CN202182365U - LED light strip, side light type backlight module and display - Google Patents
LED light strip, side light type backlight module and display Download PDFInfo
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- CN202182365U CN202182365U CN2011202856282U CN201120285628U CN202182365U CN 202182365 U CN202182365 U CN 202182365U CN 2011202856282 U CN2011202856282 U CN 2011202856282U CN 201120285628 U CN201120285628 U CN 201120285628U CN 202182365 U CN202182365 U CN 202182365U
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- lamp bar
- led lamp
- display
- line layer
- led
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Abstract
The utility model is suitable for the field of displaying and lighting, and provides an LED (Light Emitting Diode) light strip, a side light type backlight module and a display. The LED light strip comprises a radiating metal strip, wherein a heat conducting insulating layer and a line layer are laminated in order on a surface of the metal strip, and a plurality of LED chips are continuously arranged on a surface of the line layer. According to the utility model, the radiating metal strip, the heat conducting insulating layer, the line layer and the LED chips are attached together in order to form a light strip which integrates luminescence and radiating together, thus compared with the traditional light strip, a structure of the light strip is simplified. In the process of designing a backlight of the display, the light strip can be directly installed onto a backboard of the display without attaching the light strip and a radiating aluminium strip together in advance, thus process of the backlight design can be simplified, and the problem of high defective fraction caused by the complicated process can be solved to some extent. The thickness of the LED light strip in the utility model is less than the thickness of the traditional light strip, thus the LED light strip is beneficial to a narrow-edge design of the display when used as the backlight of the display.
Description
Technical field
The utility model belongs to demonstration, lighting field, relates in particular to a kind of LED lamp bar, side-light type module backlight and display.
Background technology
In conjunction with figure a, the b in the accompanying drawing 1; The back light part of available liquid crystal TV or computer monitor is design usually like this: LED lamp bar 11 is fixed on the heat radiation aluminum strip 13 through connector such as screw or thermal conductive insulation glue 12; The LED lamp bar 11 that will have the aluminum strip 13 that dispels the heat then is installed in through connector on the backboard 14 of display, and the emergent light direction at lamp bar 11 is provided with LGP 15 to reach all purposes of light then.Wherein, the basic structure of LED lamp bar 11 is: substrate 111, and at heat conductive insulating layer 112, conductive layer 113 and the led chip 114 of substrate 111 superimposed layers setting.The lamp bar that has the aluminum strip 13 that dispels the heat has promptly increased one deck thermal conductive insulation glue 12 and aluminum strip 13 on this basis.This lamp bar parts are more, and the assembly process more complicated has improved the bad probability of generation in the procedure for producing; And, when being installed on it on backboard of display,, just need to increase the distance of mixed light if will realize abundant mixed light because its thickness is bigger, the side of display is widened, be unfavorable for the narrow limit design of display.
The utility model content
The purpose of the utility model is to provide a kind of LED lamp bar, and it has simple relatively structure, and the operation that can simplify backlight design also provides the space for the narrow limit design of display.
The utility model is achieved in that a kind of LED lamp bar, comprises the bonding jumper that can dispel the heat, and lamination is provided with heat conductive insulating layer and line layer successively on said bonding jumper one surface, and the surface of said line layer is placed with a plurality of led chips continuously.
Optimal technical scheme as the utility model:
Said a plurality of led chip is along the length direction word order of said bonding jumper.
The surface of said line layer also is provided with connector, and said line layer is electrically connected through the drive circuit of said connector with LED lamp bar.
Said connector is mounted on the surface of said line layer.
Said led chip is mounted on the surface of said line layer.
Said line layer is formed according to preset line construction etching by Copper Foil.
The thickness of said heat conductive insulating layer is 0.08～0.16mm.
Another purpose of the utility model is to provide a kind of side-light type module backlight, comprises LGP and is positioned at the lamp bar of the incident side of said LGP, the LED lamp bar that said lamp strip adoption is above-mentioned.
Preferably,
Each incident side of said LGP or one group of relative incident side are provided with said LED lamp bar.
Another purpose of the utility model is to provide a kind of display; Comprise backboard, display floater and module backlight backlight is provided for said display floater; Said backboard has a housing; Be coated on the end of display floater and module backlight, said module backlight adopts above-mentioned side-light type module backlight, and the LED lamp bar of said side-light type module backlight is installed on the inner surface of said housing.
Bonding jumper in the utility model, heat conductive insulating layer, line layer and led chip fit together successively, form luminous and heat-radiating integrated lamp bar, with conventional lights bar savings in comparison one laminar substrate and thermal conductive insulation glue, simplified lamp bar structure.In the backlight design processing procedure of display; Can directly this lamp bar be installed on the backboard of display; Need as conventional method, not want earlier the lamp bar to be combined with the heat radiation aluminum strip; Be installed on again on the backboard, therefore simplified the operation of backlight design, also solved to a certain extent by the more fraction defective problem of higher that causes of operation; On the other hand since this LED lamp bar to compare conventional lights bar thickness littler, it during as the backlight of display, is helped the narrow limit design of display.
Description of drawings
Fig. 1 (a) is existing display backlight structural representation;
Fig. 1 (b) is the existing cross-sectional view that has the LED lamp bar of the aluminum strip that dispels the heat;
Fig. 2 is the cross-sectional view of the utility model embodiment LED lamp bar;
Fig. 3 is the structural representation of the utility model embodiment LGP;
Fig. 4 is the part section structural representation of the utility model embodiment display;
Fig. 5 is the mounting structure sketch map of the module backlight of the utility model embodiment display.
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.
In conjunction with accompanying drawing 2, LED lamp bar comprises the bonding jumper 21 that can dispel the heat, and lamination is provided with heat conductive insulating layer 22, line layer 23 and a plurality of led chip 24 successively on a surface of bonding jumper 21, and led chip 24 is electrically connected with line layer 23.Wherein, a plurality of led chips 24 can form an even brightness strip source spare, but be not limited to only arrange delegation along the length direction word order of bonding jumper 21, also can be two row or multirows.In this LED lamp bar, bonding jumper 21, heat conductive insulating layer 22 and line layer 23 fit together successively, are equivalent to the substrate of an integrative-structure, and 24 of led chips directly are mounted on this substrate, form one luminous, dispel the heat in the LED of one lamp bar.But traditional thermal louver bar is that the lamp bar that has substrate 111 and heat conductive insulating layer 112 is attached on the heat radiation aluminum strip 13 through thermal conductive insulation glue 12; By comparison; LED lamp bar in the present embodiment has been saved substrate 111 and thermal conductive insulation glue 12, has simplified lamp bar structure.
In the backlight design processing procedure of display; Can directly this LED lamp bar be installed on the backboard of display; Need as conventional method, to not fit, and then be installed on the backboard, therefore simplify the operation of backlight design through an one deck thermal conductive insulation glue and an aluminum strip; Reduce the manpower and materials cost, also improved the product yield simultaneously; On the other hand, whole LED lamp bar only has one deck heat conductive insulating layer 22, and insulating barrier is the key factor that influences lamp bar heat dispersion; Insulating barrier is thin more; Thermal resistance is more little, heat dispersion is good more, and this LED lamp bar has been saved one deck thermal conductive insulation glue, has reduced the thickness of insulating barrier; Therefore reduce thermal resistance, had better thermal diffusivity; And, line layer 23, insulating heat-conductive layer 22 and the integrative-structure of bonding jumper 21 for fitting tightly, radiating effect is far superior to the situation that aluminum strip is pasted in the back on the lamp bar; Again on the one hand; Because LED lamp bar has reduced thermal conductive insulation glue 12 and substrate 111 than conventional lights bar, its thickness reduces significantly, when it is installed on the display side as backlight; It is narrower that the frame of display can be done, and meets the development trend of the narrow limitization of display.
In the present embodiment, also be provided with connector 25 on the surface of line layer 23, line layer 23 is electrically connected through the drive circuit of this connector 25 with LED lamp bar.A LED lamp bar can be provided with two connectors 25, is arranged at the two ends of lamp bar respectively, as the input terminal of anodal and negative pole.
In the present embodiment, led chip 24 preferably is mounted on line layer 23 surfaces with connector 25.Further, led chip 24 can be attached at line layer 23 surfaces through surface mounting technology (SMT) with connector 25; Can also be attached at line layer 23 surfaces through chip on board encapsulation technology (COB).Present embodiment preferably adopts surface mounting technology, and its welding point defect rate is low, antivibration ability, anti-electromagnetism and radiation interference ability are strong, and helps the miniaturization of product.
In the present embodiment, the preferred aluminum or aluminum alloy of the material of bonding jumper 21, its light weight, easy-formation, cost is low and thermal conductivity good.This heat radiation aluminum strip or aluminum alloy bar specifically can pass through the aluminium extruded technological forming.
In the present embodiment, line layer 23 is preferably formed by Copper Foil.Copper Foil good conductivity, easy etching and cost are low.At first lay Copper Foil, can adopt liquid medicine Copper Foil to be carried out etching then, finally form line layer 23 according to the line map of design in advance on heat conductive insulating layer 22 surface.
The heat conductive insulating layer 22 of LED lamp bar is the very The key factor that influences lamp bar performance; Its thermal conductivity is to influence the LED lamp bar key factor in service life; Insulating properties is the key factor that influences Product Safety; Defective insulation then is broken down by high-voltage easily, causes led chip 24 short circuits, is prone to accidents.The material of formation heat conductive insulating layer 22 has a variety of, preferably adopts the high heat-conducting ceramic powder evenly to mix formation with the insulation macromolecular material.Can further select ceramic material and insulation macromolecular material preferably in the actual production, and optimize the proportioning of ceramic material and insulation macromolecular material, to obtain preferable thermal conductivity and insulating properties.
Further; The thickness of heat conductive insulating layer 22 is big more, and insulating properties is good more, but thermal resistance is big more; Therefore need thickness reasonable in design to satisfy the requirement of insulating properties and thermal conductivity; The thickness of the insulating heat-conductive layer 22 of present embodiment is preferably 0.08～0.16mm, and further is preferably 0.1～0.15mm, and this thickness can reduce thermal resistance as far as possible on the basis of satisfying the insulating properties requirement.
In conjunction with accompanying drawing 3, this LED lamp bar can be used for back light system or illuminator, is particularly useful for the back light system of display.Concrete, LED lamp bar 31 uses as the light source of side-light type module backlight, is arranged at the incident side of LGP 32, according to actual needs, can be arranged at an incident side of LGP 32, perhaps one group of relative incident side, perhaps each incident side.Be appreciated that the relative position relation of " incident side that LED lamp bar is arranged at LGP " expression LED lamp bar 31 and LGP 32, rather than LED lamp bar 31 is installed on the LGP 32.
Further, above-mentioned side-light type module backlight is suitable for use in the display, for example liquid crystal TV set, computer monitor etc.In conjunction with accompanying drawing 4,5, display generally includes a display floater 41 and a module 42 backlight, and module 42 backlight is positioned at the light incident side of display floater 41, and the light that the liquid crystal display of display floater 41 sends module 42 backlight is modulated to export various images.Display has a backboard 43, and mainly as the protecting sheathing and the use of fixing internal device of display, backboard 43 has a housing 431, is coated on the end of display floater 41 and module 42 backlight.Wherein, module 42 backlight adopts above-mentioned side-light type module backlight, and the LED lamp bar 421 in this module 42 backlight directly is installed on the inner surface of housing 431.During practical set, earlier LED lamp bar 421 is installed in the predeterminated position of housing 431, then at the light direction of lamp bar 421, LGP 422 is installed with display floater 41 relative positions through connectors such as screws.
In the above-mentioned installation process, LED lamp bar is fetched i.e. usefulness, is directly installed on the backboard, needn't as conventional process, earlier the lamp bar be attached on the aluminum strip through heat-conducting glue again, and the lamp bar that will have aluminum strip again is installed on the backboard, has simplified processing procedure.And the frame of backboard need have certain width usually, for mixed light is reserved certain space; The width of frame equals the thickness sum of light mixing distance and lamp bar at least, if the lamp bar is thicker, for abundant mixed light; Just need to increase border width, adopt LED lamp bar of the present invention as backlight, because its thickness is smaller; Therefore in limited space, can sufficient space be provided, be very beneficial for the narrow limit design of display for mixed light.
Though the utility model LED lamp bar relatively is applicable to the module backlight of display; But also can be used for lighting device; Can directly this lamp bar be installed in the lighting device through connector, also not need earlier it to be attached on the radiating piece to install again, simple and good heat dissipation effect are installed.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. a LED lamp bar is characterized in that, comprises the bonding jumper that can dispel the heat, and lamination is provided with heat conductive insulating layer and line layer successively on said bonding jumper one surface, and the surface of said line layer is placed with a plurality of led chips continuously.
2. LED lamp bar as claimed in claim 1 is characterized in that, said a plurality of led chips are along the length direction word order of said bonding jumper.
3. LED lamp bar as claimed in claim 1 is characterized in that the surface of said line layer also is provided with connector, and said line layer is electrically connected through the drive circuit of said connector with LED lamp bar.
4. LED lamp bar as claimed in claim 3 is characterized in that said connector is mounted on the surface of said line layer.
5. like each described LED lamp bar of claim 1 to 4, it is characterized in that said led chip is mounted on the surface of said line layer.
6. LED lamp bar as claimed in claim 1 is characterized in that, said line layer is formed according to preset line construction etching by Copper Foil.
7. LED lamp bar as claimed in claim 1 is characterized in that the thickness of said heat conductive insulating layer is 0.08～0.16mm.
8. a side-light type module backlight is characterized in that, comprises LGP and is positioned at the lamp bar of the incident side of said LGP, each described LED lamp bar of said lamp strip adoption claim 1 to 7.
9. side-light type as claimed in claim 8 module backlight is characterized in that, each incident side of said LGP or one group of relative incident side are provided with said LED lamp bar.
10. display; Comprise backboard, display floater and module backlight backlight is provided for said display floater; Said backboard has a housing, is coated on the end of display floater and module backlight, it is characterized in that; Said module backlight adopts claim 8 or 9 described side-light types module backlight, and the LED lamp bar of said side-light type module backlight is installed on the inner surface of said housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202856282U CN202182365U (en) | 2011-08-08 | 2011-08-08 | LED light strip, side light type backlight module and display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202856282U CN202182365U (en) | 2011-08-08 | 2011-08-08 | LED light strip, side light type backlight module and display |
Publications (1)
| Publication Number | Publication Date |
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| CN202182365U true CN202182365U (en) | 2012-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202856282U Expired - Fee Related CN202182365U (en) | 2011-08-08 | 2011-08-08 | LED light strip, side light type backlight module and display |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865472A (en) * | 2012-06-13 | 2013-01-09 | 东莞市天晖电子材料科技有限公司 | High-heat-conductivity flexible ultrathin LED (light-emitting diode) lamp |
| CN102997099A (en) * | 2012-11-26 | 2013-03-27 | 宁波龙宇光电科技有限公司 | LED (Light-Emitting Diode) light source and lamp thereof |
| WO2014107891A1 (en) * | 2013-01-09 | 2014-07-17 | 深圳市华星光电技术有限公司 | Backlight module, printed circuit board and manufacturing method therefor |
| CN105757537A (en) * | 2016-03-25 | 2016-07-13 | 京东方科技集团股份有限公司 | Backlight module and display device |
| WO2016127647A1 (en) * | 2015-02-15 | 2016-08-18 | 深圳Tcl新技术有限公司 | Semiconductor nano-transistor, light-emitting assembly and liquid crystal television |
| CN109257553A (en) * | 2018-09-10 | 2019-01-22 | 广东长虹电子有限公司 | A kind of tempered glass covers the backlight module of copper realization electrical connection |
| US10520664B2 (en) | 2016-03-25 | 2019-12-31 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| WO2020042416A1 (en) * | 2018-08-31 | 2020-03-05 | 李文星 | High voltage led panel lamp |
| CN112963747A (en) * | 2021-03-23 | 2021-06-15 | 深圳Tcl数字技术有限公司 | LED light bar manufacturing method and LED light bar |
-
2011
- 2011-08-08 CN CN2011202856282U patent/CN202182365U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865472A (en) * | 2012-06-13 | 2013-01-09 | 东莞市天晖电子材料科技有限公司 | High-heat-conductivity flexible ultrathin LED (light-emitting diode) lamp |
| CN102997099A (en) * | 2012-11-26 | 2013-03-27 | 宁波龙宇光电科技有限公司 | LED (Light-Emitting Diode) light source and lamp thereof |
| WO2014107891A1 (en) * | 2013-01-09 | 2014-07-17 | 深圳市华星光电技术有限公司 | Backlight module, printed circuit board and manufacturing method therefor |
| WO2016127647A1 (en) * | 2015-02-15 | 2016-08-18 | 深圳Tcl新技术有限公司 | Semiconductor nano-transistor, light-emitting assembly and liquid crystal television |
| CN105757537A (en) * | 2016-03-25 | 2016-07-13 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US10234124B2 (en) | 2016-03-25 | 2019-03-19 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| US10520664B2 (en) | 2016-03-25 | 2019-12-31 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| WO2020042416A1 (en) * | 2018-08-31 | 2020-03-05 | 李文星 | High voltage led panel lamp |
| CN109257553A (en) * | 2018-09-10 | 2019-01-22 | 广东长虹电子有限公司 | A kind of tempered glass covers the backlight module of copper realization electrical connection |
| CN112963747A (en) * | 2021-03-23 | 2021-06-15 | 深圳Tcl数字技术有限公司 | LED light bar manufacturing method and LED light bar |
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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: 20120404 Termination date: 20150808 |
|
| EXPY | Termination of patent right or utility model |