configuring, for example, a white light-emitting device combining a blue LED and a phosphor layer. The light-emitting device includes a phosphor layer that emits light having a predetermined wavelength, and the phosphor layer contains at least one selected from the group consisting of a phosphor represented by a general formula: | 11-20-2014 |
20150055358 | YELLOW FLUORESCENT SUBSTANCE, LIGHT-EMITTING DEVICE, ILLUMINATION DEVICE, AND VEHICLE - The present invention provides an oxynitride silicate fluorescent substance capable of output a light having a high luminance even when irradiated by an exciting light having a high energy density. The present invention is a yellow fluorescent substance represented by a chemical formula (Ba | 02-26-2015 |
20150060916 | LIGHT SOURCE DEVICE, ILLUMINATING DEVICE COMPRISING THE SAME, AND VEHICLE - A light source device is provided. The light source device comprises a semiconductor light-emitting element; and a wavelength conversion member for converting a wavelength of a light emitted from the semiconductor light-emitting element. The semiconductor light-emitting element has a light-emitting peak wavelength of not less than 380 nanometers and not more than 420 nanometers. The light emitted from the semiconductor light-emitting element has a light energy density of not less than 0.2 kW/cm | 03-05-2015 |