CN203336362U - Laterally-arranged type LED backlight module and liquid crystal display device thereof - Google Patents
Laterally-arranged type LED backlight module and liquid crystal display device thereof Download PDFInfo
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- CN203336362U CN203336362U CN2013203275825U CN201320327582U CN203336362U CN 203336362 U CN203336362 U CN 203336362U CN 2013203275825 U CN2013203275825 U CN 2013203275825U CN 201320327582 U CN201320327582 U CN 201320327582U CN 203336362 U CN203336362 U CN 203336362U
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- heat dissipation
- backlight module
- type led
- liquid crystal
- led backlight
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Abstract
The utility model discloses a laterally-arranged type LED backlight module and a liquid crystal display device thereof. The laterally-arranged type LED backlight module comprises an optical material, an LED module and a heat dissipation piece. The LED module is arranged above the heat dissipation piece, the light-emitting face of the LED module is towards the side face of the optical material, and a heat dissipation channel which extends to the exterior of a machine shell is formed in the heat dissipation piece. Due to the fact that the heat dissipation channel which extends to the exterior of the machine shell is adopted in the used heat dissipation piece, heat dissipation through convection can be directly carried out on the heat dissipation piece and the air outside the machine shell, even if the machine shell is installed on the liquid crystal display device, and the rear shell portion can not hinder the direct heat dissipation through convection of the heat dissipation piece and the exterior air. Therefore, the convection coefficient is improved, the heat conduction way is reduced, thermal resistance is reduced, the heat dissipation effect of the LED module is improved, lamp extinguishing and quickening of optical material aging are avoided, and service life is prolonged.
Description
Technical field
The utility model relates to flange-cooled side entering-type LED backlight module and liquid crystal indicator field thereof, in particular a kind of fin of good heat dissipation effect.
Background technology
Liquid crystal indicator (LCD Liquid Crystal Display) has the advantages such as frivolous, power saving, radiation be low with it, nowadays be widely used, liquid crystal indicator major part on market is all the backlight liquid crystal indicator, the backlight liquid crystal indicator partly is comprised of liquid crystal panel, institutional framework, backlight module etc., because liquid crystal panel itself can't be luminous, the light source that need to provide by backlight module carrys out show image, so backlight module just becomes one of key component of liquid crystal indicator.
Current, the side entrance back module is generally used CCFL(Cold Cathode Fluorescent Lamp, cathode fluorescent tube) or LED(Light Emitting Diode, light emitting diode) as illuminating source, wherein gently little because of LED again, energy-conservation, easily realize ultra-thin and narrow frame, become gradually the backlight of main flow, and along with liquid crystal indicator maximizes, 4K2K, lightening and section's simplifying of material trend development, the LED light source that impels backlight module to use toward in high-power and high brightness future development, also make thus the heat radiation of LED become the serious problems that affect the liquid crystal indicator life-span.
As shown in Figure 1, Fig. 1 is the stereogram of side entering-type LED backlight module in prior art, traditional side entering-type LED backlight module mainly comprises backboard 110, optics section material 120 (is known in the art, do not repeat them here), LED module 130 and fin 140, when using LED to do backlight, usually can be a plurality of LED mode in accordance with regulations be installed on heat-conducting substrate and form described LED module 130, the heat produced during its work just can be dispelled the heat by heat-conducting substrate, simultaneously in order to reach the heat radiation requirement, generally also can first described LED module 130 be fixed on described fin 140, again described fin 140 is fixed on described backboard 110, the heat produced when described LED module 130 is worked thus just can be dispelled the heat by described fin 140 and backboard 110.
But, because the heat conduction path of described LED module 130 is more, not direct and outside air carries out heat loss through convection, liquid crystal indicator is after loading onto casing simultaneously, the back cover part also can stop that described fin 130 and described backboard 110 carry out heat loss through convection with outside air, make the radiating effect of described LED module 130 unsatisfactory, and then cause LED in described LED module 130 temperature after work a period of time still higher, also easily cause the problems such as dead lamp and described optics section material 120 are aging.
Therefore, prior art still haves much room for improvement and develops.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of side entering-type LED backlight module, can improve the radiating effect of LED module, avoids occurring dead lamp and makes optics section material aging.
And the utility model also proposes a kind of liquid crystal indicator, can improve the radiating effect of its side entering-type LED backlight module used, and extend its service life.
The technical solution of the utility model is as follows: a kind of side entering-type LED backlight module, comprise optics section material, LED module and fin, described LED module is arranged on described fin, the light-emitting area of described LED module is towards the side of described optics section material, wherein: be provided with the heat dissipation channel that extends to the casing external world on described fin.
Described side entering-type LED backlight module, wherein: described fin is comprised of the first side sheet be connected and Second Edge sheet, described first side sheet and described Second Edge sheet intersect vertically and are L-type, described LED module is fixed on the inwall of described first side sheet, the inwall of described Second Edge sheet is positioned at the back side of described optics section material, and described heat dissipation channel is arranged on the outer wall of described Second Edge sheet.
Described side entering-type LED backlight module, wherein: the outside at described first side sheet and Second Edge sheet also is provided with backboard, is provided with the groove of the outer wall embedding of adaptive described heat dissipation channel on described backboard.
Described side entering-type LED backlight module, wherein: also be provided with described heat dissipation channel on the outer wall of described first side sheet.
Described side entering-type LED backlight module, wherein: the frame-shaped construction that the cross section of described fin is a sealing, at least comprise a described heat dissipation channel, described LED module is arranged on the outer wall of this frame-shaped construction.
Described side entering-type LED backlight module, wherein: the cross section of described heat dissipation channel is rectangular.
Described side entering-type LED backlight module, wherein: the convex tendon that is provided with dentation or sheet on the inwall of described heat dissipation channel.
A kind of liquid crystal indicator, comprise casing, liquid crystal panel and backlight module, described backlight module is arranged on the back of described liquid crystal panel, described casing is sleeved on the outside of described liquid crystal panel and backlight module, and wherein: described backlight module is set to side entering-type LED backlight module as described as above-mentioned middle any one.
A kind of side entering-type LED backlight module provided by the utility model and liquid crystal indicator thereof, owing to having adopted the heat dissipation channel that extends to the casing external world on the fin used at it, make fin can be directly and the air in the casing external world carry out heat loss through convection, even liquid crystal indicator is after loading onto casing, its back cover part also can not hinder fin directly and outside air carries out heat loss through convection, improved thus convection coefficient, reduced heat conduction path, reduced thermal resistance, improved the radiating effect of LED module, avoided occurring that dead lamp and acceleration optics section material are aging, extended service life.
The accompanying drawing explanation
Fig. 1 is the stereogram of side entering-type LED backlight module in prior art.
Fig. 2 is the stereogram of the utility model side entering-type LED backlight module embodiment mono-.
Fig. 3 is the stereogram of the utility model side entering-type LED backlight module embodiment bis-.
The specific embodiment
Below with reference to accompanying drawing, the specific embodiment of the present utility model and embodiment are described in detail, described specific embodiment only, in order to explain the utility model, is not intended to limit the specific embodiment of the present utility model.
As shown in Figure 2, Fig. 2 is the stereogram of the utility model side entering-type LED backlight module embodiment mono-, this side entering-type LED backlight module mainly comprises optics section material 220, LED module 230 and fin 240, wherein, described LED module 230 is arranged on described fin 240, can distribute by described fin 240 heat that described LED module 230 produces when working, temperature while reducing described LED module 230 work, improve the service life of described LED module 230 and described optics section material 220, the light-emitting area of described LED module 230 is towards the side of described optics section material 220, the light that described LED module 230 sends thus can enter into this optics section material 220 inside from the side of described optics section material 220.
And improvements of the present utility model are, be provided with on described fin 240 and extend to the extraneous heat dissipation channel 243 of casing (scheming not shown), for make described fin 241 can be directly and the air in the casing external world carry out heat loss through convection, to improve the convection coefficient of fin 241, reduce the heat conduction path of fin 241, and then improve the heat-sinking capability of side entering-type LED backlight module.
In this embodiment mono-, concrete, described fin 240 can be comprised of the first side sheet 241 be connected and Second Edge sheet 242, described first side sheet 241 intersects vertically and is L-type with described Second Edge sheet 242, described LED module 230 is fixed on the inwall of described first side sheet 241, the inwall of described Second Edge sheet 242 is positioned at the back side of described optics section material 220, and described heat dissipation channel 243 is arranged on the outer wall of described Second Edge sheet 242.
Further, all backboard 210 can be arranged in described side entering-type LED backlight module, described backboard 210 is arranged on the outside of described fin 240 usually, it is the outside of described first side sheet 241 and Second Edge sheet 242, and a side of the described Second Edge sheet 242 that reclines on described backboard 210 is provided with the groove 213 that the outer wall of adaptive described heat dissipation channel 243 embeds, to reduce the integral thickness of described side entering-type LED backlight module.
In addition, can also on the outer wall of described first side sheet 241, be provided with too the heat dissipation channel (scheming not shown) that extends to the casing external world, further to improve the radiating effect of described fin 240.
As shown in Figure 3, Fig. 3 is the stereogram of the utility model side entering-type LED backlight module embodiment bis-, in this embodiment, the frame-shaped construction that the cross section of described fin 340 is a sealing, described LED module 330 is arranged on the outer wall of this frame-shaped construction, two described heat dissipation channels 343 have been arranged side by side in this frame-shaped construction, one or more heat dissipation channels can certainly be set, specifically can be selected as required, compare embodiment mono-, fin 340 in embodiment bis-has more succinct and does not allow yielding profile, its heat dissipation channel 343 is also large than the fin 240 in embodiment mono-with the contact area of outside air.
In the preferred embodiment of the utility model side entering-type LED backlight module embodiment mono-and embodiment bis-, the cross section of described heat dissipation channel 234 (with 343) can be rectangular, also can make the arbitrary shape that contact area is larger.
And, the convex tendon (scheming not shown) of some dentations or sheet can also be set on described heat dissipation channel 234 inwall of (with 343), further to increase the contact area of described fin 230 (with 340) and outside air, improve described fin 230 radiating effect of (with 340).
Based on above-mentioned side entering-type LED backlight module, the utility model has also proposed that a kind of back light part minute heat-sinking capability is strong, the liquid crystal indicator of long service life, comprise casing, liquid crystal panel and backlight module, described backlight module is arranged on the back of described liquid crystal panel, described casing is sleeved on the outside of described liquid crystal panel and backlight module, wherein: described backlight module has adopted the described side entering-type LED backlight module of any one in above-described embodiment, to improve the radiating effect of its backlight, and increase the service life.
Should be understood that; the foregoing is only preferred embodiment of the present utility model; be not sufficient to limit the technical solution of the utility model; for those of ordinary skills; within spirit of the present utility model and principle; can be increased and decreased according to the above description, replaced, converted or be improved, and all these increases and decreases, replace, conversion or improve after technical scheme, all should belong to the protection domain of the utility model claims.
Claims (8)
1. a side entering-type LED backlight module, comprise optics section material, LED module and fin, described LED module is arranged on described fin, the light-emitting area of described LED module, towards the side of described optics section material, is characterized in that: be provided with the heat dissipation channel that extends to the casing external world on described fin.
2. side entering-type LED backlight module according to claim 1, it is characterized in that: described fin is comprised of the first side sheet be connected and Second Edge sheet, described first side sheet and described Second Edge sheet intersect vertically and are L-type, described LED module is fixed on the inwall of described first side sheet, the inwall of described Second Edge sheet is positioned at the back side of described optics section material, and described heat dissipation channel is arranged on the outer wall of described Second Edge sheet.
3. side entering-type LED backlight module according to claim 2, it is characterized in that: the outside at described first side sheet and Second Edge sheet also is provided with backboard, is provided with the groove that the outer wall of adaptive described heat dissipation channel embeds on described backboard.
4. side entering-type LED backlight module according to claim 3, is characterized in that: also be provided with described heat dissipation channel on the outer wall of described first side sheet.
5. side entering-type LED backlight module according to claim 1 is characterized in that: the frame-shaped construction that the cross section of described fin is a sealing, at least comprise a described heat dissipation channel, and described LED module is arranged on the outer wall of this frame-shaped construction.
6. side entering-type LED backlight module according to claim 1, it is characterized in that: the cross section of described heat dissipation channel is rectangular.
7. side entering-type LED backlight module according to claim 1, is characterized in that: the convex tendon that is provided with dentation or sheet on the inwall of described heat dissipation channel.
8. a liquid crystal indicator, comprise casing, liquid crystal panel and backlight module, described backlight module is arranged on the back of described liquid crystal panel, described casing is sleeved on the outside of described liquid crystal panel and backlight module, it is characterized in that: described backlight module is set to side entering-type LED backlight module as described as any one in claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203275825U CN203336362U (en) | 2013-06-07 | 2013-06-07 | Laterally-arranged type LED backlight module and liquid crystal display device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203275825U CN203336362U (en) | 2013-06-07 | 2013-06-07 | Laterally-arranged type LED backlight module and liquid crystal display device thereof |
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| CN203336362U true CN203336362U (en) | 2013-12-11 |
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| CN2013203275825U Expired - Fee Related CN203336362U (en) | 2013-06-07 | 2013-06-07 | Laterally-arranged type LED backlight module and liquid crystal display device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467679A (en) * | 2016-01-07 | 2016-04-06 | 江门市唯是半导体科技有限公司 | Backlight module |
-
2013
- 2013-06-07 CN CN2013203275825U patent/CN203336362U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467679A (en) * | 2016-01-07 | 2016-04-06 | 江门市唯是半导体科技有限公司 | Backlight module |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516001 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 19 district Patentee after: HUIZHOU VERY LIGHT SOURCE TECHNOLOGY Co.,Ltd. Address before: 516001 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 19 district Patentee before: TCL Harvatck (Huizhou) Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 516001 No. 72 Huifeng Fourth Road, Zhongkai High-tech Zone, Huizhou City, Guangdong Province (Factory Building) Patentee after: TCL HUARUI LIGHTING TECHNOLOGY (HUIZHOU) Co.,Ltd. Address before: 516001 Zhongkai hi tech Development Zone 19, Huizhou, Guangdong Patentee before: HUIZHOU VERY LIGHT SOURCE TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181205 Address after: 516000 No. 72 Huifeng 4th Road, Zhongkai High-tech Zone, Huizhou City, Guangdong Province (Factory Building) Co-patentee after: VERY OPTOELECTRONICS (HUIZHOU) Co.,Ltd. Patentee after: TCL HUARUI LIGHTING TECHNOLOGY (HUIZHOU) Co.,Ltd. Address before: 516001 No. 72 Huifeng Fourth Road, Zhongkai High-tech Zone, Huizhou City, Guangdong Province (Factory Building) Patentee before: TCL HUARUI LIGHTING TECHNOLOGY (HUIZHOU) Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20210607 |
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| CF01 | Termination of patent right due to non-payment of annual fee |