CN204028520U - A kind of LED lamp bar and comprise the side entrance back module of this LED lamp bar - Google Patents
A kind of LED lamp bar and comprise the side entrance back module of this LED lamp bar Download PDFInfo
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- CN204028520U CN204028520U CN201420306382.6U CN201420306382U CN204028520U CN 204028520 U CN204028520 U CN 204028520U CN 201420306382 U CN201420306382 U CN 201420306382U CN 204028520 U CN204028520 U CN 204028520U
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Abstract
The utility model provides a kind of LED lamp bar and has comprised the side entrance back module of this LED lamp bar; Described LED lamp bar (10) comprises substrate (11) and is fixedly installed on the multiple LED (12) on this substrate (11) side; On the side that is provided with described LED (12) of this substrate (11), be also provided with support (13); Described support (13) is greater than the vertical range thickness of described LED (12) with respect to described substrate (11) side with respect to the vertical range thickness of described substrate (11) side; Described support (13) is metallic article or transparent products.The utility model has solved the thermal expansion meeting compressing LED of light guide plate, thereby causes damaging the problem of LED, and the utility model production cost is low, practical.
Description
Technical field
The utility model relates to backlight module, relates in particular to a kind of LED lamp bar and comprises the side entrance back module of this LED lamp bar.
Background technology
Liquid crystal indicator has that fuselage is thin, power saving, the many merits such as radiationless, is widely used.Liquid crystal indicator major part on existing market is backlight liquid crystal display, and it comprises liquid crystal panel and backlight module.The principle of work of liquid crystal panel is to place liquid crystal molecule in the middle of two parallel glass, two have the tiny electric wire of many vertical and levels in the middle of sheet glass, control liquid crystal molecule by whether switching on and change direction, the light refraction of backlight module is out produced to picture.Because liquid crystal panel itself is not luminous, the light source that need to provide by backlight module carrys out normal show image, and therefore, backlight module becomes one of key part and component of liquid crystal indicator.Backlight module is divided into two kinds of side entrance back module and down straight aphototropism mode set according to the difference of light source incoming position.Down straight aphototropism mode set is that for example CCFL of illuminating source or LED are arranged on to liquid crystal panel rear, and directly forming surface light source offers liquid crystal panel.And side entrance back module is the back plate edges that illuminating source LED lamp bar is arranged to liquid crystal panel proceeds posterolateral, the light that LED lamp bar sends enters light guide plate from the incidence surface of light guide plate one side, after reflection and diffusion, from the outgoing of light guide plate exiting surface, offer liquid crystal panel with forming surface light source.
In side entrance back module, LED lamp bar is to be fixed on heat sink, and the heat of this LED lamp bar is conducted by heat sink, and the inside surface of heat sink is provided with light guide plate installed surface, light guide plate is placed on light guide plate installed surface, and heat sink and backboard are fixed light guide plate simultaneously.LED lamp on the incidence surface of light guide plate and LED lamp bar reclines very closely, almost very close to each other, the utilization factor in order to improve light on the one hand, in order to prevent light leak on the other hand, there is parasitic light, the in the situation that of long-term start, light guide plate is received the effect of the heat that the inner electric elements of illumination and complete machine disperse out, under the rule of expanding with heat and contract with cold, expand, light guide plate will be oppressed LED lamp repeatedly like this, thereby causes LED lamp to damage, the lost of life of product, meanwhile, the replacing of LED lamp bar and maintenance are also very difficult.
For above-mentioned this problem, application number is that the utility model patent that 201220651390.5 name is called " LED liquid crystal screen backlight component " provides a kind of LED liquid crystal screen backlight component, this LED liquid crystal screen backlight component comprises heat sink and lamp bar, described heat sink comprises sidewall and light guide plate installed surface, described lamp bar comprises substrate and LED lamp, on described light guide plate installed surface, be provided with projection, the width of described projection is greater than the thickness of described LED lamp, described substrate is arranged between described projection and described sidewall, and described LED lamp is positioned at the top of described projection.Like this, the LED liquid crystal screen backlight component of this utility model separates LED lamp and light guide plate by projection, has avoided the compressing of light guide plate to LED lamp, thereby prevents the damage of LED lamp.Although the problems referred to above have solved light guide plate and oppressed the problem of LED lamp because of thermal expansion, because projection is arranged on heat sink, like this, LED lamp bar just can not be installed on heat sink easily.Meanwhile, because LED lamp is positioned at protruding top, like this, just there is the problem of a LED lamp bar and heat sink location.Further, because projection is very near with the distance of LED lamp, the part light that LED lamp sends will be blocked by projection, is unfavorable for the demonstration of liquid crystal panel.
Utility model content
The purpose of this utility model is for the LED on the thermal expansion compressing LED lamp bar of light guide plate, thereby the problem that causes LED to damage provides a kind of LED lamp bar and comprised the side entrance back module of this LED lamp bar.
The technical scheme in the invention for solving the technical problem is:
The utility model provides a kind of LED lamp bar, and this LED lamp bar comprises substrate and is fixedly installed on the multiple LED in this substrate side surfaces; On the side that is provided with described LED of this substrate, be also provided with support; Described support is greater than the vertical range thickness of described LED with respect to described substrate side surfaces with respect to the vertical range thickness of described substrate side surfaces; Described support is metallic article or transparent products.
In the above-mentioned LED lamp bar of the utility model, described support with respect to the vertical range thickness of described substrate side surfaces and described LED with respect to the difference of the distance of the vertical range thickness of described substrate side surfaces between 0.4mm-0.6mm.
In the above-mentioned LED lamp bar of the utility model, described support is 0.5mm with respect to vertical range thickness and the described LED of described substrate side surfaces with respect to the difference of the distance of the vertical range thickness of described substrate side surfaces.
In the above-mentioned LED lamp bar of the utility model, described multiple LED are arranged on same straight line equally spacedly; One or more described supports are also on the straight line in the plurality of LED place, and each described support is arranged between two adjacent described LED.
In the above-mentioned LED lamp bar of the utility model, described multiple LED are arranged on same straight line equally spacedly; One or more described supports are arranged on a side of the straight line at the plurality of LED place.
In the above-mentioned LED lamp bar of the utility model, described support is copper billet.
The utility model provides a kind of side entrance back module, and this side entrance back module comprises LED lamp bar as above and light guide plate; The side that is provided with described LED of described substrate and the side of described light guide plate are oppositely arranged.
The utility model also provides a kind of side entrance back module, and this side entrance back module comprises LED lamp bar as above, light guide plate and back of the body frame; This back of the body frame middle part offers storage tank, and described substrate is installed on the sidewall of described storage tank, and described light guide plate is fitted in the bottom land of described storage tank, and the side that is provided with described LED of described substrate and the side of described light guide plate are oppositely arranged; Between described LED and the bottom land of described storage tank of each described support in described multiple LED.
The utility model has solved the thermal expansion meeting compressing LED of light guide plate, thereby causes damaging the problem of LED, has extended the serviceable life of LED lamp bar, and meanwhile, the support that the utility model is adopted as metallic article will conduct the heat in light guide plate by support.The utility model production cost is low, practical.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the schematic diagram of the side entrance back module of the utility model the first embodiment;
Fig. 2 is the schematic diagram of the LED lamp bar of the side entrance back module shown in Fig. 1;
Fig. 3 is the schematic diagram of the side entrance back module of the utility model the second embodiment;
Fig. 4 is the schematic diagram of the LED lamp bar of the side entrance back module shown in Fig. 3.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the utility model is done to further detailed description.
Thinking of the present utility model is by support being set on LED lamp bar, and support is greater than the vertical range thickness of LED with respect to substrate side surfaces with respect to the vertical range thickness of substrate side surfaces, thereby make to separate certain gap between LED on this LED lamp bar and light guide plate, thereby the problem of having avoided the thermal expansion of light guide plate to cause LED to damage.
To elaborate the utility model by three specific embodiments below.
The first embodiment
With reference to Fig. 1, Fig. 1 shows the side entrance back module of the utility model the first embodiment.This side entrance back module comprises LED lamp bar 10 and light guide plate 20.Fig. 2 shows the LED lamp bar 10 of the side entrance back module shown in Fig. 1.
Particularly, in the present embodiment, this LED lamp bar 10 comprises substrate 11 and is fixedly installed on the multiple LED12 on these substrate 11 sides.On the side that is provided with LED12 of this substrate 11, be also provided with support 13, support 13 is greater than the vertical range thickness of LED12 with respect to substrate 11 sides with respect to the vertical range thickness of substrate 11 sides.Preferably, support 13 with respect to the vertical range thickness of substrate 11 sides and LED12 with respect to the difference of the vertical range thickness of substrate 11 sides between 0.4mm-0.6mm, preferably, in the present embodiment, support 13 is 0.5mm with respect to vertical range thickness and the LED12 of substrate 11 sides with respect to the difference of the vertical range thickness of substrate 11 sides.
Further, support 13 is metallic article or transparent products.In the present embodiment, with reference to Fig. 1, support 13 is copper billet; Usually, support 13 is the same with LED12, be all by SMT (Surface Mount Technology, surface installation technique) process Installation on substrate 11.Like this, manufacturing process is simple, easy realization with low cost.Be appreciated that support 13 can be also other metal material products.Support 13 can also be to be made up of crystalline ceramics or clear glass.In the time that support 13 is transparent products, the light that LED12 sends just can not blocked by support 13.
Preferably, in the present embodiment, multiple LED12 are arranged on same straight line equally spacedly.
In the present embodiment, support 13 is also on the straight line in multiple LED12 place, and this support 13 is arranged between two adjacent LED12.Due to this setup of support 13, the assembling process of support 13 is just simpler.
The side that is provided with LED12 of this substrate 11 and the side of light guide plate 20 are oppositely arranged.Like this, the light that this LED12 sends just can side emission enter in light guide plate 20.
Simultaneously, because support 13 is greater than the vertical range thickness of LED12 with respect to substrate 11 sides with respect to the vertical range thickness of substrate 11 sides, like this, between LED12 and light guide plate 20, certainly exist certain gap, like this, when thermal expansion occurs light guide plate 20, light guide plate 20 also only can support on support 13, and can not oppress LED12, thereby avoid the damage of LED12.
In the time of light guide plate 20 oversize, as the light guide plate on E-LED TV, substrate 11 likely bends, and the LED12 on substrate 11 bends towards light guide plate 20, like this, if while only having a support 13 on LED lamp bar 10, LED12 is likely met in the thermal expansion of light guide plate 20.
For fear of this situation, on the side that is provided with LED12 of this substrate 11, be also provided with multiple supports 13.The plurality of support 13 is also all on the straight line in multiple LED12 place.And each support 13 is arranged between two adjacent LED12.In the present embodiment, on the side that is provided with LED12 of this substrate 11, be also provided with three supports 13.These three supports 13 are separately positioned on two ends and the centre of substrate 11.
The present embodiment has solved the thermal expansion meeting compressing LED of light guide plate, thereby cause damaging the problem of LED, extend the serviceable life of LED lamp bar, meanwhile, because support is copper billet, and copper billet has the stronger capacity of heat transmission, in the time of light guide plate thermal expansion, light guide plate can be encountered support, and like this, the heat in light guide plate will conduct by support 13.Meanwhile, the present embodiment, by adopting support and the scheme of LED on same straight line, makes the production method of LED lamp bar more simple.But if the length of substrate is very little, as the substrate on the backlight module on mobile phone, what the LED of the present embodiment sent enter light guide plate is likely blocked by support from the light of the near point of support, thereby causes shade.
The second embodiment
The present embodiment enters the light of light guide plate from the near point of support for what solve that the first embodiment medium-height trestle likely blocks that LED sends.
With reference to Fig. 3, Fig. 3 shows the side entrance back module of the utility model the second embodiment.This side entrance back module comprises LED lamp bar 10 and light guide plate 20.Fig. 2 shows the LED lamp bar 10 of the side entrance back module shown in Fig. 1.
Particularly, in the present embodiment, this LED lamp bar 10 comprises substrate 11 and is fixedly installed on the multiple LED12 on these substrate 11 sides.On the side that is provided with LED12 of this substrate 11, be also provided with support 13, support 13 is greater than the vertical range thickness of LED12 with respect to substrate 11 sides with respect to the vertical range thickness of substrate 11 sides.Preferably, support 13 with respect to the vertical range thickness of substrate 11 sides and LED12 with respect to the difference of the vertical range thickness of substrate 11 sides between 0.4mm-0.6mm, preferably, in the present embodiment, support 13 is 0.5mm with respect to vertical range thickness and the LED12 of substrate 11 sides with respect to the difference of the vertical range thickness of substrate 11 sides.
Further, support 13 is metallic article or transparent products.In the present embodiment, with reference to Fig. 3, support 13 is copper billet; Usually, support 13 is the same with LED12, be all by SMT (Surface Mount Technology, surface installation technique) process Installation on substrate 11.Like this, manufacturing process is simple, easy realization with low cost.Be appreciated that support 13 can be also other metal material products.Support 13 can also be to be made up of crystalline ceramics or clear glass.In the time that support 13 is transparent products, the light that LED12 sends just can not blocked by support 13.
Preferably, in the present embodiment, multiple LED12 are arranged on same straight line equally spacedly.
In the present embodiment, the side that is provided with LED12 of substrate 11 and the side of light guide plate 20 are oppositely arranged.Like this, the light that this LED12 sends just can side emission enter in light guide plate 20.
Further, with reference to Fig. 3, side entrance back module also comprises back of the body frame 30, and these back of the body frame 30 middle parts offer storage tank, and LED lamp bar 10 and light guide plate 20 are all installed in the storage tank of this back of the body frame 30.
Particularly, with reference to Fig. 4, substrate 11 is installed on the sidewall of storage tank, and light guide plate 20 is fitted in the bottom land of storage tank, and the side that is provided with LED12 of substrate 11 and the side of light guide plate 20 are oppositely arranged.And, between LED12 and the bottom land of storage tank of support 13 in multiple LED12.Like this, the position between two adjacent LED of light guide plate just there will not be the phenomenon of shade.Meanwhile, due to the position of the present embodiment medium-height trestle 13, the near point of the distance bracket 13 of light guide plate 20 also can not obstructed the light by support 13.
Simultaneously, because support 13 is greater than the vertical range thickness of LED12 with respect to substrate 11 sides with respect to the vertical range thickness of substrate 11 sides, like this, between LED12 and light guide plate 20, certainly exist certain gap, like this, when thermal expansion occurs light guide plate 20, light guide plate 20 also only can support on support 13, and can not oppress LED12, thereby avoid the damage of LED12.
In the time of light guide plate 20 oversize, as the light guide plate on E-LED TV, substrate 11 likely bends, and the LED12 on substrate 11 bends towards light guide plate 20, like this, if while only having a support 13 on LED lamp bar 10, LED12 is likely met in the thermal expansion of light guide plate 20.
For fear of this situation, on the side that is provided with LED12 of this substrate 11, be also provided with multiple supports 13.Some LED12 in multiple LED12 are corresponding one by one with multiple supports 13.Each support 13 is between the LED12 corresponding with this support 13 and the bottom land of storage tank.
In the present embodiment, on the side that is provided with LED12 of this substrate 11, be also provided with three supports 13.These three supports 13 are separately positioned on two ends and the centre of substrate 11.
Further, in the present embodiment, side entrance back module comprises two LED lamp bars 10 and light guide plate 20.These two LED lamp bars 10 are separately positioned on the both sides of light guide plate 20.
The present embodiment has solved the thermal expansion meeting compressing LED of light guide plate, thereby cause damaging the problem of LED, extend the serviceable life of LED lamp bar, meanwhile, because support is copper billet, and copper billet has the stronger capacity of heat transmission, in the time of light guide plate thermal expansion, light guide plate can be encountered support, and like this, the heat in light guide plate will conduct by support 13.Meanwhile, the present embodiment arranges support by the position between the LED in corresponding with this support and the bottom land of storage tank and has avoided light guide plate to occur the problem of shade.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (8)
1. a LED lamp bar, is characterized in that, this LED lamp bar (10) comprises substrate (11) and is fixedly installed on the multiple LED (12) on this substrate (11) side; On the side that is provided with described LED (12) of this substrate (11), be also provided with support (13); Described support (13) is greater than the vertical range thickness of described LED (12) with respect to described substrate (11) side with respect to the vertical range thickness of described substrate (11) side; Described support (13) is metallic article or transparent products.
2. LED lamp bar according to claim 1, it is characterized in that, described support (13) with respect to the vertical range thickness of described substrate (11) side and described LED (12) with respect to the difference of the distance of the vertical range thickness of described substrate (11) side between 0.4mm-0.6mm.
3. LED lamp bar according to claim 2, it is characterized in that, described support (13) is 0.5mm with respect to vertical range thickness and the described LED (12) of described substrate (11) side with respect to the difference of the distance of the vertical range thickness of described substrate (11) side.
4. LED lamp bar according to claim 1, is characterized in that, described multiple LED (12) are arranged on same straight line equally spacedly; One or more described supports (13) are also on the straight line in the plurality of LED (12) place, and each described support (13) is arranged between two adjacent described LED (12).
5. LED lamp bar according to claim 1, is characterized in that, described multiple LED (12) are arranged on same straight line equally spacedly; One or more described supports (13) are arranged on a side of the straight line at the plurality of LED (12) place.
6. LED lamp bar according to claim 1, is characterized in that, described support (13) is copper billet.
7. a side entrance back module, is characterized in that, this side entrance back module comprises LED lamp bar (10) and the light guide plate (20) as described in claim 1-6 any one; The side that is provided with described LED (12) of described substrate (11) and the side of described light guide plate (20) are oppositely arranged.
8. a side entrance back module, is characterized in that, this side entrance back module comprises LED lamp bar as claimed in claim 5 (10), light guide plate (20) and back of the body frame (30); This back of the body frame (30) middle part offers storage tank, described substrate (11) is installed on the sidewall of described storage tank, described light guide plate (20) is fitted in the bottom land of described storage tank, and the side that is provided with described LED (12) of described substrate (11) and the side of described light guide plate (20) are oppositely arranged; Between the described LED (12) and the bottom land of described storage tank of each described support (13) in described multiple LED (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306382.6U CN204028520U (en) | 2014-06-10 | 2014-06-10 | A kind of LED lamp bar and comprise the side entrance back module of this LED lamp bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306382.6U CN204028520U (en) | 2014-06-10 | 2014-06-10 | A kind of LED lamp bar and comprise the side entrance back module of this LED lamp bar |
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| Publication Number | Publication Date |
|---|---|
| CN204028520U true CN204028520U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420306382.6U Expired - Fee Related CN204028520U (en) | 2014-06-10 | 2014-06-10 | A kind of LED lamp bar and comprise the side entrance back module of this LED lamp bar |
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| CN (1) | CN204028520U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739175A (en) * | 2016-03-10 | 2016-07-06 | 青岛海信电器股份有限公司 | Backlight module and display device |
| CN106338861A (en) * | 2016-10-28 | 2017-01-18 | 奥英光电（苏州）有限公司 | The backlight module and liquid crystal display |
-
2014
- 2014-06-10 CN CN201420306382.6U patent/CN204028520U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739175A (en) * | 2016-03-10 | 2016-07-06 | 青岛海信电器股份有限公司 | Backlight module and display device |
| CN106338861A (en) * | 2016-10-28 | 2017-01-18 | 奥英光电（苏州）有限公司 | The backlight module and liquid crystal display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20150610 |
|
| EXPY | Termination of patent right or utility model |