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Light emitting diode combination

A technology of light-emitting diodes and diodes, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., and can solve problems such as unfavorable backlighting

Inactive Publication Date: 2014-07-02
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, after the diffusion of the lens, the yellowish light will deviate more from the bluish light, resulting in more obvious yellow halos, which is not conducive to backlighting

Method used

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  • Light emitting diode combination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] see figure 1 , shows a light emitting diode combination 10 according to an embodiment of the present invention. The LED assembly 10 includes a LED 20 , a light mixing element 30 and a diffusion lens 40 .

[0013] The light emitting diode 20 includes a base 22 , a light emitting chip 24 fixed on the base 22 and a package 26 covering the light emitting chip 24 . The base 22 is made of insulating materials such as epoxy resin, silica gel or ceramics, and a groove (not shown) is provided on its top surface. The light-emitting chip 24 is made of semiconductor materials such as gallium nitride, indium gallium nitride, aluminum indium gallium nitride, etc., which can be excited by current to generate blue light. The light-emitting chip 24 is accommodated in the groove of the base 22 , and its top surface is lower than the top surface of the base 22 . The package body 26 fills the entire groove and covers the light emitting chip 24 . The package body 26 is made of transpare...

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PUM

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Abstract

Disclosed is a light emitting diode combination. The light emitting diode combination comprises a light emitting diode and a diffusion lens. The light emitting diode comprises a pedestal, a luminescence chip, a packaging body and phosphor. The light emitting diode combination further comprises a light mixing element disposed between the light emitting diode and the lens. Light emitted from the light emitting diode at a large angle and light emitted from the light emitting diode at a small angle are mixed through the light mixing element and then enter the lens. The light emitting diode combination can eliminate or decrease the yellow halo phenomenon occurring at a light emission periphery, thereby being more suitable for the illumination of a backlight module.

Description

technical field [0001] The invention relates to a combination of light emitting diodes, in particular to a combination of light emitting diodes used in a backlight module. Background technique [0002] As an emerging light source, light emitting diodes have been widely used in various applications, especially backlighting. In backlighting, in order to reduce the amount of light-emitting diodes, it is usually used with a diffuser lens, so that the light emitted by the light-emitting diodes can be emitted at a larger angle, thereby achieving the effect of large-area lighting. Light emitting diodes for lighting usually include blue chips and yellow phosphors for converting blue light. The blue light emitted by the chip excites the phosphor to emit yellow light, which is then mixed with the blue light to obtain white light. [0003] However, the existing fluorescent powder usually covers the chip in a whole layer, resulting in different paths for the blue light emitted by the ...

Claims

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Application Information

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IPC IPC(8): H01L33/58H01L33/60
CPCH01L33/58H01L33/60
Inventor 林辰翰
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD