Patent application number | Description | Published |
20090026916 | WHITE LIGHT-EMITTING LAMP, BACKLIGHT USING SAME, DISPLAY AND ILLUMINATING DEVICE - A white light-emitting lamp ( | 01-29-2009 |
20090097233 | LIGHT-EMITTING DEVICE, BACKLIGHT USING SAME, AND LIQUID CRYSTAL DISPLAY - A light-emitting device includes a semiconductor light-emitting element arranged on a substrate having internal wiring, a reflector arranged around the semiconductor light-emitting element, and a light-emitting portion, filled in the reflector, having a phosphor which emits visible light when excited by light from the semiconductor light-emitting element. Electrical conduction to the light-emitting element is obtained via the internal wiring of the substrate and the reflector. | 04-16-2009 |
20090115936 | BACKLIGHT AND LIQUID CRYSTAL DISPLAY USING SAME - A backlight unit | 05-07-2009 |
20090154195 | WHITE LIGHT-EMITTING DEVICE, METHOD FOR MANUFACTURING SAME, BACKLIGHT USING SAME, AND LIQUID CRYSTAL DISPLAY - A white light-emitting device | 06-18-2009 |
20090166652 | White LED, Backlight Using the Same, and Liquid Crystal Display Device - Disclosed are a white LED, which has color reproducibility comparable with that of a cold-cathode tube and improved brightness, and a backlight and a liquid crystal display device comprising the white LED. The white LED comprises at least one light emitting element selected from ultraviolet light emitting diodes, purple light emitting diodes, ultraviolet light emitting lasers, and purple light emitting lasers, and a phosphor layer. The phosphor layer comprises a green phosphor satisfying formula 1, a blue phosphor satisfying formula 2 or 3, and a red phosphor satisfying formula 4 or 5:
| 07-02-2009 |
20100113254 | METHOD FOR PRODUCING TUNGSTEN TRIOXIDE POWDER FOR PHOTOCATALYST, TUNGSTEN TRIOXIDE POWDER FOR PHOTOCATALYST, AND PHOTOCATALYST PRODUCT - A method for producing a tungsten trioxide powder for a photocatalyst according to the present invention is characterized by comprising a sublimation step for obtaining a tungsten trioxide powder by subliming a tungsten metal powder or a tungsten compound powder by using inductively coupled plasma process in an oxygen atmosphere, and a heat treatment step for heat-treating the tungsten trioxide powder obtained in the sublimation step at 300° C. to 1000° C. for 10 minutes to 2 hours in an oxidizing atmosphere. A tungsten trioxide powder which is obtained by the method for producing a tungsten trioxide powder for a photocatalyst according to the present invention has excellent photocatalytic performance under visible light. | 05-06-2010 |
20100204040 | VISIBLE-LIGHT-RESPONSIVE PHOTOCATALYST POWDER, METHOD OF MANUFACTURING THE SAME, AND VISIBLE-LIGHT-RESPONSIVE PHOTOCATALYTIC MATERIAL, PHOTOCATALYTIC COATING MATERIAL AND PHOTOCATALYTIC PRODUCT EACH USING THE SAME - A visible-light-responsive photocatalyst powder includes a tungsten oxide powder. When the tungsten oxide powder is measured by X-ray diffractometry, (1) among intensity ratios of a peak A (2θ=22.8 to 23.4°), a peak B (2θ=23.4 to 23.8°), a peak C (2θ=24.0 to 24.25°), and a peak D (2θ=24.25 to 24.5°), an A/D ratio and a B/D ratio each fall within a range of 0.5 to 2.0, and a C/D ratio falls within a range of 0.04 to 2.5, (2) an intensity ratio (E/F) of a peak E (2θ=33.85 to 34.05°) to a peak F (2θ=34.05 to 34.25°) falls within a range of 0.1 to 2.0, and (3) an intensity ratio (G/H) of a peak G (2θ=49.1 to 49.7°) to a peak H (2θ=49.7 to 50.3°) falls within a range of 0.04 to 2.0, and the tungsten oxide powder has a BET specific surface area in a range of 1.5 to 820 m | 08-12-2010 |
20100204041 | VISIBLE-LIGHT-RESPONSIVE PHOTOCATALYST POWDER, AND VISIBLE-LIGHT-RESPONSIVE PHOTOCATALYTIC MATERIAL, PHOTOCATALYTIC COATING MATERIAL AND PHOTOCATALYTIC PRODUCT EACH USING THE SAME - A visible-light-responsive photocatalyst powder includes a tungsten oxide powder. The tungsten oxide powder has color whose a* is −5 or less, b* is −5 or more, and L* is 50 or more when the color of the powder is expressed by an L*a*b* color system. Further, the tungsten oxide powder has a BET specific surface area in a range of 11 to 820 m | 08-12-2010 |
20100237361 | WHITE LIGHT-EMITTING LAMP FOR ILLUMINATION AND ILLUMINATING DEVICE USING THE SAME - A white light emitting lamp | 09-23-2010 |
20100322275 | WHITE LIGHT-EMITTING LAMP AND ILLUMINATING DEVICE USING THE SAME - A white light-emitting lamp ( | 12-23-2010 |
20110006325 | PHOSPHOR AND LED LIGHT-EMITTING DEVICE USING THE SAME - An LED light emitting device is provided that has high color rendering properties and is excellent color uniformity and, at the same time, can realize even luminescence unattainable by conventional techniques. A phosphor having a composition represented by formula: (Sr | 01-13-2011 |
20110006334 | WHITE LED LAMP, BACKLIGHT, LIGHT EMITTING DEVICE, DISPLAY DEVICE AND ILLUMINATION DEVICE - A white LED lamp including: a conductive portion; a light emitting diode chip mounted on the conductive portion, for emitting a primary light having a peak wavelength of 360 nm to 420 nm; a transparent resin layer including a first hardened transparent resin, for sealing the light emitting diode chip; and a phosphor layer covering the transparent resin layer, the phosphor layer being formed by dispersing a phosphor powder into a second hardened transparent resin, and the phosphor powder receiving the primary light and radiating a secondary light having a wavelength longer than that of the primary light. An energy of the primary light contained in the radiated secondary light is 0.4 mW/lm or less. In the white LED lamp, a backlight, and an illumination device using the white LED lamp an amount of UV light to be contained in the released light and an amount of heat to be generated from the lamp are decreased to be small. | 01-13-2011 |
20110024684 | SOLID SCINTILLATOR, RADIATION DETECTOR, AND X-RAY TOMOGRAPHIC IMAGING APPARATUS - The solid scintillator according to the present invention is expressed by the following formula (1): | 02-03-2011 |
20110031523 | WHITE LIGHT EMITTING DEVICE, BACKLIGHT, LIQUID CRYSTAL DISPLAY DEVICE, AND ILLUMINATING DEVICE - A white light emitting device includes a blue light emitting diode chip that emits blue light in a specific wavelength band, a first resin layer that seals the blue light emitting diode chip and includes a cured product of silicone resin, and a second resin layer that covers the first resin layer and includes phosphor powder, which absorbs the blue light and emits light in a specific wavelength band, and a cured product of transparent resin. The phosphor powder has a composition represented by the following Formula (1): | 02-10-2011 |
20110073899 | WHITE LIGHT SOURCE, BACKLIGHT, LIQUID CRYSTAL DISPLAY APPARATUS, AND ILLUMINATING APPARATUS - A white light source includes: an insulating substrate; a light-emitting diode chip provided on the insulating substrate and that emits ultraviolet light with a wavelength of 330 nm to 410 nm; and a phosphor layer formed to cover the light-emitting diode chip, including a red emitting phosphor, a green emitting phosphor, and a blue emitting phosphor as a phosphor, and the phosphors are dispersed in a cured transparent resin, wherein when it is assumed that the shortest distance between a surface of the phosphor layer and a peripheral portion of the light-emitting diode chip is t(mm) and the mean free path defined by the following expression (1) is L(mm), the t and L satisfy 3.2≦t/L. | 03-31-2011 |
20130010456 | WHITE LED LAMP, BACKLIGHT, LIGHT EMITTING DEVICE, DISPLAY DEVICE AND ILLUMINATION DEVICE - A white LED lamp including: a conductive portion; a light emitting diode chip mounted on the conductive portion, for emitting a primary light having a peak wavelength of 360 nm to 420 nm; a transparent resin layer including a first hardened transparent resin, for sealing the light emitting diode chip; and a phosphor layer covering the transparent resin layer, the phosphor layer being formed by dispersing a phosphor powder into a second hardened transparent resin, and the phosphor powder receiving the primary light and radiating a secondary light having a wavelength longer than that of the primary light. An energy of the primary light contained in the radiated secondary light is 0.4 mW/Im or less. | 01-10-2013 |