CN202403051U - LED (Light-Emitting Diode)lamp bar, backlight module and liquid crystal television - Google Patents
LED (Light-Emitting Diode)lamp bar, backlight module and liquid crystal television Download PDFInfo
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- CN202403051U CN202403051U CN201120574793XU CN201120574793U CN202403051U CN 202403051 U CN202403051 U CN 202403051U CN 201120574793X U CN201120574793X U CN 201120574793XU CN 201120574793 U CN201120574793 U CN 201120574793U CN 202403051 U CN202403051 U CN 202403051U
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- led lamp
- lamp bar
- pcb board
- plug
- socket
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Abstract
The utility model relates to the lighting technical field and provides an LED (Light-Emitting Diode) lamp bar, a backlight module and a liquid crystal television, wherein the LED lamp bar comprises at least two LED lamp bar elements and a connector for electrically connecting all the LED lamp bars together; each LED lamp bar element comprises a PCB (Printed Circuit Board) and an LED lamp bead arranged on the top surface thereof; a line layer is arranged on the top surface of the PCB; the LED lamp bear is electrically connected to the line layer; the connector comprises a plug and a socket, the two of which are arranged on the bottom surfaces of the adjacent PCBs, respectively; and terminals capable of extending to the top surface of each PCB and electrically connected to each line layer are arranged on the plug and the socket, respectively. As for the LED lamp bar, the line layer is arranged on one single surface of the PCB so that the heat dissipation performance is better than that of a double-layer PCB; simultaneously, the plug and the socket of the connector are arranged on the bottom surfaces of the PCBs and the terminals extend to the top surfaces of the PCBs and are electrically connected to the line layer; and in this way, the plug and the socket can not affect the arrangement of a reflector plate when the LED lamp bar is applied to the liquid crystal television, and the formation of shadows is avoided.
Description
Technical field
The utility model relates to lighting technical field, more particularly, relates to a kind of LED lamp bar, adopts the module backlight and the liquid crystal TV set of this lamp bar.
Background technology
The use of LCD TV is in recent years popularized comprehensively, and module backlight is one of key component of LCD TV.Because LCDs itself is not luminous, the light source that the major function of module backlight just provides enough brightness and is evenly distributed makes its normally show image.Divide from the classification of light source, can be divided into CCFL (ColdCathode Fluorescent Lamp, cold cathode fluorescent lamp pipe) module backlight and LED-backlit module etc.And the LED-backlit module has low-power consumption with it, does not contain heavy metal, and environmental protection can high-speed switch be beneficial to plurality of advantages such as local dimming and becomes the main flow in market.The LED-backlit module is divided into direct-light type LED backlight module and side light type LED back light module again.
LED lamp bar is the significant components of LED-backlit module.The lamp bar uses PCB to process, and PCB can adopt aluminum-based circuit board, FR4 wiring board, CEM series circuit board or the like.Owing to receive the processing procedure and the device-restrictive of wiring board; The length of the length of wiring board can only be accomplished about 600mm; When the length of module backlight the time greater than 600mm; One group of lamp bar of general down straight aphototropism mode set promptly need adopt two or more lamp bars in the horizontal direction, and each lamp bar need take a drive channels.As shown in fig. 1, be the scheme of installation of LED lamp bar in the existing module backlight.When needing 6 groups of 100 ' times of LED lamp bar in vertical direction, then need at least the 6*2=12 road drive 200 '.Each driving 200 ' need corresponding drive IC to accomplish so the increase of drive channels also directly increases the quantity of drive IC, has also increased the cost of module backlight.
As shown in Figure 2, also having occurred the employing connector in the prior art connects LED lamp bar fixing.Shown in the figure, LED lamp bar 100 ' on LED lamp pearl 300 ' be fixed in pcb board 400 ' upper surface, and connector 500 ' through two pcb boards 400 ' lower surface be fixedly connected.Adopt this connected mode, pcb board 400 ' be necessary for two-sided pcb board, and two-sided pcb board radiating effect is poor.For satisfied heat radiation requirement, the pcb board 400 of LED lamp bar 100 ' employing ' change the single face pcb board gradually into, whole shop, back side Copper Foil dispels the heat, and is electrically connected and be not used in.So the connected mode of above-mentioned connector is also inapplicable.
As shown in Figure 3, be another kind of LED lamp bar connected mode in the prior art, pcb board 400 in this mode ' employing single face PCB; So with LED lamp pearl 300 ' and connector 500 ' all be fixed in pcb board 400 ' upper surface; Though solved like this pcb board 400 ' heat dissipation problem, bring new problem simultaneously again, because connector 500 ' have a certain height; Itself and LED lamp pearl 300 ' the same side are provided with; And LED lamp pearl 300 ' on the reflector plate (not shown) will be set, so because of connector 500 ' stop, reflector plate can't press close to LED lamp bar 100 '; Must be on reflector plate and the perforate of connector 500 ' corresponding position, again shadow can appear like this when showing.
The utility model content
The utility model technical problem to be solved is to overcome the defective of prior art, and a kind of heat radiation requirement of satisfying is provided, simultaneously avoid again occurring shade LED lamp bar, adopt the module backlight of this lamp bar and the liquid crystal TV set that adopts this module backlight.
For solving the problems of the technologies described above; The technical scheme of the utility model is: a kind of LED lamp bar is provided; The connector that comprises at least two LED lamp bar elements and each LED lamp bar element is electrically connected on one; Each said LED lamp bar element includes pcb board and is located at the LED lamp pearl on the pcb board end face; Said pcb board end face is provided with line layer, and said LED lamp pearl is electrically connected with said line layer, and said connector comprises can be adjacent the plug and socket that member plugs together each other; The bottom surface that said plug and socket are located at the pcb board of adjacent two LED lamp bar elements respectively borders on the position, is respectively equipped with the terminal that may extend to each pcb board end face and be electrically connected with said each line layer on the said plug and socket.
Particularly, said plug and socket is located at the bottom at each pcb board edge respectively, and the terminal of each plug and the terminal of socket extend upward along each pcb board edge respectively and fit with surface-pasted mode and each line layer.
Preferably, the terminal of the terminal of said plug or socket is sheet metal or flexible winding displacement.
Perhaps, each pcb board top is equipped with the pins type pad that is electrically connected with each line layer, and the terminal of each said plug and the terminal of socket are stitch, and said each stitch passes pcb board by the bottom surface of each pcb board and inserts in the corresponding pins type pad.
Particularly, said plug is row's pin, and said socket is row's seat.
The utility model also provides a kind of module backlight, comprises LED lamp bar, places reflector plate and light guide sheet on the said LED lamp bar, and said LED lamp bar has and the above-mentioned identical structure of LED lamp bar.
The utility model also provides a kind of liquid crystal TV set, comprises LCDs, metal backing and frame, comprises that also being located at said LCDs, metal backing and frame surrounds the module backlight in the cavity.
Further, the connector place on the said metal backing on the LED lamp bar of corresponding said module backlight is provided with opening, and said connector is provided with and can draws the outer lead of said metal backing by said opening.
In the utility model, the pcb board single face is provided with line layer, avoids the use of double-deck pcb board and the problem of radiating effect difference occurs; On this basis, the plug and socket of connector is arranged on the bottom surface of pcb board, simultaneously terminal is extended to end face and be electrically connected with line layer, like this, the setting of reflector plate did not avoid occurring shade when plug and socket can not influence LED lamp bar and be applied to LCD TV.
Description of drawings
Fig. 1 is the scheme of installation of LED lamp bar in the module backlight in the prior art;
Fig. 2 is the structural representation of a kind of LED lamp bar in the prior art;
Fig. 3 is the structural representation of another kind of LED lamp bar in the prior art;
Fig. 4 is the structural representation of the LED lamp bar that provides of the utility model first embodiment;
Fig. 5 is an A place enlarged drawing among Fig. 4;
Fig. 6 is the structural representation of the LED lamp bar that provides of the utility model second embodiment;
Fig. 7 is a B place enlarged drawing among Fig. 6;
Fig. 8 is the structural representation that module backlight that the new embodiment of this practicality provides is installed on liquid crystal TV set.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The technical scheme of the utility model is based on that such scene invents; The existing single led lamp bar limited length of manufacturing out when being used to make the module backlight of large-size, needs arrange the assembly group to a plurality of LED lamp bars; Need multichannel to drive like this; And be to reduce driving element quantity, save cost, adopt connector that LED lamp bar is coupled together.And in the at present general connector connected mode, then existing radiating effect poor again, connector is installed the back and is difficult for placing reflector plate, problems such as shade can occur.Based on such technical problem; The utility model provides a kind of LED lamp bar; The connector that comprises at least two LED lamp bar elements and each LED lamp bar element is electrically connected on one; Each said LED lamp bar element includes pcb board and is located at the LED lamp pearl on the pcb board end face; Said pcb board end face is provided with line layer, and said LED lamp pearl is electrically connected with said line layer, and said connector comprises can be adjacent the plug and socket that member plugs together each other; Said plug and socket be located at respectively adjacent two LED lamp bar elements pcb board the bottom surface border on the position, be respectively equipped with the terminal that may extend to each pcb board end face and be electrically connected on the said plug and socket with each line layer.In the utility model, the pcb board single face is provided with line layer, avoids the use of double-deck pcb board and the problem of radiating effect difference occurs; On this basis, the plug and socket of connector is arranged on the bottom surface of pcb board, simultaneously terminal is extended to end face and be electrically connected with line layer, like this, the setting of reflector plate did not avoid occurring shade when plug and socket can not influence LED lamp bar and be applied to LCD TV.
Below in conjunction with accompanying drawing and various embodiment the concrete realization of the utility model is further detailed.
Embodiment one
As shown in Figure 4, first embodiment of the LED lamp bar that provides for the utility model, said LED lamp bar, the connector that comprises two LED lamp bar elements and two LED lamp bar elements are electrically connected on one.For the ease of explanation, two LED lamp bar elements are defined as a LED lamp bar element 100 and the 2nd LED lamp bar element 200 respectively here.Need to prove that the LED lamp bar quantity in the utility model is not limited to two in the present embodiment, it can specifically be provided with according to actual needs.
In the present embodiment; The one LED lamp bar element 100 comprises first pcb board 110 and is located at the some LED lamp pearls 120 on first pcb board, 110 end faces; First pcb board, 110 end faces are provided with the first line layer (not shown), and a LED lamp pearl 120 is electrically connected with first line layer; Likewise; The 2nd LED lamp bar element 200 comprises second pcb board 210 and is located at some the 2nd LED lamp pearls 220 on second pcb board, 210 end faces; Second pcb board, 210 end faces are provided with the second line layer (not shown), and the 2nd LED lamp pearl 220 is electrically connected with second line layer.
By finding out among Fig. 5, connector 300 comprises the plug 310 and the socket 320 that can plug together each other.Plug 310 is located at bottom surface and the position that second pcb board 210 is bordered on of first pcb board 110 of a LED lamp bar element 100; It is the bottom that plug 310 is positioned at first pcb board, 110 edges; Plug 310 is provided with a plug terminal 311, and plug terminal 311 extends upward along first pcb board, 110 edges and fits with the surface-pasted mode and first line layer; Likewise; Socket 320 is located at bottom surface and the position that first pcb board 110 is bordered on of second pcb board 210 of the 2nd LED lamp bar element 200; It is the bottom that socket 320 is positioned at second pcb board, 210 edges; Socket 320 is provided with a female terminal 321, and female terminal 321 extends upward along second pcb board, 210 edges and fits with the surface-pasted mode and second line layer.Like this; Because plug 310 and socket 320 all are located at the bottom surface of each pcb board, with LED lamp pearl be different plane, and extend to plug terminal 311 and the female terminal 321 of each pcb board end face because what adopt is that surface-pasted mode is installed; Its thinner thickness; When reflector plate is installed, can the placement of reflector plate not impacted, shade can not appear.
Preferably, in the present embodiment, plug terminal 311 or female terminal 321 are sheet metal or flexible winding displacement.These two kinds of terminal structure flexibilities are good, can bend arbitrarily, and stickiness are good, can guarantee to be connected with the reliable of line layer.
In the present embodiment, plug 310 is row's pin, and socket 320 is row's seat.This plug 310 is simple in structure with socket 320, can directly buy from the market, and cost is low, and certainly, plug 310 also can adopt other structure with socket 320.
Embodiment two
With reference to Fig. 6, in the present embodiment, the connector 300 that said LED lamp bar also comprises two LED lamp bar elements and two LED lamp bar elements is electrically connected on one.For the ease of explanation, also these two LED lamp bar elements are defined as a LED lamp bar element 100 and the 2nd LED lamp bar element 200 respectively.Two LED lamp bar component structures are identical among a LED lamp bar element 100 in the present embodiment and the 2nd LED lamp bar element 200 and first embodiment, the concrete structure of each LED lamp bar element do not given unnecessary details here.
Present embodiment is different from structure and the mounting means difference that the first embodiment part is connector 300.With reference to Fig. 7; Connector 300 comprises the plug 310 and the socket 320 that can plug together each other; Plug 310 is located at bottom surface and the position that second pcb board 210 is bordered on of first pcb board 110 of a LED lamp bar element 100, and first pcb board, 110 end faces are provided with the pins type pad (not shown) that is electrically connected with first line layer, and plug 310 is provided with plug terminal 311; Plug terminal 311 is a stitch, and its bottom surface by first pcb board 110 is passed first pcb board 110 and inserted in the corresponding pins type pad; Likewise; Socket 320 is located at bottom surface and the position that first pcb board 110 is bordered on of second pcb board 210 of the 2nd LED lamp bar element 200; Socket 320 is provided with female terminal 321; Female terminal 321 also is a stitch, and its bottom surface by second pcb board 210 is passed second pcb board 210 and inserted in the corresponding pins type pad.Like this; Because plug 310 and socket 320 all are located at the bottom surface of each pcb board, with LED lamp pearl be different plane, can not influence the placement of reflector plate; And the plug terminal 311 and the female terminal 321 that extend to each pcb board end face are that stitch is installed owing to what adopt; This connected mode makes the limitation in height of pcb board end face add the height of scolding tin at the thickness of stitch, and whole height generally is no more than 2mm, when being applied to module backlight; Equally can not influence the setting of reflector plate on each pcb board yet, can not cause on the module backlight shadow to occur.
Likewise, in the present embodiment, plug 310 is row's pin, and socket 320 is row's seat.This plug 310 is simple in structure with socket 320, can directly buy from the market, and cost is low, and certainly, plug 310 also can adopt other structure with socket 320.
The utility model also provides a kind of module backlight, and is as shown in Figure 8, and it comprises LED lamp bar 400, places light guide sheet 600 and reflector plate (not shown) on the LED lamp bar, LED lamp bar 400 with have the above-mentioned identical structure of LED lamp bar, do not give unnecessary details here.As shown in Figure 8; The utility model also provides a kind of liquid crystal TV set; Liquid crystal TV set comprises LCDs 500, metal backing (not shown) and frame (not shown), and module backlight places in the cavity that LCDs 500, metal backing (not shown) and frame (not shown) surround.In the present embodiment, connector 300 places on the metal backing on the LED lamp bar of corresponding module backlight are provided with opening, and connector 300 is provided with and can draws the outer lead of metal backing by opening.When needs are done local dimming, directly carry out cabling through stretching out metal outer conductor backlight, need not make complicated wiring board, provide cost savings, assemble also more convenient.As shown in Figure 8; The module backlight that is applied to liquid crystal TV set is a straight-down negative LED module; Its every group of LED lamp bar 400 two LED lamp bar elements through above-mentioned connector 300 (not shown) that is formed by connecting; On each LED lamp bar element 4 LED lamp pearls are arranged, after connecting through connector 300, the LED lamp pearl on each LED lamp bar is 8.Owing to adopt connector 300 to connect, for 6 groups of LED lamp bars, only need 6 road driving elements to realize, need 12 the road to drive when not adopting connector 300, the price of 6 road driving elements is about half of 12 road driving element prices, reduces cost greatly.Simultaneously, owing to adopt connector 300 structures (not shown among Fig. 7) among embodiment one or the embodiment two, avoid occurring causing shadow because of connector 300.Simultaneously, the opening that corresponding junction is provided with on the metal backing also is convenient to by the metal backing outer lead, makes things convenient for local dimming to handle.
More than be merely the preferred embodiment of the utility model,, any modification of being done within all spirit at the utility model and the principle, be equal to and replace and improvement etc., all should be included within the protection domain of the utility model not in order to restriction the utility model.
Claims (8)
1. LED lamp bar; The connector that comprises at least two LED lamp bar elements and each LED lamp bar element is electrically connected on one; Each said LED lamp bar element includes pcb board and is located at the LED lamp pearl on the pcb board end face; Said pcb board end face is provided with line layer, and said LED lamp pearl is electrically connected with said line layer, it is characterized in that: said connector comprises can be adjacent the plug and socket that member plugs together each other; The bottom surface that said plug and socket are located at the pcb board of adjacent two LED lamp bar elements respectively borders on the position, is respectively equipped with the terminal that may extend to each pcb board end face and be electrically connected with said each line layer on the said plug and socket.
2. a kind of LED lamp bar as claimed in claim 1; It is characterized in that: said plug and socket is located at the bottom at each pcb board edge respectively, and the terminal of each plug and the terminal of socket extend upward along each pcb board edge respectively and fit with surface-pasted mode and each line layer.
3. a kind of LED lamp bar as claimed in claim 2, it is characterized in that: the terminal of said plug or the terminal of socket are sheet metal or flexible winding displacement.
4. a kind of LED lamp bar as claimed in claim 1; It is characterized in that: each pcb board top is equipped with the pins type pad that is electrically connected with each line layer; The terminal of each said plug and the terminal of socket are stitch, and said each stitch passes pcb board by the bottom surface of each pcb board and inserts in the corresponding pins type pad.
5. like each described a kind of LED lamp bar in the claim 1 to 4, it is characterized in that: said plug is row's pin, and said socket is row's seat.
6. a module backlight comprises LED lamp bar, places reflector plate and light guide sheet on the said LED lamp bar, it is characterized in that: said LED lamp bar have with claim 1 to 5 in the identical structure of each described LED lamp bar.
7. a liquid crystal TV set comprises LCDs, metal backing and frame, it is characterized in that: comprise that also being located at said LCDs, metal backing and frame surrounds the module as claimed in claim 6 backlight in the cavity.
8. liquid crystal TV set as claimed in claim 7 is characterized in that: the connector place on the said metal backing on the LED lamp bar of corresponding said module backlight is provided with opening, and said connector is provided with and can draws the outer lead of said metal backing by said opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120574793XU CN202403051U (en) | 2011-12-30 | 2011-12-30 | LED (Light-Emitting Diode)lamp bar, backlight module and liquid crystal television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120574793XU CN202403051U (en) | 2011-12-30 | 2011-12-30 | LED (Light-Emitting Diode)lamp bar, backlight module and liquid crystal television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202403051U true CN202403051U (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120574793XU Expired - Lifetime CN202403051U (en) | 2011-12-30 | 2011-12-30 | LED (Light-Emitting Diode)lamp bar, backlight module and liquid crystal television |
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| Country | Link |
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| CN (1) | CN202403051U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307560A (en) * | 2013-06-28 | 2013-09-18 | 四川长虹光电有限公司 | Fixing structure for LED light bar socket |
| CN103322534A (en) * | 2013-06-21 | 2013-09-25 | 深圳市华星光电技术有限公司 | Direct-light-type backlight module lamp strip assembly structure, assembly method and liquid crystal display |
| CN104180255A (en) * | 2014-09-09 | 2014-12-03 | 深圳市华星光电技术有限公司 | Lamp bar assembly, backlight module and liquid crystal display |
| CN108716631A (en) * | 2018-07-26 | 2018-10-30 | 合肥惠科金扬科技有限公司 | Segmented backlight lamp, backlight module and display |
| CN109541844A (en) * | 2018-11-07 | 2019-03-29 | 惠州市华星光电技术有限公司 | Light-emitting diode light bar and backlight module |
| CN116772131A (en) * | 2023-06-26 | 2023-09-19 | 惠科股份有限公司 | Lamp panel, manufacturing method of lamp panel and display device |
-
2011
- 2011-12-30 CN CN201120574793XU patent/CN202403051U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322534A (en) * | 2013-06-21 | 2013-09-25 | 深圳市华星光电技术有限公司 | Direct-light-type backlight module lamp strip assembly structure, assembly method and liquid crystal display |
| CN103307560A (en) * | 2013-06-28 | 2013-09-18 | 四川长虹光电有限公司 | Fixing structure for LED light bar socket |
| CN103307560B (en) * | 2013-06-28 | 2015-08-19 | 四川长虹光电有限公司 | The fixed structure of LED light bar socket |
| CN104180255A (en) * | 2014-09-09 | 2014-12-03 | 深圳市华星光电技术有限公司 | Lamp bar assembly, backlight module and liquid crystal display |
| CN108716631A (en) * | 2018-07-26 | 2018-10-30 | 合肥惠科金扬科技有限公司 | Segmented backlight lamp, backlight module and display |
| CN109541844A (en) * | 2018-11-07 | 2019-03-29 | 惠州市华星光电技术有限公司 | Light-emitting diode light bar and backlight module |
| WO2020093511A1 (en) * | 2018-11-07 | 2020-05-14 | 惠州市华星光电技术有限公司 | Light emitting diode lamp bar and backlight module |
| CN116772131A (en) * | 2023-06-26 | 2023-09-19 | 惠科股份有限公司 | Lamp panel, manufacturing method of lamp panel and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
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| CX01 | Expiry of patent term |