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Component for light-emitting device, light-emitting device and producing method thereof

A technology for light-emitting devices and parts, which is applied to parts of lighting devices, cooling/heating devices of lighting devices, electroluminescent light sources, etc. Manufacturing cost and effect of ensuring yield

Inactive Publication Date: 2012-02-01
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are disadvantages of low yield and inferior manufacturing cost

Method used

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  • Component for light-emitting device, light-emitting device and producing method thereof
  • Component for light-emitting device, light-emitting device and producing method thereof
  • Component for light-emitting device, light-emitting device and producing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] (1) Synthesis of phosphors (raw material particles) (synthesis of YAG:Ce phosphors)

[0117] 0.14985 mol (14.349 g) of yttrium nitrate hexahydrate, 0.25 mol (23.45 g) of aluminum nitrate hexahydrate, and 0.00015 mol (0.016 g) of cerium nitrate hexahydrate were dissolved in 250 mL of distilled water to prepare a 0.4 M precursor ( precursor) solution.

[0118] The precursor solution was sprayed onto a high-frequency (RF) induced plasma flame at a rate of 10 mL / min using a two-fluid nozzle, and thermally decomposed to obtain inorganic powder particles (raw material particles).

[0119] The obtained raw material particles were analyzed by X-ray diffraction method, showing that the amorphous phase and YAP (YAlO 3 ) mixed phase of crystallization.

[0120]In addition, the average particle diameter determined by the specific surface area analysis (BET: Brunauer-Emmett-Teller) method using an automatic surface area measuring device (manufactured by Micrometritics, model Gemin...

Embodiment 2

[0143] In the process of "(3) Preparation of Ceramic Green Tape Laminates of Aluminum Oxide", except that alumina particles are not used but YAG:Ce particles (that is, ceramic green tape laminates for manufacturing YAG) are used, the same as in Example 1 A light-emitting device was produced in the same manner.

Embodiment 3

[0145] A ceramic green tape laminate of YAG was produced in the same manner as in "(2) Preparation of a ceramic green tape laminate of YAG" in Example 1, and a fluorescent layer (fluorescence body board). In addition, no ceramic green tape laminate of alumina was produced.

[0146] In addition, barium titanate particles (manufactured by Sakai Chemical Industry Co., Ltd., product number BT-03) as scattering particles were dispersed in the two liquids at a ratio of 40% by weight using an applicator. The solution obtained after mixing thermosetting silicone elastomer (manufactured by Shin-Etsu Silicone Co., Ltd., product number KER2500) is applied on a PET film with a thickness of about 500 μm, heated at 100°C for 1 hour, and then heated at 150°C for 1 hour, Thus, a reflective resin sheet is produced.

[0147] This resin sheet was formed into an outer dimension of 3.2 mm x 3.2 mm and an inner diameter of 1.6 mm x 1.6 mm using a laser cutting device. The thus-formed reflective ...

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PUM

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Abstract

The invention provides a component for a light-emitting device, a light-emitting device and a producing method thereof. The component for the light-emitting device includes a fluorescent layer that is capable of emitting fluorescent light and a housing that is connected to the fluorescent layer for housing a light-emitting diode.

Description

technical field [0001] The present invention relates to a component for a light emitting device, a light emitting device and a manufacturing method thereof. Background technique [0002] Conventionally, a YAG (yttrium aluminum garnet)-based phosphor is known as a phosphor that receives blue light and emits yellow light. When such a YAG-based phosphor is irradiated with blue light, white light can be obtained because the irradiated blue light and the yellow light emitted by the YAG-based phosphor are mixed in color. Therefore, for example, a white light-emitting diode is known in which a blue light emitting diode is covered with a YAG-based phosphor, and blue light emitted by the blue light-emitting diode is mixed with yellow light from the YAG-based phosphor to obtain white light. [0003] As such a white light-emitting diode, there is known, for example, a light-emitting device having a substrate, a semiconductor light-emitting element (LED element), and a phosphor ceramic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V9/10F21V29/00F21Y101/02F21V9/40
CPCH01L2933/0041H01L33/507H01L33/58H01L2224/48091H01L2224/73265H05B33/145H05B33/14H01L2224/45144H01L2924/00014H01L2924/00
Inventor 大薮恭也藤井宏中中村年孝伊藤久贵
Owner NITTO DENKO CORP
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