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Luminescence unit

A technology of light-emitting units and light-emitting diodes is applied in the field of light-emitting units with fluorescent materials to achieve the effects of improving light uniformity and saving costs

Inactive Publication Date: 2011-08-10
GIGNO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, when the fluorescent layer 14 of the prior art is arranged, the whole layer of fluorescent material is often directly arranged on the entire light-emitting side of the light-emitting unit 1, but because the light-emitting diode 13 is a point light source, and part of the position of the fluorescent layer 14 may not be irradiated by the light of the light emitting diode 13, or only a small amount of light is irradiated. In this way, the problem of waste of fluorescent materials may be caused

Method used

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  • Luminescence unit
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Examples

Experimental program
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Effect test

no. 1 example

[0049] Please also refer to Figure 2A and Figure 2B ,in Figure 2A Showing the substrate and fluorescent blocks in the light emitting unit of the first embodiment of the present invention, Figure 2B A side view of the lighting unit is then displayed. The light emitting unit 2 includes a substrate 21 , a plurality of fluorescent blocks 22 and a first light emitting diode 23 . Wherein, the light emitting unit 2 may be a lighting unit, a backlight module of a liquid crystal display device, a traffic signal, or a light source unit of other electronic devices.

[0050] The substrate 21 is at least partially transparent, that is, the substrate 21 may have a transparent part and a non-transparent part. Of course, the substrate 21 can also be completely transparent. Wherein, the material of the transparent part includes, for example, glass, or sapphire, or quartz, or plastic, or polymer material, while the material of the non-transparent part includes, for example, plastic, or...

no. 2 example

[0057] Such as Figure 3A As shown, the light-emitting unit 2a is different from the light-emitting unit 2 in that the light-emitting unit 2a also includes a first reflective layer 24, wherein the first reflective layer 24 can be a part of the substrate 21, or as described in this embodiment, an additional The first reflective layer 24 is attached to the surface 212 of the substrate 21 .

[0058] The first reflective layer 24 is arranged on the surface 212 of the substrate 21, wherein the reflection spectrum of the material of the first reflective layer 24 can be the ultraviolet light band (200-400nm), or the visible light blue light band (400-480nm) or the full visible light band (400nm). -780nm), and the reflectivity can be greater than 50%. Wherein, the material of the first reflective layer 24 can utilize aluminum oxide (Al 2 o 3 ), titanium dioxide (TiO 2 ) or barium sulfate (BaSO 4 ) and other materials are formed on the surface 212 of the substrate 21 by coating or...

no. 3 example

[0062] The third embodiment of the present invention further describes and applies to the installation position of the first light emitting diode of the light emitting unit of the second embodiment. Figure 4A A light emitting unit 3 according to the third embodiment of the present invention is shown, which includes a substrate 31 , a plurality of fluorescent blocks 32 and a first light emitting diode 33 . Different from the light emitting unit 2 of the first embodiment, the fluorescent block 32 is disposed on the surface 311 of the substrate 31, the first light emitting diode 33 is disposed on the other surface 312 of the substrate 31, and the first light emitting unit 3 The reflective layer 34 covers at least part of the fluorescent block 32 . Here, take the first reflective layer 34 covering all the fluorescent blocks 32 as an example. Wherein, the first light emitting diode 33 can be disposed on the substrate 31 by means of wire bonding, flip chip bonding or surface mount...

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Abstract

The invention relates to a luminescence unit, comprising a substrate, a plurality of fluorescence blocks and a first luminescence diode, wherein the fluorescence blocks are arranged on the substrate in a one-dimension or two-dimension arrangement; and the first luminescence diode emits light rays to at least one fluorescence block; a first reflective layer is arranged on one surface of the substrate, the fluorescence blocks are arranged on the substrate through the first reflective layer or the first reflective layer surrounds the fluorescence blocks so that the fluorescence blocks are arranged on the substrate. The fluorescence blocks of the invention are arranged on the substrate in form of block, the relative intensity of different color lights of different luminescence diodes and the color temperature of the luminescence can be adjusted. Moreover each fluorescence block can be respectively different fluorescence materials, and match the corresponding first luminescence diode to send the needed color light. Each fluorescence block does not need to mix different fluorescence materials in a single fluorescence block, thereby improving the light evenness of the luminescence unit.

Description

technical field [0001] The invention relates to a light emitting unit, in particular to a light emitting unit with fluorescent material. current technology [0002] For human beings, the light-emitting device used in the lighting field is already one of the indispensable electronic products. With the continuous advancement of technology, light-emitting devices used in different fields are also continuously developed according to the needs. The light-emitting device It can also be applied to billboards, light sources of electronic devices or backlight sources in liquid crystal display devices. Since light emitting diodes (Light Emitting Diodes, LEDs) have the advantages of high brightness and power saving, as the technology of light emitting diodes matures gradually, its application fields are becoming more and more extensive. [0003] Please refer to figure 1 As shown, a conventional light emitting unit 1 emitting white light includes two substrates 11 , 12 , a plurality o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/15H01L27/28H01L27/32H01L33/00F21Y101/02F21V9/40F21Y115/10
Inventor 萨文志
Owner GIGNO TECH CO LTD
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