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Multi-wavelength LED element and multi-wavelength luminous module

A technology of light-emitting diodes and light-emitting modules, which is applied to electrical components, optics, nonlinear optics, etc., and can solve problems such as poor uniformity

Inactive Publication Date: 2008-09-24
ZHANJING TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the distance between the crystal grains of the light source and the fluorescent material that generates the excited light, the uniformity of light mixing is not good

Method used

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  • Multi-wavelength LED element and multi-wavelength luminous module
  • Multi-wavelength LED element and multi-wavelength luminous module
  • Multi-wavelength LED element and multi-wavelength luminous module

Examples

Experimental program
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Embodiment Construction

[0020] Figure 5 It is a schematic cross-sectional view of the LED element of the present invention. The LED element 50 mainly includes an LED die 52 fixed on the cup-shaped structure of the lead frame 53 , and the die 52 is electrically connected to the cathode 53 a and the anode 53 b of the lead frame 53 through metal wires 55 . The crystal grain 52 is a light emitting diode of a nitride-based semiconductor. There is glue 56 with fluorescent material at the bottom of the crystal grain 52, so when the crystal grain 52 receives an external power supply to emit initial light, a part of the light will penetrate the transparent substrate (sapphire) of the crystal grain 52 to excite The glue 56 produces a secondary ray of fluorescent or phosphorescent light, which additionally has a spectral band different from said primary ray. The primary light and the secondary light are mixed to form a white light, and finally the white light passes through the mold member 54 and exits. Sin...

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PUM

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Abstract

The invention discloses a multi-wavelength light emitting diode element and a multi-wavelength light emitting module. The light emitting diode element comprises a packaging carrier, a light emitting diode grain which can produce initial light and a fluorescence material layer, wherein, the fluorescence material layer is arranged between the light emitting diode grain and the packaging carrier. Additionally, the fluorescence material layer is used for fixing the light emitting diode grain on the packaging carrier; or the fluorescence material layer covers the surface of the light emitting diode grain, furthermore, the surface of the fluorescence material layer and the packaging carrier are jointed together.

Description

technical field [0001] The invention relates to a multi-wavelength light-emitting diode element and a multi-wavelength light-emitting module, in particular to a light-emitting diode element capable of generating multi-wavelength light through fluorescent materials. Background technique [0002] Because light emitting diodes (light emitting diodes; LEDs) have the advantages of small size, high luminous efficiency and long life, they are considered to be the best light source for the next generation of green and energy-saving lighting. In addition, the rapid development of liquid crystal displays and the popular trend of full-color screens have made white light-emitting diodes not only used in indicator lights and large display screens, but also in a wide range of consumer electronics products, such as mobile phones and PDAs. [0003] figure 1 A schematic diagram of a conventional liquid crystal display. The light emitting diode module 20 is located on the side of the liquid...

Claims

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Application Information

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IPC IPC(8): H01L33/00H01L25/00G02F1/1335H01L33/50
CPCH01L2224/48091H01L2224/48247H01L2224/48257H01L2224/48465H01L2224/49107H01L2224/73265H01L2924/181
Inventor 曾文良陈隆欣曾坚信
Owner ZHANJING TECH SHENZHEN