CN1743919A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN1743919A CN1743919A CN 200510103780 CN200510103780A CN1743919A CN 1743919 A CN1743919 A CN 1743919A CN 200510103780 CN200510103780 CN 200510103780 CN 200510103780 A CN200510103780 A CN 200510103780A CN 1743919 A CN1743919 A CN 1743919A
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- Prior art keywords
- connector
- backlight module
- light emitting
- emitting diode
- led circuitboard
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- 238000003466 welding Methods 0.000 claims 1
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Planar Illumination Modules (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
This invention discloses a backlight module, which contains LED circuit board, LED and driving circuit board, wherein the LED circuit board including first and second surface with first connection head, LED connected with first connection heat, the second connection head set on driving circuit board, the second connection head can be jointed with first connection head, directly assembling driving circuit board with LED circuit board for driving the LED without wire connection.
Description
Technical field
The present invention relates to a kind of backlight module, relate in particular to a kind of backlight module that can assemble easily.
Background technology
Now, LCD generally is used for various information display devices, its primary structure can be divided into liquid crystal panel and backlight module two large divisions, and liquid crystal panel roughly comprises assemblies such as ITO conducting glass substrate, liquid crystal layer, alignment film, color filter, polaroid; Backlight module mainly comprises light source, light guide plate, prismatic lens, diffuser plate and reflector plate and blooming miscellaneous, provides light source by backlight module to liquid crystal panel, shows purpose to reach information.The sign of lcd products integral body is subjected to the reciprocal effect of all intrawares, and wherein backlight module plays an important role on screen intensity, uniformity coefficient, contrast and visual angle.
In backlight module, the light source that is adopted comprises cold cathode fluorescent lamp pipe (Cold CathodeFluorescent Lamp now; CCFL), external electrode fluorescent lamp (External Electrode FluorescentLamp; EEFL) or light emitting diode (Light Emitted Diode; LED).Wherein light emitting diode is the luminescence component of being made by semiconductor material, and assembly has two electrode terminals, applies voltage between terminal, and the combination by electronics electricity hole excites energy and disengages with the form of light.Light emitting diode has the advantages such as vibration strength that volume is little, the life-span is long, driving voltage is low, power consumption is little and good, therefore more and more comes into one's own.
In addition, in backlight module, be typically provided with drive circuit board, it is used for controlling the wherein power supply of light source.Because drive circuit board can produce high temperature, in order to reduce the influence of drive circuit board, usually drive circuit board is arranged at the back of backlight module, and drive circuit board need be connected with light source in the backlight module by various connecting lines to LCD.
Yet, utilize connecting line carry out ways of connecting in practice except that the wiring complexity, be difficult for the assembling, exist connecting line to be difficult for reason line problem fixing, that connecting line is entangled with easily toward contact.
What is more, because light emitting diode bulb or light-emitting diode (LED) module kind that present light emitting diode supplier is provided are numerous, makes light emitting diode comparatively complicated in the utilization design of backlight module.When the deviser uses the complicated light-emitting diodes pipe die of these kinds to determine, also need consider its connecting line cabling mode separately, thereby make design become complicated more.In addition, different connecting line fixed forms have also increased the difficulty of assembling.
Therefore, the packaging efficiency that how effectively solve aforementioned reason line problem, improves LCD simultaneously is the direction that those skilled in the art make great efforts.
Summary of the invention
In view of the above, the technical problem to be solved in the present invention provides a kind of backlight module, and it can exempt the puzzlement of reason line, for the deviser, except that design is easier, also can improve the dirigibility of design greatly.Backlight module provided by the present invention comprises LED circuitboard, light emitting diode and drive circuit board.
LED circuitboard has first surface and second surface, and second surface is provided with first connector (Connector).
Light emitting diode is embedded in the LED circuitboard, and itself and first connector electrically connect.
Drive circuit board has second connector, and this second connector can combine with first connector.
Wherein, first connector cooperates with second connector is concavo-convex each other, that is, if a connector is a nose, another connector is recessed end, and both are chimeric mutually.
Chimeric mutually by means of first connector and second connector can make drive circuit board and LED circuitboard electrically connect, thereby with the light emitting diode on the drive circuit board driven for emitting lights diode circuit plate.Thus, need not use connecting line, thereby exempt the puzzlement of reason line, also can increase in the backlight module and can concerning the deviser, except that design is easier, also improve the dirigibility of design greatly for the space that utilizes.
Description of drawings
For further specifying advantage of the present invention and design, the specific embodiment of the present invention is elaborated below in conjunction with accompanying drawing.
Figure 1A is the cut-open view of the present invention's one preferred implementation;
Figure 1B is the three-dimensional exploded view of the present invention's one preferred implementation primary clustering;
Fig. 2～4 are embedded into the synoptic diagram of the different embodiments in the LED circuitboard for light emitting diode among the present invention.
Description of reference numerals
1 backlight module, 111 first surfaces
10 backboards, 112 second surfaces
11 LED circuitboards, 113 first connectors
12 light emitting diodes, 121 bases
13 drive circuit boards, 122 luminous ends
14 frameworks, 131 second connectors
101 through holes, 15 heat conducting films
Embodiment
See also Figure 1A, this figure is the schematic side view of a preferred implementation of the disclosed backlight module of the present invention.Figure 1B is the decomposing schematic representation of primary clustering among Figure 1A.In the present embodiment, backlight module 1 comprises backboard 10, LED circuitboard 11, light emitting diode 12 and drive circuit board 13.
Backboard 10 (back bezel) can be made by aluminium, plastics or various material, and its periphery has sidewall, and accommodation space as the formation shallow slot.In generalized case, backlight module also has framework (frame) 14, and it can be assembled with backboard 10, and can will be placed in wherein as LED circuitboard 11, light emitting diode 12 or other optical module (as diffuser plate, reflector plate).In addition, in the present embodiment, backboard 10 also has the through hole 101 that connects backboard.
If being designed to electrode pin with base 121 is welded in and then is particularly suitable on the second surface 112 being used with first connector 113 of the present invention.
Because, the first surface 111 that is divided into LED circuitboard 11 separately when base 121 and first connector 113 is during with second surface 112,11 need of LED circuitboard are selected multilayer board or double-sided printed-circuit board for use, by via conducting first surface 111 and second surface 112, this mode is comparatively complicated again.In other words, preferred situation is that the base 121 and first connector 113 are located at same wiring surface.Therefore, in the present embodiment, base 121 is welded on the second surface 112 of LED circuitboard 11, and first connector 113 also is located on the second surface 112.
Moreover, because the circuit in the base 121 often is the main thermal source of light emitting diode 12, when on the second surface 112 that base 121 is welded in LED circuitboard 11 and when making its luminous end 122 be exposed to outside the first surface, base 121 and luminous end 122 lay respectively at the both sides of LED circuitboard 11, the unlikely light extraction efficiency that influences backlight module integral body of the heat that base 121 is distributed.Under preferable situation, also can between backboard 10 and light emitting diode 12, heat conducting film 15 be set, disperse heat that base 121 was shed is imported in the backboard 10.
For above-mentioned reasons, in backlight module of the present invention, be particularly suitable for the base 121 of light emitting diode 12 is welded on the second surface 112.
Need to prove especially, can adopt various embodiment that light emitting diode 12 is embedded in the LED circuitboard 11, see also Fig. 2, Fig. 3 and Fig. 4.Though in these embodiments, be that example describes all with a light emitting diode, in practice, in backlight module, can install a plurality of light emitting diodes, be not limited only to a light emitting diode.
As shown in Figure 2, LED circuitboard 11 can have hole, light emitting diode 12 can be embedded in this hole.
And as shown in Figure 3, LED circuitboard 11 can have groove, light emitting diode 12 can be arranged in this groove.
And for example shown in Figure 4, LED circuitboard 11 can comprise two sub-circuit boards, light emitting diode 12 can be arranged between described two sub-circuit boards, that is, and by two sub-circuit board clampings.
Please consult Figure 1A and Figure 1B once more.Wherein, drive circuit board 13 is for being provided with the circuit board of power drives chip, and it can be in order to the power supply of control to light emitting diode 12 power supplies, promptly in order to activate the light source of backlight module 1.And, being provided with second connector 131 on the surface of drive circuit board 13, this second connector 131 cooperates with first connector 113 is concavo-convex each other.For example, in the present embodiment, first connector 113 is for having the socket of groove, and 131 plugs for giving prominence to of second connector can be inserted in first connector 113.
By above stated specification as can be known, in the present invention, LED circuitboard and drive circuit board are directly chimeric and realize both electric connections by means of first connector and second connector.It need not use connecting line, thereby can solve the problem of being entangled with of connecting line.In addition, the deviser also needn't consider the fixed form and the trace configurations mode of connecting line, can reduce the required cabling space that takies of connecting line whereby, having increased can be for the space that utilizes in the backlight module, concerning the deviser, except that design is easier, also improved the dirigibility of design greatly.
Moreover, when backlight module of the present invention is assembled, can carry out according to the following steps:
By above-mentioned steps as can be known, backlight module assembling process of the present invention is very easy, only needs according to the position of first connector second connector embedding of drive circuit board can be finished the assembling of drive circuit board.Except easy to assembly, also can should be assembled in relevant position on the backboard, thereby have positioning function simultaneously by the first connector display driver circuit plate.
In sum, compared with prior art, the present invention has significant progress really.Obviously, those skilled in the art after having read this instructions and above each embodiment, every advantage or the function that can understand design of the present invention more and be had.
Below only the present invention is had been described in detail by a preferred implementation; obviously, this is not to limit the scope of the present invention, and those skilled in the art all can understand; under the prerequisite that does not exceed design of the present invention and protection domain, can make some remodeling to the present invention.
Claims (14)
1. backlight module comprises:
Backboard with through hole;
LED circuitboard, it is set on the described backboard, and has first surface and second surface, is provided with first connector on this second surface, and described first connector passes in the through hole of described backboard;
Light emitting diode, it is welded on the described second surface of described LED circuitboard, and its luminous end is exposed to the described first surface outside; And
Drive circuit board, it is provided with second connector, and this second connector and described first connector are chimeric, signal is transferred to described LED circuitboard.
2. backlight module comprises:
Backboard with through hole;
LED circuitboard, it is set on the described backboard, and has first surface and second surface, and this second surface is provided with first connector, and described first connector passes in the through hole of described backboard;
Light emitting diode, it is set on the described LED circuitboard, and electrically connects with described first connector; And
Drive circuit board, it has second connector, and this second connector combines with described first connector.
3. backlight module as claimed in claim 2, wherein, described LED circuitboard has hole, and described light emitting diode is embedded in this hole.
4. backlight module as claimed in claim 2, wherein, described first connector is a socket, this socket is outwards outstanding from the described second surface of described LED circuitboard.
5. backlight module as claimed in claim 2, wherein, described second connector is a plug, this plug is outwards outstanding from the surface of described drive circuit board.
6. backlight module as claimed in claim 2, wherein, described backlight module also has framework, and this framework and the combination of described backboard are with ccontaining described LED circuitboard and described light emitting diode.
7. backlight module as claimed in claim 2 wherein, is provided with heat conducting film between described backboard and the described light emitting diode.
8. backlight module comprises:
LED circuitboard, it has first surface and second surface, and described second surface is provided with first connector;
Light emitting diode, it is set on the described LED circuitboard, and electrically connects with described first connector; And
Drive circuit board, it has second connector, and this second connector combines with described first connector.
9. backlight module as claimed in claim 8, wherein, described LED circuitboard has hole, and described light emitting diode is embedded in this hole.
10. backlight module as claimed in claim 8, wherein, described LED circuitboard has groove, and described light emitting diode is set in this groove.
11. backlight module as claimed in claim 8, wherein, described LED circuitboard has two sub-circuit boards, and described light emitting diode is set between described two sub-circuit boards.
12. backlight module as claimed in claim 8, wherein, described light emitting diode combines with described LED circuitboard in the mode of welding.
13. backlight module as claimed in claim 8, wherein, described first connector is a socket, and this socket is outwards outstanding from the second surface of described LED circuitboard.
14. backlight module as claimed in claim 8, wherein, described second connector is a plug, and this plug is outwards outstanding from the surface of described drive circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101037803A CN100365486C (en) | 2005-09-23 | 2005-09-23 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101037803A CN100365486C (en) | 2005-09-23 | 2005-09-23 | Backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1743919A true CN1743919A (en) | 2006-03-08 |
| CN100365486C CN100365486C (en) | 2008-01-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101037803A Expired - Fee Related CN100365486C (en) | 2005-09-23 | 2005-09-23 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100365486C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7796208B2 (en) | 2007-10-30 | 2010-09-14 | Au Optronics Corp. | Display device and backlight apparatus thereof comprising specific fixing member |
| CN101634441B (en) * | 2008-07-21 | 2011-03-16 | 奇力光电科技股份有限公司 | Light source module with light emitting diodes, backlight module and liquid crystal display using same |
| US8212961B2 (en) | 2007-06-28 | 2012-07-03 | Lg Display Co., Ltd. | Backlight for liquid crystal display device having a first FPCB mounting a plurality of light emitting diodes connecting a second FPCB via a through hole formed on a lower cover |
| CN102734699A (en) * | 2011-04-14 | 2012-10-17 | 乐金显示有限公司 | Backlight unit and liquid crystal display device including the same |
| US8416360B2 (en) | 2008-11-27 | 2013-04-09 | Lg Display Co., Ltd. | Liquid crystal display |
| WO2013071527A1 (en) * | 2011-11-18 | 2013-05-23 | 深圳市华星光电技术有限公司 | Backlight system |
| WO2013071547A1 (en) * | 2011-11-18 | 2013-05-23 | 深圳市华星光电技术有限公司 | Flat-panel display device and stereo display device |
| CN103542296A (en) * | 2013-10-24 | 2014-01-29 | 南京中电熊猫液晶显示科技有限公司 | LED light bar and direct type LED backlight module |
| US8976312B2 (en) | 2011-11-18 | 2015-03-10 | Shenzhen China Star Optoeletronics Technology Co., Ltd. | Flat panel display device and stereoscopic display device |
| US8985796B2 (en) | 2011-11-18 | 2015-03-24 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight system of display device with printed circuit board separate from and mounted to LED substrate with support pillars |
| WO2018149239A1 (en) * | 2017-02-20 | 2018-08-23 | 维沃移动通信有限公司 | Electronic apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230587B (en) * | 2011-06-21 | 2013-03-20 | 昆山龙腾光电有限公司 | LED (light-emitting diode) light bar, backlight module and liquid crystal display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2585273Y (en) * | 2002-12-12 | 2003-11-05 | 葛世潮 | LED illumination device |
| CN100394274C (en) * | 2003-06-04 | 2008-06-11 | 友达光电股份有限公司 | LED assembled light source and light negative module |
| US6966674B2 (en) * | 2004-02-17 | 2005-11-22 | Au Optronics Corp. | Backlight module and heat dissipation structure thereof |
| CN100373234C (en) * | 2004-11-29 | 2008-03-05 | 友达光电股份有限公司 | Backlight module |
-
2005
- 2005-09-23 CN CNB2005101037803A patent/CN100365486C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8212961B2 (en) | 2007-06-28 | 2012-07-03 | Lg Display Co., Ltd. | Backlight for liquid crystal display device having a first FPCB mounting a plurality of light emitting diodes connecting a second FPCB via a through hole formed on a lower cover |
| US7796208B2 (en) | 2007-10-30 | 2010-09-14 | Au Optronics Corp. | Display device and backlight apparatus thereof comprising specific fixing member |
| CN101634441B (en) * | 2008-07-21 | 2011-03-16 | 奇力光电科技股份有限公司 | Light source module with light emitting diodes, backlight module and liquid crystal display using same |
| US8416360B2 (en) | 2008-11-27 | 2013-04-09 | Lg Display Co., Ltd. | Liquid crystal display |
| TWI410709B (en) * | 2008-11-27 | 2013-10-01 | Lg Display Co Ltd | Liquid crystal display |
| US9016921B2 (en) | 2011-04-14 | 2015-04-28 | Lg Display Co., Ltd. | Backlight unit and liquid crystal display device including the same |
| CN102734699A (en) * | 2011-04-14 | 2012-10-17 | 乐金显示有限公司 | Backlight unit and liquid crystal display device including the same |
| US9316381B2 (en) | 2011-04-14 | 2016-04-19 | Lg Display Co., Ltd. | Backlight unit and liquid crystal display device including the same |
| WO2013071547A1 (en) * | 2011-11-18 | 2013-05-23 | 深圳市华星光电技术有限公司 | Flat-panel display device and stereo display device |
| US8976312B2 (en) | 2011-11-18 | 2015-03-10 | Shenzhen China Star Optoeletronics Technology Co., Ltd. | Flat panel display device and stereoscopic display device |
| US8985796B2 (en) | 2011-11-18 | 2015-03-24 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight system of display device with printed circuit board separate from and mounted to LED substrate with support pillars |
| WO2013071527A1 (en) * | 2011-11-18 | 2013-05-23 | 深圳市华星光电技术有限公司 | Backlight system |
| CN103542296A (en) * | 2013-10-24 | 2014-01-29 | 南京中电熊猫液晶显示科技有限公司 | LED light bar and direct type LED backlight module |
| CN103542296B (en) * | 2013-10-24 | 2016-01-20 | 南京中电熊猫液晶显示科技有限公司 | A kind of LED lamp bar and direct-light type LED backlight module |
| WO2018149239A1 (en) * | 2017-02-20 | 2018-08-23 | 维沃移动通信有限公司 | Electronic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100365486C (en) | 2008-01-30 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 |