CN205507302U - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN205507302U CN205507302U CN201620153565.8U CN201620153565U CN205507302U CN 205507302 U CN205507302 U CN 205507302U CN 201620153565 U CN201620153565 U CN 201620153565U CN 205507302 U CN205507302 U CN 205507302U
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Abstract
The embodiment of the utility model discloses backlight unit, this backlight unit includes the framework, locates the light guide plate at framework middle part, and be located light guide plate one side, with the reflection member of framework laminating, wherein, the framework with air duct has been seted up in reflection member's laminating department. The embodiment of the utility model provides a display device including above -mentioned backlight unit is still provided. The embodiment of the utility model provides a backlight module and display device for solve among the prior art among the backlight unit problem that the reflector plate produced deformation easily and then influenced display device's display effect.
Description
Technical field
This utility model relates to display screen manufacturing technology field, especially a kind of backlight module and display dress
Put.
Background technology
Along with mobile Internet and the development of communication technology, the electronic equipment such as mobile phone, panel computer becomes for people
The indispensable instrument of daily life.These electronic equipments for people provide all simultaneously easily,
People are more and more higher to display functional requirement therein.As the LCDs of main flow display screen, its tool
Have that fuselage is thin, power saving and the advantage such as picture is soft, but the material behavior of liquid crystal determines that it needs external light source
Auxiliary reaches display function, and backlight is the light source that liquid crystal display is conventional.Backlight module generally includes
Light source, light guide plate, framework, reflector plate and other optical film sheets etc. form.See Fig. 1-2, wherein
Fig. 1 is the structural representation of backlight module in prior art, and Fig. 2 is backlight module in Fig. 1 along A-A
The generalized section in direction.As shown in Figures 1 and 2, light guide plate 2 is in the middle part of framework 1, and anti-
Penetrate sheet 3 then arrange with light guide plate 2 stacking and fit in framework 1 with double faced adhesive tape 4.
Humiture changes when, due to expanding with heat and contract with cold and the change of air pressure, meeting of material itself
Causing the deformation of backlight reflector plate, the display effect ultimately resulting in display is abnormal.Specifically, the back of the body
The reflector plate 3 of light module is to be attached in framework 1 by four limit double faced adhesive tapes 4, reflector plate 3, double faced adhesive tape 4,
Other assemblies of framework 1, light guide plate 2 and display device can form a confined space, hot and humid
In environment, the air pressure of confined space is to become big, i.e. in hot and humid environment, reflector plate 3, two-sided
Air pressure in the confined space that glue 4, framework 1 and light guide plate 2 are formed, is greater than ambient pressure.Frame
The intensity of body 1 and light guide plate 2 is relatively big, and pressurized is difficult to deformation；Double faced adhesive tape 4 sectional area is less, institute's pressurized
Power is less；And reflector plate 3 area is big, and made of soft, the pressure that inside and outside differential pressure is formed can cause reflection
Film is heaved, and can cause display abnormal (brightness unevenness, shadow, the phenomenon such as Newton's ring) time serious.And
The actual product itself of reflector plate 3, double faced adhesive tape 4, framework 1 and light guide plate 2 be unlikely to be substantially flat,
Regular, uniform, homogeneous, temperature the caused unequal power distribution that changes is more prone to cause reflection
Sheet deforms upon, and then affects display effect.
In the prior art, following two scheme is typically taked to solve the display abnormal problems such as Newton's ring.Its
One is to push down reflector plate 3 with foam at the another side of the relative light guide plate 2 of reflector plate 3, so that reflector plate 3
Tight light guide plate 2, the problem that can cause structural reliability but light guide plate is squeezed.It two is two-sided
The corner of glue 4 respectively reserves an opening with the pressure in the middle part of balance framework 1；Seeing Fig. 3, it is existing
The layout schematic diagram of double faced adhesive tape in technology backlight module.But the program is due to open amount the most very little,
And layout pitch is too big, actual convection effects is the best, and cannot solve the impact of material self dilation；
On the other hand owing to not having the fixing of double faced adhesive tape, reflector plate is also susceptible to shrinkage at rim openings, because of
And the display abnormal problem of display device can not be solved very well.
Utility model content
This utility model embodiment provides a kind of backlight module and display device, in order to solve in prior art
In backlight module, reflector plate easily produces deformation and then affects the problem of display effect of display device.
A kind of backlight module that this utility model embodiment provides, including framework, is located in the middle part of described framework
Light guide plate, and be positioned at described light guide plate side and described framework laminating reflecting element, wherein, institute
State framework and offer air duct in the joint place with described reflecting element.
This utility model embodiment additionally provides a kind of display device including above-mentioned backlight module.
The backlight module of this utility model embodiment offer and display device, by offering air in framework
Passage, connection framework central space and the space outerpace of described framework, can in the connection not affecting reflecting element
On the premise of property, make framework inner air form convection current with ambient air outside, eliminate reflection simultaneously
The problem that part local pressure is uneven, it is achieved that ensureing not affect the reliable of backlight module or even display device
While property, solve the display problem caused due to reflecting element pressurized deformation.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, embodiment will be retouched below
In stating, the required accompanying drawing used is briefly described, and the accompanying drawing in describing below is only this utility model
The accompanying drawing of some embodiments, for those of ordinary skill in the art, do not paying creative work
On the premise of, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of backlight module in prior art；
Fig. 2 is the generalized section along A-A direction of the backlight module in Fig. 1；
Fig. 3 is the layout schematic diagram of double faced adhesive tape in prior art backlight module；
Fig. 4 is the structural representation of the first embodiment of backlight module of the present utility model；
Fig. 5 is the B-B generalized section of Fig. 4 of the present utility model；
Fig. 6 is structural representation Fig. 1 of the second embodiment of backlight module of the present utility model；
Fig. 7 is the C-C generalized section of Fig. 6 of the present utility model；
Fig. 8 be backlight module of the present utility model the second embodiment in the layout schematic diagram of double faced adhesive tape；
Fig. 9 is structural representation Fig. 2 of the second embodiment of backlight module of the present utility model；
Figure 10 is the D portion enlarged drawing of Fig. 9 of the present utility model.
Detailed description of the invention
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect more clear bright
In vain, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that
Specific embodiment described herein, only in order to explain this utility model, is not used to limit this practicality new
Type.
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this
The scope of utility model protection.
Embodiment one
Seeing Fig. 4 and Fig. 5, wherein, Fig. 4 is the first embodiment of backlight module of the present utility model
Structural representation, Fig. 5 is the B-B generalized section of Fig. 4 of the present utility model.
Specifically, this backlight module includes framework 1, is located at the light guide plate 2, Yi Jiwei in the middle part of framework 1
In the reflecting element 3 fitted in light guide plate 2 side and framework 1, framework 1 is in the joint place with reflecting element 3
Offer air duct 11.Wherein, reflecting element 3 include reflector plate or reflectance coating etc. for reflect light with
The blooming piece of supply liquid crystal illumination；Air duct 11 then can be to be the logical of through-hole form or cell body form
Road.
In this utility model embodiment, by offer in framework 1 connection framework 1 in the middle part of confined space and
The air duct 11 of space outerpace, makes the pressure that reflecting element 3 is suffered when ambient temperature or humidity produce change
Power is balanced.It addition, temperature also has Different Effects to open space and confined space atmospheric pressure: its
In, in confined space, when temperature raises, air expansion, air pressure becomes big；And at open space, when
When atmospheric temperature raises, air expansion, air molecule district peripherally spreads, and air pressure diminishes.Similarly,
Humidity has Different Effects to open space and confined space atmospheric pressure: in confined space, as long as wherein
Gas be not up to saturation, when we input steam in container when, the pressure of gas is inevitable
Can increase；And in open space, when atmospheric humidity increases, " humid air " molecule (includes that air divides
Son and vapour molecule) diffusion, " dry air " content caused in air is reduced by its result, and steam
Content increases, and density of moist air is less than dry air density, so atmospheric pressure subtracts with the increase of air humidity
Little.The air that we are commonly called, it is simply that surround circumterrestrial whole air layer.It is except containing
Outside the multiple gases such as nitrogen, oxygen and carbon dioxide, possibly together with steam and dust. we are containing steam very
The Air balance " dry air " of few (i.e. humidity is little), and the air containing steam more (i.e. high humidity)
Claim " humid air ".The molecular weight of dry air is 28.966, and the molecular weight of steam is 18.016, therefore dry
Air molecule is than vapour molecule weight.Under same condition, the density of dry air is also big than the density of steam.
The density of steam is only about the 62% of dry air density.When air duct 11 has broken this confined space,
Ventilate, namely eliminate reflecting element 3 within this space owing to the change of humiture creates stress
Imbalance problem.
The backlight module that this utility model embodiment provides, by offering air duct 11 in framework 1,
This air duct 11 connects framework 1 central space and the space outerpace of framework 1, is not affecting reflecting element 3
Connection reliability on the premise of, make framework 1 inner air and ambient air outside form convection current, simultaneously
Eliminate the problem that reflecting element 3 local pressure is uneven, it is achieved that do not affect backlight module in guarantee or even show
While the reliability of showing device, solve the display problem caused due to reflecting element 3 pressurized deformation.
Embodiment two
See the structure of the second embodiment that Fig. 6 and Fig. 7, Fig. 6 are backlight modules of the present utility model to show
Being intended to 1, Fig. 7 is the C-C generalized section of Fig. 6 of the present utility model.Wherein, this backlight module bag
Include framework 1, be located at the light guide plate 2 in the middle part of framework 1, and be positioned at light guide plate 2 side and framework 1
The reflecting element 3 of laminating, framework 1 offers air duct in the joint place with reflecting element 3.
Further, framework 1 includes four sidewalls, and light guide plate 2 is positioned at four sidewalls and surrounds the chamber of formation
Internal, at least two sidewall offers air duct.
In this utility model embodiment, at least two sidewall of framework 1 is offered air duct, permissible
Ensure the circulation effect of air.
Further, in framework 1 relative to the impartial spaced air ducts that are provided with of two described sidewalls, phase
To the asymmetric setting of air duct of two sidewalls.
In this utility model embodiment, relative two sidewalls in framework 1 are offered air duct and can be entered one
Step improves the convection effects of air；It addition, these air ducts are equidistant and unsymmetrical arrangement is in relative two
Individual sidewall, the air duct turnover air on the one hand making each position of sidewall is uniform, on the other hand prevents again
Each symmetric position convection effects of opposing sidewalls differs, it is achieved that in cavity, air and outside air is equal
Even convection current, thus ensure that reflecting element 3 by pressure balanced.
Further, air duct is distributed in the left side wall 12 of framework 1, right side wall 13 and upper side wall 14.
In this utility model embodiment, owing to the light source of backlight module is generally disposed at the lower wall of framework 1,
So air duct to be opened in other sidewalls of framework 1, i.e. left side wall 12, right side wall 13 and upside
Wall 14.
It addition, when backlight module is applicable to the display device of other shapes, then framework arrange light source with
Air duct is offered in other outer positions.Such as, when the cross section of display device is circular, framework is only wrapped
Include a sidewall, then air duct is distributed in this sidewall and arranges other positions beyond light source；When display dress
When the cross section put is triangle, framework includes three sidewalls, then air duct is arranged in be provided with light source with
Other outer two sidewalls.
Further, reflecting element 3 fits in framework 1 with double faced adhesive tape 4, and air duct includes breach 15,
Breach 15 is opened in the edge, joint place of framework 1 and double faced adhesive tape 4.
In this utility model embodiment, air duct is arranged in framework 1 and double faced adhesive tape 4 with breach 15 form
Edge, joint place, on the one hand be easier to processing relative to through hole；On the other hand, these breach 15 are more
Stick near reflex part 3, can preferably complete cross-ventilation task.It is additionally, since double faced adhesive tape 4 no longer
Need to make opening to process, the edge generation unbalance stress of reflecting element 3 will not be made to produce buckling problems.
Further, the height of breach 15 is 0.03～0.05mm, and the width of breach 15 is 0.5～2mm.
In this utility model embodiment, the height of breach 15 being set to 0.03～0.05mm, width is
0.5～2mm, on the one hand meet cross-ventilation, on the other hand do not affect backlight module structural reliability and
Backlight effect.
Further, double faced adhesive tape 4 is distributed in reflecting element 3 and the left hand edge of framework 1 laminating one side, the right
Edge, top edge, and the two ends of lower limb.Seeing Fig. 8, it is backlight module of the present utility model
The layout schematic diagram of double faced adhesive tape 4 in second embodiment.Wherein, the correspondence position on the downside of reflecting element 3 is arranged
There is light source, thus double faced adhesive tape 4 is arranged in the left hand edge of reflecting element 3, right hand edge, top edge, and
The two ends of lower limb.
Seeing Fig. 9 and Figure 10, wherein, Fig. 9 is the second embodiment of backlight module of the present utility model
Structural representation Fig. 2, Figure 10 are the D portion enlarged drawings of Fig. 9 of the present utility model.Wherein, breach 15
Size is gradually increased in the middle part of breach 15 to the direction at two ends.As it can be seen, be arranged in framework 1
The breach 15 opening part at two ends the widest, in Double-horn type, can preferably promote air in cavity
Circulation with outside air.
Air duct equidistantly and is asymmetrically arranged in frame by the backlight module of this utility model embodiment
The left side wall of body, right side wall and upper side wall, it is ensured that the circulation effect of air and outside air in cavity；
Air duct is set to breach, and this breach is Double-horn type, ensureing that structural reliability and processing are convenient
On the premise of improve further cross-ventilation effect.
Embodiment to backlight module of the present utility model has been made to be discussed in detail above.Below will be for including
The display device of above-mentioned backlight module is further elaborated.
The display device of this utility model embodiment includes above-mentioned backlight module.Further, this display
Device includes but not limited to that mobile phone, navigator, panel computer, photographing unit, laptop computer and intelligence are dressed
Equipment.
The display device that this utility model embodiment provides, by offering air duct in framework, connection
Framework central space and the space outerpace of described framework, in the premise of the connection reliability not affecting reflecting element
Under, make framework inner air form convection current with ambient air outside, eliminate reflecting element local pressure simultaneously
Uneven problem, it is achieved that while guarantee does not affect the reliability of backlight module or even display device,
Solve the display problem caused due to reflecting element pressurized deformation.
In description of the present utility model, it is to be understood that term " longitudinally ", " radially ", " length ",
" width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ",
" push up ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship are based on orientation shown in the drawings
Or position relationship, it is for only for ease of description this utility model and simplifies description rather than instruction or hint
The device of indication or element must have specific orientation, with specific azimuth configuration and operation, the most not
It is understood that as to restriction of the present utility model.In description of the present utility model, except as otherwise noted, " many
Individual " it is meant that two or more.
When this utility model embodiment mentions the ordinal number such as " first ", " second ", unless according to up and down
The meaning of its certain order of representation of literary composition is it should be understood that be only that differentiation is used.
Above disclosed only this utility model one preferred embodiment, can not limit with this certainly
Determine the interest field of this utility model, one of ordinary skill in the art will appreciate that and realize above-described embodiment
All or part of flow process, and the equivalent variations made according to this utility model claim, still fall within practical new
The scope that type is contained.
Claims (10)
1. a backlight module, described backlight module includes framework, is located at the leaded light in the middle part of described framework
Plate, and it is positioned at described light guide plate side and the reflecting element of described framework laminating, it is characterised in that institute
State framework and offer air duct in the joint place with described reflecting element.
Backlight module the most according to claim 1, it is characterised in that described framework includes four
Sidewall, described light guide plate is positioned at four described sidewalls and surrounds the cavity of formation, sidewall described at least two
On offer described air duct.
Backlight module the most according to claim 2, it is characterised in that in described framework relative to
Two described sidewalls are impartial spaced is provided with described air duct, the sky of described two relative described sidewalls
The asymmetric setting of gas passage.
Backlight module the most according to claim 2, it is characterised in that described air duct is distributed
Left side wall, right side wall and upper side wall in described framework.
5. according to the backlight module according to any one of claim 1-4, it is characterised in that described instead
Penetrating part with double faced adhesive tape together in described framework, described air duct includes that breach, described breach are opened in institute
State the edge, joint place of framework and described double faced adhesive tape.
Backlight module the most according to claim 5, it is characterised in that described double faced adhesive tape is distributed in
The left hand edge of described reflecting element and described framework laminating one side, right hand edge, top edge are, and lower limb
Two ends.
Backlight module the most according to claim 5, it is characterised in that the size of described breach exists
It is gradually increased to the direction at two ends in the middle part of described breach.
Backlight module the most according to claim 5, it is characterised in that the height of described breach is
0.03～0.05mm, the width of described breach is 0.5～2mm.
9. a display device, it is characterised in that described display device includes appointing in claim 1-8
One described backlight module.
Display device the most according to claim 9, it is characterised in that described display device includes
At least one in mobile phone, navigator, panel computer, photographing unit, laptop computer, Intelligent worn device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620153565.8U CN205507302U (en) | 2016-02-29 | 2016-02-29 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620153565.8U CN205507302U (en) | 2016-02-29 | 2016-02-29 | Backlight module and display device |
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| Publication Number | Publication Date |
|---|---|
| CN205507302U true CN205507302U (en) | 2016-08-24 |
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| CN201620153565.8U Active CN205507302U (en) | 2016-02-29 | 2016-02-29 | Backlight module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132695A (en) * | 2017-06-21 | 2017-09-05 | 深圳市泰衡诺科技有限公司 | Mobile phone backlight module buffer structure |
-
2016
- 2016-02-29 CN CN201620153565.8U patent/CN205507302U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132695A (en) * | 2017-06-21 | 2017-09-05 | 深圳市泰衡诺科技有限公司 | Mobile phone backlight module buffer structure |
| CN107132695B (en) * | 2017-06-21 | 2023-12-26 | 深圳市泰衡诺科技有限公司 | Buffering structure of mobile phone backlight module |
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