CN203533455U - Direct-type LED backlight module light strip fixing structure - Google Patents
Direct-type LED backlight module light strip fixing structure Download PDFInfo
- Publication number
- CN203533455U CN203533455U CN201320654649.6U CN201320654649U CN203533455U CN 203533455 U CN203533455 U CN 203533455U CN 201320654649 U CN201320654649 U CN 201320654649U CN 203533455 U CN203533455 U CN 203533455U
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- lamp bar
- light strip
- direct
- type led
- led backlight
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Abstract
The utility model discloses a direct-type LED backlight module light strip fixing structure which comprises a light strip attached to a back plate and a fixing piece used for fixing the light strip. The light strip is arranged on a light strip PCB and reflection paper is arranged below the light strip. A light pole structure is arranged at the position, close to the rear end, of the fixing piece, a fixing hole is formed in the light strip, the diameter of the light pole structure is larger than the inner diameter of the fixing hole, and the length of the light pole structure is larger than the sum of the thickness of the light strip PCB and the thickness of the reflection paper. The direct-type LED backlight module light strip fixing structure is used for improving the phenomenon of backlight lamp shadows or dark shadows caused by turning-up of a light strip in a direct-type LED backlight module, and can effectively guarantee the uniformity of luminous face properties. Compared with an existing direct-type LED backlight module lamp strip fixing mode, the structure that a screw of a special structure and a lamp strip screw hole are matched is adopted, on the premise that the cost is not increased, poor optical properties such as lamp shadows and dark shadows of a backlight module can be effectively improved and the structure has the advantages of being simple and convenient to disassemble and assemble, safe and reliable.
Description
Technical field
The utility model relates to a kind of straight-down negative LED LCD TV, is specifically related to a kind of direct-light type LED backlight lamp module lamp bar fixed structure.
Background technology
From principle, liquid crystal display similarly is those advertising lamp boxs of street corner a bit, and light source behind, through certain diffusion, is radiated at equably on the transparent film that is painted with picture, thereby transmits beautiful picture.Liquid crystal board similarly is that layer of film, but picture is wherein to become.LED TV refers to and adopts LED(light emitting diode completely) as the television set of video picture device, be generally used for low precision and show or outdoor large screen.In the household electric appliances of CONTINENTAL AREA OF CHINA, the strict title of LED TV of indication is " LED-backlit source LCD TV " conventionally, it has substituted traditional fluorescent tube with LED light source, and picture is high-quality more, and the theoretical life-span is longer, manufacture craft is environmental protection more, and can make display panels thinner.The mode that the fixing general employing screw of straight-down negative LED liquid crystal module lamp bar combines with press strip at present, when backboard distortion or lamp bar work heating expansion, because lamp bar hold-down screw is locked by lamp bar, cause lamp bar length direction to be squeezed, cause lamp bar to arch upward, the subjective phenomenon that produces lamp shadow and shadow of optics, on optics, taste brings very large impact.
Utility model content
The utility model has overcome the deficiencies in the prior art, a kind of direct-light type LED backlight lamp module lamp bar fixed structure is provided, to LED-backlit lamp module lamp bar fixed form in prior art to be solved, because lamp bar hold-down screw is locked by lamp bar, cause lamp bar length direction to be squeezed, cause lamp bar to arch upward, the subjective phenomenon that produces lamp shadow and shadow of optics.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A direct-light type LED backlight lamp module lamp bar fixed structure, comprises with the lamp bar of backboard laminating with for the fixture of fixed light bar; It is upper that lamp bar is arranged on lamp bar PCB, is provided with reflecting paper below lamp bar; On described fixture, near back-end location, be polished rod structure; On described lamp bar, be provided with fixing hole; Described polished rod diameter of movement is greater than described fixing hole internal diameter; Described polished rod structure length is greater than thickness and the reflecting paper thickness sum of lamp bar PCB.
Further technical scheme is that fixture is screw or bolt.
Further technical scheme is on lamp bar, to be provided with two fixing holes; Described fixture has two.
Further technical scheme be in two fixing holes one be circular fixing hole, another is oval fixing hole.
Further technical scheme is to be provided with gap between lamp bar and backboard.
Compared with prior art, the beneficial effects of the utility model are: the utility model, for improving direct-light type LED backlight module due to lamp shadow backlight or shadow phenomenon that lamp bar warpage causes, can effectively guarantee the uniformity of light-emitting area taste.Compare existing direct-light type LED backlight module lamp bar fixed form, the structure that the utility model adopts special construction screw to match with lamp bar screw hole, under the prerequisite that does not increase cost, can effectively improve the bad optics taste such as lamp shadow, shadow of backlight module, there is dismounting easy, safe and reliable feature.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the structural representation of lamp bar in embodiment of the utility model.
Fig. 3 is the structural representation of fixture in embodiment of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figures 1 to 3, Fig. 1 shows the structural representation of an embodiment of the utility model.The present embodiment direct-light type LED backlight lamp module lamp bar fixed structure, comprises and the lamp bar 3 of backboard 1 laminating, is lamp bar 21 in Fig. 2; With the fixture 2 for fixed light bar; Reflecting paper 4 is arranged on backboard, and specific embodiment is, in the present embodiment, fixture can be screw or bolt, and it is that screw is example that the present embodiment be take fixture.Preferred embodiment is that in the present embodiment, fixture is being polished rod structure near back-end location; On lamp bar 3, be provided with fixing hole; Preferably, polished rod diameter of movement is greater than described fixing hole internal diameter; Polished rod structure length is greater than lamp bar PCB and end reflection gross thickness, and end reflection is the part that reflecting paper is arranged on lamp bar bottom.The present embodiment adopts novel screw to match with lamp bar, and screw is at close screw back-end location, and being nut 31 positions has one section without screw thread polished rod structure 32, and polished rod structure bottom is helicitic texture 33.Preferably, polished rod diameter of movement is greater than backboard screw hole internal diameter, and polished rod structure length is slightly larger than lamp bar PCB and end reflection gross thickness; Lamp bar is fixed two screws at two ends, this example is placed vertically as example explanation with lamp bar, near a day side lamp bar screw hole, adopts circular hole 23, and for lamp bar fine positioning, the other end adopts slotted hole 22 oval, is beneficial to the stretching, extension of lamp bar length direction; When lamp bar traverse, fine positioning is in close socket orientation.
As preferred embodiment, in the present embodiment, after screw fixed light bar, while fitting tightly between lamp bar and backboard, still have certain interval (GAP), when warpage appears in backboard, now lamp bar length direction extrusion stress is discharged at slotted hole place.
" embodiment " that spoken of in this manual, " another embodiment ", " embodiment ", etc., refer to specific features, structure or the feature in conjunction with this embodiment, described and be included at least one embodiment that the application's generality describes.In description, a plurality of local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while describing a specific features, structure or feature in conjunction with any embodiment, what advocate is in conjunction with other embodiment, to realize this feature, structure or feature also to drop in scope of the present utility model.
Although a plurality of explanatory embodiment with reference to utility model is described the utility model here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and within embodiment will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (5)
1. a direct-light type LED backlight lamp module lamp bar fixed structure, comprises with the lamp bar of backboard laminating with for the fixture of fixed light bar; It is upper that lamp bar is arranged on lamp bar PCB, is provided with reflecting paper below lamp bar; It is characterized in that: on described fixture, near back-end location, be polished rod structure; On described lamp bar, be provided with fixing hole; Described polished rod diameter of movement is greater than described fixing hole internal diameter; Described polished rod structure length is greater than thickness and the reflecting paper thickness sum of lamp bar PCB.
2. direct-light type LED backlight lamp module lamp bar fixed structure according to claim 1, is characterized in that described fixture is screw or bolt.
3. direct-light type LED backlight lamp module lamp bar fixed structure according to claim 1 and 2, is characterized in that being provided with two fixing holes on described lamp bar; Described fixture has two.
4. direct-light type LED backlight lamp module lamp bar fixed structure according to claim 3, is characterized in that in two described fixing holes that one is circular fixing hole, and another is oval fixing hole.
5. direct-light type LED backlight lamp module lamp bar fixed structure according to claim 1, is characterized in that being provided with gap between described lamp bar and backboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654649.6U CN203533455U (en) | 2013-10-22 | 2013-10-22 | Direct-type LED backlight module light strip fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654649.6U CN203533455U (en) | 2013-10-22 | 2013-10-22 | Direct-type LED backlight module light strip fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203533455U true CN203533455U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320654649.6U Expired - Fee Related CN203533455U (en) | 2013-10-22 | 2013-10-22 | Direct-type LED backlight module light strip fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203533455U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061257A (en) * | 2017-12-08 | 2018-05-22 | 广州创维平面显示科技有限公司 | A kind of backlight module and display device |
| CN109545083A (en) * | 2019-01-02 | 2019-03-29 | 京东方科技集团股份有限公司 | A kind of backlight module and display device |
-
2013
- 2013-10-22 CN CN201320654649.6U patent/CN203533455U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061257A (en) * | 2017-12-08 | 2018-05-22 | 广州创维平面显示科技有限公司 | A kind of backlight module and display device |
| CN109545083A (en) * | 2019-01-02 | 2019-03-29 | 京东方科技集团股份有限公司 | A kind of 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 |
Granted publication date: 20140409 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |