Patent application number | Description | Published |
20100225849 | LIGHT EMITTING MODULE, BACKLIGHT USING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE - A light emitting module | 09-09-2010 |
20110109222 | LIGHT EMITTING DEVICE, AND BACKLIGHT, LIQUID CRYSTAL DISPLAY DEVICE AND ILLUMINATION DEVICE USING THE SAME - A light emitting device | 05-12-2011 |
20110116005 | LINEAR WHITE LIGHT SOURCE, AND BACKLIGHT AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A linear white light source | 05-19-2011 |
20110128466 | WHITE LED, AND BACKLIGHT AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A white LED includes a light emitting element with a light emission peak wavelength equal to or longer than 380 nm and equal to or shorter than 420 nm, and a phosphor layer containing three or more types of phosphors including at least a blue phosphor, a green phosphor, and a red phosphor and disposed in a manner to cover at least part of the light emitting element. The phosphor layer has a first phosphor layer and a second phosphor layer disposed in an opposite side of a side of the light emitting element of the first phosphor layer. In the first phosphor layer, a content of the blue phosphor in an entire phosphor contained in the first phosphor layer is equal to or less than 5 mass %, or the blue phosphor is not contained. In the second phosphor layer, a content of phosphor other than the blue phosphor in an entire phosphor contained in the second phosphor layer is equal to or less than 5 mass %, or no phosphor other than the blue phosphor is contained. | 06-02-2011 |
20120062821 | WHITE LED, BACKLIGHT USING SAME, AND LIQUID CRYSTAL DISPLAY DEVICE CONFORMING TO EBU STANDARD - In a embodiment, a white LED for a backlight of a liquid crystal display device conforming to the EBU standard includes an ultraviolet (purple) light-emitting element, and a phosphor layer which contains 1 to 10 wt % of a green phosphor including a divalent europium-activated silicate phosphor, 40 to 80 wt % of a blue phosphor including at least one selected from a divalent europium-activated halo-phosphate phosphor and a divalent europium-activated aluminate phosphor, and 10 to 50 wt % of a red phosphor including at least one selected from a europium-activated lanthanum oxysulfide phosphor and a europium-activated yttrium oxysulfide phosphor. | 03-15-2012 |
20120187824 | WHITE LIGHT EMITTING LAMP AND WHITE LED LIGHTING APPARATUS INCLUDING THE SAME - An object is to provide a white light emitting lamp in which a BGR phosphor containing blue, green and red phosphor is combined with a semiconductor light emitting element such as an LED, a deep red phosphor having a main emission peak in a longer wavelength region than a main emission peak of the red phosphor is further added so as to enhance characteristics, whereby both high luminance and high color rendering properties can be obtained. This invention provides a white light emitting lamp | 07-26-2012 |
20120206671 | WHITE LED, BACKLIGHT USING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE - Certain embodiments provide a white LED for a backlight of a liquid crystal display device, which comprises an ultraviolet (or violet) light emitting element and a phosphor layer that contains a green phosphor selected from trivalent cerium- and terbium-activated rare earth borate phosphors, a blue phosphor selected from divalent europium-activated halophosphate phosphors and divalent europium-activated aluminate phosphors, and a red phosphor selected from europium-activated lanthanum oxysulfide phosphors and europium-activated yttrium oxysulfide phosphors as the contained amounts of the respective phosphors relative to the total amount of the phosphors as follows: 35-50% by weight of the green phosphor content; 50-70% by weight of the blue phosphor content; and 1-10% by weight of the red phosphor content. | 08-16-2012 |
20120223352 | 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 | 09-06-2012 |
20150060926 | 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. | 03-05-2015 |