CN207096649U - A kind of metal lower frame and backlight module - Google Patents
A kind of metal lower frame and backlight module Download PDFInfo
- Publication number
- CN207096649U CN207096649U CN201721091136.3U CN201721091136U CN207096649U CN 207096649 U CN207096649 U CN 207096649U CN 201721091136 U CN201721091136 U CN 201721091136U CN 207096649 U CN207096649 U CN 207096649U
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- lower frame
- metal lower
- backlight module
- light guide
- plate
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Abstract
The utility model discloses a kind of metal lower frame, it includes bottom plate and four side plates being folded upward at respectively along the side of bottom plate four, the junction of the adjacent side plate is provided with cornerite portion, the cornerite portion includes the breach for being opened in side plate end and the bound edge for encasing the breach, and the bound edge is stretched out by another side end adjacent with the side plate to be bent to form.The invention also discloses a kind of backlight module for including above-mentioned metal lower frame.Capital subordinate's frame, compared to traditional angle wrapping structure, the breach in the cornerite portion of capital subordinate's frame is smaller narrower, it is possible to reduce the light leak of breach and enters dirt, also makes that metal lower frame process is simpler, and flatness more preferably controls.
Description
Technical field
Display backlight field is the utility model is related to, more particularly to a kind of metal lower frame and backlight module.
Background technology
Backlight module turns into one of key component of liquid crystal display device.Backlight module generally comprises brandreth 1 ', set respectively
In the glue frame on brandreth, light guide plate, optical film group, black and white shading glue and light source etc..Usually, brandreth 1 ' includes bottom plate ' and four
Individual side plate 11 ', brandreth 1 ' be molded when, in order to avoid the junction of adjacent biside plate 11 ' interferes problem, need to preset one compared with
Big breach 12 ' can just turn up biside plate 11 ', as shown in Figure 1；But the inside of breach 12 ' is exactly light guide plate 2 ' and optics
Film group 3 ', then the breach 12 ' it is larger easily cause to exist light leak and enter the bad of dirt.Generally for this problem is avoided, propose such as
Lower two kinds of angle wrapping structures：Block rubber is filled in here and blocks dust entrance, or is pasted tipping paper outside and fallen the bag of breach 12 '；
But it is both needed to increase process cost increase, and is difficult to ensure that flatness.
Utility model content
In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of metal lower frame, compared to traditional bag
Corner structure, the breach in the cornerite portion of capital subordinate's frame are smaller narrower, it is possible to reduce the light leak of breach and enter dirt, also make metal lower frame
Process is simpler, and flatness more preferably controls.
The utility model additionally provides a kind of backlight module for including above-mentioned metal lower frame.
The utility model technique effect to be reached is realized by following scheme：
A kind of metal lower frame, it includes bottom plate and four side plates being folded upward at respectively along the side of bottom plate four, the adjacent side
The junction of plate is provided with cornerite portion, and the cornerite portion includes being opened in the breach of side plate end and for encasing the breach
Bound edge, the bound edge is stretched out by another side end adjacent with the side plate to be bent to form.
One kind as metal lower frame provided by the utility model is improved, and each side plate one end offers described lack
Mouthful, the other end is outward extended with the bound edge.
One kind as metal lower frame provided by the utility model is improved, the both ends of the wherein biside plate of four side plates
Portion offers the breach, and the both ends of biside plate are outward extended with the bound edge in addition.
One kind as metal lower frame provided by the utility model is improved, and the metal lower frame is chase, aluminium frame, stainless steel
Frame or alloy frame.
A kind of backlight module, it includes any above-mentioned metal lower frame.
One kind as backlight module provided by the utility model is improved, in addition to is set under the metal in inframe
Frame, the light guide plate and luminescence component being arranged between the metal lower frame and center, the luminescence component is towards the light guide plate
Incidence surface set.
One kind as backlight module provided by the utility model is improved, in addition to the light positioned at the light guide plate exiting surface
Learn film group.
One kind as backlight module provided by the utility model is improved, and the optical film group is accommodated in the light guide plate
In the groove surrounded with the center plummer.
One kind as backlight module provided by the utility model is improved, and the optical film group includes being gone out by the light guide plate
Diffusion barrier, lower brightness enhancement film and the upper brightness enhancement film that smooth surface is up laminated successively.
One kind as backlight module provided by the utility model is improved, in addition to the reflection positioned at the light guide plate bottom
Piece.
The utility model has advantages below：The breach in the cornerite portion of capital subordinate's frame is smaller narrower, it is possible to reduce breach
Light leak and enter dirt, also make that metal lower frame process is simpler, and flatness more preferably controls, simple in construction, can reduce and be produced into
This, convenient application.
Brief description of the drawings
Fig. 1 is the structural representation of brandreth in existing backlight module；
Fig. 2 is the partial structural diagram of existing backlight module；
Fig. 3 is the partial structural diagram of metal lower frame in the utility model, wherein the bound edge is not bent；
Fig. 4 is the partial structural diagram of metal lower frame in the utility model, wherein the bound edge bent encase it is described
Breach；
Fig. 5 is another partial structural diagram of metal lower frame in the utility model；
Fig. 6 is the partial structural diagram of backlight module in the utility model；
Fig. 7 is a kind of structural representation of embodiment of backlight module in the utility model；
Fig. 8 is the partial structural diagram of backlight module another embodiment in the utility model.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Fig. 3 ~ 5, the present embodiment provide a kind of metal lower frame 1 include bottom plate 11 and respectively along the side of bottom plate 11 4 to
Four side plates 12 of upper bending, the junction of the adjacent side plate 12 are provided with cornerite portion.The cornerite portion is in office including opening up
The breach 121 of the end of side plate 12 and the bound edge 122 for encasing the breach 121, the bound edge 122 by with the side plate 12
The adjacent end of another side plate 12, which stretches out, to be bent to form.
During specific implementation, after the metal lower frame 1 is molded, the cornerite portion of every nook and cranny causes the junction of adjacent side plates 12 only
In the presence of each gap a positioned at side plate 12 and bottom plate 11, this gap a sizes are 0 ~ 0.03mm.When with stronger technique energy
0 gap can be realized during power, when with general technological ability this gap a can also be controlled to be compared in the range of 0.03mm
Traditional big breach 121, gap a is smaller by narrower even zero, the problem of can avoiding light leak and enter dirt, also makes metal lower frame
1 process is simpler, and flatness more preferably controls, simple in construction, can reduce production cost, convenient application.
As a kind of preferable embodiment, each one end of side plate 12 offers the breach 121, the other end
It is outward extended with the bound edge 122.
As another preferable embodiment, the both ends of the wherein biside plate 12 of four side plates 12 offer
The breach 121, in addition the both ends of biside plate 12 be outward extended with the bound edge 122.I.e., it is possible to it is that two long side plates 12 are equal
The breach 121 is offered, two wide side plates 12 are provided with the corresponding bound edge 122, but are not limited to this.
It should be noted that the metal lower frame 1 can be chase, aluminium frame, stainless steel framework or alloy frame, but it is not limited to
This.
Embodiment 2
As shown in fig. 6, a kind of backlight module that the present embodiment provides includes metal lower frame 1 as described in Example 1, is arranged
Center 2 in the metal lower frame 1, the light guide plate 3 being arranged between the metal lower frame 1 and center 2, towards the leaded light
The incidence surface of plate 3 is arranged on the luminescence component on the metal lower frame 1.
In order to preferably provide light source to display panel, the backlight module further comprises positioned at the leaded light
The reflector plate 6 of the bottom of plate 3 and the optical film group 5 positioned at the exiting surface of light guide plate 3, the optical film group 5 is from the light guide plate 3
Exiting surface, which rises to stack gradually, includes diffusion barrier, lower brightness enhancement film and upper brightness enhancement film.
As a kind of preferable improved procedure, as shown in fig. 7, the optical film group 5 is accommodated in the light guide plate 3 and institute
State in the groove that the plummer 21 of center 2 surrounds, then the exiting surface of the light guide plate 3 is a part of is in contact with the plummer 21.
It is worth noting that, the light guide plate 3 is preferred but is not limited to thin light guide panel 3, this thin light guide panel 3 is relative
For, such as 7 cun of backlight product, the wherein thickness of light guide plate 3 is that below 0.6mm is thin light guide panel 3；Less than 5 cun of backlight production
Product, the wherein thickness of light guide plate 3 are that below 0.4mm is thin light guide panel 3.But thin light guide plate 3 under gravity can be downward
Deformation is produced, and the metal lower frame 1 itself has certain angularity, and certain foozle be present in each fitting dimension, because
This causes the downward deformation at the deformation of metal lower frame 1 of light guide plate 3 bigger so that light guide plate 3 and the plummer 21 in face disposed thereon
Gap a be present and whole side seam gap a is of different sizes, cause local luminance big, produce bright line, cause the afterbody of light guide plate 3（With it is described
The corresponding one end of incidence surface）Visible area edge effect is inconsistent, and product stability is poor.
In order to overcome above mentioned problem, it is preferable that be fitted between the afterbody and the metal lower frame 1 of the light guide plate 3
Buffer substrate tablet 7, it is preferably located at the sponge in visible area, using the characteristic of the compressible bounce-back of sponge make the light guide plate 3 with
The deformation of metal lower frame 1 and the afterbody of light guide plate 3 can be close to the lower surface of the plummer 21 of center 2 during deformation, i.e., between the two
There is no gap a, then avoid gap a light leaks from causing local bright line problem.
During specific implementation, the buffer substrate tablet 7 may be provided between the reflector plate 6 and metal lower frame 1.
As another preferable improved procedure, as shown in figure 8, the side plate 12 of the metal lower frame 1 is with least certain
Position mechanism 13, it includes the invayination 131 formed from the upward reflexed 180 degree in the root of side plate 12, and from it is each it is described instead
The perpendicular folding part 132 of 90 degree of folding is erected in folding part 131 upwards, and a boss 133 is provided with the perpendicular folding part 132；The perpendicular folding part 132 is supported
The lateral edges of light guide plate 3 are touched to carry out positioning limit to the light guide plate 3 in backlight assembling process；The boss 133 is worn
The optical film is crossed to be positioned in backlight assembling process to the optical film group 5.So as to be formed on a kind of metal lower frame 1
Itself is provided with the backlight module of location structure, solves the problems, such as location difficulty in backlight module assembling process well.
During specific implementation, the location structure can be arranged on backlight except be provided with the side plate 12 of luminescence component 4 with
On outer any side plate 12.The detent mechanism 13 is not limited to be arranged on the fixed position of the side plate 12, this area skill
Art personnel can be actually needed in assembling process, at one jiao of the central or described side plate 12 of the side plate 12 or other
Any suitable location flexibly sets said structure.
Rib 23 corresponding with the detent mechanism 13 is provided with the center 2, it is used to block the shape of side plate 12
Breach caused by after into the detent mechanism 13, to avoid side plate 12 from forming the problem of producing light leak after the detent mechanism 13.
The plummer 21 of the center 2 is provided with the through hole 22 for avoiding the boss 133, both can be that center 2 provides positioning work
With the contraction distortion of center 2 can be prevented again.The boss 133 could be arranged to a part and be connected to the plummer 21
Bottom；A part passes through the plummer 21, so as to be not only that center 2 provides positioning action, can also further keep away
Exempt from the plummer 21 of center 2 to push so that optical film deformation, can prevent the contraction distortion of center 2 again.
It is last it should be noted that above example is only illustrating the technical scheme of the embodiment of the present invention rather than it is entered
Row limitation, although the embodiment of the present invention is described in detail with reference to preferred embodiment, one of ordinary skill in the art
It should be understood that can still be modified to the technical scheme of the embodiment of the present invention or equivalent substitution, and these modifications or wait
The scope of amended technical scheme disengaging technical scheme of the embodiment of the present invention can not also be made with replacement.
Claims (10)
1. a kind of metal lower frame, it includes bottom plate and four side plates being folded upward at respectively along the side of bottom plate four, it is characterised in that phase
The junction of the adjacent side plate is provided with cornerite portion, and the cornerite portion includes being opened in the breach of side plate end and for encasing
The bound edge of the breach, the bound edge is stretched out by another side end adjacent with the side plate to be bent to form.
2. metal lower frame according to claim 1, it is characterised in that each side plate one end offers described lack
Mouthful, the other end is outward extended with the bound edge.
3. metal lower frame according to claim 1, it is characterised in that the both ends of the wherein biside plate of four side plates
The breach is offered, the both ends of biside plate are outward extended with the bound edge in addition.
4. metal lower frame according to any one of claims 1 to 3, it is characterised in that the metal lower frame be chase, aluminium frame,
Stainless steel framework or alloy frame.
5. a kind of backlight module, it is characterised in that it includes the metal lower frame as described in Claims 1-4 is any.
6. backlight module according to claim 5, it is characterised in that also include being set under the metal in inframe
Frame, the light guide plate and luminescence component being arranged between the metal lower frame and center, the luminescence component is towards the light guide plate
Incidence surface set.
7. backlight module according to claim 6, it is characterised in that also include the optics positioned at the light guide plate exiting surface
Film group.
8. backlight module according to claim 7, it is characterised in that the optical film group be accommodated in the light guide plate and
In the groove that the center plummer surrounds.
9. the backlight module according to claim 7 or 8, it is characterised in that the optical film group is included by the light guide plate
Diffusion barrier, lower brightness enhancement film and the upper brightness enhancement film that exiting surface is up laminated successively.
10. backlight module according to claim 7, it is characterised in that also include the reflection positioned at the light guide plate bottom
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091136.3U CN207096649U (en) | 2017-08-29 | 2017-08-29 | A kind of metal lower frame and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091136.3U CN207096649U (en) | 2017-08-29 | 2017-08-29 | A kind of metal lower frame and backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096649U true CN207096649U (en) | 2018-03-13 |
Family
ID=61538589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721091136.3U Active CN207096649U (en) | 2017-08-29 | 2017-08-29 | A kind of metal lower frame and backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207096649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782484A (en) * | 2019-01-24 | 2019-05-21 | 重庆京东方显示照明有限公司 | Backlight position limiting structure and backlight source module |
| CN113487966A (en) * | 2020-07-31 | 2021-10-08 | 友达光电股份有限公司 | Display device |
-
2017
- 2017-08-29 CN CN201721091136.3U patent/CN207096649U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782484A (en) * | 2019-01-24 | 2019-05-21 | 重庆京东方显示照明有限公司 | Backlight position limiting structure and backlight source module |
| CN109782484B (en) * | 2019-01-24 | 2022-02-25 | 重庆京东方显示照明有限公司 | Backlight source limiting structure and backlight source module |
| CN113487966A (en) * | 2020-07-31 | 2021-10-08 | 友达光电股份有限公司 | Display device |
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