CN207833187U - A kind of backlight module and liquid crystal display - Google Patents
A kind of backlight module and liquid crystal display Download PDFInfo
- Publication number
- CN207833187U CN207833187U CN201820293896.0U CN201820293896U CN207833187U CN 207833187 U CN207833187 U CN 207833187U CN 201820293896 U CN201820293896 U CN 201820293896U CN 207833187 U CN207833187 U CN 207833187U
- Authority
- CN
- China
- Prior art keywords
- backboard
- backlight module
- optical diaphragm
- reflection layer
- diffusing reflection
- 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.)
- Expired - Fee Related
Links
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model is related to technical field of liquid crystal display more particularly to a kind of backlight modules and liquid crystal display.The backlight module includes backboard, optical diaphragm and center, and the backboard and optical diaphragm are fixed in the center, and the inner surface of the backboard is provided with diffusing reflection layer, and the optical diaphragm, which is placed in the backboard, has the side of the diffusing reflection layer.Backlight module provided by the utility model in the smooth inner surface of backboard by being arranged diffusing reflection layer, to substitute the structure that reflector plate is arranged on backboard in the prior art, it is few with parts, the advantages that assembling procedure simplifies, effectively save the manufacturing cost of backlight module, improve the packaging efficiency of module producing line, it can also solve the problems, such as and optimize the relevant integrity problem and visual effect because using reflector plate to bring at present, the stability and reliability that ensure that backlight module, to improve the yield of backlight module.
Description
Technical field
The utility model is related to technical field of liquid crystal display more particularly to a kind of backlight modules and liquid crystal display.
Background technology
Backlight module common in the art has two kinds of straight-down negative and side-light type.
Down straight aphototropism mode set need to fix the reflector plate 2 ' of a 0.188mm-0.250mm thickness on backboard 1 ', this is anti-
Penetrating piece 2 ' utilizes LED light source 3 ' by reflection from lens or the high angle scattered light reflected, to promote the energy of positive light extraction,
Light is uniformly mixed inside the light mixing chamber formed between LED light source 3 ' and diffuser plate, then is beaten emergent ray by diffuser plate
It dissipates and part is covered, whole brightness and uniformity are promoted by optical diaphragm 4 ' later, using center 5 ' by optical diaphragm
4 ', diffuser plate and backboard 1 ' are fixedly assembled, then fix and assemble with panel 6 ' and front frame 7 ', concrete structure such as Fig. 1 institutes
Show.
Sidelight type backlight module need to fix the reflector plate 2 ' of a 0.3mm-0.6mm thickness on backboard 1 ', pass through reflection
Piece 2 ' reflects the light for 3 ' lower surface of the light guide plate outgoing being positioned above, to promote the light efficiency and reduction light damage of facing light extraction
Consumption, 3 ' upper surface of light guide plate promote whole brightness and uniformity by optical diaphragm 4 ', and 4 ' lower section of optical diaphragm is also set up
Have heat sink strip 8 ', optical diaphragm 4 ', light guide plate 3 ' and backboard 1 ' be fixedly assembled using center 5 ', then with panel 6 ' and
The fixed assembling of front frame 7 ', concrete structure are as shown in Figure 2.
The backlight module of both the above form is respectively present problems with：
For down straight aphototropism mode set, existing structure needs to improve light extraction efficiency using reflector plate, and that brings therewith asks
Topic includes：Increase reflector plate cost, the assembling of reflector plate is relatively complicated, and easily occurs because of reflector plate stiffening property or fix bad cause
The problem of, also it is exactly that the bright dark visual effect problem in corner is relatively difficult to resolve certainly.
For sidelight type backlight module, existing structure needs to improve light extraction efficiency using reflector plate, and that brings therewith asks
Topic includes：Increase reflector plate cost, and easily appearance reflector plate caused by backboard flatness deficiency and guide-lighting sheet separation is inconsistent
The shadow of appearance and white phenomenon is pushed up, the problem of absorption mutually between reflector plate and light guide plate, the scratch that occurs after reliability test
The problems such as being deformed caused by problem and high temperature back reflection piece expansion unevenness or low-temperature shrink.
Utility model content
The purpose of this utility model is to provide a kind of backlight module and liquid crystal displays, and parts are few, and assembly is simple,
Cost is relatively low, and stability and reliability are higher.
For this purpose, the utility model uses following technical scheme：
A kind of backlight module, including backboard, optical diaphragm and center, the backboard and optical diaphragm are fixed on the center
Interior, the inner surface of the backboard is provided with diffusing reflection layer, and the optical diaphragm, which is placed in the backboard, has the diffusing reflection layer
Side.
As the optimal technical scheme of backlight module, the ranging from 60%-99% of the reflectivity of the diffusing reflection layer.
As the optimal technical scheme of backlight module, the diffusing reflection layer is paint or nano paint.
As the optimal technical scheme of backlight module, the diffusing reflection layer is set to described through spraying baking or silk screen printing process
On the inner surface of backboard.
As the optimal technical scheme of backlight module, the backboard is tempered glass backboard or metal backing.
As the optimal technical scheme of backlight module, the backlight module is down straight aphototropism mode set, further includes light source
And diffuser plate, the light source are fixed on the backboard, and the diffuser plate, the optical film are provided with above the light source
Piece is arranged on the diffuser plate, and the optical diaphragm, diffuser plate and backboard are fixed on and are assembled together by the center.
As the optimal technical scheme of backlight module, the light source includes the more lamp bars being spaced apart.
As the optimal technical scheme of backlight module, the backlight module is sidelight type backlight module, further includes heat dissipation
Item and light guide plate, the heat sink strip and the light guide plate are separately positioned on the both sides of the backboard, and the light guide plate is located at described
Between backboard and the optical diaphragm, the heat sink strip is fixed at the other side of the backboard, and the center is by the light
Diaphragm, light guide plate and backboard is learned to be fixed on and be assembled together.
A kind of liquid crystal display, including the backlight module described in any of the above item.
Compared with prior art, the advantages of the utility model and advantageous effect is：
Backlight module provided by the utility model is existing to substitute by the way that diffusing reflection layer is arranged in the smooth inner surface of backboard
The structure of reflector plate is set in technology on backboard, has many advantages, such as that parts are few, assembling procedure simplifies, and effectively saves backlight
The manufacturing cost of module improves the packaging efficiency of module producing line, can also solve and optimize at present because using reflector plate to bring
Relevant integrity problem and visual effect problem, the stability and reliability of backlight module are ensure that, to improve backlight mould
The yield of group.
Description of the drawings
Fig. 1 is the exploded perspective view of existing down straight aphototropism mode set；
Fig. 2 is the exploded perspective view of existing sidelight type backlight module；
Fig. 3 is the exploded perspective view of down straight aphototropism mode set provided by the utility model；
Fig. 4 is the exploded perspective view of sidelight type backlight module provided by the utility model；
Fig. 5 is the structural schematic diagram of sidelight type backlight module collocation complete machine provided by the utility model；
Fig. 6 is the exploded perspective view of sidelight type backlight module collocation complete machine provided by the utility model.
In figure：
1 '-backboard；2 '-reflector plates；3 '-LED light sources；4 '-optical diaphragms；5 '-centers；6 '-panels；7 '-front frames；8’-
Heat sink strip；
1- backboards；2- optical diaphragms；3- centers；4- light sources；5- heat sink strips；6- light guide plates；7- panels；8- front frames；9- is carried on the back
Optical mode group；10- power supplys；11- sound equipments；12- mainboards；13- mainboard brackets；14- rear shells；15- pedestals.
Specific implementation mode
Below in conjunction with the accompanying drawings the technical solution of the utility model is further illustrated with embodiment.It is understood that this
The described specific embodiment in place is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
Illustrate, illustrate only for ease of description, in attached drawing with the relevant part of the utility model and it is not all.
Embodiment one
The present embodiment provides a kind of down straight aphototropism mode set, structure is as shown in figure 3, down straight aphototropism mode set includes backboard
1, light source 4, diffuser plate, optical diaphragm 2, center 3, panel 7 and front frame 8, center 3 consolidate optical diaphragm 2, diffuser plate and backboard 1
It is scheduled on rear and panel 7 together and front frame 8 is fixed and assembled, form complete backlight module 9.Wherein, light source 4 is fixed at backboard
On 1, the top of light source 4 is provided with diffuser plate, and optical diaphragm 2 is arranged on diffuser plate, and 1 surfacing of backboard is uniform, backboard 1 it is interior
Surface, i.e., the one side towards light source 4 are provided with diffusing reflection layer.
Further, diffusing reflection layer is paint of the reflectivity in visible wavelength range (380nm-780nm) or receives
Rice coating, material composition can be BaSO4, CaCO3, TiO2Equal inorganic particulates, this material can adhere to most metals, modeling
On material and glass surface.According to the difference containing main component, the reflectivity of the material is up to 60%-99%, and the material is also
With higher optical stability and Lambertian characteristics.Preferably, diffusing reflection layer is preferably white, to ensure reflectivity.
Further, diffusing reflection layer is set to through spraying baking or silk screen printing process on the inner surface of backboard 1, can be according to tool
Body situation carries out process choice.It should be noted that the diffusing reflection layer of this high reflectance is carrying out spraying roasting or silk-screen processing work
Require finished surface uniformly when skill and smooth, problem that cannot be jagged or uneven.
Backboard 1 in the present embodiment is tempered glass backboard or metal backing, and light source 4 includes more at vertical direction interval
The lamp bar of distribution.Preferably, lamp bar is LED light bar, and however, it is not limited to this, does not do excessive limitation herein.
When down straight aphototropism mode set provided in this embodiment is big mixed light down straight aphototropism mode set, 1 inner surface of backboard
Bottom surface preferably promotes overall brightness using reflectivity for the white paint or nano material of 95%-98%；For 1 inner surface of backboard
The partially dark problem in side part corner, the white paint or nano material that the use of reflectivity are preferably 99% solve corner and secretly ask excessively
Topic；Pointedly preferred reflectance silk-screen processing can be carried out for the partially bright problem of lateral edge for the paint of 60%-80%.
When down straight aphototropism mode set provided in this embodiment is small mixed light down straight aphototropism mode set, 1 inner surface of backboard
The white paint or nano material that bottom surface is preferably 95%-98% using the reflectivity of the diffusion particle with diameter about 5um-40um
To solve the problems, such as lamp shadow and promote overall brightness；For the problem that the side part corner of 1 inner surface of backboard is partially dark, preferably
The white paint or nano material for the use of reflectivity being 99% solve the problems, such as that corner is excessively dark；It can be directed to for the partially bright problem of lateral edge
Property preferred reflectance be 60%-80% paint carry out silk-screen processing.
By the way that diffusing reflection layer is arranged in the smooth inner surface of backboard 1, reflection is set on backboard 1 in the prior art to substitute
The structure of piece has many advantages, such as that parts are few, and assembling procedure simplifies, and effectively saves the manufacturing cost of backlight module, improves
The packaging efficiency of module producing line can also solve and optimize because of the relevant integrity problem that uses reflector plate to bring and to regard at present
Effect problem ensure that the stability and reliability of backlight module, to improve the yield of backlight module.
Embodiment two
The present embodiment provides a kind of sidelight type backlight module, structure is as shown in figure 4, the present embodiment is basic with embodiment one
It is identical, for simplicity, the difference of the present embodiment and embodiment one is only described.
Sidelight type backlight module provided in this embodiment includes backboard 1, heat sink strip 5, light guide plate 6, optical diaphragm 2, center
3, panel 7 and front frame 8, wherein heat sink strip 5 and light guide plate 6 are separately positioned on the both sides of backboard 1, light guide plate 6 be located at backboard 1 with
Between optical diaphragm 2, heat sink strip 5 is fixed at the other side of backboard 1, and center 3 is by optical diaphragm 2, light guide plate 6 and backboard 1
It fixes and assembles with panel 7 and front frame 8 after being fixed together, form complete backlight module 9.The inner surface of backboard 1, i.e., towards leading
The one side of tabula rasa 6 is provided with diffusing reflection layer.
Sidelight type backlight module provided in this embodiment, the more smooth tempered glass backboard of use, 1 inner surface of backboard make
With reflectivity overall brightness is promoted for 99% white paint or nano material；It, can needle for the shinny problem of visual effect of regional area
Silk-screen processing is carried out to the white paint or nano material that property preferred reflectance is 60%-80%.
A kind of liquid crystal display includes the backlight module 9 of any of the above embodiment offer, and the structure of backlight module 9 is same as above,
Details are not described herein.
Fig. 5 and Fig. 6 shows the structural schematic diagram and exploded perspective view of sidelight type backlight module collocation complete machine.Liquid crystal display
The structure of device includes backlight module 9, power supply 10, sound equipment 11, mainboard 12, mainboard bracket 13, rear shell 14 and pedestal 15, due to having
Above-mentioned more smooth backlight module 9, then the mainboard 12 for strip of arranging in pairs or groups and constant current plate are mounted on pedestal 15, external power supply 10
It is powered, the structure of liquid crystal display ultrathin may be implemented.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (9)
1. a kind of backlight module, including backboard (1), optical diaphragm (2) and center (3), the backboard (1) and optical diaphragm (2)
It is fixed in the center (3), which is characterized in that the inner surface of the backboard (1) is provided with diffusing reflection layer, the optical diaphragm
(2) being placed in the backboard (1) has the side of the diffusing reflection layer.
2. backlight module according to claim 1, which is characterized in that the reflectivity of the diffusing reflection layer is ranging from
60%-99%.
3. backlight module according to claim 1, which is characterized in that the diffusing reflection layer is paint or nano paint.
4. backlight module according to claim 1, which is characterized in that the diffusing reflection layer is through spraying baking or silk screen printing process
It is set on the inner surface of the backboard (1).
5. backlight module according to claim 1, which is characterized in that the backboard (1) is tempered glass backboard or metal
Backboard.
6. according to claim 1-5 any one of them backlight modules, which is characterized in that the backlight module is direct-type backlight
Module further includes light source (4) and diffuser plate, and the light source (4) is fixed on the backboard (1), on the light source (4)
Side is provided with the diffuser plate, and the optical diaphragm (2) is arranged on the diffuser plate, and the center (3) is by the optical film
Piece (2), diffuser plate and backboard (1) are fixedly assembled.
7. backlight module according to claim 6, which is characterized in that the light source (4) includes the more lamps being spaced apart
Item.
8. according to claim 1-5 any one of them backlight modules, which is characterized in that the backlight module is side-light backlight
Module, further includes heat sink strip (5) and light guide plate (6), and the heat sink strip (5) and the light guide plate (6) are separately positioned on described
The both sides of backboard (1), the light guide plate (6) is between the backboard (1) and the optical diaphragm (2), the heat sink strip (5)
It is fixed at the other side of the backboard (1), the center (3) is by the optical diaphragm (2), light guide plate (6) and backboard (1)
It is fixedly assembled.
9. a kind of liquid crystal display, which is characterized in that including claim 1-8 any one of them backlight modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820293896.0U CN207833187U (en) | 2018-03-02 | 2018-03-02 | A kind of backlight module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820293896.0U CN207833187U (en) | 2018-03-02 | 2018-03-02 | A kind of backlight module and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207833187U true CN207833187U (en) | 2018-09-07 |
Family
ID=63398553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820293896.0U Expired - Fee Related CN207833187U (en) | 2018-03-02 | 2018-03-02 | A kind of backlight module and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207833187U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109976040A (en) * | 2019-04-11 | 2019-07-05 | 深圳康佳电子科技有限公司 | A kind of reflecting glass backboard, backlight module, display device and intelligent terminal |
| CN110568660A (en) * | 2019-08-09 | 2019-12-13 | 惠州市华星光电技术有限公司 | Display device and method for manufacturing the same |
| WO2024020865A1 (en) * | 2022-07-26 | 2024-02-01 | 苏州长风航空电子有限公司 | Backlight dislplay method and apparatus thereof |
-
2018
- 2018-03-02 CN CN201820293896.0U patent/CN207833187U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109976040A (en) * | 2019-04-11 | 2019-07-05 | 深圳康佳电子科技有限公司 | A kind of reflecting glass backboard, backlight module, display device and intelligent terminal |
| CN110568660A (en) * | 2019-08-09 | 2019-12-13 | 惠州市华星光电技术有限公司 | Display device and method for manufacturing the same |
| WO2021027225A1 (en) * | 2019-08-09 | 2021-02-18 | 惠州市华星光电技术有限公司 | Display device and preparation method therefor |
| WO2024020865A1 (en) * | 2022-07-26 | 2024-02-01 | 苏州长风航空电子有限公司 | Backlight dislplay method and apparatus thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103727467B (en) | Backlight module and the liquid crystal indicator with this backlight module | |
| CN100437276C (en) | Straight down type back light component and liquid crystal display device | |
| KR102046766B1 (en) | Liquid crystal display device | |
| US8520150B2 (en) | Lighting device, display device and television receiver | |
| KR101095999B1 (en) | Backlight unit and liquid crystal display having the same | |
| CN109116621A (en) | Display module and display device | |
| CN207833187U (en) | A kind of backlight module and liquid crystal display | |
| CN104964213B (en) | Backlight module and liquid crystal display | |
| CN102661535B (en) | Direct type backlight module | |
| US20160363718A1 (en) | Optical film assembly mounting structure | |
| WO2016187899A1 (en) | Direct led backlight module and liquid crystal display device | |
| US20120127395A1 (en) | Lighting device, display device and television receiver | |
| CN101566754B (en) | Liquid crystal display | |
| CN106526968A (en) | Liquid-crystal display module and liquid-crystal display device | |
| CN109507822A (en) | Backlight module and liquid crystal display device | |
| CN208818985U (en) | A kind of novel straight down type backlight | |
| CN206282061U (en) | Backlight display module structure and display | |
| CN206440925U (en) | Display device | |
| CN205028004U (en) | Back light module and display device | |
| CN109358451A (en) | A kind of backlight module and its display device | |
| CN108646452A (en) | A kind of liquid crystal display device | |
| CN211293521U (en) | Lens supporting structure, direct type backlight module and display device thereof | |
| CN110018594B (en) | Backlight module and display module | |
| CN202548472U (en) | Direct type liquid crystal display module and backlight module thereof | |
| CN208314398U (en) | A kind of liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20210302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |