CN110174799A - A kind of backlight module and display device of high screen accounting - Google Patents
A kind of backlight module and display device of high screen accounting Download PDFInfo
- Publication number
- CN110174799A CN110174799A CN201910417528.1A CN201910417528A CN110174799A CN 110174799 A CN110174799 A CN 110174799A CN 201910417528 A CN201910417528 A CN 201910417528A CN 110174799 A CN110174799 A CN 110174799A
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- light
- shielding structure
- hole
- backboard
- backlight module
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- 230000003287 optical effect Effects 0.000 claims abstract description 31
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 32
- 229910052742 iron Inorganic materials 0.000 description 16
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a kind of backlight modules of high screen accounting, and including backboard and the optical module being arranged on backboard, optical module includes reflectance coating, light guide plate and optical diaphragm；Backlight module has through-hole, which runs through backboard and optical module；The upper surface of optical diaphragm, which corresponds to, is provided with shading glue on the position of through-hole；Be provided with light-shielding structure on the inside of through-hole, light-shielding structure one end connects backboard, the other end pass through through-hole and with shading glue sticking.Backlight module provided by the present invention, by directly perforating on backboard, and a floor light-shielding structure is assembled on the inside of through-hole come the light obstructed inside and outside borehole area hole and the optical module played the role of at fixed hole position, the border width in borehole area is no longer limited by glue frame width, it realizes the technical effect for reducing the border width in borehole area, achievees the purpose that improve screen accounting.
Description
Technical field
The present invention relates to the backlight modules and display dress of display module technical field more particularly to a kind of high screen accounting
It sets.
Background technique
The display effect for pursuing higher screen accounting is always one of main direction of studying of smart phone.Due to technical bottleneck
And the reason of cost, major part smart phone still uses liquid crystal display now, it is contemplated that will still occupy an leading position in permanent future.
Liquid crystal itself does not shine, and needs beneath mating backlight module that could show picture.In the prior art in order to increase the screen of display screen
Through-hole can be arranged in accounting in backlight module, and the devices such as Lai Rongna camera, loudspeaker are to reduce the width of frame.Wherein iron frame
It is then to be molded the structure of glue frame by the way that the iron frame of lead to the hole site has been stretched iron frame turned legs.The iron frame ring that iron frame has stretched
Shape pillar is thin to be easily deformed cracking, and thru-hole distortion cracking influences product quality；And if being additionally provided with glue frame annular in through-hole
If pillar, burr is easy to produce when being molded glue frame influences the assembling of subsequent camera, generates quality problems.Glue frame is also easy to
It is isolated and fallen off with iron frame, influences the processing of light.Simultaneously between iron frame turned legs and the thickness of glue frame, light guide plate and glue frame
The gap of gap, glue frame and camera module all increases the area of dark space.
Therefore it also needs further to improve the structure of through hole to improve the stability and mould group of the through hole of backlight module
Screen accounting.
Summary of the invention
In order to overcome at least one defect described in the above-mentioned prior art, the present invention provides a kind of backlight mould of high screen accounting
Group.
The present invention is that technical solution used by solving the problems, such as it is:
A kind of backlight module of high screen accounting, including backboard and the optical module being arranged on the backboard, the light
Learning component includes being sequentially overlapped the reflectance coating, light guide plate and optical diaphragm being arranged on the backboard；
The backlight module has through-hole, and the through-hole runs through the backboard and the optical module；
The upper surface of the optical diaphragm corresponds to and is provided with shading glue on the position of the through-hole；
Light-shielding structure is provided on the inside of the through-hole, described light-shielding structure one end connects the backboard, the light-shielding structure
The other end pass through the through-hole and with the shading glue sticking.
Backlight module provided by the present invention by directly perforating on backboard, and assembles one layer of shading on the inside of through-hole
Structure eliminates existing come the light obstructed inside and outside borehole area hole and the optical module played the role of at fixed hole position
Glue iron frame structure at through-hole structure, therefore the border width in borehole area is no longer limited by glue frame width, is realized and is reduced borehole
The technical effect of the border width in area achievees the purpose that improve screen accounting.
Further, the light-shielding structure is opaque.
As a result, by making light-shielding structure opaque, it is able to achieve the effect of light leakage.
Further, silk-screen has black out ink or is pasted with shading secret note or is coated with argentum reflecting layer on the light-shielding structure.
It, can be further as a result, by silk-screen black out ink on shade or pasting shading secret note or silvered reflective layer
Ensure that light-shielding structure is opaque, and then prevent light leakage.
Further, the lower connection side for connecting with the backboard is provided on the light-shielding structure.
Further, it is provided on the light-shielding structure for the upper connection side with the shading glue sticking.
It is connect as a result, by lower connection side with backboard, upper connection side and shading glue sticking, it is ensured that light-shielding structure is in through-hole position
Optical module can be fixed on backboard by the place of setting.
Further, the light-shielding structure is in thin wall shape.
Further, the wall thickness of the light-shielding structure is 0.01-0.1mm.
Light-shielding structure is arranged to thin wall shape as a result, and controls its wall thickness, further decreases the border width in borehole area.
A kind of display device, including display panel and the backlight module.
In conclusion the backlight module of high screen accounting provided by the invention has the following technical effect that
1) by directly perforating on backboard, and a floor light-shielding structure is assembled to obstruct inside and outside borehole area hole on the inside of through-hole
Light and play the role of optical module at fixed hole position, and without using glue iron frame structure, the side in borehole area
Boundary's width is no longer limited by glue frame width, realizes the technical effect for reducing the border width in borehole area, reaches raising screen accounting
Purpose；
2) light-shielding structure is opaque, and by silk-screen black out ink on light-shielding structure or pasting shading secret note or silver-plated anti-
Penetrate layer, it is ensured that the effect of light-shielding structure realization light leakage；
3) it is connect by lower connection side with backboard, upper connection side and shading glue sticking, it is ensured that light-shielding structure is in lead to the hole site
Optical module can be fixed on backboard by place.
Detailed description of the invention
Fig. 1 is the schematic diagram of backlight module 1 in the prior art；
Fig. 2 is the profile of borehole position in backlight module 1 in the prior art；
Fig. 3 is the profile of borehole position in backlight module 1 provided in an embodiment of the present invention；
Fig. 4 to Figure 10 is the structural schematic diagram of light-shielding structure 16 provided in an embodiment of the present invention.
Wherein, appended drawing reference meaning is as follows:
1, backlight module；11, backboard；12, optical module；121, reflectance coating；122, light guide plate；123, optical diaphragm；13,
Backlight；14, through-hole；15, shading glue；16, light-shielding structure；161, lower connection side；162, upper connection side.
Specific embodiment
In order to better understand and implement, following will be combined with the drawings in the embodiments of the present invention, in the embodiment of the present invention
Technical solution be clearly and completely described.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that the limitation present invention.
As shown in figures 1 and 3, the invention discloses a kind of backlight modules 1 of high screen accounting, including backboard 11, backlight
13 and the optical module 12 that is arranged on the backboard 11, the backlight 13 be usually located at the side of backboard 11, sent out for side
Light LED, for providing back light for entire backlight module 1, the optical module 12 includes being sequentially overlapped to be arranged in the back
Reflectance coating 121, light guide plate 122 and optical diaphragm 123 on plate 11；The backlight module 1 has through-hole 14, the through-hole 14
Through the backboard 11 and the optical module 12.
Specifically, the through-hole 14 is located remotely from the backlight 13 and the position close to 1 edge of backlight module, it is used to
The devices such as camera, loudspeaker are accommodated to reduce the width of frame.Really, with advances in technology, backlight module 1 technique changes
Into the component part of the optical module 12 may change, therefore the above-mentioned specific through part to optical module 12 should not manage
Solution is limitation of the present invention；And the position for providing through-hole 14 in backlight module 1 is only exemplary in the present embodiment, and
According to actual needs, through-hole 14 can be located at any position of backlight module 1, therefore the specific location of through-hole 14 should not be so limited.
As shown in figure 3, the upper surface of the optical diaphragm 123, which corresponds to, is provided with shading glue on the position of the through-hole 14
15, the shading glue 15 plays the role of shading and bonding liquid crystal module, isolation dust foreign matter；It is provided on the inside of the through-hole 14
Light-shielding structure 16, described 16 one end of light-shielding structure connect the backboard 11, and 16 other end of light-shielding structure passes through the through-hole
14 and Nian Jie with the shading glue 15.A floor light-shielding structure 16 is assembled on the inside of through-hole 14 as a result, to obstruct inside and outside borehole area hole
Light and play the role of optical diaphragm 123 at 14 position of fixed hole, eliminate the glue iron at existing through-hole structure
Mount structure, therefore the border width in borehole area is no longer limited by glue frame width, realizes the skill for reducing the border width in borehole area
Art effect achievees the purpose that improve screen accounting.
As shown in Fig. 2, the iron frame pillar and glue frame of glue iron frame structure are wide at through-hole structure in existing backlight module 1
Range is spent between 0.8-1.2mm, it is contemplated that light guide plate 122 and glue iron frame expand with heat and contract with cold, and light guide plate 122 and glue frame will be there are
There are also there are certain gap h2, the general 0.2mm of h2 for camera module in the gap h1 of 0.2mm or so, glue frame and through-hole 14
Left and right.Then province removes photoresist iron frame structure at through-hole 14 in the present invention, may be omitted with gap h1 and gap h2, reduces the hole of through-hole 14
Diameter reduces the border width in borehole area, improves screen accounting.
In order to further decrease the border width in borehole area, the light-shielding structure 16 is in thin wall shape, and its wall thickness is 0.01-
0.1mm, the width Nian Jie with shading glue 15 of light-shielding structure 16 are 0.2-0.4mm.
In the present embodiment, the light-shielding structure 16 is opaque.For example, it may be material used in light-shielding structure 16 itself
Expect opaque, be also possible to by carrying out silk-screen black out ink to light-shielding structure 16 or pasting shading secret note or silvered reflective layer,
To ensure that light-shielding structure 16 is opaque, and then realize the effect for preventing light leakage.
As shown in Fig. 4 to Figure 10, in the present embodiment, it is provided on the light-shielding structure 16 for connecting with the backboard 11
The lower connection connect while 161 and/be used for the upper connection Nian Jie with the shading glue 15 while 162, the lower connection side 161 and upper company
Edge fit 162 can be arranged in simultaneously on light-shielding structure 16, can also be provided separately on light-shielding structure 16.Pass through lower connection side as a result,
161 connect with backboard 11, and upper connection side 162 is Nian Jie with shading glue 15, it is ensured that light-shielding structure 16 can incite somebody to action at 14 position of through-hole
Optical module 12 is fixed on backboard 111.Wherein, light-shielding structure 16 is connected by way of gluing, spot welding, hot melt or buckle
It is fixed on backboard 11, specific connection type should not be so limited.
As shown in Fig. 4 to Figure 10, specifically, the light-shielding structure 16 can be an integral molding structure, it can also be upper and lower
Splicing construction, stitching portion can be connected and fixed by way of gluing or spot welding.Moreover, the lower connection side 161 is by hiding
16 outward bending of photo structure is formed, and can be fastened on the lower surface of backboard 11 so as to light-shielding structure 16；The upper connection side 162
Can be formed or be bent inwards by 16 outward bending of light-shielding structure formed or it is upper connection side 162 internal diameter be less than shading knot
The internal diameter of structure 16 and its outer diameter are greater than the outer diameter of light-shielding structure 16, to increase the bonding plane of light-shielding structure 16 Yu shading glue 15
Product.
For the ease of processing and ensuring structural strength, the light-shielding structure 16 is metal sheet (copper, iron, steel, aluminium flake)
Or some moldings easy to operate such as colloid, plastics, pet membrane material, relatively relatively soft material is made.
In the present embodiment, the cross-sectional shape of the light-shielding structure 16 is closed form, such as can be round, oval
Shape, rectangular, diamond shape etc. are any, wherein the lower connection 162 shape and cross of light-shielding structure 16 at 161 and upper connection
Cross sectional shape is similar.But the concrete shape of 16 its cross section of light-shielding structure should not be so limited.
The processing of the light-shielding structure 16 and its installation method:
1. 16 design data of light-shielding structure is handled: 14 size of through-hole designed according to backlight module 1 designs single hide
The size and size of photo structure Unit 16, obtain data one；Then the whole board structure containing several light-shielding structure Unit 16 is formed
Data two.
2. the preparation of raw material: choosing common formed sheet metal or the membrane materials ready for use such as plastics colloid or pet.
3. the construction profile working process of light-shielding structure 16: by step, 1. the middle data two formed import production equipment computer
In, raw material is put into equipment hopper, starting device, by raw material fusion drawn, is cut into 16 list of several light-shielding structures
The whole board structure of member.
4. adding pre- broken string in whole board structure: by light-shielding structure Unit 16 in the step whole board structure that 3. middle processing obtains
It is configured pre- break line treatment, the separation of light-shielding structure 16 is facilitated to remove the operation being installed in the through-hole 14 of backlight module 1.
5. adding light shield layer on light-shielding structure 16: if the raw material that selects is to be some without shading, extinction, reflected light
Substance then will be that light shield layer is arranged to the light-shielding structure 16 4. obtained in step in molding whole board structure, such as be put into ink silk
It prints in machine to the surface silk-screen black out ink of light-shielding structure 16 or stickup shading secret note or silvered reflective layer.
6. the setting of attachment device on light-shielding structure 16: the 16 outside brush coating of light-shielding structure or patch 4. or 5. obtained to step
Glue, connecting with other membrane materials in through-hole, or setting buckle with backboard 11 to snap connection；Wherein, when light-shielding structure 16
When for metal material, it can be fixed by spot welding；Processing is completed through the above steps, obtains 16 finished product of light-shielding structure.
7. the installation of shade: 16 finished product of light-shielding structure in whole board structure being removed one by one and is installed in through-hole 14
Side, light-shielding structure 16 is by buckle or is adhesive in backboard and other membrane materials.If light-shielding structure 16 is splicing construction, then step
3. being processed into upper and lower light-shielding structure, in this step in addition to being mounted on the inside of through-hole, also need upper and lower light-shielding structure card
Button, gluing are connected and fixed.
In conclusion the machine-shaping of light-shielding structure 16 is simple, existing mould group machinery equipment can operate production, no
It needs additionally to increase equipment, installs easy to operate.
The invention also discloses a kind of display device, which includes display panel and the backlight module 1.
In conclusion the backlight module 1 of high screen accounting disclosed by the invention, by directly perforating on backboard 11, and
A floor light-shielding structure 16 is assembled on the inside of through-hole 14 to obstruct the light inside and outside borehole area hole and play at 14 position of fixed hole
Optical module 12 effect, and without using glue iron frame structure, the border width in borehole area no longer limited by glue frame width,
It realizes the technical effect for reducing the border width in borehole area, achievees the purpose that improve screen accounting；Light-shielding structure 16 is opaque, and leads to
It crosses to silk-screen black out ink on light-shielding structure 16 or pastes shading secret note or silvered reflective layer, it is ensured that light-shielding structure 16 realizes leakproof
The effect of light；It is connect by lower connection side 161 with backboard 11, upper connection side 162 is Nian Jie with shading glue 15, it is ensured that light-shielding structure 16
Optical module 12 can be fixed on backboard 11 at 14 position of through-hole.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of backlight module (1) of high screen accounting, including backboard (11) and the optics group being arranged on the backboard (11)
Part (12), the optical module (12) include being sequentially overlapped reflectance coating (121), the light guide plate being arranged on the backboard (11)
(122) and optical diaphragm (123), it is characterised in that:
The backlight module (1) has through-hole (14), and the through-hole (14) runs through the backboard (11) and the optical module
(12)；
The upper surface of the optical diaphragm (123) corresponds to and is provided with shading glue (15) on the positions of the through-hole (14)；
It being provided with light-shielding structure (16) on the inside of the through-hole (14), described light-shielding structure (16) one end connects the backboard (11),
Light-shielding structure (16) other end passes through the through-hole (14) and Nian Jie with the shading glue (15).
2. backlight module (1) according to claim 1, it is characterised in that: the light-shielding structure (16) is opaque.
3. backlight module (1) according to claim 2, it is characterised in that: silk-screen has shading on the light-shielding structure (16)
Ink is pasted with shading secret note or is coated with argentum reflecting layer.
4. backlight module (1) according to claim 1, it is characterised in that: be provided with and be used on the light-shielding structure (16)
The lower connection side (161) being connect with the backboard (11).
5. backlight module (1) according to claim 1, it is characterised in that: be provided with and be used on the light-shielding structure (16)
The upper connection side (162) Nian Jie with the shading glue (15).
6. backlight module (1) according to any one of claims 1 to 5, it is characterised in that:
The light-shielding structure (16) is in thin wall shape.
7. backlight module (1) according to claim 6, it is characterised in that: the wall thickness of the light-shielding structure (16) is 0.01-
0.1mm。
8. a kind of display device, it is characterised in that: including display panel and backlight as described in any one of claim 1 to 7
Mould group (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910417528.1A CN110174799A (en) | 2019-05-20 | 2019-05-20 | A kind of backlight module and display device of high screen accounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910417528.1A CN110174799A (en) | 2019-05-20 | 2019-05-20 | A kind of backlight module and display device of high screen accounting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110174799A true CN110174799A (en) | 2019-08-27 |
Family
ID=67691538
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910417528.1A Pending CN110174799A (en) | 2019-05-20 | 2019-05-20 | A kind of backlight module and display device of high screen accounting |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110706588A (en) * | 2019-10-25 | 2020-01-17 | 武汉华星光电技术有限公司 | Through-hole screen seals glue structure |
| CN110737045A (en) * | 2019-10-28 | 2020-01-31 | 维沃移动通信有限公司 | backlight module and electronic equipment |
| CN110890023A (en) * | 2019-11-20 | 2020-03-17 | 厦门天马微电子有限公司 | Display module, manufacturing method thereof and display device |
| CN111007679A (en) * | 2019-10-31 | 2020-04-14 | 深圳市德仓科技有限公司 | Backlight module frame, backlight module and terminal |
| CN111007678A (en) * | 2019-10-31 | 2020-04-14 | 深圳市德仓科技有限公司 | Backlight module frame and processing method |
| CN111025754A (en) * | 2019-12-13 | 2020-04-17 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN111240089A (en) * | 2020-01-14 | 2020-06-05 | 深圳市德仓科技有限公司 | Bottom frame, bottom frame manufacturing method, backlight module and terminal |
| CN111443523A (en) * | 2020-03-25 | 2020-07-24 | Oppo广东移动通信有限公司 | Electronic equipment and display assembly thereof |
| WO2021068434A1 (en) * | 2019-10-12 | 2021-04-15 | 武汉华星光电技术有限公司 | Backlight module, display apparatus, and method for manufacturing backlight module |
| CN112669704A (en) * | 2019-10-15 | 2021-04-16 | 三星显示有限公司 | Display device |
| CN112904614A (en) * | 2021-01-29 | 2021-06-04 | 京东方科技集团股份有限公司 | Display module, preparation method thereof and display device |
| CN113539095A (en) * | 2021-07-15 | 2021-10-22 | 北京京东方显示技术有限公司 | Backlight module and display device |
| CN115327816A (en) * | 2022-08-31 | 2022-11-11 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN116699891A (en) * | 2022-11-04 | 2023-09-05 | 荣耀终端有限公司 | Display screen and electronic equipment |
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| CN111007679A (en) * | 2019-10-31 | 2020-04-14 | 深圳市德仓科技有限公司 | Backlight module frame, backlight module and terminal |
| CN110890023A (en) * | 2019-11-20 | 2020-03-17 | 厦门天马微电子有限公司 | Display module, manufacturing method thereof and display device |
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| CN111240089A (en) * | 2020-01-14 | 2020-06-05 | 深圳市德仓科技有限公司 | Bottom frame, bottom frame manufacturing method, backlight module and terminal |
| CN111443523A (en) * | 2020-03-25 | 2020-07-24 | Oppo广东移动通信有限公司 | Electronic equipment and display assembly thereof |
| CN112904614A (en) * | 2021-01-29 | 2021-06-04 | 京东方科技集团股份有限公司 | Display module, preparation method thereof and display device |
| CN113539095A (en) * | 2021-07-15 | 2021-10-22 | 北京京东方显示技术有限公司 | Backlight module and display device |
| CN115327816A (en) * | 2022-08-31 | 2022-11-11 | 厦门天马微电子有限公司 | Backlight module and display device |
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