Backlight light-emitting diode (LED) flat light source

A technology of flat light source and light diffusion plate, which is applied in the field of LED light source, can solve the problem of high cost, and achieve the effect of low cost, high light output efficiency, and beautiful appearance

Inactive Publication Date: 2014-02-19
XIAN JINNUO PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gold and silver are too expensive, so heat sinks are currently mainly made of aluminum

Method used

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  • Backlight light-emitting diode (LED) flat light source
  • Backlight light-emitting diode (LED) flat light source
  • Backlight light-emitting diode (LED) flat light source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] refer to figure 1 , is a back-emitting LED panel light source with a modular structure of the present invention, mainly including a frame 2 , a heat dissipation bottom plate 1 and a light diffusion plate 8 . The lower side of the frame 2 is engaged with the light diffusion plate 8 , and the upper side of the frame 2 is engaged with the heat dissipation bottom plate 1 , on which the heat dissipation bottom plate 1 is fixed with an aluminum substrate 4 , and a plurality of LED light source chips 3 are surface-mounted longitudinally on the aluminum substrate 4 . The power of the LED light source chip 3 is selected from 0.06W to 0.5W. The number of longitudinal surface-mounted LED light source cores 3 on the aluminum substrate 4 can be determined according to the light distribution design. The power module 7 is fixed inside the frame 2 .

[0019] refer to figure 2 , the heat dissipation bottom plate 1 is formed by splicing a plurality of clamped aluminum-shaped plates. ...

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PUM

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Abstract

The invention relates to a light-emitting diode (LED) light source, and discloses a backlight LED flat light source, which is characterized by comprising a frame, a light diffusion clamped on the lower side of the frame, a radiating base plate clamped on the upper side of the frame, and an aluminum substrate arranged on the radiating base plate, wherein the aluminum substrate is provided with a plurality of LED light source chips. The backlight LED flat light source is made of aluminum sections wholly, has a good radiating effect and a modular structure, is simple in luminous intensity distribution design, simple in assembly and expansion, easy to produce, low in cost, high in secondary light emitting efficiency, attractive and elegant in appearance, and easy to promote and apply. The backlight LED flat light source has the characteristics of good radiating effect, high secondary light emitting efficiency, simple luminous intensity distribution design, simple assembly and expansion, convenience for production, low cost, attractive and elegant appearance, and suitability for promotion and application.

Description

technical field [0001] The invention relates to an LED light source, in particular to a back-emitting LED flat panel light source. Background technique [0002] LED is the abbreviation of Light Emitting Diode in English, and it is translated as "light emitting diode" in Chinese. It uses a solid semiconductor chip as a light-emitting material. When a forward voltage is applied to both ends, the carriers in the semiconductor recombine and release excess energy. Photon emission produces visible light. LED is an electronic device with diode characteristics that can convert electrical energy into light energy. Different light-emitting diodes can emit light of different wavelengths from infrared to ultraviolet light. LED light sources have high luminous efficiency. At present, the luminous efficacy of high-power LEDs can reach 140 lumens / watt, and the long-term development can reach 150-200 lumens / watt. Efficiency is 50-70 lumens / watt, sodium lighting effect is 90-140 lumens / wat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V5/08F21V21/00F21V29/00F21Y101/02F21V29/50
Inventor 胡焕性李文辉王琦
Owner XIAN JINNUO PHOTOELECTRIC TECH
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