CN207962324U - A kind of backlight module - Google Patents
A kind of backlight module Download PDFInfo
- Publication number
- CN207962324U CN207962324U CN201820464293.2U CN201820464293U CN207962324U CN 207962324 U CN207962324 U CN 207962324U CN 201820464293 U CN201820464293 U CN 201820464293U CN 207962324 U CN207962324 U CN 207962324U
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- positioning
- positioning column
- backlight module
- optical film
- hole
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Abstract
The utility model discloses a kind of backlight modules, it includes the lower frame for being sequentially overlapped setting from bottom to top, reflector plate, light guide plate and optical film group, the light guide plate upper and lower surface is respectively equipped at least one first positioning column and at least one second positioning column, the optical film group is equipped with first positioning hole corresponding with first positioning column, and the reflector plate is equipped with second location hole corresponding with second positioning column.First positioning hole in optical film group can realize positioning and fixation by the first positioning column, second location hole on reflector plate can realize positioning and fixation by the second positioning column, it by auxiliary fixture without being positioned, assembling process is simple, assembly precision is high, can reduce the production cost of backlight module.
Description
Technical field
The utility model is related to a kind of display technology fields, more specifically to a kind of backlight module.
Background technology
Present display technology field increasingly tends to miniaturization, narrow frame direction is developed, the lower frame in backlight module
It would generally be turned up at edge to form side, but in order to realize that narrow frame design, usual lower frame only can be in the sides equipped with lamp bar
It turns up, other edges are not turned up, this may result in reflector plate, light guide plate and optical film group in backlight module and is unable to get effectively
Positioning, it usually needs some auxiliary fixtures realize positioning, cause the assembling process complicated, and assembly precision is low, cause product at
This rising.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of backlight module, without by auxiliary fixture come
Positioning, assembling process is simple, and assembly precision is high, can reduce the production cost of backlight module.
Technical problem to be solved in the utility model is achieved by the following technical programs：
In order to solve the above technical problems, the utility model provides a kind of backlight module comprising fold successively from bottom to top
The lower frame set, reflector plate, light guide plate and optical film group are added, the light guide plate upper and lower surface is respectively equipped at least one
First positioning column and at least one second positioning column, the optical film group are equipped with and first positioning column corresponding first
Location hole, the reflector plate are equipped with second location hole corresponding with second positioning column.
Further, the lower frame is equipped with second location hole corresponding with second positioning column.
Further, there are two first positioning columns, there are two second positioning columns.
Further, there are two the first positioning holes comprising first positioning hole A and first positioning hole B, described first
The diameter of location hole B is slightly larger than the diameter of first positioning column.
The utility model has the advantages that：First positioning hole in optical film group can be by the first positioning column come real
It now positions and fixed, the second location hole on reflector plate can realize positioning and fixation by the second positioning column, without passing through
Auxiliary fixture positions, and assembling process is simple, and assembly precision is high, can reduce the production cost of backlight module.
First positioning hole includes that the diameter of first positioning hole A and first positioning hole B, the first positioning hole B are slightly larger than institute
The diameter of the first positioning column is stated, i.e. first positioning hole B is open end, has certain harmomegathus to live after so that it is coordinated with the first positioning column
Dynamic space avoids that light guide plate and optical film is caused to deform because expanding with heat and contract with cold；And first positioning hole A is then fixing end, it is main
Play fixed function.
Description of the drawings
Fig. 1 is a kind of back light module unit structure schematic diagram provided by the utility model.
Fig. 2 is another back light module unit structure schematic diagram provided by the utility model.
Fig. 3 is lower frame structural schematic diagram.
Specific implementation mode
The utility model is described in detail with reference to embodiment, embodiment is only the preferred reality of the utility model
Mode is applied, is not the restriction to the utility model.
Referring to Fig. 1, being a kind of backlight module provided by the utility model comprising be sequentially overlapped setting from bottom to top
Lower frame 1, reflector plate 2, light guide plate 3 and optical film group 4,3 upper and lower surface of the light guide plate are respectively equipped at least one
One positioning column 5 and at least one second positioning column 6, the optical film group 4 are equipped with corresponding with first positioning column 5 the
A positioning hole, the reflector plate 2 are equipped with second location hole corresponding with second positioning column 6.In optical film group 4
A positioning hole can realize positioning and fixation by the first positioning column 5, and the second location hole on reflector plate 2 can pass through the second positioning
Column 6 realizes positioning and fixation, and without being positioned by auxiliary fixture, assembling process is simple, and assembly precision is high, can reduce the back of the body
The production cost of optical mode group.
Further, first positioning column 5 and second positioning column 6 are located on same axis, can be more easy to
In processing, production cost is reduced.
Further, the lower frame 1 is equipped with third location hole corresponding with second positioning column 6, light guide plate 3
Second positioning column 6 realizes fixed and positioning by third location hole, ensures the stability of total.
Further, in the present embodiment, there are two first positioning columns 5, there are two second positioning columns 6.With
Corresponding first positioning hole, second location hole and third location hole also there are two, the positioning of component can be made more accurate, Gu
It is fixed more firm.Preferably, the first positioning hole includes first positioning hole A and first positioning hole B, the first positioning hole B
Diameter be slightly larger than first positioning column 5 diameter, i.e. first positioning hole B be open end, so that it is coordinated with the first positioning column 5
There is certain harmomegathus activity space afterwards, avoids that light guide plate 3 and optical film is caused to deform because expanding with heat and contract with cold；And first positioning hole A
It is then fixing end, primarily serves fixed function.Similarly, identical setting also can be selected in second location hole and third location hole,
It can play identical effect.
Further, first positioning column 5 and second positioning column 6 are transparent positioning column, with the light guide plate 3
Integrated injection molding, shape are cylindrical or elliptical cylinder-shape, it is made to be hardly damaged.
Referring to Fig. 2, further, being set in light guide plate 3 and the junction of first positioning column 5 on the light guide plate 3
There is the first groove 7 around first positioning column 5, the junction of the light guide plate 3 and second positioning column 6, which is equipped with, to be surround
Second groove 8 of second positioning column 6, when being avoided due to die wear with this, the first positioning column 5 and the second positioning column 6
Fillet is generated at edge angle and generates interference with other component, assembly precision is influenced, to improve yields and efficiency of assembling.
Further, the cross-sectional shape of first groove, 7 and second groove 8 is rectangular, arc-shaped or triangle,
But not limited to this, and rectangular, arc-shaped and triangular structure is simple, easily fabricated；Assembly precision is not interfered with after die wear.
Referring to Fig. 3, further, the side that the lower frame 1 is equipped with lamp bar is equipped with flanging 9, other three sides are not provided with folding
Side 9 is equipped with 91 and/or FPC of buckle extending ports 92 at flanging 9.
Above example only expresses the embodiment of the utility model, the description thereof is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the utility model patent range, as long as the form using equivalent substitution or equivalent transformation is obtained
Technical solution, shall fall within the scope of the present invention.
Claims (4)
1. a kind of backlight module, which is characterized in that it includes the lower frame, reflector plate, light guide plate for being sequentially overlapped setting from bottom to top
With optical film group, the light guide plate upper and lower surface is respectively equipped at least one first positioning column and at least one second and determines
Position column, the optical film group be equipped with first positioning hole corresponding with first positioning column, the reflector plate be equipped with
The corresponding second location hole of second positioning column.
2. backlight module according to claim 1, which is characterized in that the lower frame is equipped with and the second positioning column phase
Corresponding third location hole.
3. backlight module according to claim 1, which is characterized in that there are two first positioning columns, and described second is fixed
There are two position columns.
4. backlight module according to claim 3, which is characterized in that there are two the first positioning holes comprising first
The diameter of location hole A and first positioning hole B, the first positioning hole B are slightly larger than the diameter of first positioning column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820464293.2U CN207962324U (en) | 2018-04-03 | 2018-04-03 | A kind of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820464293.2U CN207962324U (en) | 2018-04-03 | 2018-04-03 | A kind of backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207962324U true CN207962324U (en) | 2018-10-12 |
Family
ID=63726935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820464293.2U Active CN207962324U (en) | 2018-04-03 | 2018-04-03 | A kind of backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207962324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009737A (en) * | 2019-12-19 | 2021-06-22 | 京东方科技集团股份有限公司 | Backlight module and display device |
-
2018
- 2018-04-03 CN CN201820464293.2U patent/CN207962324U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009737A (en) * | 2019-12-19 | 2021-06-22 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN113009737B (en) * | 2019-12-19 | 2022-07-29 | 京东方科技集团股份有限公司 | Backlight module and display device |
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