CN107340630A - Backlight module, mobile terminal, display device and preparation method thereof - Google Patents
Backlight module, mobile terminal, display device and preparation method thereof Download PDFInfo
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- CN107340630A CN107340630A CN201710631019.XA CN201710631019A CN107340630A CN 107340630 A CN107340630 A CN 107340630A CN 201710631019 A CN201710631019 A CN 201710631019A CN 107340630 A CN107340630 A CN 107340630A
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- backlight module
- framework
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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)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a kind of backlight module, mobile terminal, display device and preparation method thereof.Specifically, the present invention proposes a kind of backlight module, including：Framework；Bottom reflector plate, the bottom reflector plate are arranged on the framework bottom；Light guide plate, the light guide plate are arranged on side of the bottom reflector plate away from the framework bottom；Optical film, the optical film are arranged on side of the light guide plate away from the bottom reflector plate；Release membrane module, the release membrane module is arranged on the top of the framework, and the release membrane module forms confined space with the framework.The backlight module can effectively hinder the entrance of dust.
Description
Technical field
The present invention relates to display technology field, in particular it relates to backlight module, mobile terminal, display device and its preparation
Method.
Background technology
Liquid crystal display device because its small volume, it is low in energy consumption, radiationless the advantages that be widely used in the aobvious of electronic equipment
In showing device, for example, mobile phone screen, computer screen etc..Liquid crystal can't light in itself, and it relies on liquid crystal display panel
(LCD) backlight module of behind provides light source for it, and its image shown is its result to light modulation.The quality of backlight module
There is material impact for the display effect of display device, the backlight illumination that can be provided such as backlight module, even back degree,
The final display effect of display device can be influenceed.And if dust, foreign matter entry of backlight module, then it can cause liquid crystal display
Device contrast declines, screen intensity declines or even causes image to show the problems such as fuzzy.
Thus, the research on backlight module, mobile terminal, display device and preparation method thereof at present still has much room for improvement.
The content of the invention
The present invention is based on inventor couple on the fact that being made with the discovery of problem and understanding：
After inventor's discovery, current display device, generally existing backlight module and liquid crystal display panel (LCD) assembling,
Show the problem of reliability is relatively low.For example, after failtests, easily there is the problems such as white group, white point in display device.Invention
People has found that, mainly due in liquid crystal display device, LCD and backlight module are two for this by further investigation and many experiments
Independent part assembles again afterwards, it is necessary to which it is manufactured respectively.During manufacture, assembling, it is to be ensured that LCD and the back of the body
The cleaning of optical mode group, prevents dust from entering.Due to being packaged with liquid crystal molecule in LCD, therefore LCD package reliability is higher, no
Easily enter the foreign matters such as dust before assembling.Backlight module surface is usually provided with strippable mould release membrance, to protect backlight module
In optical film it is not contaminated, but the sealing of mould release membrance has much room for improvement, and has in turn resulted in backlight module, is usually assembled in transport
Deng during, by foreign substance pollutions such as dust, the reliability decrease of display device is in turn resulted in.Thereby, it is ensured that backlight module is being made
Cleaning during making, transport and assembling is a critically important technical problem.
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
In one aspect of the invention, the present invention proposes a kind of backlight module.The backlight module includes：Framework；Bottom is anti-
Piece is penetrated, the bottom reflector plate is arranged on the framework bottom；Light guide plate, the light guide plate are arranged on the bottom reflector plate away from institute
State the side of framework bottom；Optical film, the optical film are arranged on side of the light guide plate away from the bottom reflector plate；It is release
Membrane module, the release membrane module is arranged on the top of the framework, and the release membrane module and framework composition are closed
Space.Thus, the backlight module can effectively hinder the entrance of dust.
According to an embodiment of the invention, framework described in the backlight module includes quadrangular bottom, and 4 sides
Frame, the side frame are arranged on the edge of the quadrangular bottom, wherein, 4 side frames include two along first party
To the side frame of setting, and two side frames set in a second direction, the first direction is perpendicular to the second direction.
Thus, the framework effectively can support and protect the backlight module.
According to an embodiment of the invention, the release membrane module and the side frame of the framework form the confined air
Between.Thus, it is possible to the impurity such as dust are preferably avoided to enter inside framework.
According to an embodiment of the invention, the release membrane module includes：Mould release membrance；Glue-line, the glue-line are arranged on described
On mould release membrance, wherein, the glue-line contacts with the framework.Thus, the release membrane module can with the framework bond from
And hinder the entrance of dust.
According to an embodiment of the invention, the glue-line is formed by least one of optical cement and double faced adhesive tape.Thus,
The glue-line abundance, is readily available, and then can reduce production cost.
According to an embodiment of the invention, it is close by the glue-line between the release membrane module and 4 side frames
Envelope.Thus, the release membrane module can more efficiently bond with the side frame.
According to an embodiment of the invention, the glue-line covers the part surface product of the mould release membrance.
According to an embodiment of the invention, the release membrane module with along the first direction set the side frame it
Between, sealed by shading glue；The release membrane module and along the second direction set the side frame between, by described
Glue-line seals.Thus, four frames of the framework, which are obtained for, effectively seals against, so the backlight module can hinder dust etc.
The entrance of foreign matter, improve the performance of product.
According to an embodiment of the invention, the release membrane module further comprises：Second mould release membrance, second mould release membrance
Side of the glue-line away from the mould release membrance is arranged on, second mould release membrance is arranged in the confined space.Thus, institute
The glue-line and the optical film can effectively be separated by stating the second mould release membrance, make the performance of the optical film not by described
The influence of release membrane module.
According to an embodiment of the invention, the cross-sectional area of second mould release membrance, not less than the optical film cross section
Surface area.Thus, it is possible to it will effectively be isolated between glue-line and optical film.
According to an embodiment of the invention, the thickness of second mould release membrance, no more than the optical film top with it is described
Difference in height between the top of framework.Thus, it is possible to improve the surface smoothness of the backlight module, be advantageous to transport and deposit
Storage.
According to an embodiment of the invention, the optical film includes at least one of following structure：Diffusion barrier and anti-reflection film.
Thus, the optical film can improve light luminance, the soft dispersion of light for projecting light guide plate, the face for providing the backlight module
Light source is more uniform, thus improves the performance of the backlight module.
In another aspect of this invention, the present invention proposes a kind of display device, according to an embodiment of the invention, the display
Device includes：Backlight assembly, the backlight assembly are formed by above-described backlight module；And display panel, it is described
Display panel is arranged on the backlight module.Thus, the display device has complete possessed by previously described backlight module
Portion's feature and advantage, will not be repeated here.
In still another aspect of the invention, the present invention proposes a kind of mobile terminal, according to an embodiment of the invention, the shifting
Dynamic terminal includes foregoing display device.
In still another aspect of the invention, the present invention proposes a kind of method for preparing foregoing display device, according to
Embodiments of the invention, this method include：Display panel is provided；Backlight module and the display panel are aligned, removed
Mould release membrance group in the backlight module is simultaneously assembled with the display panel, to obtain the display device.Thus, may be used
Effectively to prevent backlight module from advancing into the foreign matters such as dust with what display panel assemble, and then it can improve and utilize the party
The performance of display device prepared by method.
Brief description of the drawings
Fig. 1 shows the cross-sectional view of backlight module according to an embodiment of the invention；
Fig. 2 shows the frame structure schematic diagram of backlight module according to an embodiment of the invention；
Fig. 3 shows the cross-sectional view of the backlight module according to another embodiment of the invention；
Fig. 4 shows the structural representation of mould release membrance group according to an embodiment of the invention；
Fig. 5 shows the structural representation of mould release membrance group in accordance with another embodiment of the present invention；
Fig. 6 shows the cut-away section structural representation of backlight module according to an embodiment of the invention；
Fig. 7 shows the cut-away section structural representation of the backlight module according to another embodiment of the invention；And
Fig. 8 shows the part-structure schematic diagram of the backlight module of prior art；
Fig. 9 shows the method flow diagram of preparation display device according to an embodiment of the invention.
Description of reference numerals：
100：Backlight module；110：Framework；10：Bottom surface；20：Frame；21：The frame set in the first direction；22：Along
The frame that two directions are set；120：Bottom reflector plate；130：Light guide plate；140：Optical film；70：Upper anti-reflection film；80：Lower anti-reflection film；
90：Diffusion barrier；150：Release membrane module；30：Mould release membrance；40：Glue-line；50：Second mould release membrance；60：Shading glue；160：Plastic cement；
200：Display panel；300：Backlight assembly；1000：Display device.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In one aspect of the invention, the present invention proposes a kind of backlight module 100.According to an embodiment of the invention, join
Fig. 1 is examined, the backlight module 100 includes：Framework 110, bottom reflector plate 120, light guide plate 130, optical film 140 and release membrane module
150.According to an embodiment of the invention, bottom reflector plate 120 is arranged on the bottom of framework 110, and light guide plate 130 is arranged on bottom reflector plate
The side of 120 bottoms away from framework 110, optical film 140 is arranged on side of the light guide plate 130 away from bottom reflector plate 120, release
Membrane module 150 is arranged on the top of framework 110, and forms confined space with framework 110.Thus, the backlight module 100 can be with
Effectively hinder the entrance of the foreign matters such as dust.
According to an embodiment of the invention, include with reference to figure 2, the framework 110 of the backlight module 100：Quadrangular bottom 10 with
And 4 side frames 20.Side frame 20 is arranged on the edge of quadrangular bottom 10, and side frame 20 includes 2 along first party
The side frame 22 set in a second direction to the side frame 21 of setting and 2, first direction (the A side as shown in Figure 2
To) and second direction (B directions as shown in Figure 2) it is orthogonal.Thus, the framework 110 effectively can be supported and protected
The backlight module 100.It will be appreciated to those of skill in the art that in the present invention, " first direction ", " second direction " are only
The setting direction of difference side frame 22, and first direction, second direction can exchange.
In order to facilitate understanding, prevent the foreign matters such as dust from entering backlight module 100 according to embodiments of the present invention first below
The principle entered is briefly described：
According to an embodiment of the invention, it will be appreciated to those of skill in the art that current display screen, is particularly used
In the display screen of the mobile terminals such as mobile phone, the generally frame along left and right (long side direction of screen) direction of mobile phone is narrower, and
Upper and lower frame (i.e. the short side direction of screen), due to needing to set the part such as front camera and function key, have thicker
Frame.In addition, the cabling such as array base palte in display screen, is also concentrated on the upper and lower side frame direction of display screen.Therefore, join
Examine Fig. 7, the side frame 21 of backlight module (i.e. A directions in Fig. 2) in the first direction is usual apart from 130 isostructural distance of light guide plate
It is wider, thus can be in a first direction side frame 21 on injection moulding plastic 160, on plastic cement 160 paste shading glue 60 so that from
The side frame 21 of type film 30 and first direction seals.But the distance of side frame 22 in (i.e. B directions in Fig. 2) is led in a second direction
130 isostructural distance of tabula rasa is generally very narrow, with reference to figure 8, therefore current backlight module, at side frame 22 in a second direction
Plastic cement 160 can not be produced by being molded, thus shading glue 60 can not be pasted on plastic cement 160.Due to side in a second direction
Frame 22 does not have shading glue 60, therefore is unlimited between mould release membrance 30 and framework 110, in the assembling, detection, fortune of backlight module
It may all enter the foreign matter such as dust before defeated and LCD and backlight module assembling, cause to occur in display device bright spot, bright line, in vain
Group etc., make the hydraulic performance decline of display device.According to an embodiment of the invention, release membrane module 150 is used with reference to figure 6, the application
Substitute single mould release membrance, so can on the premise of plastic cement 160 is not set up, realize release membrane module 150 and framework 110 it
Between sealing, prevent dust entry of backlight module internal.
Below according to the specific embodiment of the present invention, the concrete structure of release membrane module 150 is described in detail：
According to an embodiment of the invention, include with reference to figure 3, the release membrane module 150 of the backlight module 100：Mould release membrance 30
And glue-line 40, glue-line 40 are arranged on mould release membrance 30, and glue-line 40 contacts with framework 110.Thus, release membrane module 150
It can effectively be bonded by glue-line 40 with the side frame 20 of framework 110 and form confined space, the confined space can be effectively
Hinder the entrance of the foreign matters such as dust.Because glue-line 40 is provided in mould release membrance 30 close to the side of optical film 140, it is therefore not necessary to
Additionally plastic structure for setting shading glue is formed in the side-walls of framework 110.Thus, it is possible to space more under it is narrow
On left and right direction (B directions i.e. as illustrated in FIG. 2), the sealing between mould release membrance and framework 110 is also realized.According to this hair
Bright embodiment, the specific material of glue-line 40 are not particularly limited, and those skilled in the art can be selected according to the actual requirements
Select.Such as at least one of optical cement and double faced adhesive tape.Thus, the abundance of the glue-line 40, is readily available, can be further
Reduce the production cost of product.
According to an embodiment of the invention, is still further comprised with reference to figure 3, the release membrane module 150 of the backlight module 100
Two mould release membrances 50, the second mould release membrance 50 is arranged on side of the glue-line 40 away from mould release membrance 30, and the second mould release membrance 50 is arranged on
In the confined space that glue-line 40 is formed with side frame 20.According to an embodiment of the invention, the cross-sectional area of the second mould release membrance 50 is not
Less than the surface area of the cross section of optical film 140.Thus, the second mould release membrance 50 can effectively separate glue-line 40 and optical film 140,
Therefore, by the backlight module, when being assembled with LCD, release membrane module 150 subsequently can be easily peeled, and without load
Heart glue-line 40 can be bonded on optical film 140.Thus, it is possible to avoid glue-line 40 from producing residual on optical film 140, and influence optics
The performance of film 140.According to an embodiment of the invention, the thickness of the second mould release membrance 50, can be not more than optical film 140 top with
Difference in height between the top of framework 110.Thus, second mould release membrance 50 can improve the surface smoothness of the backlight module,
Be advantageous to transport and store.
According to an embodiment of the invention, the side frame set with reference to figure 4 and Fig. 5, release membrane module 150 with first direction
It can be sealed by shading glue 60 between 21, and can led between the side frame 22 that release membrane module 150 and second direction are set
Glue-line 40 is crossed to seal.In other words, glue-line 40 covers the part surface product of mould release membrance 30.Thus, the mould release membrance 30 and framework 110
4 side frames 20 can be formed with effect sealing, and then effectively prevent the backlight module 100 assembling, detection, transport
And the entrance with the foreign matter such as dust in LCD assembling process, substantially increase the performance of backlight module 100.
Or other embodiments according to the present invention, with reference to figure 6, the release membrane module 150 of backlight module 100 and 4
All it can also be sealed between side frame 20 by glue-line 40, thus, release membrane module 150 can effectively bond with side frame 20, from
And the foreign matters such as dust are prevented to enter mould release membrance packaging body 100.
According to an embodiment of the invention, in order to further improve the performance of the backlight module 100, with reference to figure 3, the back of the body
The optical film 140 of optical mode group 100 can further include：Upper anti-reflection film 70, lower anti-reflection film 80 and diffusion barrier 90 are at least
One of.According to an embodiment of the invention, diffusion barrier 90 is arranged on the bottom of optical film 140, upper anti-reflection film 70 and lower anti-reflection film 80
It is arranged on side of the diffusion barrier 90 away from the bottom of optical film 140.Diffusion barrier 90 can correct the angle of backlight so that light source passes through
As area is bigger, the uniformity is more preferable, the secondary souce of chroma stability after the diffusion of diffusion barrier 90.Upper anti-reflection film 70 and lower anti-reflection film
80 can change the polarization light of all directions its direction of propagation projects for vertical direction, sees the vertical light guide plate surface of human eye
It is most bright up.Thus, anti-reflection film 70, lower anti-reflection film 80 and diffusion barrier 90 can improve making for the backlight module 100 on this
Use performance.
In another aspect of this invention, the present invention proposes a kind of display device.According to an embodiment of the invention, the display
Device includes：Backlight assembly and display panel, and backlight assembly is formed by backlight module recited above, display surface
Plate is arranged on backlight assembly.Thus, the display device have whole features possessed by previously described backlight module and
Advantage, it will not be repeated here.It will be appreciated to those of skill in the art that previously described backlight module, removes mould release membrance group
After part, the backlight module of display device as according to embodiments of the present invention.
In still another aspect of the invention, the present invention proposes a kind of mobile terminal, and the mobile terminal includes previously described
Display device.Thus, the mobile terminal has whole features and advantage possessed by previously described display device, herein not
Repeat again.
In still another aspect of the invention, the present invention proposes a kind of method for preparing display device.With reference to (a) in figure 9,
This method includes：Display panel 200 is provided, and backlight module 100 and display panel 200 are aligned.Then, backlight is removed
Release membrane module 150 in module 100 is simultaneously assembled (with reference to (b) in figure 9) with display panel 200, to be shown
Device 1000.Thus, it is possible to effectively prevent backlight assembly 300 with display panel 200 assemble to advance into dust etc. different
Thing, and then the performance of the display device 1000 prepared using this method can be improved.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Claims (15)
- A kind of 1. backlight module, it is characterised in that including：Framework；Bottom reflector plate, the bottom reflector plate are arranged on the framework bottom；Light guide plate, the light guide plate are arranged on side of the bottom reflector plate away from the framework bottom；Optical film, the optical film are arranged on side of the light guide plate away from the bottom reflector plate；Release membrane module, the release membrane module are arranged on the top of the framework, and the release membrane module and the framework Form confined space.
- 2. backlight module according to claim 1, it is characterised in that the framework includes quadrangular bottom, and 4 sides Frame, the side frame are arranged on the edge of the quadrangular bottom,Wherein, 4 side frames include two side frames set in the first direction, and two are set in a second direction Side frame, the first direction is perpendicular to the second direction.
- 3. backlight module according to claim 2, it is characterised in that the release membrane module and the side of the framework Frame forms the confined space.
- 4. backlight module according to claim 1, it is characterised in that the release membrane module includes：Mould release membrance；Glue-line, the glue-line are arranged on the mould release membrance,Wherein, the glue-line contacts with the framework.
- 5. backlight module according to claim 4, it is characterised in that the glue-line be by optical cement and double faced adhesive tape extremely One of few formation.
- 6. the backlight module according to claim 3 or 4, it is characterised in that the release membrane module and 4 side frames Between, sealed by the glue-line.
- 7. backlight module according to claim 4, it is characterised in that the glue-line covers the part surface of the mould release membrance Product.
- 8. the backlight module according to claim 3 or 7, it is characterised in that the release membrane module with along the first party To between the side frame of setting, sealed by shading glue；The release membrane module and along the second direction set the side frame between, sealed by the glue-line.
- 9. backlight module according to claim 4, it is characterised in that the release membrane module further comprises：Second mould release membrance, second mould release membrance are arranged on side of the glue-line away from the mould release membrance, and described second is release Film is arranged in the confined space.
- 10. backlight module according to claim 9, it is characterised in that the cross-sectional area of second mould release membrance is not small Surface area in the optical film cross section.
- 11. backlight module according to claim 9, it is characterised in that the thickness of second mould release membrance, no more than described Difference in height between the top of optical film and the top of the framework.
- 12. backlight module according to claim 1, it is characterised in that the optical film include following structure at least it One：Diffusion barrier and anti-reflection film.
- A kind of 13. display device, it is characterised in that including：Backlight assembly, the backlight assembly are formed as the backlight module described in claim any one of 1-12；AndDisplay panel, the display panel are arranged on the backlight assembly.
- 14. a kind of mobile terminal, the mobile terminal includes the display device described in claim 13.
- A kind of 15. method for preparing the display device described in claim 13, it is characterised in that including：Display panel is provided；Backlight module and the display panel are aligned, remove mould release membrance group in the backlight module and with the display Panel is assembled, to obtain the display device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631019.XA CN107340630A (en) | 2017-07-28 | 2017-07-28 | Backlight module, mobile terminal, display device and preparation method thereof |
| PCT/CN2018/091453 WO2019019833A1 (en) | 2017-07-28 | 2018-06-15 | Backlight module, electronic device, display apparatus and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631019.XA CN107340630A (en) | 2017-07-28 | 2017-07-28 | Backlight module, mobile terminal, display device and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107340630A true CN107340630A (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710631019.XA Pending CN107340630A (en) | 2017-07-28 | 2017-07-28 | Backlight module, mobile terminal, display device and preparation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107340630A (en) |
| WO (1) | WO2019019833A1 (en) |
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| WO2019019833A1 (en) * | 2017-07-28 | 2019-01-31 | Oppo广东移动通信有限公司 | Backlight module, electronic device, display apparatus and manufacturing method therefor |
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| WO2019019833A1 (en) * | 2017-07-28 | 2019-01-31 | Oppo广东移动通信有限公司 | Backlight module, electronic device, display apparatus and manufacturing method therefor |
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Application publication date: 20171110 |