CN103175024A - Light emitting diode (LED) backlight module - Google Patents
Light emitting diode (LED) backlight module Download PDFInfo
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- CN103175024A CN103175024A CN2011104399892A CN201110439989A CN103175024A CN 103175024 A CN103175024 A CN 103175024A CN 2011104399892 A CN2011104399892 A CN 2011104399892A CN 201110439989 A CN201110439989 A CN 201110439989A CN 103175024 A CN103175024 A CN 103175024A
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- led
- led lamp
- fin
- backboard
- lgp
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Abstract
The invention provides a light emitting diode (LED) backlight module. The LED backlight module comprises a light guiding plate, LED light bars which are located at the periphery or the bilateral sides of the light guiding plate, heat dissipation sheets which are used for dissipating heat for the LED light bars and adhere to the back surfaces of the LED light bars, and a back plate, wherein a baffle is arranged on a light bar plate of the sides of an LED lamp on the LED light bars, elastic buffering bars are arranged on the back surfaces of the heat dissipation sheets, and the heat dissipation sheets are slidable corresponding to the back plate. Gaps between the light guiding plate and the LED lamp are permanently fixed regardless of whether the light guiding plate in the LED backlight module is heated or humidified or not, and therefore both light entering rates of the light guiding plate and the reliability of the LED backlight module are guaranteed.
Description
Technical field
The present invention relates to the liquid crystal TV set technical field, relate in particular to a kind of LED-backlit module.
Background technology
As shown in Figure 1, present LED-backlit module comprises: LGP 11, be arranged on LGP 11 peripheries or both sides LED lamp bar, be used for fin 14 and backboard 15 to the heat radiation of LED lamp bar.Wherein, LED lamp bar comprises LED lamp batten 12 and the LED lamp 13 that is placed on LED lamp batten.
All can cause after being heated and making moist it to expand due to LGP 11, the expansion of LGP can be shortened the distance between LGP 11 and LED lamp 13, and serious meeting causes LGP to contact with the LED lamp, the reliability of reduction television set.
So, in process of production must preset clearance value a between LGP 11 and LED lamp 13, but gap width a again can not be infinitely great and infinitely small, infinity can cause the loss of a light part, television set brightness is inadequate, and the infinitely small accuracy of manufacture that requires is very high, increases manufacturing cost.Equally, if use the less former sheet material of LGP of the coefficient of expansion, also can increase manufacturing cost, bad adaptability.
Summary of the invention
For this reason, technical problem to be solved by this invention is: a kind of LED-backlit module is provided, make the LGP in LED-backlit module no matter be heated or make moist, gap width between LGP and LED lamp is fixing all the time, has not only guaranteed the light inlet rate of LGP but also has guaranteed the reliability of LED-backlit module.
So, the invention provides a kind of LED-backlit module, comprise LGP, be arranged on LGP periphery or both sides LED lamp bar, be used for dispelling the heat and sticking to fin and the backboard at the LED lamp bar back side to LED lamp bar, it is characterized in that, be provided with block on the lamp batten that LED lamp side is arranged on LED lamp bar, be provided with elastic buffering strip at the fin back side, fin with respect to backboard slidably.
Wherein, offer groove on fin, offer the boss that is complementary with described groove on backboard, fin slides on the boss of backboard by its groove.
Perhaps, offer boss on fin, offer the groove that is complementary with described boss on backboard, fin slides in the groove of backboard by its boss.
Stating block is flat head screw, and this flat head screw is fastened on the lamp batten of LED lamp side.
The thickness of described block is 0.2mm.
LED-backlit module of the present invention, by on the lamp batten that LED lamp side is arranged on LED lamp bar, block being set, at the fin back side, elastic buffering strip is set, and make fin with respect to backboard slidably, make when LGP is heated or makes moist expansion, LGP promotion block direction laterally moves, buffer bar is compressed, but the distance between LGP and LED lamp remains the thickness of block, when LGP is met cold contraction, LGP shrinks, and buffer bar is released, and the compression of buffer bar drives fin with release and slides on backboard.As seen, no matter the LGP in the LED-backlit module is heated or makes moist, and the gap width between LGP and LED lamp is fixing all the time, the reliability that this had not only guaranteed the light inlet rate of LGP but also guaranteed the LED-backlit module.
Description of drawings
Fig. 1 is LED-backlit modular structure schematic diagram in prior art;
Fig. 2 is A section partial enlarged drawing in Fig. 1;
Fig. 3 is the described LED-backlit modular structure of embodiment of the present invention exploded perspective view.
The specific embodiment
Below, describe the present invention by reference to the accompanying drawings.
As shown in Figure 3, the present embodiment provides a kind of LED-backlit module, comprise LGP 21, be arranged on LGP periphery or both sides LED lamp bar, be used for dispelling the heat and sticking to fin 24 and the backboard 25 at the LED lamp bar back side to LED lamp bar, wherein, LED lamp bar comprises LED lamp batten 22 and the LED lamp 23 that is placed on LED lamp batten.
In the present embodiment, also be provided with block 26 on the lamp batten 22 that LED lamp 23 sides are arranged on LED lamp bar, be provided with elastic buffering strip 27 at fin 24 back sides, fin 24 with respect to backboard 25 slidably.During installation, buffer bar 27 contacts with backboard 25.
Above-mentioned LED-backlit modular structure, make when LGP 21 is heated or makes moist expansion, LGP 21 meeting promotion blocks 26 direction laterally move, because backboard 25 is fixing, therefore buffer bar 27 is compressed, due to the existence of link stopper 26, the distance between this moment LGP 21 and LED lamp 23 or the thickness of block.When LGP 21 was met cold contraction, because backboard 25 is fixing, the contraction of LGP 21 made elastic buffering strip 27 be released, and the compression of buffer bar 27 drives fin 24 with release and slides on backboard 25.
For realize fin 24 on backboard 25 slidably, can offer groove on fin 24, offer the boss that is complementary with groove on backboard 25, fin 24 slides on the boss of backboard by its groove.
Certainly, corresponding, also can offer boss on fin, offer the groove that is complementary with described boss on backboard, fin slides in the groove of backboard by its boss.
In the present embodiment, described block 26 can be flat head screw, and this flat head screw is fastened on the lamp batten 22 of LED lamp side.Link stopper 26 can arrange one, also can arrange a plurality of.According to practical experience, the thickness of general block 26 is 0.2mm.
In sum, the described LED-backlit module of the present embodiment, by on the lamp batten that LED lamp side is arranged on LED lamp bar, block being set, at the fin back side, elastic buffering strip is set, and make fin with respect to backboard slidably, make when LGP is heated or makes moist expansion, LGP promotion block direction laterally moves, buffer bar is compressed, but the distance between LGP and LED lamp remains the thickness of block, and when LGP was met cold contraction, LGP shrank, buffer bar is released, and the compression of buffer bar drives fin with release and slides on backboard.As seen, no matter the LGP in the LED-backlit module is heated or makes moist, and the gap width between LGP and LED lamp is fixing all the time, the reliability that this had not only guaranteed the light inlet rate of LGP but also guaranteed the LED-backlit module.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. LED-backlit module, comprise LGP, be arranged on LGP periphery or both sides LED lamp bar, be used for dispelling the heat and sticking to fin and the backboard at the LED lamp bar back side to LED lamp bar, it is characterized in that, be provided with block on the lamp batten that LED lamp side is arranged on LED lamp bar, be provided with elastic buffering strip at the fin back side, fin with respect to backboard slidably.
2. LED-backlit module according to claim 1, is characterized in that, offers groove on fin, offers the boss that is complementary with described groove on backboard, and fin slides on the boss of backboard by its groove.
3. LED-backlit module according to claim 1, is characterized in that, offers boss on fin, offers the groove that is complementary with described boss on backboard, and fin slides in the groove of backboard by its boss.
4. the described LED-backlit module of according to claim 1 to 3 any one, is characterized in that, described block is flat head screw, and this flat head screw is fastened on the lamp batten of LED lamp side.
5. the described LED-backlit module of according to claim 1 to 3 any one, is characterized in that, the thickness of described block is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104399892A CN103175024A (en) | 2011-12-26 | 2011-12-26 | Light emitting diode (LED) backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104399892A CN103175024A (en) | 2011-12-26 | 2011-12-26 | Light emitting diode (LED) backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103175024A true CN103175024A (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104399892A Pending CN103175024A (en) | 2011-12-26 | 2011-12-26 | Light emitting diode (LED) backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103175024A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864722A (en) * | 2016-05-30 | 2016-08-17 | 众普森科技（株洲）有限公司 | LED panel lamp and frame assembly |
| CN107654967A (en) * | 2017-09-04 | 2018-02-02 | 浙江凯耀照明股份有限公司 | LED panel lamp structure |
| CN111323964A (en) * | 2018-12-13 | 2020-06-23 | 深圳Tcl新技术有限公司 | Side-in type backlight module |
| WO2021159872A1 (en) * | 2020-02-13 | 2021-08-19 | 京东方科技集团股份有限公司 | Display module and electronic device having same |
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| CN1588202A (en) * | 2004-08-06 | 2005-03-02 | 友达光电股份有限公司 | Back light module |
| US20090237957A1 (en) * | 2008-03-19 | 2009-09-24 | Epson Imaging Devices Corporation | Illumination device, method of assembling illumination device, and liquid crystal display device |
| US20100128465A1 (en) * | 2008-11-27 | 2010-05-27 | Samsung Electronics Co., Ltd. | Backlight unit and display apparatus including the same |
| CN101865404A (en) * | 2010-05-17 | 2010-10-20 | 达运精密工业（苏州）有限公司 | Backlight module and display device |
| CN101943350A (en) * | 2009-07-03 | 2011-01-12 | 中强光电股份有限公司 | Backlight module |
| CN101978208A (en) * | 2008-03-31 | 2011-02-16 | 三垦电气株式会社 | Planar light source device |
| CN102042533A (en) * | 2009-10-22 | 2011-05-04 | 友达光电股份有限公司 | Backlight module |
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2011
- 2011-12-26 CN CN2011104399892A patent/CN103175024A/en active Pending
Patent Citations (7)
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| CN1588202A (en) * | 2004-08-06 | 2005-03-02 | 友达光电股份有限公司 | Back light module |
| US20090237957A1 (en) * | 2008-03-19 | 2009-09-24 | Epson Imaging Devices Corporation | Illumination device, method of assembling illumination device, and liquid crystal display device |
| CN101978208A (en) * | 2008-03-31 | 2011-02-16 | 三垦电气株式会社 | Planar light source device |
| US20100128465A1 (en) * | 2008-11-27 | 2010-05-27 | Samsung Electronics Co., Ltd. | Backlight unit and display apparatus including the same |
| CN101943350A (en) * | 2009-07-03 | 2011-01-12 | 中强光电股份有限公司 | Backlight module |
| CN102042533A (en) * | 2009-10-22 | 2011-05-04 | 友达光电股份有限公司 | Backlight module |
| CN101865404A (en) * | 2010-05-17 | 2010-10-20 | 达运精密工业（苏州）有限公司 | Backlight module and display device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864722A (en) * | 2016-05-30 | 2016-08-17 | 众普森科技（株洲）有限公司 | LED panel lamp and frame assembly |
| US10481318B2 (en) | 2016-05-30 | 2019-11-19 | Zopoise Technology (Zhuzhou) Co., Ltd. | LED panel light and frame component for LED panel light |
| CN105864722B (en) * | 2016-05-30 | 2020-03-17 | 众普森科技（株洲）有限公司 | LED panel light and frame assembly |
| CN107654967A (en) * | 2017-09-04 | 2018-02-02 | 浙江凯耀照明股份有限公司 | LED panel lamp structure |
| CN111323964A (en) * | 2018-12-13 | 2020-06-23 | 深圳Tcl新技术有限公司 | Side-in type backlight module |
| WO2021159872A1 (en) * | 2020-02-13 | 2021-08-19 | 京东方科技集团股份有限公司 | Display module and electronic device having same |
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Application publication date: 20130626 |