CN107422538A - A kind of backlight module and its display device - Google Patents
A kind of backlight module and its display device Download PDFInfo
- Publication number
- CN107422538A CN107422538A CN201710828554.4A CN201710828554A CN107422538A CN 107422538 A CN107422538 A CN 107422538A CN 201710828554 A CN201710828554 A CN 201710828554A CN 107422538 A CN107422538 A CN 107422538A
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- CN
- China
- Prior art keywords
- arm
- diaphragm
- backlight module
- edge part
- light guide
- 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.)
- Pending
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Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a kind of backlight module, including：Center, the center include side wall and perpendicular to the side wall and the first horizontally extending arm and below first arm, perpendicular to the side wall and the second horizontally extending arm, cavity is formed between first arm and second arm, the hole for injecting curable glue is offered on first arm；Diaphragm, the diaphragm are located at the lower section of first arm, and the diaphragm includes the pars intermedia between edge part and the edge part, and the edge of the diaphragm is in the cavity；Light guide plate, the diaphragm are located on the light guide plate, and the light guide plate includes the pars intermedia between edge part and the edge part；Gap between the edge part in gap, the diaphragm between first arm and the diaphragm and the side wall is filled with the curable glue.Diaphragm is carried out in this backlight module not against structural member to fix, suitable for making ultra-narrow, ultrathin products.
Description
Technical field
The application is related to display technology field, more particularly to a kind of backlight module and its display device.
Background technology
Backlight module is one of key part and component of panel of LCD, and its illumination effect will directly influence liquid crystal
Show the visual effect of module.Backlight module is mainly by the related device group such as light emitting source, reflector plate, blooming piece, light guide plate, backboard
Into the package assembly of each structure for forming device and each device determines thickness, size, weight and the hair of backlight module
The indexs such as optical property.
At present, in the assembling process of backlight module, the fixation of blooming piece, single locating dowel is often relied on or by single
Only small rack realizes positioning.Common mode is realized by setting rivet post on backboard, and it is fixed to be provided with blooming piece
Position hole, rivet post pass through positioning hole, realize the positioning to blooming piece.In above-mentioned measure, because rivet post is arranged on backboard, need
Backboard appearance is destroyed to realize, and using the mode of small rack, has very big difficulty to design, rear end production operation etc.
Degree.Meanwhile the size of locating dowel or small rack in the product is smaller, when making ultra-narrow, ultrathin products, part dimension can be corresponding
Become smaller, this make it that the changes such as difficulty of processing, operation difficulty are big, therefore the presence of locating dowel or small rack, be unfavorable for being made ultra-narrow,
Ultrathin products.In addition, rivet or support as mechanical fixed part in use, deformation will not be produced, and blooming piece is worked
Occur in journey it is certain expand with heat and contract with cold, produce deformation, therefore, rivet or support are as fixture in use, working as blooming piece
During generation heat expansion, the diaphragm being enclosed on fixture extrudes fixture, and fixture stops that the expansion produces fold, and shrinkage occurs
When, fixture can not also compensate the deformation quantity so that the fixation of blooming piece is not firm, and blooming piece produces displacement, causes light
It is abnormal to learn display.
The content of the invention
Diaphragm is carried out the present invention is intended to provide a kind of backlight module and display device, in backlight module not against structural member to consolidate
It is fixed, the destruction to backboard appearance is avoided, is realized to the flexibly positioned of diaphragm, suitable for making ultra-narrow, ultrathin products.
To achieve these goals, the invention provides a kind of backlight module, it is characterised in that the backlight module bag
Include：Center, the center include side wall and perpendicular to the side wall and the first horizontally extending arms and positioned at described
Below first arm, perpendicular to the side wall and the second horizontally extending arm, between first arm and second arm
Cavity is formed, the hole for injecting curable glue is offered on first arm；Diaphragm, the diaphragm are located at first arm
Lower section, the diaphragm include the pars intermedia between edge part and the edge part, and the edge of the diaphragm is in the cavity
It is interior；Light guide plate, the diaphragm are located on the light guide plate, and the light guide plate includes the centre between edge part and the edge part
Portion；Wherein, the gap between the gap between first arm and the diaphragm, the edge part of the diaphragm and the side wall is filled out
Filled with the curable glue, the diaphragm and the center are adhesively fixed.
Further, second arm is shorter in length than first arm, the edge part of the light guide plate and described second
Have the gap between gap, the edge part of the light guide plate and the side wall and second arm can filled with described between arm
Solidification glue, the light guide plate is adhesively fixed in the center.By the way that light guide plate and center are adhesively fixed into realization to leaded light
The fixation of plate.
Further, second arm is shorter in length than first arm, the edge part of the light guide plate and described second
There is gap between arm, have close to the edge part of the diaphragm of the light guide plate and stretched relative to the edge part of the light guide plate
The extension gone out, the curable glue is filled between the lower surface of the extension and second arm.
Further, it is flexible after the curable glue solidification.Curable glue after solidification is connected with diaphragm, its elasticity
Characteristic has reserved the space of deformation for the expansion and contraction of diaphragm, that is, realizes the flexible fastening to diaphragm, avoid diaphragm from thus producing
Raw fold and displacement.
Further, the curable glue is UV glue.
Further, the hole is counter sink.
Further, the curable glue is irradiated by ultraviolet realizes solidification.
Further, the lower surface of first arm is provided with arc guiding gutter.
Further, the arc guiding gutter is disposed in proximity to the end of first arm.
Present invention also offers a kind of display device, the display device includes panel and above-mentioned backlight module.
Compared with prior art, diaphragm is adhesively fixed in by backlight module of the invention using the curable glue of injection
Frame, the fixation to diaphragm being realized, this fixation is no longer rely on structural mount, avoids the destruction to backboard appearance, meanwhile,
Because structural mount need not be made, therefore by the less-restrictive of product size size, produced beneficial to the compact such as ultra-narrow, ultra-thin is made
Product；In addition, the elastic characteristic of the curable glue after solidification is absorbable or compensating diaphragm expands with heat and contract with cold caused deformation quantity, realize pair
Diaphragm it is flexibly positioned, avoid diaphragm that fold or displacement occurs.
Brief description of the drawings
Fig. 1 is the structural representation of the backlight module of the embodiment of the present invention one；
Fig. 2 is the structural representation of the backlight module of embodiment two.
Embodiment
It should be understood that embodiment described herein is used only for explaining the present invention, it is not used to limit this hair
It is bright.
Below in conjunction with accompanying drawing, the display device of the present invention is described in detail, in addition to the structure shown in figure, also
Including at least backlight, reflector plate etc., on other compositions of the display device of the embodiment of the present invention, those skilled in the art can
With reference to the concrete structure of disclosed display device in the prior art, the present invention is not limited this.
Fig. 1 is according to embodiments of the present invention one display device structure schematic diagram.As shown in figure 1, display device includes face
Plate 100 and backlight module.Backlight module includes backboard 201, light guide plate 202, diaphragm 203 and center 204.Backboard 201, light guide plate
202nd, diaphragm 203 stacks gradually.Center 204 includes side wall 204a and perpendicular to the side wall and horizontally extending first
Arm 204b and the second arm 204c extended below the first arm 204b, perpendicular to the side wall, horizontal direction.With reference to
Fig. 1 can be seen that, protrude between side wall 204a the first arm 204b and the second arm 204c formed with cavity S.Diaphragm 203 is located at institute
The first arm 204b lower section is stated, diaphragm 203 includes the pars intermedia between edge part 203a and edge part（Do not mark）, edge part 203a
In cavity S.Light guide plate 202 positioned at the lower section of diaphragm 203 also includes the pars intermedia between edge part 202a and edge part（Not
Mark）.First arm 204b includes upper and lower surface, offers hole 204h thereon, and hole 204h is used to inject curable glue 205,
After injection terminates, curable glue 205 solidifies.Curable glue 205 is filled in the first arm 204 and diaphragm it can be seen from Fig. 1
Gap between the edge part 203a and side wall 204a in gap and diaphragm between 203, thus, during diaphragm 203 is bonded in
On frame 204, i.e., by diaphragm and fixed structure piece be adhesively fixed, realize the fixation to diaphragm.The fixed form is to pass through
The mode of curable glue realizes fixation to diaphragm by adhesive effect, it is no longer necessary to rivet post or small rack are set on backboard
Fixture, the destruction to backboard appearance is avoided, meanwhile, because being not required to additionally set fixture, the part of backlight module adds
Work difficulty, production operation difficulty reduce, and tend to miniaturization, ultrathin beneficial to part, therefore be suitable for the compact such as ultra-narrow, ultra-thin
Product.
The present invention is in flow-like or glue before solidifying because of curable glue, therefore can follow by the way of curable glue is injected
The structural form of structural member forms solidification colloid, ensure that gap area or narrow zone also can obtain between center and diaphragm
Filling so that the bonding between diaphragm and center is more reliable, more firm, and then realizes the good fixation of diaphragm, while this side
Method is simple to operate, convenient to carry out.
Preferably, with reference to shown in Fig. 1, the second arm 204c's is shorter in length than the first arm 204b, and curable glue is filled in
Gap between the edge part 202a of the light guide plate 202 and second arm, light guide plate 202 is adhesively fixed in center
204.The fixation realized by the way that light guide plate and center are adhesively fixed to light guide plate.
Curable glue 205 is entered in gap under gravity and pressure effect, is realized and is fixed after solidification.Injected by controlling
Amount etc., to realize different fixations.
Hole 204h is preferably counter sink, and this pore structure is more convenient the injection of curable glue.
Further, flexible after curable glue solidification, its elastic characteristic can realize the flexible fastening to diaphragm.Because solid
Curable glue after change is between diaphragm and/or light guide plate and center, and when diaphragm 203 is because of thermal expansion, solidification glue can absorb
Deformation quantity caused by diaphragm expansion, there is provided the space of expansion suppresses to expand simultaneously, and when diaphragm 203 shrinks, because of diaphragm and can
Adhesive effect between solidification glue, deformation quantity caused by contraction can be compensated, in the process, diaphragm is still reliably fixed,
Fold and displacement are avoided, ensure that display effect.Correspondingly, the dilation also to light guide plate has reserved natural space, real
Show to its flexible fastening.
Wherein, optic-solidified adhesive, heat-curable glue etc. may be selected in curable glue.In view of its usage scenario, curable glue 205 is excellent
Select UV glue, UV glue be it is a kind of by ultraviolet light irradiation and the adhesive that solidifies, because diaphragm 203 is guide-lighting knot in backlight module
Structure, thus carry out it is UV radiation curing when, the UV glue of narrow corners can also realize good solidification, better assure that diaphragm
It is fixed.
In the present invention, composition display device is adhesively fixed by panel glue band 300 between the arm 204b of panel 100 and first.
Fig. 2 is according to embodiments of the present invention two display device structure schematic diagram, and it enters one to the display device shown in Fig. 1
Step is improved.In addition to the basic structure shown in Fig. 1, in order to prevent UV glue from being overflowed in injection process, the of center 204
One arm 204b lower surface design has arc guiding gutter 206, and preferably arc guiding gutter 206 is disposed in proximity to the first arm 204b end
At end, prevent the curable glue 205 of injection from overflowing outside the first arm 204b, prevent excessive glue from influenceing the normal work of diaphragm.Arc is led
For radian of chute etc. to influence the factor of the excessive effect of resistance, those skilled in the art can optimize use as needed.
Further, the second arm 204c is shorter in length than the first arm 204b, the edge part 202a and the second arm of light guide plate 202
There is gap between 204b, there is the edge relative to light guide plate 202 close to the edge part of the diaphragm of the light guide plate 202
The extension 203b that portion is stretched out, because the edge part 203a of diaphragm 203 be located in cavity S, the curable glue 205 of injection gravity with
When being flowed under pressure effect, because the stop by extension 203b changes path, pass through extension 203b and the second arm 204c
Between gap enter, as shown in Fig. 2 filled with described curable between extension 203b lower surface and the second arm 204c
Glue, the bonding contact area of diaphragm is thereby increased, realizes more reliable fixation.
In order to further illustrate use situation of the curable glue 205 in backlight module, Fig. 2 will be combined to the institute of embodiment two
The part assembling process for the display device shown illustrates.First, light guide plate 202, diaphragm 203 are sequentially laminated on backboard 201
On, then, center 204 is assembled, offer hole 204h on the first arm 204b of center 204, then, by hole 204h by UV glue
205 injections, make to be filled with UV glue in the cavity between center 204 and diaphragm 203, light guide plate 202 and slit, next enter purple
Link is irradiated in outside line, through irradiation after a while, UV adhesive curings.The finally plate placement on the first arm 204b of center 204
100, it is adhesively fixed between panel 100 and support arm 204b by panel glue band 300, completes the assembling of display device.
It the above is only the embodiment of the present invention, it is noted that come for those skilled in the art
Say, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of backlight module, it is characterised in that the backlight module includes：
Center, the center include side wall and perpendicular to the side wall and the first horizontally extending arms and positioned at described
Below first arm, perpendicular to the side wall and the second horizontally extending arm, between first arm and second arm
Cavity is formed, the hole for injecting curable glue is offered on first arm；
Diaphragm, the diaphragm is located at the lower section of first arm, during the diaphragm is included between edge part and the edge part
Between portion, the edge of the diaphragm is in the cavity；
Light guide plate, the diaphragm are located on the light guide plate, during the light guide plate is included between edge part and the edge part
Between portion；
Wherein, the gap between the gap between first arm and the diaphragm, the edge part of the diaphragm and the side wall
Filled with the curable glue, the diaphragm and the center are adhesively fixed.
2. backlight module as claimed in claim 1, it is characterised in that second arm is shorter in length than first arm, institute
Stating has gap between the edge part of light guide plate and second arm, the edge part of the light guide plate and the side wall and described the
Gap between two arms is filled with the curable glue, and the light guide plate and the center are adhesively fixed.
3. backlight module as claimed in claim 1, it is characterised in that second arm is shorter in length than first arm, institute
Stating has gap between the edge part of light guide plate and second arm, the edge part close to the diaphragm of the light guide plate has
The extension stretched out relative to the edge part of the light guide plate, is filled between the lower surface of the extension and second arm
The curable glue.
4. the backlight module as described in claim any one of 1-3, it is characterised in that there is bullet after the curable glue solidification
Property.
5. backlight module as claimed in claim 1, it is characterised in that the curable glue is UV glue.
6. backlight module as claimed in claim 1, it is characterised in that the hole is counter sink.
7. backlight module as claimed in claim 1, it is characterised in that the curable glue is realized solid by ultraviolet irradiation
Change.
8. backlight module as claimed in claim 1, it is characterised in that first arm includes upper and lower surface, described
The lower surface of first arm is provided with arc guiding gutter.
9. backlight module as claimed in claim 8, it is characterised in that the arc guiding gutter is disposed in proximity to first arm
End.
10. a kind of display device, it is characterised in that the display device is included described in panel and claim any one of 1-9
Backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710828554.4A CN107422538A (en) | 2017-09-14 | 2017-09-14 | A kind of backlight module and its display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710828554.4A CN107422538A (en) | 2017-09-14 | 2017-09-14 | A kind of backlight module and its display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107422538A true CN107422538A (en) | 2017-12-01 |
Family
ID=60432350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710828554.4A Pending CN107422538A (en) | 2017-09-14 | 2017-09-14 | A kind of backlight module and its display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107422538A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018003A (en) * | 2018-01-03 | 2018-05-11 | 京东方科技集团股份有限公司 | A kind of shading rubber belt and display device |
| CN108303815A (en) * | 2018-01-26 | 2018-07-20 | 惠州市华星光电技术有限公司 | Display module and display device |
| CN108563057A (en) * | 2018-04-24 | 2018-09-21 | 武汉华星光电技术有限公司 | Liquid crystal display device structure |
| CN109975916A (en) * | 2019-03-19 | 2019-07-05 | 惠州市宝明精工有限公司 | A kind of backlight module improving light guide board fixing structure |
| CN110133907A (en) * | 2019-04-02 | 2019-08-16 | 深圳康佳电子科技有限公司 | A kind of Mini-LED backlight module, display screen and TV |
| CN110347293A (en) * | 2019-07-18 | 2019-10-18 | 业成科技（成都）有限公司 | The fitting processing procedure of touch device |
| CN110568667A (en) * | 2019-09-17 | 2019-12-13 | 京东方科技集团股份有限公司 | backlight module and display device |
| US10698152B2 (en) | 2018-01-26 | 2020-06-30 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Manufacturing method of display module suitable for fast curing of glue and easy for rework |
| CN111722425A (en) * | 2019-03-19 | 2020-09-29 | 鸿富锦精密工业（深圳）有限公司 | Display device, preparation method thereof and electronic equipment |
| CN114839814A (en) * | 2022-07-05 | 2022-08-02 | 惠科股份有限公司 | Backlight module, display device and assembling method of display device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018003A (en) * | 2018-01-03 | 2018-05-11 | 京东方科技集团股份有限公司 | A kind of shading rubber belt and display device |
| US10698152B2 (en) | 2018-01-26 | 2020-06-30 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Manufacturing method of display module suitable for fast curing of glue and easy for rework |
| CN108303815A (en) * | 2018-01-26 | 2018-07-20 | 惠州市华星光电技术有限公司 | Display module and display device |
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| CN108563057A (en) * | 2018-04-24 | 2018-09-21 | 武汉华星光电技术有限公司 | Liquid crystal display device structure |
| CN108563057B (en) * | 2018-04-24 | 2020-12-22 | 武汉华星光电技术有限公司 | Liquid crystal display structure |
| CN111722425A (en) * | 2019-03-19 | 2020-09-29 | 鸿富锦精密工业（深圳）有限公司 | Display device, preparation method thereof and electronic equipment |
| CN109975916A (en) * | 2019-03-19 | 2019-07-05 | 惠州市宝明精工有限公司 | A kind of backlight module improving light guide board fixing structure |
| CN110133907A (en) * | 2019-04-02 | 2019-08-16 | 深圳康佳电子科技有限公司 | A kind of Mini-LED backlight module, display screen and TV |
| CN110347293A (en) * | 2019-07-18 | 2019-10-18 | 业成科技（成都）有限公司 | The fitting processing procedure of touch device |
| CN110347293B (en) * | 2019-07-18 | 2022-04-22 | 业成科技（成都）有限公司 | Bonding process of touch device |
| CN110568667A (en) * | 2019-09-17 | 2019-12-13 | 京东方科技集团股份有限公司 | backlight module and display device |
| CN110568667B (en) * | 2019-09-17 | 2022-06-07 | 高创(苏州)电子有限公司 | Backlight module and display device |
| CN114839814A (en) * | 2022-07-05 | 2022-08-02 | 惠科股份有限公司 | Backlight module, display device and assembling method of display device |
| US11892730B2 (en) | 2022-07-05 | 2024-02-06 | HKC Corporation Limited | Backlight module, display device and method of assembling display device |
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Application publication date: 20171201 |
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