CN103439830B - A kind of multifunctional membrane being applied to sidelight type backlight module - Google Patents
A kind of multifunctional membrane being applied to sidelight type backlight module Download PDFInfo
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- CN103439830B CN103439830B CN201310314668.9A CN201310314668A CN103439830B CN 103439830 B CN103439830 B CN 103439830B CN 201310314668 A CN201310314668 A CN 201310314668A CN 103439830 B CN103439830 B CN 103439830B
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- 239000012528 membrane Substances 0.000 title claims abstract description 140
- 238000009792 diffusion process Methods 0.000 claims abstract description 349
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- 239000011247 coating layer Substances 0.000 claims abstract description 48
- 239000011253 protective coating Substances 0.000 claims abstract description 32
- 239000002245 particle Substances 0.000 claims description 235
- 239000000853 adhesive Substances 0.000 claims description 77
- 230000001070 adhesive Effects 0.000 claims description 77
- 238000000576 coating method Methods 0.000 claims description 53
- 239000011248 coating agent Substances 0.000 claims description 52
- 210000001519 tissues Anatomy 0.000 claims description 27
- 239000010410 layer Substances 0.000 claims description 12
- TZCXTZWJZNENPQ-UHFFFAOYSA-L Barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 8
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- 239000004793 Polystyrene Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 7
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- 239000002904 solvent Substances 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
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- 238000004026 adhesive bonding Methods 0.000 claims 1
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- 210000004379 Membranes Anatomy 0.000 description 127
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 16
- 230000000694 effects Effects 0.000 description 8
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- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 6
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- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 1
- VKEQBMCRQDSRET-UHFFFAOYSA-N Methylone Chemical compound CNC(C)C(=O)C1=CC=C2OCOC2=C1 VKEQBMCRQDSRET-UHFFFAOYSA-N 0.000 description 1
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- 239000000377 silicon dioxide Substances 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The present invention relates to display panels technical field, be specifically related to a kind of multifunctional membrane being applied to side-light backlight.Being placed on the one or both sides of light guide plate in order to solve existing side-light backlight due to lamp source, light is difficult to be evenly distributed, and causes the brightest dark problem, and the present invention provides a kind of multifunctional membrane being applied to sidelight type backlight module.Described multifunctional membrane includes that base material, the upper surface of described base material are coated with coating layer, lower surface is coated with lower protective coating;Described upper coating layer is made up of diffusion region and prism district.This multifunctional membrane can uniform light, hide shadow, improve brightness.
Description
Technical field
The present invention relates to display panels technical field, be specifically related to a kind of multifunctional membrane being applied to sidelight type backlight module
Sheet.
Background technology
Display panels has been widely used in computer, mobile phone, TV, navigator, digital camera and some instruments and has shown
On screen.Owing to liquid crystal panel self is the most luminous, and backlight module is as one of the critical component of display panels, just rises
The enough brightness of offer and the effect of uniform light have been provided.The backlight module of liquid crystal display the most more typically can
Being divided into straight-down negative and side-light type two kinds, down straight aphototropism mode set: be applicable to medium-and-large-sized backlight, lamp source is positioned at below light guide plate,
Typically there is the light source of more than 2, after light source emits beam, reflect light, light guide plate, diffusion barrier, prism through reflector plate
Brightness is obtained preferable, the area source of uniform light after sheet uniform light.It is high that down straight aphototropism mode set has briliancy, and angle of visibility is good
Etc. advantage, but the backlight of straight-down negative is heavier, is not suitable for those to portability and the frivolous client required.Side-light type
Backlight module: be applicable to middle-size and small-size backlight, lamp source is positioned at side or the both sides of light guide plate, and sidelight type backlight module has gently
Just, slim, energy-conservation advantage.Owing to present client is to pocket, narrow frame, light and thin type mobile phone, notebook, TV etc.
The demand of display, sidelight type backlight module increasingly receives an acclaim.
Backlight module is mainly made up of following parts: light source, lampshade, light guide plate, reflector plate, diffusion barrier, prism film
Deng.Diffusion barrier includes diffusion barrier and lower diffusion barrier.Lower diffusion barrier is typically placed in above light guide plate, has uniform light,
Hiding site and the effect of lamp shadow, prismatic lens is then placed on above lower diffusion barrier, has the effect improving front face brightness.
Sidelight type backlight module is placed on the one or both sides of light guide plate due to lamp source, and this is compared with down straight aphototropism mode set, light
It is more difficult to be evenly distributed, causes the brightest dark phenomenon.
Summary of the invention
It is difficult to be evenly distributed to solve light in existing sidelight type backlight module, causes the brightest dark defect, this
Bright propose a kind of multifunctional membrane being applied to sidelight type backlight module.This multifunctional membrane can play uniform light, hides
Lid shadow, improves the effect of brightness.
To achieve these goals, the present invention is by the following technical solutions.
The present invention provides a kind of multifunctional membrane (alternatively referred to as multi-function membrane, abbreviation film being applied to sidelight type backlight module
Sheet or thin film), described multifunctional membrane includes that base material, the upper surface of described base material are coated with coating layer, lower surface is coated with
Lower protective coating;Described upper coating layer is made up of diffusion region and prism district.Lower protective coating is by heat cure adhesive and tissue adhesion
Diffusion particle forms.Described prism district has the effect significantly improving brightness, and described diffusion region has covering shadow, uniform light
The effect of line.
Further, in described multifunctional membrane, described diffusion region is diffusion coating, and described diffusion coating includes adhesive
And diffusion particle, described diffusion particle is bonded in the surface of described base material by adhesive;Described diffusion particle is organic diffusion
Particle, or, described diffusion particle is organic diffusion particle and the mixture of inorganic diffusion particle.Described diffusion particle is ball
Shape or elliposoidal.Described diffusion particle and adhesive form diffusion coating.
Further, the base material of described multifunctional membrane selected from Merlon (PC), polyethylene terephthalate (PET),
In polyamide (PA), polystyrene (PS), polyethylene (PE), polymethyl methacrylate (PMMA) one
Kind.Described base material is water white base material (being also referred to as basement membrane, or substrate), and base material refractive index is 1.4-1.75, thickness
For 10-300 μm.Base material thickness is preferably 15-25 μm, 35-50 μm, 60-80 μm, 95-150 μm, 170-250 μm.
Further, in described multifunctional membrane, lamp source is positioned to the backlight module of light guide plate side, described upper coating
The diffusion region of layer accounts for the 1/10-4/10 of described diaphragm length, and remainder is prism district;Described diffusion region is near the one of lamp source
Side, described prism district is in the side away from lamp source;Lamp source is positioned to the backlight module of light guide plate both sides, described multifunctional membrane
The both sides of sheet are respectively arranged with a diffusion region, and each diffusion region accounts for the 1/10-3/10 of the length of described diaphragm, and centre is prism district.Institute
State that diffusion region accounts for the length of described diaphragm 1/10,2/10,3/10, or 4/10.Described diffusion region is at described multifunctional membrane
Both sides near lamp source.
Further, in described multifunctional membrane, described diffusion region (being diffusion coating) includes 100 parts by weight
Adhesive, organic diffusion particle of 30-150 parts by weight and the inorganic diffusion particle of 1-10 parts by weight.Described diffusion region
Adhesive coating layer thickness (may be simply referred to as diffusion coating thickness) is the 1/100-80/100 of diffusion particle maximum particle diameter.Described expansion
Dissipate adhesive coating layer thickness is diffusion particle maximum particle diameter the 5/100,10/100,25/100,35/100,45/100 of district,
60/100,65/100,70/100.Described adhesive is heat cure adhesive.
Further, in described multifunctional membrane, described prism district includes micro-prism structure.The height of described micro-prism structure
Degree is 5-50 μm, and corner angle are 90 °.Described micro-prism structure uses UV glue (also known as ultra-violet curing glue) to make.
Described UV glue be mainly composed of acrylic resin.
Further, in described multifunctional membrane, described lower protective coating includes adhesive and the 0.1-1 of 100 weight portions
The tissue adhesion diffusion particle of weight portion.Described adhesive is heat cure adhesive.
Further, described diffusion coating includes the adhesive of 100 parts by weight, and organic diffusion of 30-150 parts by weight
Particle.
Further, in described multifunctional membrane, described adhesive is heat cure adhesive, and described heat cure adhesive selects
One or both mixture in acrylic resin, polyurethane resin, epoxy resin.
Further, in described multifunctional membrane, described organic diffusion particle is selected from polymethyl methacrylate, poly-methyl
Butyl acrylate, polystyrene, polyorganosiloxane resin one therein or at least two.The particle diameter of described organic diffusion particle
For 1-100 μm.The particle diameter of described organic diffusion particle is 1-10 μm, 20-40 μm, 50-70 μm, or 80-90 μm.Enter
One step, described organic diffusion particle particle diameter preferred 5-25 μm.
Further, in described multifunctional membrane, described inorganic diffusion particle selected from titanium dioxide, calcium carbonate, barium sulfate,
The compositions of a kind of or at least two in the particles such as silicon dioxide.The particle diameter of described inorganic diffusion particle is 0.01-10 μm.
The particle diameter of described inorganic diffusion particle is 0.01-1 μm, 2-6 μm, or 7-9 μm.Further, described inorganic diffusion particle
Particle diameter preferably 0.05 μm-1 μm.
Further, in described multifunctional membrane, described tissue adhesion diffusion particle is organic diffusion particle, selected from poly-methyl
One in acrylic acid methyl ester., polybutyl methacrylate, polystyrene, polyorganosiloxane resin (abbreviation silicone resin)
Or the compositions of at least two.
Further, in described multifunctional membrane, described base material thickness is 50-65 μm.Light guide plate one is positioned at for lamp source
The backlight module of side, the diffusion region of described upper coating layer accounts for the 2/10-3/10 of described diaphragm length, and remainder is prism district;
Described diffusion region is in the side near lamp source, and described prism district is in the side away from lamp source;Light guide plate both sides are positioned at for lamp source
Backlight module, the both sides of described multifunctional membrane are respectively arranged with a diffusion region, and each diffusion region accounts for the length of described diaphragm
2/10-3/10, centre is prism district.Described diffusion region at described multifunctional membrane near the both sides in lamp source.Described diffusion coating
Inorganic diffusion grain including the adhesive of 100 parts by weight, organic diffusion particle of 60-65 parts by weight and 1-3 parts by weight
Son.Described organic diffusion particle particle diameter is 5-25 μm.Described inorganic diffusion particle particle diameter is 0.05-1 μm.Described prism district
Including micro-prism structure.The height of described micro-prism structure is 30-40 μm, and corner angle are 90 °.Described lower protective coating includes
The adhesive of 100 weight portions and the tissue adhesion diffusion particle of 0.5-0.6 weight portion.
Further, in described multifunctional membrane, described base material thickness is 65 μm.The diffusion region of described upper coating layer accounts for
The 3/10 of described diaphragm length, remainder is prism district;Described diffusion region is in the side near lamp source, and described prism district exists
Side away from lamp source.Described diffusion coating includes organic diffusion particle of the adhesive of 100 parts by weight, 65 parts by weight
Inorganic diffusion particle with 3 parts by weight.Described organic diffusion particle particle diameter is 20-25 μm.Described inorganic diffusion particle grain
Footpath is 0.05-1 μm.Described diffusion region coating layer thickness is 15 μm.Described prism district includes micro-prism structure.Described microprism
The height of structure is 35-40 μm, and corner angle are 90 °.Described lower protective coating includes adhesive and 0.6 weight of 100 weight portions
The tissue adhesion diffusion particle of amount part.
Further, Merlon (PC) selected by the base material of described multifunctional membrane, and organic diffusion particle selects polyphenyl second
Alkene, inorganic diffusion particle selects barium sulfate, adhesive selection acrylic resin.
Further, the present invention provides the manufacture method of above-mentioned multifunctional membrane:
(1) coating fluid of diffusion coating is configured: in adhesive, add diffusion particle, after adding solvent, be sufficiently mixed,
To diffusion layer coating fluid;
(2) diffusion region is prepared: the diffusion layer coating fluid that application step (1) prepares on the diffusion region of transparent base, and
In baking oven aging 0.5-3 hour;
(3) prepare prism district: glue coating on the base material preparing diffusion region, and make micro-prism structure;Described glue
Preferably UV glue;
(4) the lower protective coating of preparation: add tissue adhesion particle in adhesive, add solvent, mix homogeneously, prepares lower guarantor
Sheath coating fluid, the thin film lower surface in step (3) gained is coated with lower protective layer coating fluid, and puts into oven ageing 0.5-3
Hour, obtain described multifunctional membrane.
Further, in above-mentioned steps (1) and step (3), add appropriate solvent dilution, the quantity of solvent of addition so that
It is principle in coating process.
With existing for the diaphragm of backlight module compared with, the present invention provide multifunctional membrane diffusion region in diffusion particle
Serve atomizing light source, hide the effect of lamp shadow;Prism district Main Function is to improve front face brightness.Described multifunctional membrane
Diffusion region is arranged on low beam source, it is possible to atomizing light source effectively, hides lamp source, in the place away from lamp source, front light
Relatively fewer, prism district is set, it is possible to increase front face brightness.The multifunctional membrane that the present invention provides can play uniform light,
Hide shadow, improve the effect of brightness.The backlight module utilizing the multifunctional membrane that the present invention provides have more preferable brightness and
Uniform light.In actual applications, multifunctional membrane provided by the present invention can substitute for prism film and lower diffusion barrier uses.
Accompanying drawing explanation
Fig. 1 is the side light type backlight module group structure schematic diagram that lamp source is positioned at side;
Fig. 2 is to be applied to the multifunctional membrane structural representation that lamp source is positioned in the backlight module of light guide plate side;
Fig. 3 is the side light type backlight module group structure schematic diagram that lamp source is positioned at both sides;
Fig. 4 is to be applied to lamp source to be positioned at the structural representation of the multifunctional membrane in the backlight module of light guide plate both sides;
The structural representation of the multifunctional membrane being applied to sidelight type backlight module that Fig. 5 provides for the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described in detail:
As shown in Figure 1, Figure 3, sidelight type backlight module is divided into two kinds, and a kind of is only one of which lamp source, and lamp source is positioned at leads
Tabula rasa side, another kind of for have two lamp sources, lamp source to lay respectively at light guide plate both sides.
In FIG, lamp source 101 is positioned at the side of light guide plate 103, and 102 is reflector plate, and 105 is upper diffusion barrier, and 104 are
The multifunctional membrane that the present invention provides, in the backlight module shown in Fig. 1, the low beam source of multifunctional membrane has an expansion
Dissipating district, the 1/10-4/10 of a length of diaphragm length of diffusion region, remainder is prism district.
In figure 3, lamp source 301 has two, lays respectively at the both sides of light guide plate 303, and 302 is reflector plate, and 305 is upper expansion
Scattered film, 304 is the multifunctional membranes that the present invention provides, in the backlight module of Fig. 3, two low beam sources of multifunctional membrane
End is respectively provided with diffusion region, and the 1/10-3/10 of a length of diaphragm total length of each diffusion region, remainder is prism district.
Fig. 2 is to be applied to the multifunctional membrane structural representation that lamp source is positioned in the backlight module of light guide plate side, wherein 201
Being the diffusion region of upper coating layer, 202 is the prism district of upper coating layer, and 203 is transparent base, and 204 is lower protective coating.
Fig. 4 is to be applied to the multifunctional membrane structural representation that lamp source is positioned in the backlight module of light guide plate both sides, wherein 401
For the diffusion region of upper coating layer, being positioned at diaphragm both sides, 402 is the prism district of upper coating layer, is positioned in the middle of diaphragm, and 403 are
Bright base material, 404 is lower protective coating.
As it is shown in figure 5, the present invention provides a kind of multifunctional membrane being applied to sidelight type backlight module, described multifunctional membrane
Be coated with upper coating layer 52 including the upper surface of base material 51, described base material 51, lower surface is coated with lower protective coating 53;Institute
State coating layer to be made up of diffusion region 521 and prism district 522.Described diffusion region 521 is diffusion coating, described diffusion coating
Including adhesive 5211, organic diffusion particle 501 and inorganic diffusion particle 502;Described organic diffusion particle 501 and inorganic
Diffusion particle 502 is bonded in the surface of described base material 51 by adhesive 5211.
The method provided according to the present invention prepares multifunctional membrane.Test gained multifunctional membrane is optical in the following manner
Energy.
Brightness and spend test the most together: take the multifunctional membrane to be measured of an A4 paper size, put into the backlight module that structure determines
In, light under the voltage of 24V, with briliancy instrument, (product type is BH-7, and Suzhou Fu Shida scientific instrument company limited is raw
Produce) test its brightness and spend the most together.Spend the most together, also referred to as the luminous intensity distribution uniformity.
Hiding rare is tested: takes the diffusion barrier sheet to be measured of an A4 paper size, is placed on the backlight module lighted, observes it
Hiding rare situation.
Embodiment 1
The method provided according to the present invention prepares multifunctional membrane, selects transparent polycarbonate thin film as base material, institute
Stating base material thickness is 80 μm, is coated with diffusion region in base material low beam source, comprises the glue of 100 parts by weight in described diffusion region
Glutinous agent, organic diffusion particle of 60 parts by weight and the inorganic diffusion particle of 1 parts by weight, described organic diffusion particle is poly-
Styrene resin, particle diameter is 10 μm, and described inorganic diffusion particle is titanium dioxide, and particle diameter is 1 μm, described
Diffusion region coating layer thickness is 5 μm, the 2/10 of diffusion region a length of multi-function membrane overall length.It is coated with prism in base material far lamp source
District, rib a height of 10-15 μm in described prism district, corner angle are 90 °.
Described multi-function membrane is applied to lamp source and is positioned at the backlight module of side.
Embodiment 2
Said method is used to prepare multifunctional membrane.Selecting transparent polycarbonate thin film as base material, described base material is thick
Degree is 100 μm, base material low beam source be coated with diffusion region, described diffusion region comprises the adhesive of 100 parts by weight, 65
Organic diffusion particle of parts by weight and the inorganic diffusion particle of 5 parts by weight, described organic diffusion particle is PMMA tree
Fat, particle diameter is 8-15 μm, and described inorganic diffusion particle is titanium dioxide, and particle diameter is 1-3 μm, described diffusion region
Coating layer thickness is 8 μm, the 1/10 of diffusion region a length of multi-function membrane overall length.It is coated with prism district, institute in base material far lamp source
Stating a height of 25 μm of rib in prism district, corner angle are 90 °.
Described multi-function membrane is applied to lamp source and is positioned at the backlight module of side.
Embodiment 3
Said method is used to prepare multifunctional membrane.Selecting PET transparent membrane as base material, described base material thickness is 200 μm,
It is coated with diffusion region in base material low beam source, described diffusion region comprises the adhesive of 100 parts by weight, the having of 85 parts by weight
Machine diffusion particle and the inorganic diffusion particle of 2 parts by weight, described organic diffusion particle is PMMA resin, particle diameter
For 25-30 μm, described inorganic diffusion particle is titanium dioxide, and particle diameter is 5 μm, and described diffusion region coating layer thickness is
15 μm, the 1/10 of diffusion region a length of multi-function membrane overall length.It is coated with prism district, in described prism district in base material far lamp source
A height of 15 μm of rib, corner angle are 90 °.
Described multi-function membrane is applied to lamp source and is positioned at the backlight module of side.
Embodiment 4
Said method is used to prepare multifunctional membrane.Selecting PC transparent membrane as base material, described base material thickness is 300 μm,
It is coated with diffusion region in base material low beam source, described diffusion region comprises the adhesive of 100 parts by weight, the having of 60 parts by weight
Machine diffusion particle and the inorganic diffusion particle of 1 parts by weight, described organic diffusion particle is polystyrene resin, particle diameter
Being 10 μm, described inorganic diffusion particle is titanium dioxide, and particle diameter is 1 μm, and described diffusion region coating layer thickness is 5 μm,
Diffusion region lays respectively at the two ends of multifunctional membrane, the 2/10 of a length of multi-function membrane overall length of each diffusion region.At base material
Far lamp source coating prism district, rib a height of 10-15 μm in described prism district, corner angle are 90 °.
Described multi-function membrane is applied to lamp source and is positioned at the backlight module of both sides.
Embodiment 5
Said method is used to prepare multifunctional membrane.Selecting PC transparent membrane as base material, described base material thickness is 50 μm,
It is coated with diffusion region in base material low beam source, described diffusion region comprises the adhesive of 100 parts by weight, the having of 65 parts by weight
Machine diffusion particle and the inorganic diffusion particle of 5 parts by weight, described organic diffusion particle is PMMA resin, particle diameter
For 8-15 μm, described inorganic diffusion particle is titanium dioxide, and particle diameter is 1-3 μm, and described diffusion region coating layer thickness is
8 μm, diffusion region lays respectively at the two ends of multifunctional membrane, the 1/10 of a length of multi-function membrane overall length of each diffusion region.
Being coated with prism district in base material far lamp source, a height of 25 μm of rib in described prism district, corner angle are 90 °.
Described multi-function membrane is applied to lamp source and is positioned at the backlight module of both sides.
Embodiment 6
Said method is used to prepare multifunctional membrane.In multifunctional membrane, described base material thickness is 10 μm, described upper painting
The diffusion region of layer of cloth accounts for the 4/10 of described diaphragm length, and remainder is prism district;Described diffusion region near the side in lamp source,
Described prism district is in the side away from lamp source.
Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 30 parts by weight and 1 parts by weight
Inorganic diffusion particle.The particle diameter of described organic diffusion particle is 1 μm-5 μm.The particle diameter of described inorganic diffusion particle is
0.01-1μm.Described diffusion region coating layer thickness is 4 μm.
Described prism district includes micro-prism structure.The height of described micro-prism structure is 5-10 μm, and corner angle are 90 °.
Described lower protective coating includes the adhesive of 100 weight portions and the tissue adhesion diffusion particle of 0.1 weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 7
Said method is used to prepare multifunctional membrane.In multifunctional membrane, described base material thickness is 300 μm, described upper painting
The diffusion region of layer of cloth accounts for the 1/10 of described diaphragm length, and remainder is prism district;Described diffusion region near the side in lamp source,
Described prism district is in the side away from lamp source.
Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 150 parts by weight and 10 weight portions
The inorganic diffusion particle of number.The particle diameter of described organic diffusion particle is 100 μm.The particle diameter of described inorganic diffusion particle is 10 μm.
Described diffusion region coating layer thickness is 50 μm.
Described prism district includes micro-prism structure.The height of described micro-prism structure is 40-50 μm, and corner angle are 90 °.
Described lower protective coating includes the adhesive of 100 weight portions and the tissue adhesion diffusion particle of 1 weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 8
Said method is used to prepare multifunctional membrane.In multifunctional membrane, described base material thickness is 150 μm, described upper painting
The diffusion region of layer of cloth accounts for the 2/10 of described diaphragm length, and remainder is prism district;Described diffusion region near the side in lamp source,
Described prism district is in the side away from lamp source.
Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 90 parts by weight and 6 parts by weight
Inorganic diffusion particle.The particle diameter of described organic diffusion particle is 50 μm-60 μm.The particle diameter of described inorganic diffusion particle is
4-6μm.Described diffusion region coating layer thickness is 6 μm.
Described prism district includes micro-prism structure.The height of described micro-prism structure is 20-30 μm, and corner angle are 90 °.
Described lower protective coating includes the adhesive of 100 weight portions and the tissue adhesion diffusion particle of 0.5 weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 9
Said method is used to prepare multifunctional membrane.In multifunctional membrane, described base material thickness is 10 μm, described many merits
Can be respectively arranged with a diffusion region in the both sides near lamp source by diaphragm, each diffusion region accounts for the 3/10 of the length of described diaphragm, and centre is
Prism district.
Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 30 parts by weight and 1 parts by weight
Inorganic diffusion particle.The particle diameter of described organic diffusion particle is 1 μm-10 μm.The particle diameter of described inorganic diffusion particle is
0.01-1μm.Described diffusion region coating layer thickness is 1-5 μm.
Described prism district includes micro-prism structure.The height of described micro-prism structure is 5-10 μm, and corner angle are 90 °.
Described lower protective coating includes the adhesive of 100 weight portions and the tissue adhesion diffusion particle of 0.1 weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate both sides.
Embodiment 10
Said method is used to prepare multifunctional membrane.In multifunctional membrane, described base material thickness is 300 μm, described many merits
Can be respectively arranged with a diffusion region in the both sides near lamp source by diaphragm, each diffusion region accounts for the 1/10 of the length of described diaphragm, and centre is
Prism district.
Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 150 parts by weight and 10 weight portions
The inorganic diffusion particle of number.The particle diameter of described organic diffusion particle is 80 μm-100 μm.The particle diameter of described inorganic diffusion particle
For 8-10 μm.Described diffusion region coating layer thickness is 10-20 μm.
Described prism district includes micro-prism structure.The height of described micro-prism structure is 40-50 μm, and corner angle are 90 °.
Described lower protective coating includes the adhesive of 100 weight portions and the tissue adhesion diffusion particle of 1 weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate both sides.
Embodiment 11
Said method is used to prepare multifunctional membrane.In multifunctional membrane, described base material thickness is 150 μm, described many merits
Can be respectively arranged with a diffusion region in the both sides near lamp source by diaphragm, each diffusion region accounts for the 2/10 of the length of described diaphragm, and centre is
Prism district.
Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 90 parts by weight and 5 parts by weight
Inorganic diffusion particle.The particle diameter of described organic diffusion particle is 50 μm-60 μm.The particle diameter of described inorganic diffusion particle is
5-6μm.Described diffusion region coating layer thickness is 10-20 μm.
Described prism district includes micro-prism structure.The height of described micro-prism structure is 20-30 μm, and corner angle are 90 °.
Described lower protective coating includes the adhesive of 100 weight portions and the tissue adhesion diffusion particle of 0.5 weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate both sides.
Embodiment 12
In described multifunctional membrane, described base material thickness is 50 μm.The diffusion region (i.e. diffusion coating) of described upper coating layer
Accounting for the 2/10 of described diaphragm length, remainder is prism district;Described diffusion region is in the side near lamp source, described prism district
In the side away from lamp source;Described diffusion coating includes organic diffusion grain of the adhesive of 100 parts by weight, 60 parts by weight
Son and the inorganic diffusion particle of 1 parts by weight.Described organic diffusion particle particle diameter is 5-10 μm.Described inorganic diffusion particle
Particle diameter is 0.05-1 μm.Described diffusion region coating layer thickness is 4-5 μm.Described prism district includes micro-prism structure.Described micro-rib
The height of mirror structure is 30-35 μm, and corner angle are 90 °.Described lower protective coating includes the adhesive and 0.5 of 100 weight portions
The tissue adhesion diffusion particle of weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 13
In described multifunctional membrane, described base material thickness is 65 μm.It is long that the diffusion region of described upper coating layer accounts for described diaphragm
The 3/10 of degree, remainder is prism district;Described diffusion region is in the side near lamp source, and described prism district is away from lamp source
Side.Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 65 parts by weight and 3 weight portions
The inorganic diffusion particle of number.Described organic diffusion particle particle diameter is 20-25 μm.Described inorganic diffusion particle particle diameter is
0.05-1μm.Described diffusion region coating layer thickness is 15 μm.Described prism district includes micro-prism structure.Described micro-prism structure
Height be 35-40 μm, corner angle are 90 °.Described lower protective coating includes adhesive and 0.6 weight portion of 100 weight portions
Tissue adhesion diffusion particle.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 14
In described multifunctional membrane, described base material thickness is 60 μm.It is long that the diffusion region of described upper coating layer accounts for described diaphragm
The 2/10 of degree, remainder is prism district;Described diffusion region is in the side near lamp source, and described prism district is away from lamp source
Side.Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 63 parts by weight and 2 weight portions
The inorganic diffusion particle of number.Described organic diffusion particle particle diameter is 15-20 μm.Described inorganic diffusion particle particle diameter is
0.05-1μm.Described diffusion region coating layer thickness is 10 μm.Described prism district includes micro-prism structure.Described micro-prism structure
Height be 30-40 μm, corner angle are 90 °.Described lower protective coating includes adhesive and 0.5 weight portion of 100 weight portions
Tissue adhesion diffusion particle.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 15
Prepare multifunctional membrane according to the method described above.In described multifunctional membrane, described base material thickness is 50 μm.Described
The both sides of multifunctional membrane are respectively arranged with a diffusion region, and each diffusion region accounts for the 2/10 of the length of described diaphragm, and centre is prism district.
Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 60 parts by weight and the nothing of 1 parts by weight
Machine diffusion particle.Described organic diffusion particle particle diameter is 5-10 μm.Described inorganic diffusion particle particle diameter is 0.05-1 μm.Institute
Stating diffusion region coating layer thickness is 4-5 μm.Described prism district includes micro-prism structure.The height of described micro-prism structure is
30-40 μm, corner angle are 90 °.Described lower protective coating includes adhesive and the tissue adhesion of 0.5 weight portion of 100 weight portions
Diffusion particle.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate both sides.
Embodiment 16
Prepare multifunctional membrane according to the method described above.In described multifunctional membrane, described base material thickness is 65 μm.Described
The both sides of multifunctional membrane are respectively arranged with a diffusion region, and each diffusion region accounts for the 3/10 of the length of described diaphragm, and centre is prism district.
Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 65 parts by weight and the nothing of 3 parts by weight
Machine diffusion particle.Described organic diffusion particle particle diameter is 25 μm.Described inorganic diffusion particle particle diameter is 0.05-1 μm.Described
Diffusion region coating layer thickness is 3 μm.Described prism district includes micro-prism structure.The height of described micro-prism structure is 30-40 μm,
Corner angle are 90 °.Described lower protective coating includes the adhesive of 100 weight portions and the tissue adhesion diffusion particle of 0.5 weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate both sides.
Embodiment 17
Prepare multifunctional membrane according to the method described above.In described multifunctional membrane, described base material thickness is 60 μm.Described
The both sides of multifunctional membrane are respectively arranged with a diffusion region, and each diffusion region accounts for the 2/10 of the length of described diaphragm, and centre is prism district.
Described diffusion coating includes the adhesive of 100 parts by weight, organic diffusion particle of 63 parts by weight and the nothing of 2 parts by weight
Machine diffusion particle.Described organic diffusion particle particle diameter is 10-20 μm.Described inorganic diffusion particle particle diameter is 0.05-1 μm.Institute
Stating diffusion region coating layer thickness is 5-8 μm.Described prism district includes micro-prism structure.The height of described micro-prism structure is
30-40 μm, corner angle are 90 °.Described lower protective coating includes adhesive and the tissue adhesion of 0.5 weight portion of 100 weight portions
Diffusion particle.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate both sides.
Embodiment 18
Said method is used to prepare multifunctional membrane.In described multifunctional membrane, described base material thickness is 65 μm.Described
The diffusion region of upper coating layer accounts for the 3/10 of described diaphragm length, and remainder is prism district;Described diffusion region is near lamp source
Side, described prism district is in the side away from lamp source.Described diffusion coating includes the adhesive of 100 parts by weight, 65 weight
Organic diffusion particle of number and the inorganic diffusion particle of 3 parts by weight.Described organic diffusion particle particle diameter is 20-25 μm.
Described inorganic diffusion particle particle diameter is 0.05-1 μm.Described diffusion region coating layer thickness is 15 μm.Described prism district includes micro-rib
Mirror structure.The height of described micro-prism structure is 35-40 μm, and corner angle are 90 °.Described lower protective coating includes 100 weight
The adhesive of part and the tissue adhesion diffusion particle of 0.6 weight portion.
Merlon selected by the base material of described multifunctional membrane, and organic diffusion particle selects polystyrene, inorganic diffusion particle
Selecting barium sulfate, adhesive selects acrylic resin.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 19
Said method is used to prepare multifunctional membrane.In described multifunctional membrane, described base material thickness is 65 μm.Described
The diffusion region of upper coating layer accounts for the 3/10 of described diaphragm length, and remainder is prism district;Described diffusion region is near lamp source
Side, described prism district is in the side away from lamp source.Described diffusion coating includes the adhesive of 100 parts by weight, 65 weight
Organic diffusion particle of number and the inorganic diffusion particle of 3 parts by weight.Described organic diffusion particle particle diameter is 20-25 μm.
Described inorganic diffusion particle particle diameter is 0.05-1 μm.Described diffusion region coating layer thickness is 15 μm.Described prism district includes micro-rib
Mirror structure.The height of described micro-prism structure is 35-40 μm, and corner angle are 90 °.Described lower protective coating includes 100 weight
The adhesive of part and the tissue adhesion diffusion particle of 0.6 weight portion.
PET selected by the base material of described multifunctional membrane, and organic diffusion particle selects polystyrene, and inorganic diffusion particle is selected
Barium sulfate, adhesive selects heat-curable epoxy resin.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 20
Said method is used to prepare multifunctional membrane.In described multifunctional membrane, described base material thickness is 65 μm.Described
The diffusion region of upper coating layer accounts for the 3/10 of described diaphragm length, and remainder is prism district;Described diffusion region is near lamp source
Side, described prism district is in the side away from lamp source.Described diffusion coating includes the adhesive of 100 parts by weight, 65 weight
Organic diffusion particle of number and the inorganic diffusion particle of 3 parts by weight.Described organic diffusion particle particle diameter is 20-25 μm.
Described inorganic diffusion particle particle diameter is 0.05-1 μm.Described diffusion region coating layer thickness is 15 μm.Described prism district includes micro-rib
Mirror structure.The height of described micro-prism structure is 35-40 μm, and corner angle are 90 °.Described lower protective coating includes 100 weight
The adhesive of part and the tissue adhesion diffusion particle of 0.6 weight portion.
PET selected by the base material of described multifunctional membrane, and organic diffusion particle selects polystyrene, and inorganic diffusion particle is selected
Titanium dioxide, adhesive selects polyurethane resin.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 21
Said method is used to prepare multifunctional membrane.In multifunctional membrane, described base material thickness is 50 μm, described upper painting
The diffusion region of layer of cloth accounts for the 4/10 of described diaphragm length, and remainder is prism district;Described diffusion region near the side in lamp source,
Described prism district is in the side away from lamp source.
Described diffusion coating includes the adhesive of 100 parts by weight, and organic diffusion particle of 30 parts by weight.Described organic
The particle diameter of diffusion particle is 1 μm-5 μm.Described diffusion region coating layer thickness is 4 μm.
Described prism district includes micro-prism structure.The height of described micro-prism structure is 5-10 μm, and corner angle are 90 °.
Described lower protective coating includes the adhesive of 100 weight portions and the tissue adhesion diffusion particle of 0.1 weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 22
Said method is used to prepare multifunctional membrane.In multifunctional membrane, described base material thickness is 300 μm, described upper painting
The diffusion region of layer of cloth accounts for the 1/10 of described diaphragm length, and remainder is prism district;Described diffusion region near the side in lamp source,
Described prism district is in the side away from lamp source.
Described diffusion coating includes the adhesive of 100 parts by weight and organic diffusion particle of 150 parts by weight.Described organic
The particle diameter of diffusion particle is 100 μm.Described diffusion region coating layer thickness is 50 μm.
Described prism district includes micro-prism structure.The height of described micro-prism structure is 40-50 μm, and corner angle are 90 °.
Described lower protective coating includes the adhesive of 100 weight portions and the tissue adhesion diffusion particle of 1 weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Embodiment 23
Said method is used to prepare multifunctional membrane.In multifunctional membrane, described base material thickness is 150 μm, described upper painting
The diffusion region of layer of cloth accounts for the 2/10 of described diaphragm length, and remainder is prism district;Described diffusion region near the side in lamp source,
Described prism district is in the side away from lamp source.
Described diffusion coating includes the adhesive of 100 parts by weight and organic diffusion particle of 90 parts by weight.Described organic expansion
The particle diameter of shot is 50 μm-60 μm.Described diffusion region coating layer thickness is 6 μm.
Described prism district includes micro-prism structure.The height of described micro-prism structure is 20-30 μm, and corner angle are 90 °.
Described lower protective coating includes the adhesive of 100 weight portions and the tissue adhesion diffusion particle of 0.5 weight portion.
Above-mentioned multifunctional membrane is applied to lamp source and is positioned at the backlight module of light guide plate side.
Comparative example 1:
Ordinary diffuser, including base material, the upper surface of base material is coated with diffusion coating, and diffusion coating includes 100 parts by weight
Adhesive, organic diffusion particle of 60 parts by weight and the inorganic diffusion particle of 1 parts by weight, described organic diffusion particle
For polystyrene resin, particle diameter is 10 μm, and described inorganic diffusion particle is titanium dioxide, and particle diameter is 1 μm,
Described diffusion coating thickness is 5 μm.
Comparative example 2:
Common prism film, rib a height of 10-15 μm, corner angle are 90 °.
Being positioned at the backlight module of both sides owing to lamp source is positioned at the backlight module of side and lamp source, lamp source number is different, and original brightness is also
Different.Table 1 below is the backlight module test number that lamp source is positioned at side, and table 2 is positioned at the backlight module of both sides for lamp source
Test number.
The multifunctional membrane of table 1 embodiment of the present invention offer and the optical performance test of comparative example gained diaphragm
The multifunctional membrane of table 2 embodiment of the present invention offer and the optical performance test of comparative example gained diaphragm
Can be drawn by the optic test data in table 1, table 2, the multifunctional membrane that the present invention provides has and common prism
The brightness that sheet is close, hiding rare is preferable simultaneously, without obvious lamp shadow.Particularly, embodiments of the invention 13,18-20 provides
Multifunctional membrane there is more preferable brightness, hiding rare and spend the most together.The present invention provide multifunctional membrane have prismatic lens and
The combination function of lower diffusion barrier, can substitute for prismatic lens and lower diffusion barrier is applied in sidelight type backlight module.
The above, only presently preferred embodiments of the present invention, it is not intended to limit protection scope of the present invention.Every
The impartial change done according to present invention and modification, be encompassed by the scope of the claims of the present invention.
Claims (3)
1. the multifunctional membrane being applied to sidelight type backlight module, it is characterised in that described multifunctional membrane include base material,
The upper surface of described base material is coated with coating layer, lower surface is coated with lower protective coating;Described upper coating layer is by diffusion region and rib
Jing Qu forms;
Described diffusion region is diffusion coating, and described diffusion coating includes that adhesive and diffusion particle, described diffusion particle pass through gluing
Agent is bonded in the surface of described base material;Described diffusion particle is organic diffusion particle and the mixture of inorganic diffusion particle;Described rib
Jing Qu includes micro-prism structure;
In described multifunctional membrane, described base material thickness is 50-65 μm;Lamp source is positioned to the backlight module of light guide plate side,
The diffusion region of described upper coating layer accounts for the 3/10 of described diaphragm length, and remainder is prism district;Described diffusion region is near lamp source
Side, described prism district is in the side away from lamp source;Lamp source is positioned to the backlight module of light guide plate both sides, described multi-functional
The both sides of diaphragm are respectively arranged with a diffusion region, and each diffusion region accounts for the 2/10-3/10 of the length of described diaphragm, and centre is prism district;Institute
State diffusion region at described multifunctional membrane near the both sides in lamp source;Described diffusion coating include 100 parts by weight adhesive,
Organic diffusion particle of 60-65 parts by weight and the inorganic diffusion particle of 1-3 parts by weight, described organic diffusion particle particle diameter is
5-25μm;Described inorganic diffusion particle particle diameter is 0.05-1 μm;Described prism district includes micro-prism structure;Described microprism is tied
The height of structure is 30-40 μm, and corner angle are 90 °;Described lower protective coating includes adhesive and the 0.5-0.6 weight of 100 weight portions
The tissue adhesion diffusion particle of amount part.
Multifunctional membrane the most according to claim 1, it is characterised in that described base material thickness is 65 μm, described upper painting
The diffusion region of layer of cloth accounts for the 3/10 of described diaphragm length, and remainder is prism district;Described diffusion region near the side in lamp source,
Described prism district is in the side away from lamp source;Described diffusion coating includes the adhesive of 100 parts by weight, the having of 65 parts by weight
Machine diffusion particle and the inorganic diffusion particle of 3 parts by weight;Described organic diffusion particle particle diameter is 20-25 μm, described inorganic expansion
Scattered particle diameter is 0.05-1 μm;Described diffusion region coating layer thickness is 15 μm;Described prism district includes micro-prism structure;Described
The height of micro-prism structure is 35-40 μm, and corner angle are 90 °;Described lower protective coating include 100 weight portions adhesive and
The tissue adhesion diffusion particle of 0.6 weight portion;
Merlon selected by the base material of described multifunctional membrane, and organic diffusion particle selects polystyrene, and inorganic diffusion particle selects
With barium sulfate, adhesive selects acrylic resin.
The manufacture method of multifunctional membrane the most according to claim 1 and 2, it is characterised in that under described method includes
State step:
(1) coating fluid of diffusion coating is configured: in adhesive, add diffusion particle, after adding solvent, be sufficiently mixed,
To diffusion layer coating fluid;
(2) prepare diffusion region: the diffusion layer coating fluid that application step (1) prepares on the diffusion region of transparent base, and drying
In case aging 0.5-3 hour;
(3) prepare prism district: glue coating on the base material preparing diffusion region, and make micro-prism structure;
(4) the lower protective coating of preparation: add tissue adhesion particle in adhesive, add solvent, mix homogeneously, prepares lower guarantor
Sheath coating fluid, the thin film lower surface in step (3) gained is coated with lower protective layer coating fluid, and it is little to put into oven ageing 0.5-3
Time, obtain described multifunctional membrane.
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CN201310314668.9A CN103439830B (en) | 2013-07-23 | A kind of multifunctional membrane being applied to sidelight type backlight module |
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CN201310314668.9A CN103439830B (en) | 2013-07-23 | A kind of multifunctional membrane being applied to sidelight type backlight module |
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CN101236265A (en) * | 2006-12-12 | 2008-08-06 | 三星电子株式会社 | Optical sheet and method for fabricating the same |
CN101446656A (en) * | 2007-11-26 | 2009-06-03 | Lg电子株式会社 | Optical film and liquid crystal display including the optical film |
CN101639201A (en) * | 2008-07-29 | 2010-02-03 | 李大焕 | Optical sheet and preparation method thereof |
CN102364239A (en) * | 2011-10-04 | 2012-02-29 | 友达光电股份有限公司 | Optical film and backlight module using same |
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CN1811561A (en) * | 2005-01-25 | 2006-08-02 | 三星电子株式会社 | Backlight assembly, method of manufacturing the same and liquid crystal display apparatus having the same |
CN101236265A (en) * | 2006-12-12 | 2008-08-06 | 三星电子株式会社 | Optical sheet and method for fabricating the same |
CN101446656A (en) * | 2007-11-26 | 2009-06-03 | Lg电子株式会社 | Optical film and liquid crystal display including the optical film |
CN101639201A (en) * | 2008-07-29 | 2010-02-03 | 李大焕 | Optical sheet and preparation method thereof |
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