CN106908874A - A kind of composite brightening film and backlight module - Google Patents
A kind of composite brightening film and backlight module Download PDFInfo
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- CN106908874A CN106908874A CN201610023459.2A CN201610023459A CN106908874A CN 106908874 A CN106908874 A CN 106908874A CN 201610023459 A CN201610023459 A CN 201610023459A CN 106908874 A CN106908874 A CN 106908874A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
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Abstract
The present invention relates to optics technical field of membrane, more particularly to a kind of composite brightening film and backlight module.In order to the thickness for solving existing backlight module is higher, the complicated problem of assembling procedure, the present invention provides a kind of composite brightening film and backlight module.The composite membrane includes the first prism film, the first tack coat, the second prism film, the second tack coat, prism film successively；The prism film includes Rhizoma Sparganii mirror layer, the 3rd PET base material layer and back coating；The Rhizoma Sparganii mirror layer is made up of some prisms article and some diffusion regions, and the prism article and diffusion region are alternately arranged.The composite brightening film has blast and diffusion, after being assembled into backlight module, do not install diffusion barrier, reduces the thickness of backlight module, and with preferable briliancy, uniformity and covering.
Description
Technical field
The present invention relates to optics technical field of membrane, more particularly to a kind of composite brightening film and backlight module.
Background technology
Backlight module is mainly made up of reflectance coating, light guide plate, diffusion barrier and brightness enhancement film, and its development trend exists
Performance and make its lightening in improving.At present, generally a diffusion barrier is first placed in the top of light guide plate to increase
Plus shielding, then place two brightness of the orthogonal brightness enhancement films increase backlight module of prism angle.It is many
Tunic is stacked together and is susceptible to friction and mutual scratch, and increased the thickness of backlight module, film layer
Stack the assembling for being also not easy to backlight module.
The content of the invention
In order to the thickness for solving existing backlight module is higher, the complicated problem of assembling procedure, the present invention is provided
A kind of composite brightening film and backlight module.The composite brightening film has blast and diffusion, is assembled into the back of the body
After light module, do not install diffusion barrier, reduce the thickness of backlight module, and with preferable briliancy,
Uniformity and covering.
In order to solve the above-mentioned technical problem, the present invention provides following technical proposals：
The present invention provides a kind of composite brightening film, and the composite membrane includes that the first prism film, first are glued successively
Knot layer, the second prism film, the second tack coat, prism film；The prism film includes Rhizoma Sparganii
Mirror layer, the 3rd PET base material layer and back coating；The Rhizoma Sparganii mirror layer is by some prisms article and some
Diffusion region constitutes, and the prism article and diffusion region are alternately arranged.
Further, the composite membrane successively include the first prism film, the first tack coat, the second prism film,
Second tack coat, prism film；First prism film includes the first layers of prisms and the first PET base material
Layer；Second prism film includes the second layers of prisms and the second PET base material layer；The prism film bag
Include Rhizoma Sparganii mirror layer, the 3rd PET base material layer and back coating；First PET base material layer is glued by first
Knot layer is bonded together with the second layers of prisms, and second PET base material layer passes through the second tack coat and the 3rd
Layers of prisms is bonded together；First layers of prisms is made up of some first prism bars；Second prism
Layer is made up of some second prism bars；The Rhizoma Sparganii mirror layer is by some prisms article and some diffusion regions
Composition, the prism article and diffusion region are alternately arranged.
Further, the diffusion region is made up of bulge-structure, and the height of the bulge-structure is 1-6 μm.
First prism bar, the second prism bar, the cross section of prism article are respectively isosceles right angle three
Angular, drift angle is right angle.
First prism bar has height crest line higher, and two height for being located at the crest line left and right sides
Relatively low valley line, the valley line of the first adjacent prism bar coincides.
Second prism bar has height crest line higher, and two height for being located at the crest line left and right sides
Relatively low valley line, the valley line of the second adjacent prism bar coincides.
First tack coat and the second tack coat are referred to as tack coat.
First PET base material layer, the second PET base material layer and the 3rd PET base material layer are referred to as base material
Layer.
Further, first PET base material layer, the second PET base material layer and the 3rd PET base material layer
Thickness be respectively 50 μm -75 μm.
First adhesive layer thickness is less than 2 μm.The thickness of second tack coat is less than 2 μm.
Further, in described composite brightening film, first layers of prisms, the second layers of prisms,
The material of Rhizoma Sparganii mirror layer is respectively selected from acrylic resin.
Further, the integral thickness of the composite brightening film is 200-330 μm.
Further, in described composite brightening film, the cross section of the first prism bar and the second prism bar
Respectively isosceles right triangle, drift angle are right angle, and the width of prism bar is 20-50 μm.
Further, the first prism bar is identical with the second prism bar.
Further, in described composite brightening film, first prism bar and the second prism bar are mutual
Vertically.
Further, in described composite brightening film, the material of first tack coat and the second tack coat
Material is respectively selected from acrylic resin.
The acrylic resin is selected from polyurethane acrylate resin, Epocryl or polyester third
Alkene acid ester resin.
Further, in described composite brightening film, the cross section of the prism article is that isosceles are straight
Angle triangle, drift angle are right angle, and width is 50-75 μm；The diffusion region is made up of bulge-structure, diffusion
The width in area is 150-250 μm.
Further, in prism film, the surface of the diffusion region is irregular convex surfaces, convex
It is 1-6 μm to play height.
Further, in described composite brightening film, the bulge-structure is circular protrusions structure, institute
State circular protrusions structure a diameter of 5-40 μm, is highly 1-6 μm.
Further, in described composite brightening film, the bulge-structure is circular protrusions structure, institute
State circular protrusions structure a diameter of 5-10 μm, is highly 1-6 μm.
Further, in described composite brightening film, the back coating includes adhesive and organic filler,
The content of the adhesive is 80-85%, and the content of the organic filler is 15-20%；The back coating
Thickness is 10-18 μm.
Further, in described composite brightening film, the adhesive in the back coating is selected from acrylic acid
Resin, the organic filler in back coating is polymethyl methacrylate (PMMA) and polymethylacrylic acid
The mixture of butyl ester (PBMA), the particle diameter of the organic filler is 100nm-10 μm, the PMMA
It is 1 with the weight ratio of PBMA:1.
Further, in back coating, the particle diameter of the organic filler is 1-10 μm.
Further, in described composite brightening film, the first prism bar is identical with the second prism bar, institute
The cross section of prism bar is stated for isosceles right triangle, drift angle are right angle, the width of prism bar is 40-50 μm.
The cross section of the prism article is isosceles right triangle, drift angle is right angle, and width is 65-75 μm；
The diffusion region is made up of bulge-structure, and the width of diffusion region is 200-220 μm.The back coating thickness is
15-18μm.In back coating, the particle diameter of the organic filler is 1-10 μm.Adhesive in back coating
Content be 85%, the content of organic filler PMMA and PBMA is respectively 7.5%.The raised knot
Structure is circular protrusions structure, and a diameter of 5-10 μm of the circular protrusions structure, be highly 1-6 μm.
The thickness difference of first PET base material layer, the second PET base material layer and the 3rd PET base material layer
It is 50 μm -55 μm.
The present invention also provides a kind of backlight module, and the backlight module includes described composite brightening film, institute
Stating backlight module does not include upper diffusion barrier.
The preparation method of above-mentioned composite brightening film comprises the steps：Using different structure rods, three are made
Prism film is opened, first the first prism film and the second prism film is bonded together, then bonds prism film,
It is made composite membrane.The diffusion structure on mould roller that the Rhizoma Sparganii mirror layer of prism film is used is similar to spray
Irregular concave point after sand.
The prism film of above-mentioned composite brightening film has the effect of blast and diffusion, and back coating also add
Certain shielding.The blast of the above-mentioned composite brightening film design integrated with diffusion, reduces backlight mould
The thickness of group, ease of assembly, while the friction between avoiding film layer, improves service life.
Compared with existing brightness enhancement film, the composite brightening film that the present invention is provided can substitute two and be disposed vertically
Brightness enhancement film and a upper diffusion barrier.The present invention provide composite brightening film provide luminance gain while,
The thickness of backlight module is reduced, its shielding is increased, and be easy to assembling.
Compared with existing backlight module, the backlight module thickness that the present invention is provided is low, and briliancy is higher, homogeneous
The good, shielding of property is good, easy to assembly.
Brief description of the drawings
A kind of structural representation of composite brightening film that Fig. 1 is provided for the present invention；
The structural representation of prism film in a kind of composite brightening film that Fig. 2 is provided for the present invention；
The laser microscope on the surface of Rhizoma Sparganii mirror layer in a kind of composite brightening film that Fig. 3 is provided for the present invention
Image.
Specific embodiment
For the functional character and advantage that are more readily understood structure of the invention and to be reached, hereafter this is sent out
Bright preferred embodiment, and coordinate schema to be described below in detail：
As depicted in figs. 1 and 2, the composite brightening film that the present invention is provided includes the first prism film, the successively
One tack coat 3, the second prism film, the second tack coat 6, prism film；First prism film includes
First layers of prisms 1 and the first PET base material layer 2；Second prism film includes the second layers of prisms 4 and the
Two PET base material layers 5；The prism film includes Rhizoma Sparganii mirror layer 7, the and of the 3rd PET base material layer 8
Back coating 9；First PET base material layer 2 is bonded in by the first tack coat 3 with the second layers of prisms 4
Together, second PET base material layer 5 is bonded together by the second tack coat 6 with Rhizoma Sparganii mirror layer 7；
First layers of prisms 1 is made up of some first prism bars 10；Second layers of prisms 4 is by some second
Prism bar 20 is constituted；The Rhizoma Sparganii mirror layer 7 is by 40 groups of some prisms article 30 and some diffusion regions
Into the prism article 30 and diffusion region 40 are alternately arranged.
The cross section of first prism bar, the second prism bar and prism article is isosceles right angle trigonometry
Shape, drift angle is right angle.
The diffusion region 40 is made up of bulge-structure 401, and the width of diffusion region 40 is 150-250 μm.
The bulge-structure 401 be circular protrusions structure, a diameter of 5-40 μm of the circular protrusions structure,
Highly it is 1-6 μm.
As shown in figure 3, the Rhizoma Sparganii mirror layer 7 is made up of prism article 30 and diffusion region 40；Institute
The surface of diffusion region is stated for irregular convex surfaces, height of projection is 1-6 μm.
The composite brightening film (abbreviation composite membrane) that the present invention is provided, main performance is tested using following methods.
1st, briliancy：Using Fu Shida BM-7 brightness photometers, composite membrane is arranged on 32 cun of downward back optical modes
In group, diffusion barrier is not placed, light-emitting area is divided into 3 × 39 areas, measure 9 designated areas
In each briliancy and obtain the uniformity of average luminance and briliancy.
Average luminance is that the brightness value in 9 regions is averaged.
During center briliancy refers to 9 regions, the brightness value of central area.
Uniformity is the ratio of minimum brightness value and highest brightness value, also can directly be read by brightness photometer.
2nd, shielding：The composite membrane that will be cut out is assembled in down straight aphototropism mode set, lights the backlight module back of the body
After light, vertical angle observes the covering power to light source.The obvious profile of light source can be seen is shielding
It is poor, it is impossible to see light source apparent contour preferably.Composite brightening film is better to the light diffusing of light source,
Then shielding is better.
Embodiment 1
The composite brightening film that the present invention is provided, the composite membrane includes that the first prism film, first bond successively
Layer, the second prism film, the second tack coat, prism film；First prism film includes the first prism
Layer and the first PET base material layer；Second prism film includes the second layers of prisms and the second PET base material layer；
The prism film includes Rhizoma Sparganii mirror layer, the 3rd PET base material layer and back coating；First PET
Substrate layer is bonded together by the first tack coat with the second layers of prisms, and second PET base material layer passes through
Second tack coat is bonded together with Rhizoma Sparganii mirror layer；First layers of prisms is by some first prism bar groups
Into；Second layers of prisms is made up of some second prism bars；The Rhizoma Sparganii mirror layer is by some Rhizoma Sparganiis
Mirror bar and some diffusion regions constitute, and the prism article and diffusion region are alternately arranged.First prism
Article, the cross section of the second prism bar and prism article be isosceles right triangle, drift angle is right angle.
Wherein,
The thickness of the first PET base material layer is 50 μm, and the second PET base material layer thickness is 50 μm, the 3rd
PET base material layer thickness is 50 μm, and back coating thickness is 10-14 μm.
First prism bar is 20 μm with the prism width of the second prism bar.
The prism width of prism article is 75 μm, and the width of diffusion region is 200 μm.
The bulge-structure is circular protrusions structure, a diameter of 5-40 μm of the circular protrusions structure, high
Spend is 1-6 μm.
In the composite membrane, the adhesive in layers of prisms, tack coat and back coating uses acrylic resin.
The content of the adhesive in back coating is that the content of 85%, PMMA and PBMA is respectively 7.5%.
The particle diameter of the organic filler is 100nm-500nm.
Embodiment 2
The composite brightening film that such as embodiment 1 is provided, wherein,
The thickness of the first PET base material layer is 50 μm, and the second PET base material layer thickness is 50 μm, the 3rd
PET base material layer thickness is 50 μm, and back coating thickness is 15-18 μm.
First prism bar is 44 μm with the prism width of the second prism bar.
The prism width of prism article is 75 μm.The width of diffusion region is 200 μm.
The bulge-structure is circular protrusions structure, a diameter of 5-40 μm of the circular protrusions structure, high
Spend is 1-6 μm.
The content of the adhesive in back coating is that the content of 85%, PMMA and PBMA is respectively 7.5%.
The particle diameter of the organic filler is 600nm-900nm.
Embodiment 3
The composite brightening film that such as embodiment 1 is provided, wherein,
The thickness of the first PET base material layer is 50 μm, and the second PET base material layer thickness is 50 μm, the 3rd
PET base material layer thickness is 50 μm, and back coating thickness is 15-18 μm.
First prism bar is 50 μm with the prism width of the second prism bar.
The prism width of prism article is 75 μm, and the width of diffusion region is 200 μm.
The bulge-structure is circular protrusions structure, a diameter of 5-10 μm of the circular protrusions structure, high
Spend is 1-6 μm.
The content of the adhesive in back coating is that the content of 85%, PMMA and PBMA is respectively 7.5%.
The particle diameter of the organic filler is 1 μm -10 μm.
Embodiment 4
The composite brightening film that such as embodiment 1 is provided, wherein,
The thickness of the first PET base material layer is 50 μm, and the second PET base material layer thickness is 50 μm, the 3rd
PET base material layer thickness is 50 μm, and back coating thickness is 15-18 μm.
First prism bar is 20 μm with the prism width of the second prism bar.
The prism width of prism article is 50 μm, and the width of diffusion region is 200 μm.
The bulge-structure is circular protrusions structure, a diameter of 5-10 μm of the circular protrusions structure, high
Spend is 1-6 μm.
The content of the adhesive in back coating is that the content of 85%, PMMA and PBMA is respectively 7.5%.
The particle diameter of the organic filler is 1 μm -10 μm.
Embodiment 5
The composite brightening film that such as embodiment 1 is provided, wherein,
The thickness of the first PET base material layer is 50 μm, and the second PET base material layer thickness is 50 μm, the 3rd
PET base material layer thickness is 75 μm, and back coating thickness is 15-18 μm.
First prism bar is 50 μm with the prism width of the second prism bar.
The prism width of prism article is 75 μm, and the width of diffusion region is 200 μm.
The bulge-structure is circular protrusions structure, a diameter of 5-40 μm of the circular protrusions structure, high
Spend is 1-6 μm.
The content of the adhesive in back coating is that the content of 80%, PMMA and PBMA is respectively 10%.
The particle diameter of the organic filler is 1 μm -4 μm.
Embodiment 6
The composite brightening film that such as embodiment 1 is provided, wherein,
The thickness of the first PET base material layer is 50 μm, and the second PET base material layer thickness is 50 μm, the 3rd
PET base material layer thickness is 75 μm, and back coating thickness is 15-18 μm.
First prism bar is 50 μm with the prism width of the second prism bar.
The prism width of prism article is 75 μm, and the width of diffusion region is 150 μm.
The bulge-structure is circular protrusions structure, a diameter of 5-40 μm of the circular protrusions structure, high
Spend is 1-6 μm.
The content of the adhesive in back coating is that the content of 82%, PMMA and PBMA is respectively 9%.
The particle diameter of the organic filler is 100nm-5 μm.
Embodiment 7
The composite brightening film that such as embodiment 1 is provided, wherein, the thickness of the first PET base material layer is 50 μm,
Second PET base material layer thickness is 50 μm, and the 3rd PET base material layer thickness is 75 μm, and back coating thickness is
15-18μm。
First prism bar is 50 μm with the prism width in the second prism bar.
The prism width of prism article is 75 μm, and the width of diffusion region is 250 μm.
The bulge-structure is circular protrusions structure, a diameter of 20-40 μm of the circular protrusions structure, high
Spend is 1-6 μm.
The content of the adhesive in back coating is that the content of 85%, PMMA and PBMA is respectively 7.5%.
The particle diameter of the organic filler is 4 μm -8 μm.
Embodiment 8
The composite brightening film that such as embodiment 1 is provided, wherein,
The thickness of the first PET base material layer is 75 μm, and the second PET base material layer thickness is 75 μm, the 3rd
PET base material layer thickness is 75 μm, and back coating thickness is 15-18 μm.
First prism bar is 50 μm with the prism width in the second prism bar.
Prism width on prism article is 75 μm, and the width of diffusion region is 200 μm.
The bulge-structure is circular protrusions structure, a diameter of 15-40 μm of the circular protrusions structure, high
Spend is 1-6 μm.
The content of the adhesive in back coating is that the content of 85%, PMMA and PBMA is respectively 7.5%.
The particle diameter of the organic filler is 8 μm -10 μm.
Embodiment 9
The composite brightening film that such as embodiment 1 is provided, wherein,
The thickness of the first PET base material layer is 50 μm, and the second PET base material layer thickness is 50 μm, the 3rd
PET base material layer thickness is 55 μm, and back coating thickness is 15-18 μm.
First prism bar is 40 μm with the prism width of the second prism bar.
The prism width of prism article is 65 μm, and the width of diffusion region is 210 μm.
The bulge-structure is circular protrusions structure, a diameter of 5-10 μm of the circular protrusions structure, high
Spend is 1-6 μm.
The content of the adhesive in back coating is that the content of 85%, PMMA and PBMA is respectively 7.5%.
The particle diameter of the organic filler is 1 μm -10 μm.
Embodiment 10
The composite brightening film that such as embodiment 1 is provided, wherein,
The thickness of the first PET base material layer is 50 μm, and the second PET base material layer thickness is 55 μm, the 3rd
PET base material layer thickness is 55 μm, and back coating thickness is 15-18 μm.
First prism bar is 45 μm with the prism width of the second prism bar.
The prism width of prism article is 70 μm, and the width of diffusion region is 220 μm.
The bulge-structure is circular protrusions structure, a diameter of 5-10 μm of the circular protrusions structure, high
Spend is 1-6 μm.
The content of the adhesive in back coating is that the content of 85%, PMMA and PBMA is respectively 7.5%.
The particle diameter of the organic filler is 1 μm -10 μm.
Comparative example 1
Using common two panels brightness enhancement film (sun science and technology SP9BL2 long) vertical 90 degree of placements, it is placed above
Upper diffusion barrier is arranged on backlight module, using Fu Shida BM-7 brightness photometers, in 9 designated areas of measurement
Each briliancy and obtain evenness and homogeneity.Using Fu Shida BM-7 brightness photometers to it in backlight module
In correlated performance tested, while carrying out shielding test, the results are shown in Table 1.
Comparative example 2
Use common two panels brightness enhancement film (sun science and technology SP9BL2 brightness enhancement films long) vertical 90 degree of placements, peace
On backlight module, diffusion barrier is not placed, using Fu Shida BM-7 brightness photometers, measure 9 and specify
Each briliancy in region simultaneously obtains evenness and homogeneity.Using Fu Shida BM-7 brightness photometers to it in the back of the body
Correlated performance in light module is tested, while carrying out shielding test, the results are shown in Table 1.
Comparative example 3
Using the common vertical 90 degree of placements of two panels brightness enhancement film (LGE companies EOS-S10 brightness enhancement films),
Diffusion barrier is placed above on backlight module, using Fu Shida BM-7 brightness photometers, 9 fingers is measured
Determine each briliancy in region and obtain evenness and homogeneity.Using Fu Shida BM-7 brightness photometers to its
Correlated performance in backlight module is tested, while carrying out shielding test, the results are shown in Table 1.
Comparative example 4
Using the common vertical 90 degree of placements of two panels brightness enhancement film (LGE companies EOS-S10 brightness enhancement films),
On backlight module, diffusion barrier is not placed, using Fu Shida BM-7 brightness photometers, measure 9 fingers
Determine each briliancy in region and obtain evenness and homogeneity.Using Fu Shida BM-7 brightness photometers to its
Correlated performance in backlight module is tested, while carrying out shielding test, the results are shown in Table 1.
The briliancy of the product that the embodiment 1-10 of table 1 and comparative example 1-4 are provided, homogeneity, shielding and the back of the body
Light module thickness measuring
In table 1, the thickness of backlight module is only the module thickness above diffuser plate in embodiment, that is, implement
The thickness of the brightness enhancement film that example is provided.The thickness of backlight module is only the module thickness above diffuser plate in comparative example
The thickness of degree, as two brightness enhancement films or two brightness enhancement films plus diffusion barrier.
Can be drawn from testing result shown in table 1, the briliancy obtained using the composite brightening film in the present invention
Briliancy with traditional backlight module is approached, and has preferable homogeneity.Compared with the framework for not adding diffusion barrier,
Shielding is good, practical.Also, three laminatings of prism film, reduce the thickness of backlight module,
While ease of assembly.Wherein, the synthesis of the brightness enhancement film that embodiment 3, embodiment 9 and embodiment 10 are provided
Performance is more preferable.
The above, only presently preferred embodiments of the present invention is not intended to limit protection of the invention
Scope.Every impartial change done according to present invention and modification, are encompassed by patent of the invention
In the range of.
Claims (10)
1. a kind of composite brightening film, it is characterised in that the composite membrane includes that the first prism film, first bond successively
Layer, the second prism film, the second tack coat, prism film；The prism film include Rhizoma Sparganii mirror layer,
3rd PET base material layer and back coating；The Rhizoma Sparganii mirror layer is by some prisms article and some diffusion district's groups
Into the prism article and diffusion region are alternately arranged.
2. composite brightening film according to claim 1, it is characterised in that the composite membrane includes first successively
Prism film, the first tack coat, the second prism film, the second tack coat, prism film；First prism
Film includes the first layers of prisms and the first PET base material layer；Second prism film includes the second layers of prisms and second
PET base material layer；The prism film includes Rhizoma Sparganii mirror layer, the 3rd PET base material layer and back coating；Institute
State the first PET base material layer to be bonded together with the second layers of prisms by the first tack coat, the 2nd PET
Substrate layer is bonded together by the second tack coat and Rhizoma Sparganii mirror layer；First layers of prisms is by some first
Prism bar is constituted；Second layers of prisms is made up of some second prism bars；The Rhizoma Sparganii mirror layer is by some
Prism article and some diffusion regions constitute, and the prism article and diffusion region are alternately arranged.
3. composite brightening film according to claim 2, it is characterised in that the first prism bar and the second prism bar
Cross section be respectively isosceles right triangle, drift angle for right angle, the width of prism bar is 20-50 μm.
4. composite brightening film according to claim 2, it is characterised in that first prism bar and the second rib
Mirror bar is mutually perpendicular to.
5. composite brightening film according to claim 1, it is characterised in that the material choosing of the Rhizoma Sparganii mirror layer
From acrylic resin.
6. composite brightening film according to claim 1, it is characterised in that the cross section of the prism article
For isosceles right triangle, drift angle are right angle, width is 50-75 μm；The diffusion region is by bulge-structure group
Into the width of diffusion region is 150-250 μm.
7. composite brightening film according to claim 6, it is characterised in that the bulge-structure is circular protrusions
Structure, a diameter of 5-40 μm of the circular protrusions structure, be highly 1-6 μm.
8. composite brightening film according to claim 6, it is characterised in that the bulge-structure is circular protrusions
Structure, a diameter of 5-10 μm of the circular protrusions structure, be highly 1-6 μm.
9. composite brightening film according to claim 1, it is characterised in that the back coating include adhesive and
Organic filler, the content of the adhesive is 80-85%, and the content of the organic filler is 15-20%；Institute
Back coating thickness is stated for 10-18 μm.
10. a kind of backlight module, it is characterised in that the backlight module includes the compound increasing described in claim 1
Bright film, the backlight module does not include upper diffusion barrier.
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| CN108761589A (en) * | 2018-05-23 | 2018-11-06 | 惠州市创亿达新材料有限公司 | The high light diffusion feature board of high fog |
| CN108897083A (en) * | 2018-08-28 | 2018-11-27 | 张家港康得新光电材料有限公司 | A kind of optical compound film and preparation method thereof |
| CN108957606A (en) * | 2018-07-05 | 2018-12-07 | 深圳创维－Rgb电子有限公司 | A kind of design method and compound film sheet of compound film sheet |
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| CN109752781A (en) * | 2017-11-03 | 2019-05-14 | 友辉光电股份有限公司 | The optical module used in backlight module |
| CN108761589A (en) * | 2018-05-23 | 2018-11-06 | 惠州市创亿达新材料有限公司 | The high light diffusion feature board of high fog |
| US11947137B2 (en) | 2018-07-05 | 2024-04-02 | Shenzhen Skyworth-Rgb Electronic Co., Ltd | Method for composite membrane and composite membrane |
| CN108957606A (en) * | 2018-07-05 | 2018-12-07 | 深圳创维－Rgb电子有限公司 | A kind of design method and compound film sheet of compound film sheet |
| WO2020007233A1 (en) * | 2018-07-05 | 2020-01-09 | 深圳创维－Rgb电子有限公司 | Design method for composite membrane and composite membrane |
| CN108897083A (en) * | 2018-08-28 | 2018-11-27 | 张家港康得新光电材料有限公司 | A kind of optical compound film and preparation method thereof |
| CN109597243A (en) * | 2018-12-27 | 2019-04-09 | 凯鑫森(上海)功能性薄膜产业有限公司 | Liquid crystal display laminating film and LCD backlight mould group |
| CN109827148A (en) * | 2019-04-16 | 2019-05-31 | 凯鑫森(上海)功能性薄膜产业有限公司 | The even smooth film of LED illumination and its lamps and lanterns mould group |
| CN109827148B (en) * | 2019-04-16 | 2024-04-12 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | Uniform light film for LED illumination and lamp module thereof |
| CN110879432A (en) * | 2019-12-13 | 2020-03-13 | 凯鑫森(上海)功能性薄膜产业有限公司 | Three-structure layer diffusion-free plate type adhesive film for liquid crystal display |
| CN110879432B (en) * | 2019-12-13 | 2023-08-18 | 凯鑫森(上海)功能性薄膜产业股份有限公司 | Three-structure-layer diffusion-free plate type laminating film for liquid crystal display |
| CN111025440A (en) * | 2019-12-31 | 2020-04-17 | 凯鑫森(上海)功能性薄膜产业有限公司 | Prism structure for laminating film and processing method and application thereof |
| CN112711086B (en) * | 2021-01-05 | 2022-05-27 | 常州华威新材料有限公司 | Brightness enhancement film with high resilience and high luminance |
| CN112711086A (en) * | 2021-01-05 | 2021-04-27 | 常州华威新材料有限公司 | Brightness enhancement film with high resilience and high brightness |
| CN114114756A (en) * | 2021-12-09 | 2022-03-01 | 常州华威新材料有限公司 | Interference-relieving and pressure-resisting brightness enhancement film and preparation method thereof |
| CN114114487A (en) * | 2021-12-09 | 2022-03-01 | 常州华威新材料有限公司 | Anti-adsorption brightness enhancement film capable of improving brightness and preparation method thereof |
| CN114114756B (en) * | 2021-12-09 | 2023-10-03 | 常州华威新材料有限公司 | Anti-interference and compression-resistant brightness enhancement film and preparation method thereof |
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Application publication date: 20170630 Assignee: Ningbo Changlong New Material Co.,Ltd. Assignor: NINGBO SOLARTRON TECHNOLOGY Co.,Ltd. Contract record no.: X2021330000199 Denomination of invention: Composite brightening film and backlight module Granted publication date: 20190405 License type: Common License Record date: 20210831 |