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Light-emitting device and backlight device using the same and assembling method

A light-emitting device and a technology of a light-emitting unit, which are applied to components of lighting devices, optical elements for changing the spectral characteristics of emitted light, and damage prevention measures for lighting devices, and can solve problems such as difficult heat removal, low and high luminance, etc. question

Active Publication Date: 2009-10-07
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention provides a light-emitting device applicable to many electronic devices and occasions, which not only has the advantage of being easy to assemble, but also solves the problem that heat is not easily removed. In addition, it can produce a more uniform light source with lower luminance to Overcoming the high luminance problem of traditional light emitting devices

Method used

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  • Light-emitting device and backlight device using the same and assembling method
  • Light-emitting device and backlight device using the same and assembling method
  • Light-emitting device and backlight device using the same and assembling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0141] Please refer to Figure 1A , 1B , which respectively show the schematic diagrams of the light emitting device with assembly and positioning function according to Embodiment 1 of the present invention under different viewing angles. The light emitting device 100 includes a light emitting unit 102 and a supporting bracket 104 . The supporting bracket 104 includes a plate body 106 and at least one positioning arm. In this embodiment, the supporting bracket 104 has two positioning arms 108 and 110 as an example for illustration. One end of the board 106 is connected to the light emitting unit 102 , and two positioning arms 108 , 110 are connected to the other end of the board 106 , and the positioning arms 108 , 110 extend toward the light emitting unit 102 . Preferably, the two positioning arms 108 , 110 are disposed symmetrically to the board body 106 .

[0142] Since the positioning arms 108 , 110 extend upward from the bottom of the board 106 , the positioning arms 10...

Embodiment 2

[0164] Please refer to Figure 4A , which is a schematic diagram of a light-emitting device with uniform luminance according to Embodiment 2 of the present invention. The light emitting device 200 includes a light emitting unit 202 , a supporting bracket 204 , a transparent package 206 and a fluorescent colloid layer 208 . The light emitting unit 202 is disposed on the supporting frame 204 . The transparent encapsulation 206 covers the light emitting unit 202 , and the outer side of the transparent encapsulation 206 has a recess. The transparent encapsulation body 206 has at least one reflective surface 206A in its concave portion. The fluorescent colloid layer 208 is disposed outside the transparent package 206 , and the fluorescent colloid layer 208 and the concave portion of the transparent package 206 form an air chamber 210 . Wherein, the reflective surface 206A of the transparent package 206 is used to guide the light generated by the light emitting unit 202 to the si...

Embodiment 3

[0211] The stacked light emitting device of this embodiment includes a main body support, at least one heat dissipation support and at least one light emitting unit, wherein the heat dissipation support is arranged on one side of the main body support, and the light emitting unit is arranged on the heat dissipation support and is electrically connected to a pair of electrode feet on the body holder. Since the main body bracket and the heat dissipation bracket carrying the light-emitting unit are combined in a stacked manner, each component can be assembled after separate processing, which not only improves the processing accuracy of the structural size, but also achieves the purpose of electrical and thermal separation. The following example illustrates.

[0212] Please refer to Figure 9A , Figure 9B , Figure 9A A schematic diagram showing a stacked light-emitting device according to Embodiment 3 of the present invention, Figure 9B draw Figure 9A An exploded view of ...

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PUM

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Abstract

A light-emitting device includes a bearing support, a light-emitting unit, a transparent packaging body and a fluorescent colloid layer. The light-emitting unit is arranged on the bearing support. The transparent packaging body covers the light-emitting unit, the outer side of the transparent packaging body has a dent, and the transparent packaging body has at least a reflecting face in the dent. The fluorescent colloid layer is covered outside the transparent packaging body, and forms an air chamber with the dent of the transparent packaging body. The reflecting face of the transparent packaging body guides the luminous ray generated by the light-emitting unit to one side wall of the fluorescent colloid layer.

Description

technical field [0001] The present invention relates to a light emitting device, and in particular to a light emitting device with uniform luminance. Background technique [0002] Light-emitting devices used for home lighting, commercial lighting, office lighting, etc., or light-emitting devices such as household electronics, automotive electronics, and industrial electronics, are nothing more than combinations of incandescent lamps, fluorescent lamps, and halogen lamps. [0003] In recent years, light-emitting diodes have been regarded as the best choice for a new generation of light-emitting devices due to their advantages such as low driving voltage, fast lighting and starting speed, no mercury pollution, no ultraviolet light emission, and solid-state packaging that is not easily broken. Furthermore, the small size of the light emitting diode can better meet the requirements of many light, thin and miniaturized application products. [0004] However, most types of light ...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V19/00F21V21/00F21V15/02F21V9/08F21Y101/02F21Y115/10
Inventor 林明德林明耀戴光佑
Owner IND TECH RES INST
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