CN203298070U - Backlight module and liquid crystal displaying device - Google Patents
Backlight module and liquid crystal displaying device Download PDFInfo
- Publication number
- CN203298070U CN203298070U CN2013201433792U CN201320143379U CN203298070U CN 203298070 U CN203298070 U CN 203298070U CN 2013201433792 U CN2013201433792 U CN 2013201433792U CN 201320143379 U CN201320143379 U CN 201320143379U CN 203298070 U CN203298070 U CN 203298070U
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- lamp bar
- backlight module
- groove
- fixed
- backboard
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Abstract
The utility model discloses a backlight module. The backlight module comprises a back panel and a light bar fixed on the back panel. A plurality of LED lamps are installed on the light bar, a groove with the shape matched with the light bar is formed in the back panel, and the light bar is fixed inside the groove. The utility model further discloses a liquid crystal displaying device. By means of the scheme, the light bar and the back panel are fixed more reliably, meanwhile, production efficiency of the backlight module is improved, production cost is reduced, and the service life of the liquid crystal displaying device is prolonged to a large extent.
Description
Technical field
The utility model relates to field of liquid crystal display, specially refers to a kind of backlight module and liquid crystal indicator.
Background technology
In liquid crystal panel, the number of the LED lamp that direct-type backlight uses is wanted much less than side entrance back, yet, because the number of LED lamp has reduced, correspondingly the power of single led lamp is just larger, this just requires the lamp bar can contact reliably with metal backing, in order to reduce the thermal resistance between lamp bar and metal backing, thereby reaches radiating effect preferably.
Be illustrated in figure 1 in prior art the structural representation of fixing for reducing lamp bar that thermal resistance adopts and metal backing.Between lamp bar 100 and metal backing 200, add the heat conduction clearance material, normally heat-conducting silicone grease, play a screw 300 simultaneously near near LED lamp 101, so that fixed light bar 100 makes lamp bar 100 and metal backing 200 good contacts.But, because heat-conducting silicone grease has volatility and mobility, the silicone grease of lamp bar 100 bottoms of long duration just can volatilize, and because span between two screws 300 is larger, the lamp bar 100 between these two screws 300 will a little protuberance, and gap is strengthened, thereby greatly increased thermal contact resistance, make LED lamp 101 excess Temperatures, brightness decay is too fast, significantly reduces the life-span.On the other hand, if both sides are fixed it with two screws 300 near LED lamp 101, be easy to again make LED lamp 101 beneath silicone grease to overflow, pollute reflection diaphragm, increased simultaneously the quantity of screw 300, greatly reduce production efficiency.
The utility model content
Main purpose of the present utility model, for a kind of backlight module and liquid crystal indicator are provided, are intended to make the fixing more firm of lamp bar and backboard, thereby improve the production efficiency of backlight module, reduces production costs, and increases the life-span of liquid crystal indicator.
The utility model provides a kind of backlight module, comprises backboard and is fixed on the lamp bar on described backboard, and some LED lamps are installed on described lamp bar, on described backboard, offers the groove of shape and described lamp bar adaptation, and described lamp bar is fixed in described groove.
Preferably, the LED lamp is installed on described lamp bar both sides offer through hole, position corresponding to described through hole on described groove is provided with two bending parts, and described through hole passes described bending part and the laminating of described groove, by the turnover of described two bending parts, described lamp bar is fixed.
Preferably, described bending part is perpendicular to the surface of described groove, and the described through hole that is arranged on LED lamp both sides passes described bending part, by described bending part, along described LED lamp, turns down round about described lamp bar is fixed in described groove.
Preferably, described lamp bar is set to the jigsaw structure.
Preferably, in the part between described two bending parts on described groove, be provided with elastic component, described elastic component is close in the bottom surface of described lamp bar.
Preferably, described elastic component is set to arc structure.
The utility model also provides a kind of liquid crystal indicator, comprise backlight module, described backlight module comprises backboard and is fixed on the lamp bar on described backboard, some LED lamps are installed on described lamp bar, on described backboard, offer the groove of shape and described lamp bar adaptation, described lamp bar is fixed in described groove.
The utility model by on backboard, offer shape and lamp bar adaptive, be used to the groove of lamp bar is installed; Bending part and the through hole that cooperatively interacts is set respectively on groove and lamp bar, after through hole passes bending part, turnover by bending part is carried out the lamp bar fastening, simultaneously, in the part between two bending parts for fixing same LED lamp on groove, also be provided with the elastic component that is arc structure, by the lamp bar, push the close contact that the elastic force that produces further realizes lamp bar and groove.Like this, when having guaranteed to make more firm fixing of lamp bar and backboard, improved the production efficiency of backlight module, reduced production cost, and increased to a great extent the life-span of liquid crystal indicator.
The accompanying drawing explanation
Fig. 1 is the fixing structural representation of lamp bar and backboard in prior art;
Fig. 2 is the structural representation of the utility model backlight module preferred embodiment;
Fig. 3 is the structural representation of the utility model backlight module dorsulum;
Fig. 4 is the structural representation of lamp bar in the utility model backlight module.
The realization of the utility model purpose, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
With reference to Fig. 2, Fig. 2 is the structural representation of the utility model backlight module preferred embodiment.
The backlight module that the present embodiment provides, comprise backboard 10 and lamp bar 20, and lamp bar 20 is fixed on backboard 10, and the quantity of lamp bar 20 can be set to a plurality of as required, and, several LED lamps 21 are installed on each lamp bar 20.In the present embodiment, on backboard 10, also offer groove 11, the shape of this groove 11 and lamp bar 20 adaptations, for accommodating lamp bar 20, when assembling, be mounted and fixed on lamp bar 20 in groove 11.Lamp bar 20 is mounted and fixed in the groove 11 that is opened on backboard 10, just can guarantee that lamp bar 20 contacts with the reliable of backboard 10, thereby reduce the temperature rise of LED lamp 21, and due to without using the heat conduction clearance material, thereby reduced the thermal resistance between lamp bar 20 and backboard 10, further realized radiating effect preferably.
With reference to Fig. 3 and Fig. 4, Fig. 3 is the structural representation of the utility model backlight module dorsulum; Fig. 4 is the structural representation of lamp bar in the utility model backlight module.
In the above-described embodiments, lamp bar 20 can be set to the jigsaw structure, namely can suitably increase the local area near the PCB zone of LED lamp 21 parts on lamp bar 20, and correspondingly reduce the local area away from the PCB zone of LED lamp 21 parts.Lamp bar 20 is arranged as this kind jigsaw structure, effectively improved the radiating efficiency of PCB zone and backboard 10 contact areas on lamp bar 20, reduced simultaneously the production cost of PCB.
The LED lamp is installed on described lamp bar both sides offer through hole, position corresponding to described through hole on described groove is provided with two bending parts, described through hole passes described bending part and the laminating of described groove, by the turnover of described two bending parts, described lamp bar is fixed.
Preferably, described bending part is perpendicular to the surface of described groove, and the described through hole that is arranged on LED lamp both sides passes described bending part, by described bending part, along described LED lamp, turns down round about described lamp bar is fixed in described groove.
Preferably, described lamp bar is set to the jigsaw structure.
Preferably, in the part between described two bending parts on described groove, be provided with elastic component, described elastic component is close in the bottom surface of described lamp bar.
In the above-described embodiments, a through hole 22 is respectively offered in LED lamp 21 is installed on lamp bar 20 both sides, simultaneously, the position corresponding to these two through holes 22 on groove 11 correspondingly is provided with two bending parts 12, during assembling, through hole 22 is passed to the bending part corresponding with it 12, at this moment, just fit with the surface of groove 11 in the bottom surface of lamp bar 20, then, by the turnover of these two bending parts 12, lamp bar 20 is fixed in groove 11.In the present embodiment, bending part 12 arranges perpendicular to the surface of groove 11, and the cross sectional shape of bending part 12 can arrange as required, and the shape of through hole 22 is set to get final product with the cross sectional shape of bending part 12 is adaptive; After two through holes 22 that are arranged on same LED lamp 21 both sides pass the bending part corresponding with it 12, two bending parts 12 are pressed in the opposite direction and it is turned down to the upper surface of being close to lamp bar 20 along LED lamp 21, just lamp bar 20 can be fixed in groove 11 more securely.
In the above-described embodiments, in the part between two bending parts 12 for fixing same LED lamp 21 on groove 11, also be provided with elastic component 13, in the present embodiment, this elastic component 13 can be set to arc structure, and can be formed on the surface of groove 11 by the mode of punching press.After by bending part 12, being fixed on lamp bar 20 in groove 11, the bottom surface of lamp bar 20 makes it produce certain elastic deformation to the extruding of elastic component 13, makes lamp bar 20 be close to elastic component 13; In the present embodiment, the PCB part of lamp bar 20 can also be set to flexible material, after lamp bar 20 extruding elastic components 13, the PCB of lamp bar 20 also can produce a little bending, produce the elastic connecting touch, because thermal resistance is very little, thereby, without between lamp bar 20 and backboard 10, using the heat conduction clearance material, also can guarantee well the close contact of lamp bar 20 and groove 11.
The utility model embodiment, by offering shape and lamp bar 20 adaptations, groove 11 be used to lamp bar 20 is installed on backboard 10; Bending part 12 and the through hole 22 that cooperatively interacts is set respectively on groove 11 and lamp bar 20, after through hole 22 passes bending part 12, turnover by bending part 12 is carried out lamp bar 20 fastening, simultaneously, in the part between two bending parts 12 for fixing same LED lamp 21 on groove 11, also be provided with the elastic component 13 that is arc structure, by lamp bar 20, push the close contact that the elastic force that produces further realizes lamp bar 20 and groove 11.Like this, when having guaranteed to make more firm fixing of lamp bar 20 and backboard 10, improved the production efficiency of backlight module, reduced production cost, and increased to a great extent the life-span of liquid crystal indicator.
The utility model also provides a kind of liquid crystal indicator.
The liquid crystal indicator that the present embodiment provides, comprise backlight module, and backlight module comprises backboard 10 and lamp bar 20, lamp bar 20 is fixed on backboard 10, the quantity of lamp bar 20 can be set to a plurality of as required, and, several LED lamps 21 are installed on each lamp bar 20.In the present embodiment, on backboard 10, also offer groove 11, the shape of this groove 11 and lamp bar 20 adaptations, for accommodating lamp bar 20, when assembling, be mounted and fixed on lamp bar 20 in groove 11.
This liquid crystal indicator has also comprised the other technologies scheme of above-mentioned backlight module embodiment, and the technique effect that reaches is also identical, at this, does not do and repeats.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (7)
1. a backlight module, comprise backboard and be fixed on the lamp bar on described backboard, and some LED lamps are installed on described lamp bar, it is characterized in that, on described backboard, offer the groove of shape and described lamp bar adaptation, described lamp bar is fixed in described groove.
2. backlight module according to claim 1, it is characterized in that, the LED lamp is installed on described lamp bar both sides offer through hole, position corresponding to described through hole on described groove is provided with two bending parts, described through hole passes described bending part and the laminating of described groove, by the turnover of described two bending parts, described lamp bar is fixed.
3. backlight module according to claim 2, it is characterized in that, described bending part is perpendicular to the surface of described groove, and the described through hole that is arranged on LED lamp both sides passes described bending part, by described bending part, along described LED lamp, turns down round about described lamp bar is fixed in described groove.
4. backlight module according to claim 3, is characterized in that, described lamp bar is set to the jigsaw structure.
5. the described backlight module of any one according to claim 2 to 4, is characterized in that, in the part between described two bending parts on described groove, is provided with elastic component, and described elastic component is close in the bottom surface of described lamp bar.
6. backlight module according to claim 5, is characterized in that, described elastic component is set to arc structure.
7. a liquid crystal indicator, is characterized in that, comprises backlight module as described as any one in claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201433792U CN203298070U (en) | 2013-03-26 | 2013-03-26 | Backlight module and liquid crystal displaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201433792U CN203298070U (en) | 2013-03-26 | 2013-03-26 | Backlight module and liquid crystal displaying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203298070U true CN203298070U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201433792U Expired - Fee Related CN203298070U (en) | 2013-03-26 | 2013-03-26 | Backlight module and liquid crystal displaying device |
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| CN (1) | CN203298070U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807490A (en) * | 2016-05-10 | 2016-07-27 | 京东方科技集团股份有限公司 | Backlight module, assembling method thereof and display device |
| CN106724053A (en) * | 2016-12-01 | 2017-05-31 | 惠州市斯坦利科技有限公司 | Storage structures |
| CN109859620A (en) * | 2019-03-11 | 2019-06-07 | 京东方科技集团股份有限公司 | Backlight module and display device |
-
2013
- 2013-03-26 CN CN2013201433792U patent/CN203298070U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807490A (en) * | 2016-05-10 | 2016-07-27 | 京东方科技集团股份有限公司 | Backlight module, assembling method thereof and display device |
| WO2017193655A1 (en) * | 2016-05-10 | 2017-11-16 | 京东方科技集团股份有限公司 | Backlight module and method for assembling same, and display device |
| US10197851B2 (en) | 2016-05-10 | 2019-02-05 | Boe Technology Group Co., Ltd. | Backlight module and method for assembling the same, and display device |
| CN106724053A (en) * | 2016-12-01 | 2017-05-31 | 惠州市斯坦利科技有限公司 | Storage structures |
| CN109859620A (en) * | 2019-03-11 | 2019-06-07 | 京东方科技集团股份有限公司 | Backlight module and display device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20210326 |