CN104033852B - Light guide plate compressing structure and backlight module - Google Patents
Light guide plate compressing structure and backlight module Download PDFInfo
- Publication number
- CN104033852B CN104033852B CN201410259385.3A CN201410259385A CN104033852B CN 104033852 B CN104033852 B CN 104033852B CN 201410259385 A CN201410259385 A CN 201410259385A CN 104033852 B CN104033852 B CN 104033852B
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- light guide
- guide plate
- compressing structure
- ball
- protuberance
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Abstract
The invention relates to the technical field of displays, in particular to a light guide plate compressing structure and a backlight module. The light guide plate compressing structure comprises a plastic frame, a rolling component and a compressing member, a protruding portion of the plastic frame is positioned between a display screen panel and a light guide plate, the lower portion of the protruding portion is provided with a deboss matched with the rolling component, the rolling component is positioned in the deboss and compressed by the compressing member arranged in the protruding portion, and the bottom of the rolling component is extended out of the protruding portion and contacts with the light guide plate to slightly press on the light guide plate. When the light guide plate expands in a high-temperature high-pressure experiment, the bottom of the rolling component and the light guide plate are in rolling friction, and the light guide plate moves and extends horizontally and does not deform due to expanding and being limited, so that reliability risk of the light guide plate is lowered.
Description
Technical field
The present invention relates to display technology field, more particularly, to a kind of light guide plate compressing structure and backlight module.
Background technology
In display backlight module, (z-axis to) moves up and down in order to prevent lgp (light guide plate) for traditional large scale module
Dynamic, typically can increase rubber sheet gasket 8 by light guide plate slight compression using glue frame and between glue frame and light guide plate, but this structure exists
When carrying out hot and humid experiment, due to the expansion of light guide plate, produce force of sliding friction at compression, the resistance mistake being is expanded to lgp
Greatly, its reliability can be affected.
Specifically, as shown in figure 1, traditional large scale module is by backboard 1, glue frame 2 and rubber sheet gasket 8 and 4 groups of light guide plate
Become, this protruding parts, between display screen panel 9 and light guide plate 4, in order to prevent light guide plate 4 from moving up and down, typically can adopt
Increase rubber sheet gasket 8 under the protuberance of glue frame 2 by light guide plate 4 slight compression, but this structure is when carrying out hot and humid experiment, by
In the expansion of light guide plate, at compression, produce sliding friction, stop light guide plate x-axis to y-axis to expansion, thus can be too much
Cause light conducting board from deformation, affect its reliability.
Therefore, for above deficiency, the invention provides a kind of light guide plate compressing structure and backlight module.
Content of the invention
(1) technical problem to be solved
It is an object of the invention to provide a kind of light guide plate compressing structure and backlight module are to solve existing light guide plate pressing square
When the light guide plate that formula exists expands, resistance is excessive, and light guide plate is because of the yielding and affected problem of reliability.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of light guide plate compressing structure, it includes glue frame, rolling group
Part and compressing member, glue frame has the protuberance stretching out, this protruding parts between display screen panel and light guide plate, under protuberance
Portion has the depression matching with rolling assembly, and rolling assembly is located in described depression and by the compressing member being arranged in protuberance
Compression, the bottom of rolling assembly is stretched out protuberance and is contacted with light guide plate.
Wherein, described compressing member is a pressure strip, and pressure strip is had the perforate being matched with rolling assembly.
Wherein, described rolling assembly includes a big ball and multiple and described big ball rolls the little ball of cooperation, greatly
Ball is arranged in the depression of protuberance bottom, offers the groove of accommodating little ball in depression.
Wherein, the hole wall of perforate on described pressure strip offers the groove of accommodating little ball.
Wherein, multiple described little balls are distributed on the surface of big ball.
Wherein, described rolling assembly is arranged on the end position of protuberance.
Wherein, between the end face of described light guide plate and glue frame, there is expansion clearance.
Another aspect of the present invention additionally provides a kind of backlight module, and it includes backboard, light guide plate and above-mentioned light guide plate pressure
Locking structure.
(3) beneficial effect
The technique scheme of the present invention has the advantage that light guide plate compressing structure and the backlight module of present invention offer
In, between display screen panel and light guide plate, the bottom of protuberance has match with rolling assembly recessed for glue frame protruding parts
Fall into, rolling assembly is located in described depression and by the compressing member compression being arranged in protuberance, and the bottom of rolling assembly is stretched out convex
Go out portion and contact with light guide plate to be slightly pressed on light guide plate, when light guide plate high temperature and pressure test expands, ball assembly bottom
With light guide plate rolling friction, light guide plate moves in the horizontal direction extension, and light guide plate will not deform because expanding limited, thus reducing
The reliability risk of light guide plate.
Brief description
Fig. 1 is the light guide plate compressing structure schematic diagram in backlight module in prior art；
Fig. 2 is the schematic diagram of embodiment of the present invention light guide plate compressing structure；
Fig. 3 is the schematic diagram of rolling assembly in embodiment of the present invention light guide plate compressing structure.
In figure, 1: backboard；2: glue frame；3: rolling assembly；4: light guide plate；5: big ball；6: little ball；7: pressure strip；8:
Rubber sheet gasket；9: display screen panel.
Specific embodiment
With reference to the accompanying drawings and examples the specific embodiment of the present invention is described in further detail.Following examples
For the present invention is described, but it is not limited to the scope of the present invention.
In describing the invention it is to be understood that term " on ", D score, " vertical ", " level ", " top ", " bottom "
The orientation of instruction such as " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the present invention and simplify description, rather than the device of instruction or hint indication or element must have specific orientation, with specific
Azimuth configuration and operation, be therefore not considered as limiting the invention.
As shown in Figures 2 and 3, the light guide plate compressing structure that the present invention provides includes glue frame 2, rolling assembly 3 and pressure strip
7, rolling assembly 3 includes a big ball 5 and multiple little ball 6 rolling cooperation with big ball 5, and glue frame 2 has stretch out convex
Go out portion, between display screen panel 9 and light guide plate 4, the bottom of protuberance has recessed with what big ball 5 matched for this protruding parts
Fall into, big ball 5 is located in depression and is compressed by the pressure strip 7 being arranged in protuberance, offers accommodating little ball 6 in depression
Groove, pressure strip 7 is had the perforate being matched with big ball 5, and big ball 5 is compressed in the valley by pressure strip 7, big ball 5
The perforate through pressure strip 7 for the bottom stretch out protuberance and contact with light guide plate 4.
In technique scheme, little ball 6 is placed in groove in the valley, big ball 5 is placed in the valley, leads to
Cross pressure strip 7 and big ball 5 compressed in the valley, the perforate through pressure strip 7 of the bottom of big ball 5 stretch out protuberance and with leaded light
Plate 4 contacts, thus it is possible, on the one hand, big ball 5 is gently pressed on light guide plate 4 in vertical direction (i.e. z-axis to), light guide plate 4 will not be gone up
Lower movement, it is to avoid display produces excessive impulsive force to vibration to light guide plate 4 in z-axis, and on the other hand, big ball 5 can be free
Roll, between big ball 5 and light guide plate 4 for rolling friction, frictional force is little with respect to sliding friction, as such, it is possible to convenient
When light guide plate 4 expands, (x-axis to or y-axis to) is mobile in the horizontal direction, and light guide plate 4 will not be subject to because expanding in high temperature and humidity test
Limit and deform, thus reducing the reliability risk of light guide plate 4.
Certainly, other rolling members may also be employed in the present invention, then rolling member is arranged on by glue frame 2 by compressing member and stretches out
Protuberance bottom；Also little ball 6 can be not provided with the present invention, directly with big ball 5 it is also possible to realize the rolling of ball, adopt
The mode being cooperated with little ball 6 and big ball 5, can be more convenient the rolling of big ball 5.
Further, the multiple little ball 6 of the groove hole wall of perforate on pressure strip 7 offering accommodating little ball 6 is uniform
Surface in big ball 5.So, the upper and lower surface in big ball 5 all has the little ball 6 coordinating with it, and big ball 5 can be free
Neatly realize 360 ° of rotation.
Preferably, big ball 5 is arranged near the end position of protuberance.So, it is easy to the design with pressure strip 7 that is recessed
Installation with big ball 5, little ball 6.
In order to ensure that light guide plate 4 has a space of expansion in high temperature and pressure test, the end face of light guide plate 4 and glue frame 2 it
Between there is expansion clearance.
The present invention still further provides a kind of backlight module, and it includes backboard 1, light guide plate 4 and above-mentioned light guide plate compression
Structure.This backlight module due to employing the compressing structure of light guide plate 4 of the present invention, trust in high temperature and humidity test by catheter plate
Property is preferable.
Little ball 6 when mounted, is first placed in the groove opening up in the valley, then by light guide plate compressing structure of the present invention
Put into big ball 5 in the valley, put into little ball 6 in the groove of pressure strip 7 perforate hole wall, then pressure strip 7 is pressed in greatly
On ball 5, the perforate through pressure strip 7 of the bottom of big ball 5 is stretched out protuberance and is contacted with light guide plate 4 and be slightly pressed in leaded light
On plate 4, so using the rolling characteristic of ball, big ball 5 can freely be rolled with 360 °, in vertical direction will not simultaneously
Produce and move, when light guide plate 4 is because expanding left and right or moving up and down, excessive resistance will not be produced.
In sum, the present invention provide light guide plate compressing structure and backlight module in, in the bottom of the protuberance of glue frame 2
Setting depression, places big ball 5, is further opened with groove and is used for placing little ball 6 in depression in depression, big ball 5 passes through compression
Plate 7 compresses, and on the hole wall of the perforate of pressure strip 7, setting groove is used for placing little ball 6, and big ball 5 and little ball 6 roll and join
Close, big ball 5 bottom is stretched out protuberance and is slightly pressed on light guide plate 4, when light guide plate 4 high temperature and pressure test expands, big rolling
Pearl 5 and light guide plate 4 rolling friction, (x-axis to or y-axis to) is mobile in the horizontal direction extends for light guide plate 4, and light guide plate 4 will not be because swollen
Swollen limited and deform, thus reducing the reliability risk of light guide plate 4.
The above is only the preferred embodiment of the present invention it is noted that coming for those skilled in the art
Say, on the premise of without departing from the technology of the present invention principle, some improvement and modification can also be made, these improve and modification also should
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of light guide plate compressing structure it is characterised in that: it includes glue frame, rolling assembly and compressing member, and glue frame has stretches out
Protuberance, between display screen panel and light guide plate, the bottom of protuberance has is matched with rolling assembly for this protruding parts
Depression, rolling assembly be located at described depression in and by be arranged in protuberance compressing member compression, the bottom of rolling assembly is stretched
Go out protuberance and contact with light guide plate.
2. light guide plate compressing structure according to claim 1 it is characterised in that: described compressing member be a pressure strip, compression
The perforate being matched with rolling assembly is had on plate.
3. light guide plate compressing structure according to claim 2 it is characterised in that: described rolling assembly includes a big ball
Roll the little ball of cooperation with multiple and described big ball, big ball is arranged in the depression of protuberance bottom, opens up in depression
There is the groove of accommodating little ball.
4. light guide plate compressing structure according to claim 3 it is characterised in that: open on the hole wall of perforate on described pressure strip
It is provided with the groove of accommodating little ball.
5. light guide plate compressing structure according to claim 3 it is characterised in that: multiple described little balls are distributed on big ball
Surface.
6. light guide plate compressing structure according to claim 1 it is characterised in that: described rolling assembly is arranged on protuberance
End position.
7. light guide plate compressing structure according to claim 1 it is characterised in that: between the end face of described light guide plate and glue frame
There is expansion clearance.
8. a kind of backlight module it is characterised in that: it includes backboard, light guide plate and the leaded light described in any one of claim 1～7
Plate compressing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259385.3A CN104033852B (en) | 2014-06-11 | 2014-06-11 | Light guide plate compressing structure and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259385.3A CN104033852B (en) | 2014-06-11 | 2014-06-11 | Light guide plate compressing structure and backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104033852A CN104033852A (en) | 2014-09-10 |
| CN104033852B true CN104033852B (en) | 2017-02-01 |
Family
ID=51464741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410259385.3A Expired - Fee Related CN104033852B (en) | 2014-06-11 | 2014-06-11 | Light guide plate compressing structure and backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033852B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393341A (en) * | 2007-09-18 | 2009-03-25 | 绿点高新科技股份有限公司 | Frame |
| CN202120013U (en) * | 2011-06-28 | 2012-01-18 | 深圳市华星光电技术有限公司 | Liquid crystal display module |
| CN102661540A (en) * | 2012-04-19 | 2012-09-12 | 达运精密工业（苏州）有限公司 | Backlight module group and electronic device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539682B (en) * | 2008-03-21 | 2011-08-10 | 苏州璨宇光学有限公司 | Backlight module |
| CN201322261Y (en) * | 2008-10-10 | 2009-10-07 | 苏州璨宇光学有限公司 | Side light type back light module |
-
2014
- 2014-06-11 CN CN201410259385.3A patent/CN104033852B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393341A (en) * | 2007-09-18 | 2009-03-25 | 绿点高新科技股份有限公司 | Frame |
| CN202120013U (en) * | 2011-06-28 | 2012-01-18 | 深圳市华星光电技术有限公司 | Liquid crystal display module |
| CN102661540A (en) * | 2012-04-19 | 2012-09-12 | 达运精密工业（苏州）有限公司 | Backlight module group and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104033852A (en) | 2014-09-10 |
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Address after: 230011 Anhui city in Hefei Province, the New Station Industrial Park Applicant after: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Applicant after: BOE TECHNOLOGY GROUP Co.,Ltd. Address before: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Applicant before: BOE TECHNOLOGY GROUP Co.,Ltd. Applicant before: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20170201 |