Light emitting unit

A light-emitting unit and light-emitting diode technology, which is applied in the direction of electrical components, semiconductor/solid-state device parts, semiconductor devices, etc., can solve the problems of not being able to improve the heat dissipation of light-emitting diodes, and achieve the effect of improving the heat dissipation effect

Inactive Publication Date: 2009-06-10
GIGNO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In addition, the existing technical framework cannot im

Method used

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Examples

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no. 1 example

[0045] Referring to FIG. 2 , a light-emitting unit 2 according to the first embodiment of the present invention includes a light-transmitting tube body 21 , a circuit board 22 , a plurality of LED chips 23 and at least two connecting electrodes 24 .

[0046] The transparent tube body 21 is at least partly transparent and has a closed space 211. In other words, the transparent tube body 21 can have a transparent part and a non-transparent part, which means that the transparent tube body 21 can be partly transparent and partly Opaque, of course, the light-transmitting tube body 21 can also be completely light-transmitting. The enclosed space 211 can be vacuum or filled with gas, such as inert gas or nitrogen. In addition, the closed space 211 can also be filled with a colloid or a fluid, wherein the colloid is, for example, a liquid colloid or an elastic colloid, and the fluid is, for example, an oily fluid, and the refractive index of the liquid colloid, elastic colloid or oily...

no. 2 example

[0057] Please refer to Figure 5A and Figure 5B shown, where Figure 5B It is a sectional view along the line A-A in Fig. 5A. The difference between the light emitting unit 2A of the second embodiment of the present invention and the first embodiment is that the light emitting unit 2A further includes a reflective portion and a fluorescent conversion material 26 . Wherein, the reflective portion can be a part of the light-transmitting tube body 21 , or a reflective layer 25 can be added as described in this embodiment.

[0058] In this embodiment, the reflective layer 25 is disposed on the outer surface of the transparent tube body 21 and has at least one opening 251 corresponding to a light emitting surface of the LED die 23 . The material of the reflective layer 25 is selected from one of the ultraviolet light band (200-400nm), the visible blue light band (400-480nm) or the full visible light band (400-780nm) in the reflection spectrum, and its reflectivity is at least gre...

no. 3 example

[0070] Based on the above, the light-transmitting tube body of the light-emitting unit can be formed integrally as described above, and can also be composed of at least two shell elements. Please refer to Figure 10A and Figure 10B As shown, a light-transmitting tube body 41 of the light emitting unit 4 is composed of two shell elements 412 , 413 . A plurality of LED chips 43 and two connecting electrodes 44 are also disposed on the circuit substrate 42 , and the circuit substrate 42 is sandwiched between the two housing components 412 , 413 . Wherein, a reflective layer 45 can be arranged or formed on the circuit substrate 42, and a fluorescent conversion material 46 can be arranged or formed on the casing element 412, but it is not limiting, and its variations can also refer to the above-mentioned Example. In addition, since the light-transmitting tube body 41 can have a light-transmitting portion and a non-light-transmitting portion, which means that it can be partly li...

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PUM

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Abstract

The invention relates to a luminescent unit, which comprises a light-transmitting tube body, at least one circuit substrate, a plurality of LED grains and at least two connecting electrodes, wherein the light-transmitting tube body has a hermetic space; the circuit substrate is arranged in the hermetic space of the light-transmitting tube body; the LED grains are in inverted joint or routed joint with the circuit substrate; and the connecting electrodes are arranged on at least one end of the circuit substrate and are electrically connected with the LED grains.

Description

technical field [0001] The invention relates to a light emitting unit, in particular to a light emitting unit with a closed space. Background technique [0002] Since light emitting diodes (Light Emitting Diodes, LEDs) have the advantages of high brightness and power saving, as the technology of light emitting diodes gradually matures, its application fields are becoming more and more extensive, such as lighting equipment and backlight sources. [0003] Please refer to figure 1 As shown, a conventional light-emitting unit 1 includes a circuit substrate 11 , a plurality of LED chips 12 , an encapsulant 13 and a reflective housing (lamp house) 14 . Wherein, the LED chip 12 is disposed on the circuit substrate 11 and is electrically connected to the circuit substrate 11 by wire bonding. The encapsulant 13 is a light-transmitting material and is used to protect the LED die 12 . The reflective shell 14 is used to reflect and concentrate the light emitting direction of the LED d...

Claims

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Application Information

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IPC IPC(8): H01L25/00H01L25/075H01L23/02H01L23/04H01L23/06
CPCH01L2224/8592H01L2924/181H01L2224/48091H01L2924/00014H01L2924/00012
Inventor 萨文志
Owner GIGNO TECH CO LTD
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