CN108563065A - A kind of backlight module and manufacturing method, display device - Google Patents
A kind of backlight module and manufacturing method, display device Download PDFInfo
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- CN108563065A CN108563065A CN201810198690.4A CN201810198690A CN108563065A CN 108563065 A CN108563065 A CN 108563065A CN 201810198690 A CN201810198690 A CN 201810198690A CN 108563065 A CN108563065 A CN 108563065A
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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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of backlight module and manufacturing method, display devices.Backlight module, including light guide plate, backlight, reflectance coating, wherein backlight module further includes curved surface composite membrane；Curved surface composite membrane includes the substrate set gradually, diffusion layer and film layer of adding lustre to；Film layer of adding lustre to shape in curved surface, substrate are in planar, and diffusion layer is in plane close to the surface of substrate, and surface of the diffusion layer far from substrate is in curved surface；Light guide plate is in planar；Backlight module sets gradually reflectance coating, light guide plate and curved surface composite membrane.Backlight module disclosed by the invention can solve the problems, such as backlight module membrane material peeling caused by tension when being bent of traditional design；The difficult point for needing to make curved surface light guide plate in traditional backlight module is also overcomed simultaneously.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of backlight module and manufacturing method, display device.
Background technology
In existing display device technology, display panel is broadly divided into liquid crystal display panel and organic light-emitting display panel
The technology of two kinds of mainstreams.Wherein, for liquid crystal display panel by applying voltage at liquid crystal molecule both ends, formation can control liquid crystal point
The electric field of son deflection, and then control the display function through realization display panel of light.In liquid crystal display device, need
Backlight module provides light source for display device, and backlight module is generally divided into two kinds of backlight modules of side-light type and straight-down negative, wherein side
Light formula backlight module becomes mainstream technology due to that can realize being thinned for display device integral thickness.
In recent years, people require the sensory experience of display device higher and higher, the display device of Curved screen occur.And
Existing backlight module by optical diaphragms such as multiple film layer structure compositions, including light guide plate, diffusion sheet, upper reflector plate, lower reflector plate,
When being bent, there are tension, each membrane material to be easy to happen stripping in the edge of bending position is due to each membrane material stacked structure
The problems such as falling or tilting influences the performance reliability of display device；And the manufacture craft difficulty of the light guide plate of bending is larger, meeting
Increase the cost of manufacture of liquid crystal display device.
Therefore it provides the backlight module and manufacturing method and display device of a kind of dependable performance, are that this field is urgently to be resolved hurrily
The problem of.
Invention content
In view of this, a kind of backlight module of present invention offer and manufacturing method, display device are to solve to carry on the back in the prior art
The technical issues of optical mode group encounters when being bent.
In a first aspect, the embodiment of the present invention provides a kind of backlight module, including light guide plate, backlight, reflectance coating, further include
Curved surface composite membrane；The curved surface composite membrane includes the substrate set gradually, diffusion layer and film layer of adding lustre to；The film layer of adding lustre to is in song
Planar, the substrate are in planar, and the diffusion layer is in plane close to the surface of the substrate, and the diffusion layer is far from the base
The surface at bottom is in curved surface；The light guide plate is in planar；The backlight module sets gradually the reflectance coating, light guide plate and curved surface
Composite membrane.
Second aspect, the embodiment of the present invention provide a kind of manufacturing method of backlight module, including：Reflectance coating is sequentially formed to lead
Tabula rasa and curved surface composite membrane；Backlight is formed in the side of the backlight module；The formation curved surface composite membrane includes forming base
Bottom, diffusion layer, film layer of adding lustre to, wherein the substrate of formation is planar, and the film layer of adding lustre to of formation is curved, shape
At the diffusion layer close to the surface of the substrate be plane, the diffusion layer of formation is song far from the surface of the substrate
Face.
The third aspect, the embodiment of the present invention provide a kind of display device, and the display device includes that the embodiment of the present invention carries
Any one backlight module supplied.
Compared with prior art, backlight module provided by the invention includes light guide plate, backlight, reflectance coating, further includes song
Face composite membrane.Above-mentioned curved surface composite membrane includes the substrate set gradually, diffusion layer and film layer of adding lustre to：Film layer of adding lustre to shape in curved surface,
Substrate is in planar, and diffusion layer is in plane close to the surface of substrate, and surface of the diffusion layer far from substrate is in curved surface；Light guide plate is in flat
Planar；Backlight module sets gradually the reflectance coating, light guide plate and curved surface composite membrane.Backlight module provided by the invention is on the one hand
The problems such as achieving the effect that bending by the way that curved surface composite membrane is arranged, avoiding the peeling that membrane material occurs in bending；Another party
Face need not be bent light guide plate, and light guide plate still keeps tabular, will not additionally increase manufacturing cost.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of part-structure exploded view of backlight module provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic top plan view of the curved surface composite membrane of backlight module provided in an embodiment of the present invention；
Fig. 3 is a kind of diagrammatic cross-section of the AA ' lines along Fig. 2；
Fig. 4 is a kind of schematic top plan view of backlight module provided in an embodiment of the present invention；
Fig. 5 is a kind of diagrammatic cross-section of the BB ' lines along Fig. 4；
Fig. 6 is a kind of flow diagram of the manufacturing method of backlight module provided in an embodiment of the present invention；
Fig. 7 is a kind of flow diagram that curved surface composite membrane is formed in manufacturing method provided in an embodiment of the present invention；
Fig. 8 is another flow diagram that curved surface composite membrane is formed in manufacturing method provided in an embodiment of the present invention；
Fig. 9 is another flow diagram of the manufacturing method of backlight module provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of backlight module, and as shown in Figure 1, Figure 2 and Figure 3, Fig. 1 is that the embodiment of the present invention provides
A kind of backlight module part-structure exploded view, Fig. 2 is that a kind of curved surface of backlight module provided in an embodiment of the present invention is compound
The schematic top plan view of film, Fig. 3 are a kind of diagrammatic cross-sections of the AA ' lines along Fig. 2, and backlight module 100 includes light guide plate 2, backlight
Source 3, reflectance coating 4 further include curved surface composite membrane 1；Curved surface composite membrane 1 includes the substrate 10 set gradually, diffusion layer 20 and adds lustre to
Film layer 40；40 shape in curved surface of film layer of adding lustre to, substrate 10 are in planar, and diffusion layer 20 is in plane, diffusion close to the surface of substrate 10
20 surface far from substrate 10 of layer are in curved surface；Light guide plate 2 is in planar；Backlight module 100 sets gradually reflectance coating 4, light guide plate 2
With curved surface composite membrane 1.
Backlight module provided in an embodiment of the present invention achievees the effect that backlight module is bent by the way that curved surface composite membrane is arranged,
The curved surface composite membrane by the way that planar substrate is arranged, a surface is curved and a surface is planar diffusion layer and song
The film layer of adding lustre to of planar can avoid the defect and deficiency that occur when being bent to backlight module in traditional technology.Meanwhile this hair
Bright embodiment need not be bent the light guide plate of backlight module, still maintain the planar of light guide plate, alleviate technique system
The pressure and cost made.
In some optional embodiments, with continued reference to FIG. 3, curved surface composite membrane 1 further includes glue layer 30.Curved surface is compound
The setting of glue layer in film, it is ensured that each membrane material is compact when carrying out bending process to be not readily separated, and film in the prior art is improved
The phenomenon that material is peeled off or is tilted.
In some optional embodiments, with continued reference to FIG. 3, film layer 40 of adding lustre to is added lustre to film layer 41 and second including first
Film layer of adding lustre to 42, glue layer 30 include the first glue layer 31 and the second glue layer 32.Curved surface composite membrane 1 includes the base set gradually
Bottom 10, diffusion layer 20, the second glue layer 32, the second add lustre to film layer 42, the first glue layer 31 and first add lustre to film layer 41.Above may be used
In the embodiment of choosing, is added lustre to film layer by the film layer and second of adding lustre to of the first glue layer bonding first, pass through the second glue layer and bond
Second adds lustre to film layer and diffusion layer, the setting can ensure when carrying out bending process first add lustre to film layer, second add lustre to film layer
The compactness combined with diffusion layer is not susceptible to the phenomenon that film layer is peeled off and tilted.
In some optional embodiments, diffusion layer 20 includes glue, wherein the type of glue includes ultraviolet light (UV)
Glue.In the present embodiment, diffusion layer does not include diffusion particle, and dispersal pattern belongs to no Particle diffusion.It should be noted that this hair
The type of glue in bright embodiment is not limited with UV glue, and those skilled in the art can be replaced with the prior art.
In some optional embodiments, diffusion layer 20 includes glue and diffusion particle.Wherein, the type of glue includes purple
The material of outer light (UV) glue etc., diffusion particle includes acrylic material (PMMA), nylon etc..In the present embodiment, the expansion of diffusion layer
Scattered pattern, which belongs to, Particle diffusion.Compared to no Particle diffusion, there is Particle diffusion that can make light that more reflect, instead occur
The phenomenon that penetrating with scattering, reaches better light diffusion effect.It should be noted that the type of the glue in the embodiment of the present invention
It is not limited with UV glue, the material of diffusion particle is not limited with PMMA and nylon, and those skilled in the art can use existing
Technology is replaced.
In some optional embodiments, the material of substrate 10 is transparent material in curved surface composite membrane 1, such as poly- to benzene two
Formic acid second diester (PET) material etc., and be not limited.
In some optional embodiments, as shown in Figure 4 and Figure 5, Fig. 4 is a kind of backlight mould provided in an embodiment of the present invention
The schematic top plan view of group, Fig. 5 is a kind of diagrammatic cross-section of the BB ' lines along Fig. 4, and light guide plate 2 is close to the surface of curved surface composite membrane 1
It is provided with laciniation 221.
Optionally, referring to FIG. 5, laciniation 221 is V-groove.The structure design can make light in leaded light
After intralamellar part carries out multiple total reflection, a uniform area source is obtained in the light-emitting surface of light guide plate, by controlling the distribution of ditch trough
The uniformity and directionality of density and geometric configuration control light extraction.
It should be noted that the present embodiment to laciniation only by taking V-groove as an example, but not limited to this.Moreover,
The embodiment of the present invention is also not specifically limited the parameter of laciniation：By taking V-type cutting as an example, above-mentioned parameter may include cutting
Width, depth, the density of cutting arrangement, the mode (such as longitudinally, laterally or intersection) of arrangement, those skilled in the art can
It is selected with reference to the prior art and product demand.
In some optional embodiments, with continued reference to FIG. 5, surface of the light guide plate 2 far from curved surface composite membrane 1 is provided with
Site 220.The setting of site can make the light of incident light guide plate no longer into the total reflection of line discipline, but can be to leaded light
Light-emitting surface above plate projects, and the light shot of optical waveguide layer light-emitting surface can be controlled by network point density.This field
Technical staff can be adjusted the size and density of site according to product demand, and the embodiment of the present invention is limited not to this
It is fixed.
In some optional embodiments, with continued reference to FIG. 5, backlight module 100 further includes glue frame 6, reflection membrane adhesive tape 7
With shading rubber belt 5.
Optionally, the edge of the main body of backlight module 100 is provided with glue frame 6, wherein main body includes that backlight 3 (is not being schemed
Shown in 5), light guide plate 2 and curved surface composite membrane 1；Reflection membrane adhesive tape 7 is set to edge of the reflectance coating 4 close to the surface of glue frame 6.
Optionally, shading rubber belt 5 is set to the edge on surface of the curved surface composite membrane 1 far from light guide plate 2.
It should be noted that in alternative embodiments above, glue frame in backlight module, reflection membrane adhesive tape and shading rubber belt
Installation position is merely illustrative, and the present invention is not limited thereto, for example, the structure of glue frame may also include glue frame and metal frame one
Structure design etc., those skilled in the art can be adjusted according to the prior art or product demand.
The embodiment of the present invention provides a kind of manufacturing method of backlight module, is carried as shown in fig. 6, Fig. 6 is the embodiment of the present invention
A kind of flow diagram of the manufacturing method of the backlight module of confession, the manufacturing method include：
S1：Form reflectance coating；
S2：Form light guide plate；
S3：Form curved surface composite membrane；
S4：Backlight is formed in the side of backlight module.
Referring to FIG. 1, it includes sequentially forming reflectance coating 4, light guide plate 2 and curved surface composite membrane 1 to form backlight module 100.It needs
It is noted that the sequence that step S4 backlights 3 are arranged in the embodiment of the present invention is merely illustrative, those skilled in the art can be with
It is adjusted according to the prior art and product demand, the embodiment of the present invention does not limit；Meanwhile the backlight in the embodiment of the present invention
Source Type is not limited with side-light backlight, merely illustrative herein.
Optionally, " S3：Form curved surface composite membrane " include the following steps, it is carried as shown in fig. 7, Fig. 7 is the embodiment of the present invention
A kind of flow diagram of curved surface composite membrane is formed in the manufacturing method of confession：
S31：Form substrate；
S32：Diffusion layer is formed in substrate；
S33：Film layer of adding lustre to is formed on diffusion layer.
It please refers to Fig.3, wherein the substrate 10 of formation is planar, and the film layer 40 of adding lustre to of formation is curved, the expansion of formation
It is plane to dissipate layer 20 close to the surface of substrate 10, and the diffusion layer 20 of formation is curved surface far from the surface of substrate 10.
It is curved that the surface formed in planar substrate is that the diffusion layer of plane and structure that a surface is curved surface constitutes
The basis of bent backlight module can need the difficulty being bent to light guide plate to avoid being formed in the prior art when bending backlight module
Topic reduces the difficulty and process costs of bending backlight module manufacture.
In some optional embodiments, referring to FIG. 3, " S3：Form curved surface composite membrane " further include：Form glue layer
30.Glue layer is formed in curved surface composite membrane can ensure that each membrane material is compact when carrying out bending process and be not readily separated that improvement is existing
The phenomenon that membrane material is peeled off or is tilted in technology.
In some optional embodiments, with continued reference to FIG. 3, film layer 40 of adding lustre to is added lustre to film layer 41 and including first
Two add lustre to film layer 42；Glue layer 30 includes the first glue layer 31 and the second glue layer 32.As shown in figure 8, Fig. 8 is implementation of the present invention
Another flow diagram of curved surface composite membrane, " S3 are formed in the manufacturing method that example provides：Form curved surface composite membrane " include with
Lower step：
S31：Form substrate；
S32：Diffusion layer is formed in substrate；
S331：It forms second on diffusion layer to add lustre to film layer, wherein pass through the second glue layer and be bonded diffusion layer and second and increase
Light film layer；
S332：Add lustre to second and form first in film layer and add lustre to film layer, wherein passes through the second glue layer fitting described second
Bright enhancement film and first adds lustre to film layer.
In alternative embodiments above, is added lustre to film layer by the film layer and second of adding lustre to of the first glue layer bonding first, passed through
Second glue layer bonding second adds lustre to film layer and diffusion layer, which can ensure the first bright enhancement film when carrying out bending process
Layer, second are added lustre to the compactness that film layer and diffusion layer combine, and the phenomenon that film layer is peeled off and tilted is not susceptible to.
In some optional embodiments, " S32：Diffusion layer is formed in substrate " include：The glue coating in substrate,
Make side of the glue far from substrate shape in curved surface.
In some optional embodiments, " S32：Diffusion layer is formed in substrate " include：The glue coating in substrate,
Make side of the glue far from substrate shape in curved surface, wherein diffusion particle is added in glue.The step for adding diffusion particle
Light can be made there is a phenomenon where more refractions, reflection and scattering, reach better light diffusion effect.
It should be noted that can be adjusted in the thickness on base plane by controlling glue in the embodiment of the present invention
The radian of whole curved surface, such as center thickness are big, and marginal position thickness is small or center thickness is small, and marginal position is thick
Degree is big, and the present invention does not limit this.For the type of glue and/or diffusion particle, details are not described herein again, is stated before can refer to
It is bright.
In some optional embodiments, referring to FIG. 5,3 (not shown) of backlight, light guide plate 2 and curved surface composite membrane 1
The main body of backlight module is formed, backlight module 100 further includes reflection membrane adhesive tape 7, glue frame 6 and shading rubber belt 5.As shown in figure 9, figure
9 be another flow diagram of the manufacturing method of backlight module provided in an embodiment of the present invention, the manufacturing method of backlight module
Including：
S1：Form reflectance coating；
S12：In reflectance coating close to the edge setting reflection membrane adhesive tape on the surface of glue frame；
S13：Glue frame is arranged in body rim around backlight module；
S2：Form light guide plate；
S3：Form curved surface composite membrane；
S4：Backlight is formed in the side of backlight module；
S5：At the edge on surface of the curved surface composite membrane far from light guide plate, shading rubber belt is set.
It can play the role of support in the edge setting glue frame of the main body of backlight module and protect internal component；Reflectance coating
Adhesive tape is for being bonded the reflectance coating and the glue frame；At the edge on surface of the curved surface composite membrane far from light guide plate, shading glue is set
Band plays fixed, interception (covering marginal ray and the light of lamp position).It should be noted that in the embodiment of the present invention not to S12,
The step of S13, sequence did any restriction, and those skilled in the art can voluntarily adjust according to the prior art and product demand.
The embodiment of the present invention provides a kind of display device, and as shown in Figure 10, Figure 10 is one kind provided in an embodiment of the present invention
The structural schematic diagram of display device, display device 300 (are not being schemed including any one backlight module provided in an embodiment of the present invention
In show) and display panel 200.Display device provided by the invention, can be curved in generation to avoid backlight module in display device
The deficiency that the membrane material caused when bent is peeled off or tilted, improves the stability that display device uses；It simultaneously need not be to backlight
Light guide plate in module carries out bending process, reduces the manufacturing cost of display device.
It is provided for the embodiments of the invention backlight module above and manufacturing method, display device are described in detail,
Principle and implementation of the present invention are described for specific case used herein, and the explanation of above example is only used
In facilitating the understanding of the method and its core concept of the invention；Meanwhile for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as
Limitation of the present invention.
Claims (19)
1. a kind of backlight module, including light guide plate, backlight, reflectance coating, which is characterized in that
The backlight module further includes curved surface composite membrane；
The curved surface composite membrane includes the substrate set gradually, diffusion layer and film layer of adding lustre to；
Film layer of the adding lustre to shape in curved surface, the substrate are in planar, and the diffusion layer is in plane close to the surface of the substrate,
Surface of the diffusion layer far from the substrate is in curved surface；
The light guide plate is in planar；
The backlight module sets gradually the reflectance coating, the light guide plate and the curved surface composite membrane.
2. backlight module as described in claim 1, which is characterized in that the curved surface composite membrane further includes glue layer.
3. backlight module as claimed in claim 2, which is characterized in that
The film layer of adding lustre to includes：First film layer and second of adding lustre to is added lustre to film layer, and the glue layer includes the first glue layer and the
Two glue layers；
The curved surface composite membrane includes the substrate set gradually, the diffusion layer, second glue layer, second increasing
Light film layer, first glue layer and described first are added lustre to film layer.
4. backlight module as described in claim 1, which is characterized in that the diffusion layer includes glue.
5. backlight module as described in claim 1, which is characterized in that the diffusion layer includes glue and diffusion particle.
6. backlight module as described in claim 1, which is characterized in that the light guide plate is close to the surface of the curved surface composite membrane
It is provided with laciniation.
7. backlight module as described in claim 1, which is characterized in that surface of the light guide plate far from the curved surface composite membrane
It is provided with site.
8. backlight module as described in claim 1, which is characterized in that the substrate is transparent material.
9. backlight module as described in claim 1, which is characterized in that
Further include glue frame and reflection membrane adhesive tape；
The edge of the main body of the backlight module is provided with the glue frame, wherein the main body includes the backlight, described leads
Tabula rasa and the curved surface composite membrane；
The reflection membrane adhesive tape is set to edge of the reflectance coating close to the surface of the glue frame.
10. backlight module as described in claim 1, which is characterized in that further include shading rubber belt, the shading rubber belt is set to
The edge on the surface of the curved surface composite membrane far from the light guide plate.
11. a kind of manufacturing method of backlight module, which is characterized in that including：
Sequentially form reflectance coating, light guide plate and curved surface composite membrane；
Backlight is formed in the side of the backlight module；
The formation curved surface composite membrane includes forming substrate, diffusion layer, film layer of adding lustre to, wherein the substrate of formation is plane
Shape, the film layer of adding lustre to of formation are curved, and the diffusion layer of formation is plane close to the surface of the substrate, formation
Surface of the diffusion layer far from the substrate is curved surface.
12. manufacturing method as claimed in claim 11, which is characterized in that the formation curved surface composite membrane further includes forming glue
Layer.
13. manufacturing method as claimed in claim 12, which is characterized in that
The film layer of adding lustre to is added lustre to film layer including the first film layer and second of adding lustre to；
The glue layer includes the first glue layer and the second glue layer.
14. manufacturing method as claimed in claim 13, which is characterized in that the formation curved surface composite membrane includes successively：
Form the substrate；
Diffusion layer is formed on the substrate；
It forms described second on the diffusion layer to add lustre to film layer, wherein pass through second glue layer and be bonded the diffusion layer
Add lustre to film layer with described second；
Add lustre to described second and form described first in film layer and add lustre to film layer, wherein described in second glue layer fitting
Second bright enhancement film and described first adds lustre to film layer.
15. manufacturing method as claimed in claim 11, which is characterized in that it is described on the substrate formed diffusion layer include：
Glue coating on the substrate so that side of the glue far from substrate shape in curved surface.
16. manufacturing method as claimed in claim 11, which is characterized in that it is described on the substrate formed diffusion layer include：
Glue coating on the substrate so that side of the glue far from substrate shape in curved surface, wherein add in the glue
Added with diffusion particle.
17. manufacturing method as claimed in claim 11, which is characterized in that the backlight, the light guide plate and the curved surface
Composite membrane forms the main body of the backlight module, and the manufacturing method further includes：
At the edge of the main body, glue frame is set；
In the reflectance coating close to the edge setting reflection membrane adhesive tape on the surface of the glue frame.
18. manufacturing method as claimed in claim 11, which is characterized in that the manufacturing method further includes：
At the edge on the surface of the curved surface composite membrane far from the light guide plate, shading rubber belt is set.
19. a kind of display device, which is characterized in that including the backlight module described in claim 1~10 any one.
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| CN114038320A (en) * | 2021-11-19 | 2022-02-11 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN108563065B (en) | 2022-01-07 |
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