CN208027053U - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
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- CN208027053U CN208027053U CN201820590554.5U CN201820590554U CN208027053U CN 208027053 U CN208027053 U CN 208027053U CN 201820590554 U CN201820590554 U CN 201820590554U CN 208027053 U CN208027053 U CN 208027053U
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- side plate
- backlight module
- plate
- light guide
- center
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Abstract
The utility model discloses a kind of backlight module and display devices, including bottom frame and center, the bottom frame includes bottom plate and is folded upward at the first side plate formed by bottom plate periphery, the center includes the second side plate and the cyclic annular platform formed that bent inwards by the second side plate, the madial wall snapping of the lateral wall of first side plate and second side plate is so that center coats bottom frame, the optical film that the bottom plate is equipped with light guide plate and is located on light guide plate, the madial wall of first side plate washes off to form a support portion, and the upper surface of the support portion is not higher than the upper surface of the first side plate.The bearing area for increasing the first side plate upper surface by support portion enhances backlight effect and improves the stability of backlight module to prevent cyclic annular platform to be depressed into the optical film to avoid optical film generation fold or the possibility of deformation.
Description
Technical field
The utility model is related to technical field of liquid crystal display, relate more specifically to a kind of backlight module and display device.
Background technology
Currently, liquid crystal display device has been widely used in various electronic products as the display unit of electronic equipment
In, and backlight module plays important work as an important component in liquid crystal display device to the use of liquid crystal display device
With directly affecting the usage experience of user.But middle large scale（5 cun or more）Backlight module, glue frame deflection and breathing rate are big,
Difficult forming, especially 12 cun or more, thus backlight module in the prior art some use middle frame structure, optical film setting to exist
Center is in the following, center deflection controls well, and breathing rate is much smaller compared to glue frame, more stable.But center is above optical film
Annularly, thin and flexible, cyclic annular position is easy to be depressed into optical film, to cause optical film fold or deformation, influences backlight effect,
Reduce the stability of backlight module.Against the above deficiency, in the prior art it is also proposed that some improvement projects prevent press polish under center
Film is learned, such as by installing several supports on light guide plate or center, although can effectively prevent center pushing, this structure peace
Relative complex or increase material cost when dress；Also have and prevented by the way that the side plate of lower frame bends inwards to form flanging and be used as supporting table
Only center pushes, but flanging and side plate are technological formings at twice（Side is first washed off, then rushes side plate）, so showing there are difference in height
As, and then the thickness of backlight module is influenced, such as to make flanging and the high plane of side plate, difficulty is very big.
Utility model content
In order to solve the deficiencies in the prior art, the utility model provides a kind of backlight module and display device, institute
The bearing area that backlight module increases the first side plate upper surface by support portion is stated, to prevent cyclic annular platform to be depressed into the optical film
The possibility of fold or deformation occurs to avoid optical film, enhance backlight effect and improves the stability of backlight module.
The utility model institute technique effect to be achieved is realized by following scheme：A kind of backlight module, including bottom frame and
Center, the bottom frame include bottom plate and are folded upward at the first side plate formed by bottom plate periphery, and the center includes the second side plate
With the cyclic annular platform formed that bent inwards by the second side plate, the madial wall button of the lateral wall of first side plate and second side plate
It connects so that center coats bottom frame, the bottom plate is equipped with light guide plate and the optical film that is located on light guide plate, first side plate
Madial wall washes off to form a support portion, and the upper surface of the support portion is not higher than the upper surface of the first side plate.
Preferably, the optical film includes diffusion barrier, brightness enhancement film and sunscreen film successively from the near to the distant apart from light guide plate.
Preferably, the backlight module further includes the reflector plate being located under the light guide plate.
Preferably, the light guide plate includes an at least incidence surface, on the madial wall of first side plate, corresponding incidence surface also
Equipped with luminescence component.
Preferably, the bottom frame is metal frame, and the center is glue frame.
Preferably, the bottom frame is aluminium frame.
Preferably, be additionally provided with magnetic part in the light guide plate, after the surface modification treatment of the aluminium frame in light guide plate
Magnetic part absorption is fixed.
A kind of display device, including backlight module described above.
The utility model has the following advantages：
By support portion increase the first side plate upper surface bearing area, with prevent cyclic annular platform be depressed into the optical film with
It avoids optical film that the possibility of fold or deformation occurs, enhance backlight effect and improves the stability of backlight module.
Description of the drawings
Fig. 1 is the sectional view of backlight module in the prior art；
Fig. 2 is depressed into partial sectional view when optical film for cyclic annular platform in Fig. 1；
Fig. 3 is the sectional view of the backlight module of the another embodiment of the prior art；
Fig. 4 is the sectional view of backlight module in the utility model；
Fig. 5 is the first side plate of backlight module and the sectional perspective structural schematic diagram of support portion in Fig. 4.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and examples, embodiment is only to the utility model
Preferred embodiment, not as the restriction to the utility model scope of the claimed.
As shown in Figs. 1-2, existing backlight module includes bottom frame 100 and center 500, and the bottom frame 100 includes bottom plate 110
With the first side plate 120 for forming groove-like with bottom plate 110, the center 500 is including the second side plate 510 and by the second side plate 510
Bend inwards the cyclic annular platform 520 to be formed, the madial wall snapping of the lateral wall of first side plate 120 and second side plate 510
So that center 500 coats bottom frame 100.Equipped with light guide plate 200 and the optical film being located on light guide plate 200 in the bottom frame 100
400, the light guide plate 200 includes an at least incidence surface 210, on the madial wall of first side plate 120, corresponding incidence surface 210
It is additionally provided with luminescence component 300.The ring-type platform 520 is thin and flexible, is easy to be depressed into optical film 400, to cause 400 pleat of optical film
Wrinkle or deformation, influence backlight effect, reduce the stability of backlight module.
As shown in figure 3, also occurring that the first side plate 120 bends inwards to form flanging 121 in the prior art, flanging 121 can
Prevent cyclic annular platform 520 from pushing optical film, but flanging 121 and the first side plate 120 are technological formings at twice（Side 121 is first washed off, then
Rush the first side plate 120）, so the phenomenon that there are differences in height, and then the thickness of backlight module is influenced, such as to make flanging 121 and the
The high plane such as side plate 120, difficulty are very big.
As shown in Figure 4, Figure 5, which show a kind of backlight modules provided by the utility model, during which is mainly
Large scale（5 cun or more）Backlight module comprising bottom frame 1 and center 5, the bottom frame 1 include bottom plate 11 by bottom plate 11 outside
The first side plate 12 being bent to form in circumferential direction, the center 5 include that the second side plate 51 and being bent inwards by the second side plate 51 is formed
Cyclic annular platform 52, the madial wall snapping of the lateral wall of first side plate 12 and second side plate 51 is so that center 5 coats bottom
Frame 1.The optical film 4 that the bottom plate 11 is equipped with light guide plate 2 and is located on light guide plate 2.It is improved preferably as the utility model
Embodiment, the madial wall of first side plate 12 wash off to form a support portion 13, and the upper surface of the support portion 13 is not higher than the
The upper surface of side plate 12.The bearing area for increasing 12 upper surface of the first side plate by support portion 13, to prevent under cyclic annular platform 52
It is pressed onto the possibility that fold or deformation occur to avoid optical film 4 for the optical film 4, enhance backlight effect and improves backlight module
Stability.It should be understood that the mode that the support portion 13 washes off has for the prior art, can be by the first side plate
12 top is stamped and formed out directly down, and the support portion 13 can be fully connected with the first side plate 12, can also be as
It is locally-attached with the first side plate 12 shown in Fig. 5.
Optical film 4 described in the utility model includes diffusion barrier 43,42 and of brightness enhancement film successively from the near to the distant apart from light guide plate
Sunscreen film 41, wherein sunscreen film 41 are to have in the prior art, the light for being incident to backlight module can be made to reflect away, to reach
To the purpose of protection diffusion barrier 43 and brightness enhancement film 42, its deformation of fading is prevented.
Backlight module described in the utility model further includes the reflector plate 7 being located under the light guide plate 2.
Light guide plate 2 described in the utility model includes that at least an incidence surface 21 and light-emitting surface, the setting of the optical film 4 are going out
In smooth surface, on the madial wall of first side plate 12, corresponding incidence surface 21 be additionally provided with luminescence component 3, the luminescence component 3 includes
Wiring board 31 and lamp bar 32.
As a further improvement, the bottom frame 1 is preferred but is not limited to metal frame.The center 5 be metal frame or glue frame,
The preferred glue frame of the utility model, it is highly preferred that the metal frame is the aluminium frame that surface has corundum layer.Wherein, the corundum layer
It is formed on aluminium frame surface by anode surface oxidation, controls its hardness in 200 ~ 300HV, backlight module can be improved
Stability and backlight effect.
As a further improvement, magnetic part 22 is additionally provided in the light guide plate 2, after the surface modification treatment of the aluminium frame
（Such as plate Ni-P）Can be attracting with the magnetic part 22 in light guide plate 2, light guide plate 2 and bottom frame 1 can be further fixed.
A kind of display device, including backlight module described above, the backlight module for display device providing
Even light.
Finally, it should be noted that above example be only to illustrate the embodiment of the present invention technical solution rather than to its into
Row limitation, although the embodiment of the present invention is described in detail with reference to preferred embodiment, those skilled in the art
It should be understood that the technical solution of the embodiment of the present invention can be still modified or replaced equivalently, and these are changed or wait
The range of modified technical solution disengaging technical solution of the embodiment of the present invention cannot also be made with replacement.
Claims (8)
1. a kind of backlight module, including bottom frame and center, the bottom frame includes that bottom plate and being folded upward at by bottom plate periphery is formed
First side plate, the center include the second side plate and the cyclic annular platform formed that bent inwards by the second side plate, first side plate
So that center coats bottom frame, the bottom plate is equipped with light guide plate and is located at and leads the madial wall snapping of lateral wall and second side plate
Optical film on tabula rasa, which is characterized in that the madial wall of first side plate washes off to form a support portion, the support portion it is upper
End face is not higher than the upper surface of the first side plate.
2. a kind of backlight module as described in claim 1, which is characterized in that the optical film apart from light guide plate from the near to the distant according to
Secondary includes diffusion barrier, brightness enhancement film and sunscreen film.
3. a kind of backlight module as described in claim 1, which is characterized in that the backlight module further includes being located at the leaded light
Reflector plate under plate.
4. a kind of backlight module as described in claim 1, which is characterized in that the light guide plate includes an at least incidence surface, institute
It states on the madial wall of the first side plate, corresponding incidence surface is additionally provided with luminescence component.
5. a kind of backlight module as described in claim 1, which is characterized in that the bottom frame is metal frame, and the center is glue
Frame.
6. a kind of backlight module as claimed in claim 5, which is characterized in that the bottom frame is aluminium frame.
7. a kind of backlight module as claimed in claim 6, which is characterized in that magnetic part is additionally provided in the light guide plate, it is described
It adsorbs and fixes with the magnetic part in light guide plate after the surface modification treatment of aluminium frame.
8. a kind of display device, including such as claim 1-7 any one of them backlight modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590554.5U CN208027053U (en) | 2018-04-24 | 2018-04-24 | A kind of backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590554.5U CN208027053U (en) | 2018-04-24 | 2018-04-24 | A kind of backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208027053U true CN208027053U (en) | 2018-10-30 |
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ID=63911076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820590554.5U Active CN208027053U (en) | 2018-04-24 | 2018-04-24 | A kind of backlight module and display device |
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| Country | Link |
|---|---|
| CN (1) | CN208027053U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109493731A (en) * | 2018-12-19 | 2019-03-19 | 友达光电股份有限公司 | Backlight module |
| CN115755466A (en) * | 2022-11-23 | 2023-03-07 | 惠科股份有限公司 | Backlight module and display device |
-
2018
- 2018-04-24 CN CN201820590554.5U patent/CN208027053U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109493731A (en) * | 2018-12-19 | 2019-03-19 | 友达光电股份有限公司 | Backlight module |
| CN115755466A (en) * | 2022-11-23 | 2023-03-07 | 惠科股份有限公司 | Backlight module and display device |
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