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Light emitting device and method for manufacturing the same

A light-emitting device and manufacturing method technology, applied in the direction of light-emitting materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., can solve the problems of uneven content of phosphor 400 and uneven phosphor 400, and achieve small difference in light emission, and Improvement of pass rate and improvement of mass productivity

Inactive Publication Date: 2009-04-08
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, unevenness of the phosphor 400 in the mold member 500 occurs, and the content of the phosphor 400 varies for each batch of manufacture.

Method used

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  • Light emitting device and method for manufacturing the same
  • Light emitting device and method for manufacturing the same
  • Light emitting device and method for manufacturing the same

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Embodiment Construction

[0068] In the following, in the drawings of this application, the same reference numerals denote the same or corresponding parts. In addition, in order to clarify and simplify the drawings, dimensional relationships such as lengths, dimensions, and widths in the drawings are appropriately changed and do not represent actual dimensions.

[0069] In addition, in the following drawings of this application, description is made using "resin particles", but this is for convenience. Therefore, in the structure of the light-emitting device of the present invention, the portion belonging to the "resin particles" described below may be composed of only "resin particles", may be composed of "a mixture of resin particles and inorganic material particles", or may be composed of "Inorganic material particles". Among them, the material of the resin particles is resin, and the material of the inorganic material particles is an inorganic material, and the two materials are different.

[0070] ...

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PUM

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Abstract

In a light emitting device having a light emitting element, mounted on a substrate, at least one portion of which is coated with a mold component, the mold component is provided with resin particles and or inorganic material particles, phosphor particles and a sealing resin, and phosphor particles have a specific gravity different from that of resin particles and / or the inorganic material particles, and are made from a grain-shaped phosphor which, when irradiating with excited light, emits fluorescent light having a wavelength longer than that of the excited light, with resin particles and / or the inorganic material particles and the phosphor particles being dispersed in sealing resin; thus, the present invention relates to such a light emitting device and a method for manufacturing the same.

Description

technical field [0001] The present invention relates to a light-emitting device that converts and emits at least a part of the wavelength of light emitted from a light-emitting element by a phosphor, and a method for manufacturing the same. Background technique [0002] A light-emitting device that converts the wavelength of light emitted from a semiconductor light-emitting element such as a light-emitting diode by a phosphor is small, consumes less power than an incandescent bulb, and can emit light in a color corresponding to the purpose of use. Therefore, the light-emitting device can be used as a light source for backlight of a liquid crystal display, a mobile phone or a portable information terminal, a display device used for indoor and outdoor advertisements, an indicator of various portable devices, a light switch or an OA (office automation) device. For light sources, etc., research is carried out for further improvement of efficiency or further improvement of reliab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/00H01L25/00H01L25/075H01L21/56H01L33/50H01L33/56H01L33/60H01L33/62
CPCC09K11/0883H01L2924/01021C09K11/778H01L33/56C09K11/7718H01L33/502H01L2924/09701H01L2224/48247C09K11/7771C09K11/7789C09K11/7794C09K11/7721H01L2924/01019C09K11/584C09K11/7739C09K11/02H01L2224/48257C09K11/7787H01L2224/48091C09K11/643C09K11/7795C09K11/7734Y10T428/31739Y10T428/31721Y10T428/31663Y10T428/31507Y10T428/31511Y10T428/31855Y10T428/31935C09K11/77212C09K11/77342C09K11/77348H01L2924/00014
Inventor 幡俊雄小西正宏英贺谷诚
Owner SHARP KK
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