CN106125397A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN106125397A CN106125397A CN201610559527.7A CN201610559527A CN106125397A CN 106125397 A CN106125397 A CN 106125397A CN 201610559527 A CN201610559527 A CN 201610559527A CN 106125397 A CN106125397 A CN 106125397A
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- CN
- China
- Prior art keywords
- cantilever
- backlight module
- framework
- blooming piece
- locating slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention is about backlight module and display device thereof, backlight module has framework and is configured at the blooming piece inside this framework, blooming piece has side and the positioning tab convexedly stretching on side, positioning tab is step structure, step structure includes first surface, the first joint face, second surface and the second joint face being sequentially connected with, first surface and second surface are staggered and not copline mutually, and second surface is between first surface and side, and the second joint face is connected with side；Framework has locating slot, and locating slot, in order to limit positioning tab, the sidewall of locating slot has bent cantilever；Wherein, when in assembling blooming piece to framework, positioning tab enters locating slot, and cantilever is against second surface, and after blooming piece is assembled to framework, bending cantilever mounted are on the sidewall of locating slot.By coordinating of positioning tab and bent cantilever, improve the accuracy that backlight module assembles, and provide the cushion space of blooming piece.
Description
Technical field
The present invention relates to Display Technique field, more specifically, relate to a kind of backlight mould with liquid crystal display
Group.
Background technology
Owing to liquid crystal indicator (Liquid crystal display, LCD) has very many advantages, liquid in recent years
Crystal device has been widely used in various backlight module.
In liquid crystal indicator, owing to liquid crystal itself does not have the characteristics of luminescence, accordingly, it would be desirable to carry to liquid crystal indicator
For backlight.Backlight module is as one of the critical component of liquid crystal indicator, and its ultimate principle is by point source or line source
It is converted into high brightness and the preferable area source of uniformity, so that liquid crystal panel can normal show image.
As it is shown in figure 1, the top view of the backlight module in existing a kind of liquid crystal indicator, backlight module 10 includes:
Backboard 11, glue frame 12 and optical diaphragm group 13, optical diaphragm group (being made up of several blooming pieces) 13 is arranged at glue frame 12
Inner side, backboard 11 is used for housing optical diaphragm group 13 and glue frame 12, wherein, glue frame 12 has locating slot 14, optical diaphragm group
13 have the positioning tab 15 corresponding with locating slot 14, and optical diaphragm group 13 is after assembling with glue frame 12, and positioning tab 15 enters
Enter in locating slot 14, to realize the glue frame 12 location to optical diaphragm group 13.Then, liquid crystal indicator presents narrow frame
Development trend, glue frame 12 and backboard 11 thickness constantly reduce, the locating slot 14 of glue frame 12 and the positioning tab of optical diaphragm group 13
Location between 15 is unstable, easily produce optical diaphragm group 13 assemble closed after there is the phenomenon of escape.
Additionally, in backlight module 10, optical diaphragm group 13 can be owing to being subject in the position near backlight (not shown)
The heat that distributed from backlight and produce buckling deformation so that the display brightness of liquid crystal indicator, the uniformity, contrast
Deeply affected by backlight module institute with product key properties such as visible angles.
Summary of the invention
It is an object of the invention to provide a kind of backlight module and display device, in order to overcome above-mentioned blooming piece location with
And cause because of blooming piece rising-heat contracting-cold the display brightness of liquid crystal indicator, the uniformity, contrast with visible angle by shadow
The problem rung.
The present invention provides a kind of backlight module, and this backlight module has framework, and is configured at the blooming inside this framework
Sheet, this blooming piece has side and convexedly stretches in the positioning tab on this side, and this positioning tab is step structure, this ladder
Shape structure includes first surface, the first joint face, second surface and the second joint face being sequentially connected with, this first surface with this
Two surfaces are staggered and not copline mutually, this second surface between this first surface and this side, this second joint face with
This side is connected；This framework has locating slot, and this locating slot, in order to limit this positioning tab, the sidewall of this locating slot has
Bent cantilever；Wherein, when, in this blooming piece of assembling to this framework, this positioning tab enters this locating slot, and this cantilever supports
By this second surface, after this blooming piece is assembled to this framework, bend and fix this cantilever on this sidewall of this locating slot.
As optional technical scheme, also including cushion space, this cushion space is by being formed after bending this cantilever.
As optional technical scheme, also including adhesion layer, this adhesion layer is arranged on this cantilever, and this adhesion layer is for solid
This cantilever fixed is on this framework.
As optional technical scheme, this framework also has draw-in groove, enters this draw-in groove and make this cantilever after the bending of this cantilever
It is fixed in this draw-in groove.
As optional technical scheme, having breach between this cantilever and this sidewall, this breach makes this cantilever and this side
Between wall, part connects, in order to bend this cantilever.
As optional technical scheme, this cantilever is for be formed by elastomeric material.
As optional technical scheme, this cantilever is one-body molded with this framework.
As optional technical scheme, when, in this blooming piece of assembling to this framework, this first surface is against this framework
Inner side.
As optional technical scheme, also including backboard, this backboard is used for accommodating this blooming piece and this framework, this optics
This first surface of diaphragm is against the inner side of this backboard.
The present invention also provides for a kind of display device, and including display unit and backlight module, this display unit is arranged at this back of the body
On the light direction of light module, this backlight module is backlight module as above.
In sum, the present invention by the positioning tab of blooming piece is set to stepped, the locating slot of associated frame members
On bent cantilever is set so that stair-stepping positioning tab is carried out assembling location by cantilever, and after location completes, bending
Cantilever also concedes space, by external force collision for blooming piece or expands with heat and contract with cold and provides cushion space.Therefore, the back of the body of the present invention
The structure of light module, not only increases accuracy and the convenience assembling location, provides the slow of necessity for blooming piece simultaneously
Rush space, with in the face of external force collision or expanded by heating, and then ensure that the optical quality of backlight module.
Accompanying drawing explanation
Fig. 1 is the top view of the backlight module in existing a kind of liquid crystal indicator.
Fig. 2 is the blooming piece schematic diagram in the backlight module of first embodiment of the invention.
Fig. 3 is the block schematic illustration of the backlight module of first embodiment of the invention.
Fig. 4 is the top view of the backlight module of first embodiment of the invention.
Fig. 5 is the top view after the cantilever bending of the blooming piece of the backlight module of first embodiment of the invention.
Fig. 6 be first embodiment of the invention backlight module in blooming piece and framework assemble after partial enlargement signal
Figure.
Fig. 7 be first embodiment of the invention backlight module in blooming piece cantilever bending after schematic diagram.
Fig. 8 be second embodiment of the invention backlight module in blooming piece and framework assemble after partial enlargement signal
Figure.
Fig. 9 be third embodiment of the invention backlight module in blooming piece cantilever bending after schematic diagram.
Figure 10 be fourth embodiment of the invention backlight module in blooming piece and framework assemble after partial enlargement signal
Figure.
Figure 11 be fifth embodiment of the invention backlight module in blooming piece and framework assemble after partial enlargement signal
Figure.
Detailed description of the invention
For making present disclosure to be become apparent from and understands more accurately, will be described in detail with reference to the accompanying drawings now,
The example of embodiments of the invention shown in Figure of description, wherein, identical label represents identical element.
Fig. 2 is the blooming piece schematic diagram in the backlight module of first embodiment of the invention, and Fig. 3 is that the present invention first implements
The block schematic illustration of the backlight module of example, Fig. 4 is the top view of the backlight module of first embodiment of the invention.
Referring to Fig. 2-Fig. 4, backlight module includes, framework 30 and be arranged at the blooming piece 20 inside framework 30,
Blooming piece 20 has side 21 and the positioning tab 22 convexedly stretching on side 21, and positioning tab is step structure, stepped
Structure includes first surface the 23, first joint face 24, second surface 25 and the second joint face 26, the first surface 23 being sequentially connected with
Being staggered mutually with second surface 25 and not copline, second surface 25 is between first surface 23 and side 21, and second connects
Face 26 is connected with side 21；Framework 30 has locating slot 32, locating slot 32 in order to limit positioning tab 22, the of locating slot 32
There is on one sidewall 33 bent cantilever 34；Wherein, when assembling in blooming piece 20 to framework 30, positioning tab 22 enters
In locating slot 32, cantilever 34 is against second surface 25, and after blooming piece 20 is assembled to framework 30, cantilever 34 can be bent and solid
On framework 30.
In the present embodiment, on the first side wall 33 of the locating slot 32 that cantilever 34 is fixed on framework 30 by adhesion layer 36
(shown in Fig. 5), but be not limited thereto and determine.Cantilever 34 has relative upper and lower surface, wherein, the following table of cantilever 34
Face is in the face of the bottom surface 37 of locating slot 32, and has gap between the lower surface of cantilever 34 and bottom surface 37, or, the thickness of cantilever 34
(thickness of cantilever 34 refers to that the upper surface of cantilever 34 is to the distance between lower surface) is less than the height (locating slot 32 of locating slot 32
Height refer on framework 30 thickness direction, the spacing of the upper surface of the bottom surface of locating slot 32 37 to framework 30) so that outstanding
Arm 34 is suspended in locating slot 32.As it is shown on figure 3, the upper surface of the upper surface of cantilever 34 and framework 30 is copline, but not with
This is limited.In other embodiments of the invention, the upper surface of cantilever 34 is non-co-planar with the upper surface of framework 30.
With continued reference to Fig. 3 and Fig. 4, cantilever 34 has the first relative side surface and the second side surface, and the first side surface supports
By the second surface 25 of the positioning tab 22 of blooming piece 20, adhesion layer 36 is arranged on the second side surface, is not limited.?
In other embodiments of the invention, adhesion layer 36 may also be disposed on the end face of cantilever 34, and end face connects the first side surface and
Two side surfaces.In other embodiments of the invention, adhesion layer 36 also may be disposed at the first side wall 33 of locating slot of framework 30
On.
Fig. 5 is the top view after the cantilever bending of the blooming piece of the backlight module of first embodiment of the invention, and Fig. 6 is this
Close-up schematic view after blooming piece and framework assemble in the backlight module of invention first embodiment, Fig. 7 is the present invention the
Schematic diagram after the cantilever of blooming piece bends in the backlight module of one embodiment.
Referring to Fig. 4 to Fig. 7, when assembling in blooming piece 20 to framework 30, the positioning tab 22 of blooming piece 20
In corresponding entrance locating slot 32, and make second surface 25 against the first side surface of cantilever 34；When blooming piece 20 is assembled to
After framework 30, bend cantilever 34, and make the second side surface of cantilever 34 be fixed to the of locating slot 32 by adhesion layer 36
On one sidewall 33.Being positioned blooming piece 20 by cantilever 34 in the present invention, after completing location, bending cantilever 34 makes it
Being fixed on framework 30, and concede space, this space can be used at blooming piece 20 by external force collision, or at backlight
When there is thermal expansion under the influence of heat, it is provided that cushion space.Therefore, bent in present invention cantilever 34 has location merit simultaneously
The dual capability of cushion space and can be provided, and then overcome prior art, it is impossible to location and the offer of blooming piece are provided simultaneously
The problem of cushion space.
Certainly, in a preferred embodiment of the invention, in order to increase the fixing intensity of cantilever 34 and framework 30, adhesion layer
36 can be arranged on above-mentioned second side surface and end face simultaneously.
Fig. 8 be second embodiment of the invention backlight module in blooming piece and framework assemble after partial enlargement signal
Figure, as it can be seen, framework 30 also includes connecting portion 39, connecting portion 39 for connect the relative the first side wall 33 of locating slot 32 with
Second sidewall 38, when, after bending cantilever 34, the second side surface of cantilever 34 is fixed on the first side wall 33 by adhesion layer 36, outstanding
The end face of arm 34 is fixed on the inner side of the connecting portion 39 of framework 30 by adhesion layer 36.
Fig. 9 be third embodiment of the invention backlight module in blooming piece cantilever bending after schematic diagram, as figure institute
Showing, backlight module also includes that backboard 40, backboard 40 are used for housing blooming piece 20 and framework 30, wherein, blooming piece 20 and frame
Frame 30 is arranged at the inner side 41 of backboard 40.In the present embodiment, adhesion layer 36 is arranged at the second side surface and the end of cantilever 34 simultaneously
On face.When, after bending cantilever 34, the second side surface of cantilever 34 is fixed on the first side wall 33 by adhesion layer 36, cantilever 34
End face is fixed on the inner side of backboard 40 by adhesion layer 36.
In above-described embodiment, by adhesion layer 36, cantilever 34 is fixed, can also use in other embodiments of the present invention
Other fixed form such as engages, and positions cantilever 34.
Figure 10 be fourth embodiment of the invention backlight module in blooming piece and framework assemble after partial enlargement signal
Figure.As it can be seen, the connecting portion 39 of framework 30 also includes the first draw-in groove 39A, when, after bending cantilever 34, cantilever 34 enters the first card
In groove 39A so that cantilever 34 is fixed in the first draw-in groove 39A.It is also preferred that the left so that cantilever 34 is limited to first by stable
In draw-in groove 39A, the first draw-in groove 39A also has the first stopper section 39B, and it is used for preventing cantilever 34 escape in the first draw-in groove 39A.
Figure 11 be fifth embodiment of the invention backlight module in blooming piece and framework assemble after partial enlargement signal
Figure, as it can be seen, backlight module also includes that backboard 40, backboard 40 are used for housing blooming piece 20 and framework 30, backboard 40 has
Second draw-in groove 42, when, after bending cantilever 34, cantilever 34 enters in the second draw-in groove 42 so that cantilever 34 is fixed on the second draw-in groove 42
In.It is also preferred that the left so that cantilever 34 is limited in the second draw-in groove 42 by stable, the second draw-in groove 42 also has the second stopper section
43, it is used for preventing cantilever 34 escape in the second draw-in groove 42.
With continued reference to Fig. 3, in the present invention, so that the bending of cantilever 34 is easier to realize, cantilever 34 and locating slot 32
The first side wall 3 between there is breach 35, breach 35 makes between cantilever 34 with the first side wall 33 part be connected, the shape of breach 35
Shape for example, arc, V-type etc..Additionally, cantilever 34 can use elastomeric material to make, such as, have resilient resin, and cantilever 34
Can be one-body molded with framework 30.The bending of cantilever 34, can be carried out by using auxiliary fixture, and such as, tweezers clamping cantilever 34 enters
Row bending.
In blooming piece 20 is assembled to framework 30, the first surface 23 of the positioning tab 22 of blooming piece 20 can be against frame
The inner side (as shown in Figure 8) of the connecting portion 39 of the locating slot 32 on frame 30, or first surface 23 can be against the inner side of backboard 40
41 (as shown in Figure 6).
In the above embodiment of the present invention, blooming piece 20 for example, reflector plate, diffusion sheet or prismatic lens etc..Additionally,
The positioning tab 22 of blooming piece 20 is arranged on a side of blooming piece 20, and quantity is two, but is not limited, location
The quantity of lug 22 and position is set can need according to actual operation and set.Therefore, corresponding to positioning tab on framework 30
The quantity of the locating slot of 22 and position, change also with the change of positioning tab 22.
Certainly, the above-mentioned backlight module that the present invention provides, also include the element such as backlight and light guide plate, backlight is for example,
LED light source, and be preferably arranged at least one side of light guide plate, to form side entrance back module.
The present invention also provides for a kind of display device, and it includes display unit and backlight module, display unit for example, liquid crystal
Display, it is arranged on the light direction of backlight module, and backlight module is first embodiment of the invention in the 5th embodiment
One of them of described backlight module.
In sum, the present invention by the positioning tab of blooming piece is set to stepped, the locating slot of associated frame members
On bent cantilever is set so that stair-stepping positioning tab is carried out assembling location by cantilever, and after location completes, bending
Cantilever also concedes space, by external force collision for blooming piece or expands with heat and contract with cold and provides cushion space.Therefore, the back of the body of the present invention
The structure of light module, not only increases accuracy and the convenience assembling location, provides the slow of necessity for blooming piece simultaneously
Rush space, with in the face of external force collision or expanded by heating, and then ensure that the optical quality of backlight module.
Certainly, the present invention also can have other various embodiments, in the case of without departing substantially from present invention spirit and essence thereof, ripe
Know those skilled in the art and can make various corresponding change and deformation according to the present invention, but these change and deformation accordingly
All should belong to the protection domain of appended claims of the invention.
Claims (10)
1. a backlight module, this backlight module has framework and is configured at the blooming piece inside this framework, it is characterised in that
This blooming piece has side and convexedly stretches in the positioning tab on this side, and this positioning tab is step structure, these rank
Ladder-shaper structure includes first surface, the first joint face, second surface and the second joint face being sequentially connected with, this first surface with should
Second surface is staggered and not copline mutually, this second surface between this first surface and this side, this second joint face
It is connected with this side；
This framework has locating slot, and this locating slot, in order to limit this positioning tab, the sidewall of this locating slot has bent
Cantilever；
Wherein, when, in this blooming piece of assembling to this framework, this positioning tab enters this locating slot, and this cantilever is against this second table
Face, after this blooming piece is assembled to this framework, bends and fixes this cantilever on this sidewall of this locating slot.
2. backlight module as claimed in claim 1, it is characterised in that also including cushion space, this cushion space is by bending
Formed after this cantilever.
3. backlight module as claimed in claim 1, it is characterised in that also including adhesion layer, this adhesion layer is arranged at this cantilever
On, this adhesion layer is used for fixing this cantilever in this framework.
4. backlight module as claimed in claim 1, it is characterised in that this framework also has draw-in groove, enters after the bending of this cantilever
This draw-in groove makes this cantilever be fixed in this draw-in groove.
5. backlight module as claimed in claim 1, it is characterised in that between this cantilever and this sidewall, there is breach, this breach
Part between this cantilever with this sidewall is connected, in order to bend this cantilever.
6. backlight module as claimed in claim 1, it is characterised in that this cantilever is for be formed by elastomeric material.
7. backlight module as claimed in claim 1, it is characterised in that this cantilever is one-body molded with this framework.
8. backlight module as claimed in claim 1, it is characterised in that when, in this blooming piece of assembling to this framework, this is first years old
Surface is against the inner side of this framework.
9. backlight module as claimed in claim 1, it is characterised in that also including backboard, this backboard is used for accommodating this blooming
Sheet and this framework, this first surface of this blooming piece is against the inner side of this backboard.
10. a display device, including display unit and backlight module, it is characterised in that
This display unit is arranged on the light direction of this backlight module, and this backlight module is as any one in claim 1-9
Backlight module described in Xiang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610559527.7A CN106125397A (en) | 2016-07-15 | 2016-07-15 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610559527.7A CN106125397A (en) | 2016-07-15 | 2016-07-15 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106125397A true CN106125397A (en) | 2016-11-16 |
Family
ID=57282801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610559527.7A Pending CN106125397A (en) | 2016-07-15 | 2016-07-15 | Backlight module and display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106125397A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609409A (en) * | 2019-03-06 | 2019-12-24 | 友达光电股份有限公司 | Frame structure and display device with same |
| WO2021057493A1 (en) * | 2019-09-29 | 2021-04-01 | 京东方科技集团股份有限公司 | Backlight module and display apparatus |
| WO2021243569A1 (en) * | 2020-06-02 | 2021-12-09 | 京东方科技集团股份有限公司 | Backlight module, display device and vehicle |
| WO2023202600A1 (en) * | 2022-04-22 | 2023-10-26 | 京东方科技集团股份有限公司 | Display device |
| WO2024031785A1 (en) * | 2022-08-12 | 2024-02-15 | 瑞仪光电(苏州)有限公司 | Backlight module capable of limiting positions of diaphragm and light guide element, and display |
-
2016
- 2016-07-15 CN CN201610559527.7A patent/CN106125397A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609409A (en) * | 2019-03-06 | 2019-12-24 | 友达光电股份有限公司 | Frame structure and display device with same |
| WO2021057493A1 (en) * | 2019-09-29 | 2021-04-01 | 京东方科技集团股份有限公司 | Backlight module and display apparatus |
| US11372152B2 (en) | 2019-09-29 | 2022-06-28 | Hefei Boe Vision-Electronic Technology Co., Ltd. | Backlight module and display device |
| WO2021243569A1 (en) * | 2020-06-02 | 2021-12-09 | 京东方科技集团股份有限公司 | Backlight module, display device and vehicle |
| CN114270250A (en) * | 2020-06-02 | 2022-04-01 | 京东方科技集团股份有限公司 | Backlight module, display device and vehicle |
| CN114270250B (en) * | 2020-06-02 | 2023-05-26 | 京东方科技集团股份有限公司 | Backlight module, display device and vehicle |
| WO2023202600A1 (en) * | 2022-04-22 | 2023-10-26 | 京东方科技集团股份有限公司 | Display device |
| WO2024031785A1 (en) * | 2022-08-12 | 2024-02-15 | 瑞仪光电(苏州)有限公司 | Backlight module capable of limiting positions of diaphragm and light guide element, and display |
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Application publication date: 20161116 |