CN105807492A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN105807492A CN105807492A CN201610349473.1A CN201610349473A CN105807492A CN 105807492 A CN105807492 A CN 105807492A CN 201610349473 A CN201610349473 A CN 201610349473A CN 105807492 A CN105807492 A CN 105807492A
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- China
- Prior art keywords
- light
- guide plate
- light guide
- backlight module
- material layer
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- 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
-
- 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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to the technical field of displays and discloses a backlight module and a display device, aiming at reducing situations that a diffuser is warped up, edges of a light outlet surface of a backlight source are brightened and the brightness and darkness are not even, and improving the display effect of the display device. The backlight module comprises a light guide plate, a light source on an incident side of the light guide plate, the diffuser on an emergent side of the light guide plate, a lens layer on one side, opposite to the light plate, of the diffuser, and a shading tape on the periphery of the light outlet surface of the backlight module, and further comprises a flexible light absorbing material layer on one side, towards the light guide plate, of the shading tape, wherein the flexible light absorbing material layer is attached to the part, close to the emergent side of the light guide plate, of the shading tape, and the side, opposite to the shading tape, of the flexible light absorbing material layer resists against the side, opposite to the light guide plate, of the diffuser.
Description
Technical field
The present invention relates to display preparing technical field, particularly to a kind of backlight module and display device.
Background technology
Liquid crystal indicator (LiquidCrystalDisplay, LCD) have that fuselage is thin, power saving, the many merits such as radiationless, it is widely used, such as mobile phone, personal digital assistant (PDA), digital camera, computer screen or notebook computer screen etc..
Liquid crystal indicator major part on existing market is backlight liquid crystal indicator, and it includes housing, the liquid crystal panel of being located in housing and the backlight module (Backlightmodule) being located in housing.Owing to liquid crystal panel itself is not luminous, it is necessary to the light source provided by backlight module carrys out normal show image, therefore, one of backlight module key component becoming liquid crystal indicator.Backlight module is divided into side entrance back module and down straight aphototropism mode set two kinds according to the difference of light source incidence position.Down straight aphototropism mode set is by illuminating source such as cathodouminescence fluorescent tube (ColdCathodeFluorescentLamp, or light emitting diode (LightEmittingDiode CCFL), LED) it is arranged on liquid crystal panel rear, directly forms area source and be supplied to liquid crystal panel.And side entrance back module is the back plate edges place that backlight LED lamp bar (Lightbar) is located at liquid crystal panel rear flank side, the light that LED lamp bar sends is from light guide plate (LightGuidePlate, LGP) incidence surface of side enters light guide plate, penetrate from light guide plate exiting surface after being reflected and spreading, then through by optical diaphragm group, it is supplied to liquid crystal panel forming area source.
As shown in Figure 1, Fig. 1 is the explosive view of backlight module of the prior art, existing side entrance back module includes: backboard 01, the light guide plate 02 being located in backboard 01 and in being located at backboard 01 and be positioned at the shading rubber belt 07 of surrounding of the light source 03 of incident side of light guide plate 02, the diffusion sheet 04 being located on light guide plate 02 and the glue frame 08 being located on backboard 01, the layers of prisms 06 being arranged on diffusion sheet 04 and the exiting surface that is arranged at backlight module, and light source 03 includes: flexible PCB 031 and the LED being connected with flexibility circuit board 031.
As shown in Figure 2, Fig. 2 is back light module unit structure schematic diagram of the prior art, diffusion sheet 04 is arranged over layers of prisms 06, owing to there is gap between layers of prisms 06 and flexible PCB 05, therefore the light that light source sends is easily from this gap directive display floater, cause that light leak before lamp is serious, the generation of bright border phenomenon, the display effect of impact display display device.
Summary of the invention
The invention provides a kind of backlight module and display device, tilt the generation of the exiting surface bright border with backlight and light and shade non-uniform phenomenon in order to reduce diffusion sheet, improve the display effect of display device.
For reaching above-mentioned purpose, the present invention provides techniques below scheme:
The invention provides a kind of backlight module, including: light guide plate, it is positioned at the light source of the incident side of described light guide plate, is positioned at the diffusion sheet of the light emission side of described light guide plate, is positioned at described diffusion sheet and deviates from the layers of prisms of described light guide plate side and be positioned at the shading rubber belt of periphery of exiting surface of described backlight module, also include:
It is positioned at the described shading rubber belt flexible light-absorbing material layer towards described light guide plate side, described flexible light-absorbing material layer is attached at described shading rubber belt in the part of the light emission side of described light guide plate, and described flexible light-absorbing material layer deviates from the one side that the one side of described shading rubber belt and described diffusion sheet deviate from described light guide plate and offsets.
Backlight module provided by the invention, by arranging flexible light-absorbing material layer, the some light of light inputting end can be absorbed, the generation of light direct irradiation phenomenon on the end face of display floater can be reduced, flexible light-absorbing material layer is attached to the lower section of shading rubber belt, compare diffusion sheet front end and attach shading rubber belt, can effectively solving the buckling phenomena occurred in high temperature environments because of physical characteristic differences such as material shrinkage factors because of diffusion sheet with light shield layer or foam, diffusion sheet freely can stretch in reliability test process.
Therefore, backlight module provided by the invention, it is possible to reduce diffusion sheet tilts the generation of the exiting surface bright border with backlight and light and shade non-uniform phenomenon, improves the display effect of display device.
In some optional embodiments, described light source includes: flexible PCB and the multiple LED being positioned on described flexible PCB to electrically connect with described flexible PCB.
In some optional embodiments, there is the first gap in described layers of prisms, described flexible light-absorbing material layer is positioned at described first gap between one end and described flexible PCB of described flexible PCB.Diffusion sheet is not ridden over to the structure of shading rubber belt upper surface, after shading rubber belt attaches flexible light-absorbing material layer, for floating, because of flexible PCB, the some light causing spilling, can be absorbed by flexible light-absorbing material layer, the generation of the light direct irradiation that minimizing light source sends phenomenon on a display panel, to solve the exiting surface bright border of backlight and the problem that light and shade is uneven.
In some optional embodiments, one end of described diffusion sheet extends to described flexible PCB, and is overlapped in described flexible PCB.Diffusion sheet is overlapped on flexible PCB, can reduce owing to the gap existed between flexible PCB and diffusion sheet causes the exiting surface bright border of backlight and the generation of light and shade non-uniform phenomenon, flexible light-absorbing material layer by arranging simultaneously, it is possible to reduce the exiting surface bright border of backlight and the generation of light and shade non-uniform phenomenon further.
In some optional embodiments, between one end and described printed circuit board (PCB) of described flexible PCB, there is the second gap in described diffusion sheet, and described second gap along be perpendicular to described light guide plate incidence surface direction on width less than described first gap along be perpendicular to described light guide plate incidence surface direction on width.
In some optional embodiments, the width that described flexible light-absorbing material layer edge is perpendicular on the direction of the incidence surface of described light guide plate is 0.6 millimeter~1 millimeter.
In some optional embodiments, described flexible light-absorbing material layer is black foamed cotton layer.
In some optional embodiments, described flexible light-absorbing material layer is polyethylene terephthalate layer.
Present invention also offers a kind of display device, including: display floater, also include: the backlight module described in any of the above-described item.Due to above-mentioned backlight module, it is possible to reduce the exiting surface bright border of diffusion sheet tilting and backlight and the generation of light and shade non-uniform phenomenon, therefore display device provided by the invention, there is good display effect.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the explosive view of backlight module of the prior art;
Fig. 2 is back light module unit structure schematic diagram of the prior art;
A kind of structural representation of the backlight module that Fig. 3 provides for the embodiment of the present invention;
The another kind of structural representation of the backlight module that Fig. 4 provides for the embodiment of the present invention.
In figure:
01-backboard 02-light guide plate
03-light source 031-flexible PCB
04-diffusion sheet 05-shading rubber belt
06-layers of prisms 07-glue frame
1-light guide plate 2-light source
21-LED lamp 22-flexible PCB
3-diffusion sheet 4-layers of prisms
5-shading rubber belt 6-flexibility light-absorbing material layer
W2-the second gap, W1-the first gap
W3-width
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.
As shown in Figure 3 and Figure 4, wherein: a kind of structural representation of the backlight module that Fig. 3 provides for the embodiment of the present invention;The another kind of structural representation of the backlight module that Fig. 4 provides for the embodiment of the present invention.The invention provides a kind of backlight module, including: light guide plate 1, it is positioned at the light source 2 of the incident side of light guide plate 1, is positioned at the diffusion sheet 3 of the light emission side of light guide plate 1, is positioned at diffusion sheet 3 and deviates from the layers of prisms 4 of light guide plate 1 side and be positioned at the shading rubber belt 5 of periphery of exiting surface of backlight module, also include:
It is positioned at the shading rubber belt 5 flexible light-absorbing material layer 6 towards light guide plate 1 side, flexible light-absorbing material layer 6 is attached at shading rubber belt 5 in the part of the light emission side of light guide plate 1, and flexible light-absorbing material layer 6 deviates from the one side that the one side of shading rubber belt 5 and diffusion sheet 3 deviate from light guide plate 1 and offsets.
Backlight module provided by the invention, by arranging flexible light-absorbing material layer 6, the some light of light inputting end can be absorbed, the generation of light direct irradiation phenomenon on the end face of display floater can be reduced, flexible light-absorbing material layer 6 is attached to the lower section of shading rubber belt 5, compare diffusion sheet 3 front end and attach shading rubber belt 5, can effectively solving the buckling phenomena occurred in high temperature environments because of physical characteristic differences such as material shrinkage factors because of diffusion sheet 3 with light shield layer or foam, diffusion sheet 3 freely can stretch in reliability test process.
Therefore, backlight module provided by the invention, it is possible to reduce diffusion sheet 3 tilts the generation of the exiting surface bright border with backlight 2 and light and shade non-uniform phenomenon, improves the display effect of display device.
Backlight module provided by the invention, the structure attaching extinction adhesive tape on light guide plate is adopted in compared to existing technology, light loss can be reduced, because adhesive tape is bonded at light guide plate, the total reflection in light guide plate can be destroyed, produce light loss, and the number of light loss is relevant with the area being attached on light guide plate of extinction adhesive tape, the more big light loss of area of attachment is more big, additionally, attaching extinction adhesive tape on light guide plate can make flexible printed circuit board be elevated, gap can be produced between diffusion sheet and light guide plate, easily produce bright border, also being easily caused flexible PCB floats the generation of phenomenon simultaneously.
Above-mentioned light source 2 generally comprises: flexible PCB 22 and the multiple LED 21 being positioned on flexible PCB 22 to electrically connect with flexible PCB 22.
The position relationship of above-mentioned diffusion sheet and flexible PCB 22 generally has multiple:
In a kind of optional embodiment, as it is shown on figure 3, layers of prisms 4 exists the first gap W1 between one end and flexible PCB 22 of flexible PCB 22, flexible light-absorbing material layer is positioned at the first gap W1.Diffusion sheet 3 is not ridden over to the structure of shading rubber belt 5 upper surface, after shading rubber belt 5 attaches flexible light-absorbing material layer 6, for floating, because of flexible PCB 22, the some light causing spilling, can be absorbed by flexible light-absorbing material layer 6, the generation of the light direct irradiation that minimizing light source 2 sends phenomenon on a display panel, to solve the exiting surface bright border of backlight 2 and the problem that light and shade is uneven.
Further, between one end and printed circuit board (PCB) of flexible PCB 22, there is the second gap W2 in diffusion sheet 3, and the second gap W2 along be perpendicular to light guide plate 1 incidence surface direction on width less than the first gap W1 along be perpendicular to light guide plate 1 incidence surface direction on width.
In another kind of optional embodiment, one end of diffusion sheet 3 extends to flexible PCB 22, and is overlapped in flexible PCB 22.Diffusion sheet is overlapped on flexible PCB 22, can reduce owing to the gap existed between flexible PCB 22 and diffusion sheet causes the exiting surface bright border of backlight 2 and the generation of light and shade non-uniform phenomenon, flexible light-absorbing material layer 6 by arranging simultaneously, it is possible to reduce the exiting surface bright border of backlight 2 and the generation of light and shade non-uniform phenomenon further.
Needs according to backlight module actual size, it is preferred that flexible light-absorbing material layer 6 along be perpendicular to light guide plate 1 incidence surface direction on width W3 be 0.6 millimeter~1 millimeter.
Above-mentioned flexible light-absorbing material layer 6 generally selects inclined soft material matter, can regulate deformation according to pressure, and in a kind of optional embodiment, flexible light-absorbing material layer 6 is black foamed cotton layer.
In another kind of optional embodiment, flexible light-absorbing material layer 6 is polyethylene terephthalate layer.
Based on the advantage of above-mentioned backlight module, present invention also offers a kind of display device, including: display floater, also include: the backlight module described in any of the above-described item.Due to above-mentioned backlight module, it is possible to reduce the exiting surface bright border of diffusion sheet tilting and backlight and the generation of light and shade non-uniform phenomenon, therefore display device provided by the invention, there is good display effect.
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a backlight module, including: light guide plate, it is positioned at the light source of the incident side of described light guide plate, is positioned at the diffusion sheet of the light emission side of described light guide plate, is positioned at described diffusion sheet and deviates from the layers of prisms of described light guide plate side and be positioned at the shading rubber belt of periphery of exiting surface of described backlight module, it is characterized in that, also include:
It is positioned at the described shading rubber belt flexible light-absorbing material layer towards described light guide plate side, described flexible light-absorbing material layer is attached at described shading rubber belt in the part of the light emission side of described light guide plate, and described flexible light-absorbing material layer deviates from the one side that the one side of described shading rubber belt and described diffusion sheet deviate from described light guide plate and offsets.
2. backlight module according to claim 1, it is characterised in that described light source includes: flexible PCB and the multiple LED being positioned on described flexible PCB to electrically connect with described flexible PCB.
3. backlight module according to claim 2, it is characterised in that described layers of prisms exists the first gap between one end and described printed circuit board (PCB) of described flexible PCB, and described flexible light-absorbing material layer is positioned at described first gap.
4. backlight module according to claim 3, it is characterised in that one end of described diffusion sheet extends to described flexible PCB, and is overlapped in described flexible PCB.
5. backlight module according to claim 3, it is characterized in that, between one end and described printed circuit board (PCB) of described flexible PCB, there is the second gap in described diffusion sheet, and described second gap along be perpendicular to described light guide plate incidence surface direction on width less than described first gap along be perpendicular to described light guide plate incidence surface direction on width.
6. the backlight module according to any one of Claims 1 to 5, it is characterised in that the width that described flexible light-absorbing material layer edge is perpendicular on the direction of the incidence surface of described light guide plate is 0.6 millimeter~1 millimeter.
7. backlight module according to claim 6, it is characterised in that described flexible light-absorbing material layer is black foamed cotton layer.
8. backlight module according to claim 6, it is characterised in that described flexible light-absorbing material layer is polyethylene terephthalate layer.
9. a display device, including: display floater, it is characterised in that also include: the backlight module as described in any one of claim 1~8.
Priority Applications (1)
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CN201610349473.1A CN105807492A (en) | 2016-05-24 | 2016-05-24 | Backlight module and display device |
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CN201610349473.1A CN105807492A (en) | 2016-05-24 | 2016-05-24 | Backlight module and display device |
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Cited By (8)
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CN106842713A (en) * | 2017-04-12 | 2017-06-13 | 广东欧珀移动通信有限公司 | Backlight module and electronic installation |
CN108089256A (en) * | 2018-01-31 | 2018-05-29 | 广东欧珀移动通信有限公司 | Electronic device and its display module, backlight module |
CN108169843A (en) * | 2018-01-31 | 2018-06-15 | 广东欧珀移动通信有限公司 | Electronic device and its display module, backlight module |
CN111679506A (en) * | 2020-06-29 | 2020-09-18 | 维沃移动通信有限公司 | Backlight module and electronic equipment |
CN112147735A (en) * | 2019-06-28 | 2020-12-29 | 北京小米移动软件有限公司 | Backlight module, display panel and display device |
CN112764268A (en) * | 2021-01-12 | 2021-05-07 | 业成科技(成都)有限公司 | Backlight module and display device |
CN113625488A (en) * | 2021-08-11 | 2021-11-09 | 东莞华贝电子科技有限公司 | Backlight module and display device |
CN115542611A (en) * | 2022-11-25 | 2022-12-30 | 惠科股份有限公司 | Backlight module and display device |
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CN106842713A (en) * | 2017-04-12 | 2017-06-13 | 广东欧珀移动通信有限公司 | Backlight module and electronic installation |
CN106842713B (en) * | 2017-04-12 | 2024-04-16 | Oppo广东移动通信有限公司 | Backlight module and electronic device |
CN108089256A (en) * | 2018-01-31 | 2018-05-29 | 广东欧珀移动通信有限公司 | Electronic device and its display module, backlight module |
CN108169843A (en) * | 2018-01-31 | 2018-06-15 | 广东欧珀移动通信有限公司 | Electronic device and its display module, backlight module |
CN112147735A (en) * | 2019-06-28 | 2020-12-29 | 北京小米移动软件有限公司 | Backlight module, display panel and display device |
CN111679506A (en) * | 2020-06-29 | 2020-09-18 | 维沃移动通信有限公司 | Backlight module and electronic equipment |
CN112764268A (en) * | 2021-01-12 | 2021-05-07 | 业成科技(成都)有限公司 | Backlight module and display device |
CN112764268B (en) * | 2021-01-12 | 2023-04-11 | 业成科技(成都)有限公司 | Backlight module and display device |
CN113625488A (en) * | 2021-08-11 | 2021-11-09 | 东莞华贝电子科技有限公司 | Backlight module and display device |
CN115542611A (en) * | 2022-11-25 | 2022-12-30 | 惠科股份有限公司 | Backlight module and display device |
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