CN104913243A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN104913243A CN104913243A CN201510284584.4A CN201510284584A CN104913243A CN 104913243 A CN104913243 A CN 104913243A CN 201510284584 A CN201510284584 A CN 201510284584A CN 104913243 A CN104913243 A CN 104913243A
- Authority
- CN
- China
- Prior art keywords
- layer
- backlight module
- adhesive
- guide plate
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012790 adhesive layer Substances 0.000 claims abstract description 27
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims description 34
- 239000003292 glue Substances 0.000 claims description 13
- 239000002390 adhesive tape Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 4
- 239000010408 film Substances 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract 4
- 230000001070 adhesive effect Effects 0.000 abstract 4
- 239000012788 optical film Substances 0.000 abstract 3
- 239000011521 glass Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 1
- -1 and such as Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to the technical field of liquid crystal display and particularly provides a backlight module. The backlight module comprises a light guide plate, a light source component, an adhesive framework, an optical film, a panel component and a composite heat dissipation part, wherein the light guide plate, the light source component and the adhesive framework are arranged from inside to outside; the optical film is arranged on the upper surface of the light guide plate and is connected to the adhesive framework through an adhesive layer; the panel component is arranged above the optical film and corresponds to the adhesive layer; the composite heat dissipation part is arranged between the panel component and the adhesive layer, extends to the bottom of the light guide plate along the outer side of the adhesive framework and is connected to the light source component. The composite heat dissipation part is used for combining the reflection material with the heat dissipation material; the function of a reflection plate can be achieved; meanwhile, the heat dissipation function can also be achieved; the function of the protection film in the prior art is replaced; the structure of the backlight module is simplified; the thin design of the backlight module is facilitated.
Description
Technical field
The present invention relates to lcd technology, refer in particular to a kind of modified node method of backlight module.
Background technology
At present, liquid crystal indicator has been widely used in various electronic product as the display unit of electronic equipment, and the frame of these electronic equipments is more and more narrow, and brightness requirement is also more and more higher, also will meet the requirement of power saving simultaneously; Backlight module is then a vitals in liquid crystal indicator, and the light inlet efficiency of its lamp bar certainly will require more and more higher.But, the not good display quality often affecting liquid crystal display of existing backlight module radiating effect.
As shown in Figure 1, it comprises light guide plate 1, light source assembly 2, glue frame 3 and the backboard 4 installed from the inside to the outside to existing backlight module, and is located at the blooming piece 5 of described light guide plate 1 upper surface, and it is connected with described glue frame 3 by an adhesive-layer 61; Be installed in the panel assembly 7 above described blooming piece 5, it connects by a diaphragm 8 is corresponding with described adhesive-layer 61; One reflector plate 9 is installed between described light guide plate 1 and backboard 4.Wherein, described light source assembly 2 is fixed between described glue frame 3, light guide plate 1 by adhesive-layer 62.Those skilled in the art know, and the adhesive-layer 60 for fixing described light source assembly 2, blooming piece 5 is usual double faced adhesive tape or shading double faced adhesive tape, and the selection of its thickness and material is all common practise of those skilled in the art.
Wherein, described panel assembly 7 is provided with lower polaroid 71, lower-glass sheet 72, upper glass plate 73, upper polaroid 74 from bottom to up, and described lower-glass sheet 72 end is also provided with flexible circuit board 75 and IC chip 76 and other electronic component (not shown)s.
Due to the very thin thickness of lower-glass sheet itself, on the one hand, above lower-glass sheet, below is furnished with electronic component, light source assembly respectively, along with the lifting of backlight module brightness and the raising of operating efficiency, panel assembly 7, light source assembly 2 all can produce a large amount of heat, if can not lead away in time, by the efficiency of the brightness and electronic component that seriously reduce module; On the other hand; one end of lower-glass sheet corresponds to adhesive-layer; easily adhered to by adhesive-layer in assembly rocks; cause distortion, bending even damaged; so just need to set up a diaphragm between lower-glass sheet and adhesive-layer; for the protection of lower-glass sheet, this can increase mounting process step and cost undoubtedly.
Summary of the invention
Exemplary embodiment of the present invention is to provide a kind of backlight module, to overcome the not good problem of existing backlight module heat conduction.
The invention provides a kind of backlight module, comprising: the light guide plate installed from the inside to the outside, light source assembly and glue frame; And
Be located at the blooming piece of described light guide plate upper surface, it is connected with described glue frame by an adhesive-layer;
Be installed in the panel assembly above described blooming piece, it is corresponding with described adhesive-layer;
Also comprise:
Be located at the composite radiating part between described panel assembly and described adhesive-layer, it extends to bottom described light guide plate outside described glue frame, and is connected with described light source assembly.
Further, the described composite radiating part heat dissipating layer that at least comprises a reflecting layer and be located at outside described reflecting layer.
Further, described emission layer and described heat dissipating layer one-body molded.
Further, described reflecting layer is bonding with described heat dissipating layer.
Further, the material of described heat dissipating layer is Heat Conduction Material.
Further, the material of heat dissipating layer is copper, aluminium or graphite.
Further, described adhesive-layer is shading double faced adhesive tape.
Further, the backboard be located at outside described composite radiating part is also comprised.
Beneficial effect:
Reflecting material and heat sink material are combined into a composite radiating part by the present invention, so both can play the function of reflector plate, can fill effect that part plays heat radiation simultaneously; And composite radiating part also instead of the effect of existing diaphragm for the protection of panel assembly, simplifies structure further, be conducive to the slimming design of backlight module.
Accompanying drawing explanation
Fig. 1 is the back light module unit structure schematic diagram of prior art;
Fig. 2 is the structural representation of the backlight module of the embodiment of the present invention.
Detailed description of the invention
Now will in detail with reference to embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein, identical label refers to identical parts all the time.Below by referring to accompanying drawing, described embodiment will be described, to explain the present invention.
The backlight module that this example provides, as shown in Figure 2, it comprises: the light guide plate 10 installed from the inside to the outside, light source assembly 20 and glue frame 30; And blooming piece 40, adhesive-layer 50, panel assembly 60 and composite radiating part 80.
Particularly, described blooming piece 40 is located at described light guide plate 10 upper surface, and it is connected with described light source assembly 20, glue frame 30 successively by described adhesive-layer 51.Wherein, described light source assembly 20 is fixed between described glue frame 30, light guide plate 10 by adhesive-layer 52.Those skilled in the art know, and the adhesive-layer 50 for fixing described light source assembly 20, blooming piece 40 is usual double faced adhesive tape or shading double faced adhesive tape, and the selection of its thickness and material is all common practise of those skilled in the art.
Described panel assembly 60 is installed in above described blooming piece 40, and it is corresponding with described adhesive-layer 50.Wherein, described panel assembly 60 is provided with lower polaroid 61, lower-glass sheet 62, upper glass plate 63, upper polaroid 64 from bottom to up, and described lower-glass sheet 62 end is also provided with flexible circuit board 65 and IC chip 66 and other electronic component (not shown)s.
Described composite radiating part 80 to be located between the lower-glass sheet 62 of described panel assembly 60 and described adhesive-layer 51 and to be extended to bottom described light guide plate 20 outside described glue frame 30, is connected with described light source assembly 20.
Described composite radiating part is the effect having taken into account reflection light plate emergent light and led away light source assembly 20 heat in time.So the preferred structure of composite radiating part 80 of the present embodiment is: the heat dissipating layer 82 comprising a reflecting layer 81 and be located at outside described reflecting layer 81.Further, described reflecting layer 81 is bonding preferably by double faced adhesive tape (not shown) with described heat dissipating layer 82.Light guide plate 10 bottom outlet light can reflect by described reflecting layer 81, plays the effect of former reflector plate 9 (shown in composition graphs 1); And heat dissipating layer 82 is contacted with light source assembly 20 by reflecting layer 81, be connected on the other hand with the lower-glass sheet 62 of panel assembly 60, can be derived by the heat that two aspects produce in time, radiating efficiency will improve greatly simultaneously.
Wherein, the material of described heat dissipating layer 82 is selected from Heat Conduction Material, and such as, Copper Foil, aluminium foil or graphite flake, thickness is generally 0.3 ~ 0.5mm.And reflecting layer 81 material can be such as PETG (PET), or other have the material of reflection function; Thickness, generally at below 0.1mm, is preferably 0.06 ~ 0.08mm.
What deserves to be explained is; in the actual installation structure of prior art; after panel assembly 60 and blooming piece 40 are installed; between lower-glass sheet 62 and adhesive-layer 51, there is space; produce deformation after easily making the lower-glass sheet 62 in panel assembly 60 and the adhesive-layer 51 of the present embodiment adhere to, bend even breakage; composite radiating part 80 in the present embodiment stretches between described panel assembly 60 and adhesive-layer; replace existing diaphragm function; cost of manufacture can not only be saved; also simplify mounting process step, meet the requirement that current back light module group narrows.
Further, in other embodiments, described backlight module can also comprise the backboard (not shown) be located at outside described composite radiating part, can meet the requirements at the higher level to back light module unit structure intensity.
Further, in other embodiments, heat dissipating layer and reflecting layer also can obtain integrated composite radiating part by other preparation technologies.Such as, heat dissipating layer can form heat dissipation metal material by the mode of spraying, plated film on described reflecting layer; Similarly, reflecting layer also can be sprayed on the heat dissipating layer made.Wherein said spraying, the mode of plated film are all technological means that those skilled in the art are usual.
Although show and described exemplary embodiments more of the present invention, but those skilled in the art should understand that, when not departing from by the principle of the present invention of claim and its scope of equivalents thereof and spirit, can modify to these embodiments.
Claims (8)
1. a backlight module, comprising: the light guide plate installed from the inside to the outside, light source assembly and glue frame; And
Be located at the blooming piece of described light guide plate upper surface, it is connected with described glue frame by an adhesive-layer;
Be installed in the panel assembly above described blooming piece, it is corresponding with described adhesive-layer; It is characterized in that, also comprise:
Be located at the composite radiating part between described panel assembly and described adhesive-layer, it extends to bottom described light guide plate outside described glue frame, and is connected with described light source assembly.
2. backlight module according to claim 1, is characterized in that, the heat dissipating layer that described composite radiating part at least comprises a reflecting layer and is located at outside described reflecting layer.
3. backlight module according to claim 2, is characterized in that, described emission layer and described heat dissipating layer one-body molded.
4. backlight module according to claim 2, is characterized in that, described reflecting layer is bonding with described heat dissipating layer.
5. the backlight module according to Claims 2 or 3 or 4, is characterized in that, the material of described heat dissipating layer is Heat Conduction Material.
6. backlight module according to claim 5, is characterized in that, the material of heat dissipating layer is copper, aluminium or graphite.
7. backlight module according to claim 1, is characterized in that, described adhesive-layer is shading double faced adhesive tape.
8. backlight module according to claim 1, is characterized in that, also comprises the backboard be located at outside described composite radiating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284584.4A CN104913243A (en) | 2015-05-27 | 2015-05-27 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284584.4A CN104913243A (en) | 2015-05-27 | 2015-05-27 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104913243A true CN104913243A (en) | 2015-09-16 |
Family
ID=54082535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510284584.4A Pending CN104913243A (en) | 2015-05-27 | 2015-05-27 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104913243A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405913A (en) * | 2016-12-06 | 2017-02-15 | 武汉华星光电技术有限公司 | Liquid crystal display device |
| CN106802448A (en) * | 2017-03-17 | 2017-06-06 | 武汉华星光电技术有限公司 | A kind of backlight module and liquid crystal display device |
| CN106990611A (en) * | 2017-03-17 | 2017-07-28 | 武汉华星光电技术有限公司 | A kind of backlight module and liquid crystal display device |
| CN107065303A (en) * | 2017-05-05 | 2017-08-18 | 武汉华星光电技术有限公司 | Mouth word glue and backlight assembly |
| CN107153302A (en) * | 2017-06-27 | 2017-09-12 | 上海传英信息技术有限公司 | The preparation method of reflector plate, backlight module and reflector plate |
| CN107728362A (en) * | 2017-10-24 | 2018-02-23 | 厦门天马微电子有限公司 | A kind of liquid crystal display die set |
| CN107979959A (en) * | 2017-12-20 | 2018-05-01 | 苏州佳值电子工业有限公司 | A kind of thermal diffusivity reflector plate |
| CN108196395A (en) * | 2017-12-28 | 2018-06-22 | 惠州市华星光电技术有限公司 | Backlight module and display device |
| US10495925B2 (en) | 2017-12-28 | 2019-12-03 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Backlight module and display device |
| CN110568665A (en) * | 2018-12-05 | 2019-12-13 | 友达光电股份有限公司 | display device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405913A (en) * | 2016-12-06 | 2017-02-15 | 武汉华星光电技术有限公司 | Liquid crystal display device |
| CN106802448B (en) * | 2017-03-17 | 2019-06-25 | 武汉华星光电技术有限公司 | A kind of backlight module and liquid crystal display device |
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| US10684409B2 (en) | 2017-03-17 | 2020-06-16 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Backlight module and liquid crystal display device |
| CN107065303A (en) * | 2017-05-05 | 2017-08-18 | 武汉华星光电技术有限公司 | Mouth word glue and backlight assembly |
| CN107153302A (en) * | 2017-06-27 | 2017-09-12 | 上海传英信息技术有限公司 | The preparation method of reflector plate, backlight module and reflector plate |
| CN107728362A (en) * | 2017-10-24 | 2018-02-23 | 厦门天马微电子有限公司 | A kind of liquid crystal display die set |
| CN107979959A (en) * | 2017-12-20 | 2018-05-01 | 苏州佳值电子工业有限公司 | A kind of thermal diffusivity reflector plate |
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| CN108196395A (en) * | 2017-12-28 | 2018-06-22 | 惠州市华星光电技术有限公司 | Backlight module and display device |
| CN110568665A (en) * | 2018-12-05 | 2019-12-13 | 友达光电股份有限公司 | display device |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150916 |