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 |
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 |
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 |
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 |
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 |
20130200779 | 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 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 |
Patent application number | Description | Published |
20100208173 | BLUE COLOR COMPOSITION FOR COLOR FILTER, COLOR FILTER, AND COLOR IMAGE DISPLAY DEVICE - The present invention relates to color image display devices having a combination of light shutters, a color filter having color elements of at least three colors of red, green and blue corresponding to the light shutters, and a backlight for transmission illumination, where the backlight has a phosphor layer or a phosphor film, and the phosphor layer or the phosphor film has a compound having at least element M | 08-19-2010 |
20120267997 | 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 | 10-25-2012 |