CN106526718B - A kind of water-based system anti scuffing diffusion barrier and backlight for liquid crystal display module - Google Patents
A kind of water-based system anti scuffing diffusion barrier and backlight for liquid crystal display module Download PDFInfo
- Publication number
- CN106526718B CN106526718B CN201611209410.2A CN201611209410A CN106526718B CN 106526718 B CN106526718 B CN 106526718B CN 201611209410 A CN201611209410 A CN 201611209410A CN 106526718 B CN106526718 B CN 106526718B
- Authority
- CN
- China
- Prior art keywords
- water
- diffusion
- particle
- anti scuffing
- backing layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of water-based system anti scuffing diffusion barrier, including over the transparent substrate the main diffusion layer on surface and the anti scuffing backing layer in transparent base lower surface is arranged in transparent base, setting, and the coating fluid component and weight percent of the anti scuffing backing layer are：Water-soluble resin lotion 80%~93%, light diffusion particle 1%~10%, function additive 1%~10%, contain water soluble acrylic resin in the water-soluble resin lotion, the percentage that water soluble acrylic resin's weight accounts for the water-soluble resin lotion weight is 40%~70%, the smooth diffusion particle is by big particle, granule sub-portfolio is constituted, the big particle is polybutyl methacrylate, one or both of polyisobutyl methacrylate, ranging from 10 μm~15 μm of the big particle diameter, big particle weight accounts for the 5%~20% of light diffusion particle total weight percent.The present invention solves the problems, such as that existing optical diffusion is easy prism film to scratch when being applied to backlight module.
Description
Technical field
The present invention relates to a kind of diffusion barrier and backlight for liquid crystal display modules.
Background technology
In recent years, various liquid crystal flat-panel display technologies and product rapidly develop, and flat-panel monitor liquid crystal display is to answer at present
With most extensively, the most flat panel display technology of product, product is extensively using each field, such as LCD, LED class LCD technology
Applied to TV, mobile phone, laptop, desktop computer monitor, work station, industry monitoring device, global positioning satellite system
System (GPS), personal data processing, game machine, videophone, portable V CD, DVD and some other portable unit.Liquid crystal display
Device includes mainly liquid crystal display panel, backlight module etc..Backlight module is one of the key part and component of liquid crystal display device, and function exists
In well-off brightness and the light source being evenly distributed, it is made normally to show image.Backlight module includes mainly light source, reflection
Piece, light guide plate, lower diffusion barrier, prismatic lens and upper diffusion barrier.Diffusion barrier is used in backlight module (BLU), function is by linear light
Source or point light source are scattered in area source, to provide flat-panel monitor one uniform area source.
While usage amount of the diffusion barrier in display screen gradually increases, for diffusion barrier solvent type glue yield also with
Increase, the effect of the solvent type glue is to increase the diffusing reflection of light, reduces the influence to the intensity of light, that thus brings is negative
Effect is that the organic solvent generated in process of production is also gradually increasing, and not yet obtains effective processing and control.Tool
For body, since the coating of diffusion barrier is carried out in a dustless workshop, place is relatively closed, and solvent is not easy to arrange
Go out, leans on air feed system to exclude completely the solvent volatilization that glue generates, but existing method also is difficult to solvent being all discharged, this
Prodigious influence is brought on the health of shop worker；Even if all being caused great harm to surrounding enviroment if discharge.This
Outside, a large amount of organic solvent is generated in a relatively closed space, prodigious pressure is also brought to the strick precaution of fire.In order to
The discharge of organic solvent is reduced, part company puts into a huge sum of money and builds recovery system, and construction cost and operating cost are very high,
The burden of enterprise is exacerbated significantly.
In summary, how to reduce the discharge of organic solvent, reduce the safety guarantor that influence, the raising to environment operate employee
Shield becomes the art and is badly in need of a great problem solved.Existing optical diffusion is all to select solvent type resin simultaneously
Hard diffusion particle is added as film forming matter, what is formed after film forming is hard coat, processes in use after being easy bending and generates folding
Trace and scrap.Meanwhile existing optical diffusion is easy prism film to scratch when being applied to backlight module, and cause product
Quality declines, therefore existing optical diffusion also needs to be further improved.
Invention content
The purpose of the present invention is for during preparing diffusion barrier, reduce because volatile solvent uses cause fire,
The possibility fired, and harm of the pernicious gas to personnel's body is reduced, while overcoming existing for existing solvent type resin system
The defect of scratch resistance difference, and a kind of anti scuffing diffusion barrier of aqueous, environmental protective is provided.
Technical program of the present invention lies in：
A kind of water-based system anti scuffing diffusion barrier, including transparent base, the main diffusion layer that surface over the transparent substrate is set
With the anti scuffing backing layer in transparent base lower surface is set, the coating fluid component and weight percent of the anti scuffing backing layer are：
Water-soluble resin lotion 80%~93%
Light diffusion particle 1%~10%
Function additive 1%~10%,
Contain water soluble acrylic resin in the water-soluble resin lotion, water soluble acrylic resin's weight accounts for institute
The percentage for stating water-soluble resin lotion weight is 40%~70%, and the smooth diffusion particle is by big particle, granule sub-portfolio structure
At the big particle is one kind or two in polybutyl methacrylate (PBMA), polyisobutyl methacrylate (PIBMA)
Kind, ranging from 10 μm~15 μm of the big particle diameter, big particle weight account for light diffusion particle total weight percent 5%~
20%；
Small particles in the anti scuffing backing layer are closely arranged in one or two layers in anti scuffing backing layer coating, big particle
It is alternatively arranged in small particles.
The small particles be polymethyl methacrylate (PMMA), polystyrene (PS), one kind in organic silicon particle or
Several, the particle size range of the small particles is 0.5 μm~10 μm, and the small particles weight accounts for light diffusion particle total weight percent
80%~95%, the anti scuffing backing layer thickness is the 1/2~3/4 of maximum particle diameter.
Be added antistatic agent in the coating fluid of anti scuffing backing layer, antistatic agent dosage be total coating fluid quality 0.1%~
1%.
The function additive includes crosslinking agent and antistatic agent.
Crosslinking agent is hydrophilic aliphatic isocyanates or polyfunctionality aziridine resin in anti scuffing backing layer.
Antistatic agent is quaternary ammonium salt antistatic agent or alkyl acryl amine salt antistatic agent.
Water-based system scratch resistance diffusion barrier of the present invention, substrate layer is transparent material, by polyethylene terephthalate
(PET), one kind in polymethyl methacrylate, makrolon, polyamide, polyimides is made, preferably terephthalic acid (TPA) second
Diol ester (PET) film.
A kind of backlight for liquid crystal display module includes expanding for luminous light source, reflector plate, light guide plate and frame, optics
Film and prismatic lens are dissipated, the optical diffusion is above-mentioned water-based system anti scuffing diffusion barrier.
The present invention endangers larger solvent using almost nil water substitution is endangered.
The beneficial effects of the present invention are：
(1) anti scuffing backing layer coating fluid of the invention uses resin aqueous emulsion, using water as decentralized medium, to environment without dirt
Dye has apparent environmentally protective meaning；It is nonflammable non-explosive, no security against fire hidden danger.(2) facilitate construction, substantially reduce pair
Human body harmfulness, without safeguard procedures such as mask, breathing masks, without exhaust blower equal solvent processing unit.(3) light spreads grain
Big particle is solved existing optical diffusion and is easy rib when being applied to backlight module using elastic anti scuffing particle in son
The problem of mirror film scratches.
Specific implementation mode
Transparent base in the present invention is simultaneously not particularly limited its thickness, has good surface smoothness, mechanical strength, resistance to
Warm nature and fast light, weatherability material can be used as the base material of optical diffusion, general to choose 20 μm~300 μ m thicks,
Its too thin resistance to thermal dimensional stability declines obviously, too thick, can influence the transmitance of light.To improve transparent substrate surface and applying
The adherence of cloth liquid, transparent substrate surface can also can be used and precoated in transparent substrate surface by corona or plasma treatment
Bottom, to improve the adhesive performance of diffusion coating layer and transparent base.
In the present invention, light diffusion particle used in anti scuffing backing layer coating by different-grain diameter size big particle and granule
Sub-portfolio is constituted, and the big particle is one in polybutyl methacrylate (PBMA), polyisobutyl methacrylate (PIBMA)
Kind or two kinds, particle diameter be 10 μm~15 μm, big particle weight accounts for the 5%~20% of light diffusion particle total weight percent；
Small particles are one or more of polymethyl methacrylate (PMMA), polystyrene (PS), organic silicon particle, the granule
For the particle diameter distribution of son at 0.5 μm~10 μm, small particles weight accounts for the 80%~95% of light diffusion particle total weight percent.
Average particle grain size used in big particle is 10 μm~15 μm, and anti scuffing backing layer coating layer thickness is maximum particle
The 1/2~3/4 of diameter.The big average particle size is too low, and light stroke is too short, and light is penetrated without diffusion, diffusion effect
It reduces；The big average particle size is excessively high or particle insertion is very few, is easy to cause, generation very little with binding resin bonded area
The defects of falling off.Big particle is selected in polybutyl methacrylate (PBMA), polyisobutyl methacrylate (PIBMA) simultaneously
The combination of one or two kinds of particles, big particle are soft particle, and a soft contact surface is provided for optical diffusion, from
And it can effectively prevent scratching prism film.Simultaneously because the condenser performance of big grain size organic filler can guarantee the light-gathering of coating again
Energy.
Generally 0.5 μm~10 μm of the selection of average grain diameter used in the light diffusion particle of small-medium size, it is of the present invention small
Particle is one or more of polymethyl methacrylate (PMMA), polystyrene (PS), organic silicon particle.The small particles
It is dispersed in the uniformity and covering that light is improved in water-soluble resin film forming matter through film when so that the aqueous body
Being anti scuffing diffusion barrier has excellent comprehensive performance.
In order to reach the higher requirement for being satisfied with mist degree, the small particles in anti scuffing backing layer coating of the invention are with one layer
Or two layers be closely arranged in anti scuffing backing layer coating, big particle is alternatively arranged in small particles, to meet optical diffusion institute
The good harmony of high transmittance and haze needed.
The small particles dosage of the present invention is the 80%~95% of the total diffusion particle quality of anti scuffing backing layer.In this formula rate
Under, apparent optical diffusion is not in dim spot, and effectively prevent the Particles Blocking liquid supply pipe reunited during coating fluid supply
The filtration core of road, reduction feed flow is unsmooth, often replaces filter core or feed flow is uneven, influence the defect of coating speed and quality.
In the present invention anti scuffing backing layer coating include weight percent be 80%~93% water-soluble resin lotion, 1%~
Coating solution made of 10% diffusion particle, 1%~10% function additive anchors at another except transparent base film main diffusion layer
One surface forms.Main group of water-soluble resin lotion becomes water soluble acrylic resin；The water soluble acrylic resin
Solid content is 40%~70% in water-soluble resin lotion.Function additive includes crosslinking agent and antistatic agent.Crosslinking agent is parent
Aqueous aliphatic isocyanates or polyfunctionality aziridine crosslinker.Antistatic agent is quaternary ammonium salt antistatic agent or alkyl
Amide salt antistatic agent.
The coating method of the water-based system anti scuffing diffusion barrier of the present invention uses conventional accurate coating method, such as intaglio plate
Coating, dimple coating, item stitch the modes such as coating, dropping curtain coating to form coating.Various coating methods have its advantage and disadvantage, foundation
Specific coating requires, such as coating fluid viscosity, rolling speed, the suitable coating method of coating layer thickness selection, and preferably dimple is coated with.
With reference to specific embodiment, the present invention is further illustrated.
Embodiment 1
The preparation of main diffusion layer coating fluid：
Anti scuffing backing layer coating fluid is prepared：
The compositing formula of main diffusion layer prepares masking liquid raw material in accordance with the above-mentioned embodiment 1：By the water-soluble resin breast in formula
Liquid, diffusion particle are added to dispersion 30min to 40min in dispersion machine, and resin cross-linking agent, dispersant 10min then is added extremely
Main diffusion layer coating fluid is made in 15min；Finely dispersed main diffusion layer coating fluid is applied to polyethylene terephthalate tree
Then the upper surface of transparent substrate layer made of membrane of lipoprotein carries out drying and processing, finally carry out burin-in process, and aging 12 hours is extremely
24 hours main diffusion layers for forming diffusion barrier；The thickness of main diffusion layer is the 1/2~3/4 of the grain size of maximum PBMA particles；
Prepare masking liquid raw material according to the compositing formula of 1 backing layer of embodiment：Water-soluble resin lotion, diffusion particle are added to point
It dissipates and disperses 30min to 40min in machine, resin cross-linking agent, dispersant 10min to 15min is then added, backing layer coating fluid is made；
Finely dispersed backing layer coating fluid is applied to the following table of transparent substrate layer made of pet resin film
Then face carries out drying and processing, finally carry out burin-in process, and aging forms backing layer in 12 hours to 24 hours；The thickness of backing layer is
The 1/2~3/4 of the grain size of maximum PBMA particles；Complete the preparation of water-based system anti scuffing optical diffusion.Manufactured aqueous body
It is that anti scuffing diffusion barrier forms a kind of backlight for liquid crystal display with luminous light source, reflector plate, light guide plate and frame and prismatic lens
Module.
Embodiment 2
The preparation of main diffusion layer coating fluid：
Anti scuffing backing layer coating fluid is prepared：
Prepare masking liquid raw material according to the compositing formula of 2 main diffusion layer of above-described embodiment：By the water-soluble resin breast in formula
Liquid, diffusion particle are added to dispersion 30min to 40min in dispersion machine, and resin cross-linking agent, dispersant 10min then is added extremely
Main diffusion layer coating fluid is made in 15min；Finely dispersed main diffusion layer coating fluid is applied to polymethyl methacrylate film system
At transparent substrate layer upper surface, then carry out drying and processing, finally carry out burin-in process, 12 hours to 24 hours shapes of aging
At the main diffusion layer of diffusion barrier；The thickness of main diffusion layer is the 1/2~3/4 of the grain size of maximum PBMA particles.
Prepare masking liquid raw material according to the compositing formula of 2 backing layer of embodiment：Water-soluble resin lotion, diffusion particle are added to point
It dissipates and disperses 30min to 40min in machine, resin cross-linking agent, dispersant 10min to 15min is then added, backing layer coating fluid is made；
Finely dispersed backing layer coating fluid is applied to the lower surface of transparent substrate layer made of polymethyl methacrylate film, then into
Row drying and processing, finally carries out burin-in process, and aging forms backing layer in 12 hours to 24 hours；The thickness of backing layer is maximum PBMA
The 1/2~3/4 of the grain size of son；Complete the preparation of water-based system anti scuffing optical diffusion.Manufactured water-based system anti scuffing expands
It dissipates film and forms a kind of backlight for liquid crystal display module with luminous light source, reflector plate, light guide plate and frame and prismatic lens.
Embodiment 3
The preparation of main diffusion layer coating fluid：
Anti scuffing backing layer coating fluid is prepared：
Prepare masking liquid raw material according to the compositing formula of 3 main diffusion layer of above-described embodiment：By the water-soluble resin breast in formula
Liquid, diffusion particle are added to dispersion 30min to 40min in dispersion machine, and resin cross-linking agent, dispersant 10min then is added extremely
Main diffusion layer coating fluid is made in 15min；Finely dispersed main diffusion layer coating fluid is applied to transparent made of polycarbonate film
Then the upper surface of substrate layer carries out drying and processing, finally carry out burin-in process, and aging forms diffusion barrier in 12 hours to 24 hours
Main diffusion layer；The thickness of main diffusion layer is the 1/2~3/4 of the grain size of maximum PBMA particles.
Prepare masking liquid raw material according to the compositing formula of 3 backing layer of embodiment：Water-soluble resin lotion, diffusion particle are added to point
It dissipates and disperses 30min to 40min in machine, resin cross-linking agent, dispersant 10min to 15min is then added, backing layer coating fluid is made；
Finely dispersed backing layer coating fluid is applied to the lower surface of transparent substrate layer made of polycarbonate film, is then carried out at drying
Reason, finally carries out burin-in process, and aging forms backing layer in 12 hours to 24 hours；The thickness of backing layer is the grain size of maximum PBMA particles
1/2~3/4；Complete the preparation of water-based system anti scuffing optical diffusion.Manufactured water-based system anti scuffing diffusion barrier and hair
Light source, reflector plate, light guide plate and the frame and prismatic lens of light form a kind of backlight for liquid crystal display module.
Embodiment 4
The preparation of main diffusion layer coating fluid：
Anti scuffing backing layer coating fluid is prepared：
Prepare masking liquid raw material according to the compositing formula of 4 main diffusion layer of above-described embodiment：By the water-soluble resin breast in formula
Liquid, diffusion particle are added to dispersion 30min to 40min in dispersion machine, and resin cross-linking agent, dispersant 10min then is added extremely
Main diffusion layer coating fluid is made in 15min；Finely dispersed main diffusion layer coating fluid is applied to transparent base made of polyamide film
Then the upper surface of material layer carries out drying and processing, finally carry out burin-in process, and aging forms diffusion barrier in 12 hours to 24 hours
Main diffusion layer；The thickness of main diffusion layer is the 1/2~3/4 of the grain size of maximum PBMA particles.
Prepare masking liquid raw material according to the compositing formula of 4 backing layer of embodiment：Water-soluble resin lotion, diffusion particle are added to point
It dissipates and disperses 30min to 40min in machine, resin cross-linking agent, dispersant 10min to 15min is then added, backing layer coating fluid is made；
Finely dispersed backing layer coating fluid is applied to the lower surface of transparent substrate layer made of polyamide film, is then carried out at drying
Reason, finally carries out burin-in process, and aging forms backing layer in 12 hours to 24 hours；The thickness of backing layer is the grain size of maximum PBMA particles
1/2~3/4；Complete the preparation of water-based system anti scuffing optical diffusion.Manufactured water-based system anti scuffing diffusion barrier and hair
Light source, reflector plate, light guide plate and the frame and prismatic lens of light form a kind of backlight for liquid crystal display module.
Embodiment 5
The preparation of main diffusion layer coating fluid：
Anti scuffing backing layer coating fluid is prepared：
Prepare masking liquid raw material according to the compositing formula of 5 main diffusion layer of above-described embodiment：By the water-soluble resin breast in formula
Liquid, diffusion particle are added to dispersion 30min to 40min in dispersion machine, and resin cross-linking agent, dispersant 10min then is added extremely
Main diffusion layer coating fluid is made in 15min；Finely dispersed main diffusion layer coating fluid is applied to polyethylene terephthalate tree
Then the upper surface of transparent substrate layer made of membrane of lipoprotein carries out drying and processing, finally carry out burin-in process, and aging 12 hours is extremely
24 hours main diffusion layers for forming diffusion barrier；The thickness of main diffusion layer is the 1/2~3/4 of the grain size of maximum PBMA particles.
Prepare masking liquid raw material according to the compositing formula of 5 backing layer of embodiment：Water-soluble resin lotion, diffusion particle are added to point
It dissipates and disperses 30min to 40min in machine, resin cross-linking agent, dispersant 10min to 15min is then added, backing layer coating fluid is made；
Finely dispersed backing layer coating fluid is applied to the following table of transparent substrate layer made of pet resin film
Then face carries out drying and processing, finally carry out burin-in process, and aging forms backing layer in 12 hours to 24 hours；The thickness of backing layer is
The 1/2~3/4 of the grain size of maximum PBMA particles；Complete the preparation of water-based system anti scuffing optical diffusion.Manufactured aqueous body
It is that anti scuffing diffusion barrier forms a kind of backlight for liquid crystal display with luminous light source, reflector plate, light guide plate and frame and prismatic lens
Module.
Embodiment 6
The preparation of main diffusion layer coating fluid：
Anti scuffing backing layer coating fluid is prepared：
Prepare masking liquid raw material according to the compositing formula of 6 main diffusion layer of above-described embodiment：By the water-soluble resin breast in formula
Liquid, diffusion particle are added to dispersion 30min to 40min in dispersion machine, and resin cross-linking agent, dispersant 10min then is added extremely
Main diffusion layer coating fluid is made in 15min；Finely dispersed main diffusion layer coating fluid is applied to polyethylene terephthalate tree
Then the upper surface of transparent substrate layer made of membrane of lipoprotein carries out drying and processing, finally carry out burin-in process, and aging 12 hours is extremely
24 hours main diffusion layers for forming diffusion barrier；The thickness of main diffusion layer is the 1/2~3/4 of the grain size of maximum PBMA particles.
Prepare masking liquid raw material according to the compositing formula of 6 backing layer of embodiment：Water-soluble resin lotion, diffusion particle are added to point
It dissipates and disperses 30min to 40min in machine, resin cross-linking agent, dispersant 10min to 15min is then added, backing layer coating fluid is made；
Finely dispersed backing layer coating fluid is applied to the following table of transparent substrate layer made of pet resin film
Then face carries out drying and processing, finally carry out burin-in process, and aging forms backing layer in 12 hours to 24 hours；The thickness of backing layer is
The 1/2~3/4 of the grain size of maximum PBMA particles；Complete the preparation of water-based system anti scuffing optical diffusion.Manufactured aqueous body
It is that anti scuffing diffusion barrier forms a kind of backlight for liquid crystal display with luminous light source, reflector plate, light guide plate and frame and prismatic lens
Module.
Embodiment 7
The preparation of main diffusion layer coating fluid：
Anti scuffing backing layer coating fluid is prepared：
Prepare masking liquid raw material according to the compositing formula of 7 main diffusion layer of above-described embodiment：By the water-soluble resin breast in formula
Liquid, diffusion particle are added to dispersion 30min to 40min in dispersion machine, and resin cross-linking agent, dispersant 10min then is added extremely
Main diffusion layer coating fluid is made in 15min；Finely dispersed main diffusion layer coating fluid is applied to polyethylene terephthalate tree
Then the upper surface of transparent substrate layer made of membrane of lipoprotein carries out drying and processing, finally carry out burin-in process, and aging 12 hours is extremely
24 hours main diffusion layers for forming diffusion barrier；The thickness of main diffusion layer is the 1/2~3/4 of the grain size of maximum PBMA particles.
Prepare masking liquid raw material according to the compositing formula of 7 backing layer of embodiment：Water-soluble resin lotion, diffusion particle are added to point
It dissipates and disperses 30min to 40min in machine, resin cross-linking agent, dispersant 10min to 15min is then added, backing layer coating fluid is made；
Finely dispersed backing layer coating fluid is applied to the following table of transparent substrate layer made of pet resin film
Then face carries out drying and processing, finally carry out burin-in process, and aging forms backing layer in 12 hours to 24 hours；The thickness of backing layer is
The 1/2~3/4 of the grain size of maximum PBMA particles；Complete the preparation of water-based system anti scuffing optical diffusion.Manufactured aqueous body
It is that anti scuffing diffusion barrier forms a kind of backlight for liquid crystal display with luminous light source, reflector plate, light guide plate and frame and prismatic lens
Module.
Embodiment 8
The preparation of main diffusion layer coating fluid：
Anti scuffing backing layer coating fluid is prepared：
Prepare masking liquid raw material according to the compositing formula of 8 main diffusion layer of above-described embodiment：By the water-soluble resin breast in formula
Liquid, diffusion particle are added to dispersion 30min to 40min in dispersion machine, and resin cross-linking agent, dispersant 10min then is added extremely
Main diffusion layer coating fluid is made in 15min；Finely dispersed main diffusion layer coating fluid is applied to transparent made of Kapton
Then the upper surface of substrate layer carries out drying and processing, finally carry out burin-in process, and aging forms diffusion barrier in 12 hours to 24 hours
Main diffusion layer；The thickness of main diffusion layer is the 1/2~3/4 of the grain size of maximum PBMA particles.
Prepare masking liquid raw material according to the compositing formula of 8 backing layer of embodiment：Water-soluble resin lotion, diffusion particle are added to point
It dissipates and disperses 30min to 40min in machine, resin cross-linking agent, dispersant 10min to 15min is then added, backing layer coating fluid is made；
Finely dispersed backing layer coating fluid is applied to the lower surface of transparent substrate layer made of Kapton, is then carried out at drying
Reason, finally carries out burin-in process, and aging forms backing layer in 12 hours to 24 hours；The thickness of backing layer is the grain size of maximum PBMA particles
1/2~3/4；Complete the preparation of water-based system anti scuffing optical diffusion.Manufactured water-based system anti scuffing diffusion barrier and hair
Light source, reflector plate, light guide plate and the frame and prismatic lens of light form a kind of backlight for liquid crystal display module.
Comparative example 1
The preparation of main diffusion layer coating fluid：
Anti scuffing backing layer coating fluid is prepared：
Prepare masking liquid raw material according to the compositing formula of 1 main diffusion layer of above-mentioned comparative example：By the water-soluble resin breast in formula
Liquid, diffusion particle are added to dispersion 30min to 40min in dispersion machine, and resin cross-linking agent, dispersant 10min then is added extremely
Main diffusion layer coating fluid is made in 15min；Finely dispersed main diffusion layer coating fluid is applied to polyethylene terephthalate tree
Then the upper surface of transparent substrate layer made of membrane of lipoprotein carries out drying and processing, finally carry out burin-in process, and aging 12 hours is extremely
24 hours main diffusion layers for forming diffusion barrier.
Prepare masking liquid raw material according to the compositing formula of 1 backing layer of comparative example：Water-soluble resin lotion, diffusion particle are added to point
It dissipates and disperses 30min to 40min in machine, resin cross-linking agent, dispersant 10min to 15min is then added, backing layer coating fluid is made；
Finely dispersed backing layer coating fluid is applied to the following table of transparent substrate layer made of pet resin film
Then face carries out drying and processing, finally carry out burin-in process, and aging forms backing layer in 12 hours to 24 hours；Complete diffusion barrier
It prepares.Manufactured diffusion barrier forms a kind of liquid crystal display back of the body with luminous light source, reflector plate, light guide plate and frame and prismatic lens
Optical mode group.
Comparative example 2
The preparation of main diffusion layer coating fluid：
Backing layer coating fluid is prepared：
Prepare masking liquid raw material according to the compositing formula of 2 main diffusion layer of above-mentioned comparative example：By the solvent type resin breast in formula
Liquid, diffusion particle are added to dispersion 30min to 40min in dispersion machine, and resin cross-linking agent, dispersant 10min then is added extremely
Main diffusion layer coating fluid is made in 15min；Finely dispersed main diffusion layer coating fluid is applied to polyethylene terephthalate tree
Then the upper surface of transparent substrate layer made of membrane of lipoprotein carries out drying and processing, finally carry out burin-in process, and aging 12 hours is extremely
24 hours main diffusion layers for forming diffusion barrier.
Prepare masking liquid raw material according to the compositing formula of 2 backing layer of comparative example：Solvent type resin lotion, diffusion particle are added to point
It dissipates and disperses 30min to 40min in machine, resin cross-linking agent, dispersant 10min to 15min is then added, backing layer coating fluid is made；
Finely dispersed backing layer coating fluid is applied to the following table of transparent substrate layer made of pet resin film
Then face carries out drying and processing, finally carry out burin-in process, and aging forms backing layer in 12 hours to 24 hours；Complete diffusion barrier
It prepares.Manufactured diffusion barrier forms a kind of liquid crystal display back of the body with luminous light source, reflector plate, light guide plate and frame and prismatic lens
Optical mode group.
Test result see the table below：
Test method is as follows
1, mist degree, light transmittance：With NDH~5000 (Japan's electricity color) light transmittance mist degree instrument, measures optics in embodiment and spread
The full light light transmittance and mist degree of film, light is from adherent layer to diffusion layer when test.
2, coating adhesion is tested：It is cut into 100 section lines, the size of each section line with cutter in diffusion barrier layer face
For 1mmX1mm, the type professional test adhesive tapes of 3M~610 are adhered to the power of 2Kg and are drawn on lattice coating, with 180 ° of angles by 3M after 3min
Adhesive tape is quickly removed from coating surface, and coating adhesion is carried out according to the number for staying in the section lattice on base material in coat side is counted
Assessment, is denoted as " N/% ".
3, wear-resisting property is tested：Diffusion barrier layer face carries out reciprocating friction with #000 steel wool, bears a heavy burden for 100g/cm2,
Frictional distance is 5cm, and observation is assessed by the scuffing situation of rubbed coat side, to there is not the highest friction carefully scratched
Number is assessed.
Claims (6)
1. a kind of water-based system anti scuffing diffusion barrier, including transparent base, setting over the transparent substrate the main diffusion layer on surface and
Anti scuffing backing layer in transparent base lower surface is set, which is characterized in that the coating fluid component and weight of the anti scuffing backing layer
Percentage is：
Water-soluble resin lotion 80%~93%
Light diffusion particle 1%~10%
Function additive 1%~10%,
Contain water soluble acrylic resin in the water-soluble resin lotion, water soluble acrylic resin's weight accounts for the water
The percentage of soluble resin lotion weight is 40%~70%, and the smooth diffusion particle is made of big particle, granule sub-portfolio, institute
It is one or both of polybutyl methacrylate, polyisobutyl methacrylate, the big particle diameter model to state big particle
It is 10 μm~15 μm to enclose, and big particle weight accounts for the 5%~20% of light diffusion particle total weight percent；The big particle is soft
Particle；
The small particles are one or more of polymethyl methacrylate, polystyrene, organic silicon particle, the small particles
Particle size range be 0.5 μm~10 μm, the small particles weight accounts for the 80%~95% of light diffusion particle total weight percent, institute
State 1/2~3/4 that anti scuffing backing layer thickness is maximum particle diameter；
Small particles in the anti scuffing backing layer are closely arranged in one or two layers in anti scuffing backing layer coating, big particle interval
It is arranged in small particles.
2. water-based system anti scuffing diffusion barrier according to claim 1, which is characterized in that the function additive includes crosslinking
Agent and antistatic agent.
3. water-based system anti scuffing diffusion barrier according to claim 2, which is characterized in that the crosslinking agent is hydrophily fat
Fat race isocyanates or polyfunctionality aziridine resin.
4. water-based system anti scuffing diffusion barrier according to claim 3, which is characterized in that the antistatic agent is quaternary ammonium salt
Class antistatic agent or alkyl acryl amine salt antistatic agent.
5. water-based system anti scuffing diffusion barrier according to claim 4, which is characterized in that the transparent base is by poly- to benzene
One kind in naphthalate, polymethyl methacrylate, makrolon, polyamide, polyimides is made.
6. a kind of backlight for liquid crystal display module includes for luminous light source, reflector plate, light guide plate and frame, optics diffusion
Film and prismatic lens, which is characterized in that the optical diffusion is that water-based system according to any one of claims 1 to 5 is anti-scratch
Hinder diffusion barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209410.2A CN106526718B (en) | 2016-12-23 | 2016-12-23 | A kind of water-based system anti scuffing diffusion barrier and backlight for liquid crystal display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209410.2A CN106526718B (en) | 2016-12-23 | 2016-12-23 | A kind of water-based system anti scuffing diffusion barrier and backlight for liquid crystal display module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106526718A CN106526718A (en) | 2017-03-22 |
| CN106526718B true CN106526718B (en) | 2018-08-28 |
Family
ID=58337676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611209410.2A Active CN106526718B (en) | 2016-12-23 | 2016-12-23 | A kind of water-based system anti scuffing diffusion barrier and backlight for liquid crystal display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106526718B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319060A (en) * | 2017-12-26 | 2018-07-24 | 江西省平波电子有限公司 | A kind of highlighted liquid crystal display die set |
| CN113406739B (en) * | 2021-07-15 | 2023-04-25 | 江西古川胶带有限公司 | Optical diffusion film and preparation method and application thereof |
| CN116120615A (en) * | 2022-12-29 | 2023-05-16 | 乐凯华光印刷科技有限公司 | Diffusion film for refrigerator LED area light source |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524907A (en) * | 2008-03-05 | 2009-09-09 | 富士胶片株式会社 | Lamination sheet for optical uses and image display device |
| CN101603664A (en) * | 2009-06-23 | 2009-12-16 | 中国乐凯胶片集团公司 | A kind of optical diffusion |
| CN104503010A (en) * | 2014-12-23 | 2015-04-08 | 浙江大学宁波理工学院 | Scratch-resistant optical diffusion film and preparation method for same |
| JP2016216629A (en) * | 2015-05-21 | 2016-12-22 | ナガセケムテックス株式会社 | Aqueous coating composition and laminate |
-
2016
- 2016-12-23 CN CN201611209410.2A patent/CN106526718B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524907A (en) * | 2008-03-05 | 2009-09-09 | 富士胶片株式会社 | Lamination sheet for optical uses and image display device |
| CN101603664A (en) * | 2009-06-23 | 2009-12-16 | 中国乐凯胶片集团公司 | A kind of optical diffusion |
| CN104503010A (en) * | 2014-12-23 | 2015-04-08 | 浙江大学宁波理工学院 | Scratch-resistant optical diffusion film and preparation method for same |
| JP2016216629A (en) * | 2015-05-21 | 2016-12-22 | ナガセケムテックス株式会社 | Aqueous coating composition and laminate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106526718A (en) | 2017-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106707378B (en) | A kind of anti scuffing diffusion barrier and backlight module | |
| CN106526718B (en) | A kind of water-based system anti scuffing diffusion barrier and backlight for liquid crystal display module | |
| US7824747B2 (en) | Diffuser for flat panel display | |
| KR101984350B1 (en) | Method of producing optical film, optical film and image display device | |
| US20130242397A1 (en) | Optical film, polarizing plate, liquid crystal panel, and image display apparatus | |
| CN102759761B (en) | Optical thin film with high covering power and high luminance and display device comprising optical thin film | |
| CN103823257B (en) | A kind of anti-blue light optical diffusion | |
| CN103345011B (en) | A kind of diffusion barrier being applied to side-light backlight module | |
| US20060209416A1 (en) | Light-diffusing film having pores | |
| CN102439490A (en) | Antiglare hardcoat film | |
| JP2007206674A (en) | Optical thin sheet | |
| CN103777255A (en) | Anti-dazzle film and manufacturing method therefor | |
| CN101109829A (en) | Light diffusion sheet for a display device | |
| CN103245982A (en) | Optical layered body, polarizer and image display device | |
| CN103207421A (en) | Diffusion film and production method | |
| CN103823258B (en) | Blue light-blocking diffusion film | |
| CN106118442A (en) | A kind of blooming cold coating and application thereof | |
| KR101752245B1 (en) | Light Diffusing Sheet for Back Light Unit | |
| CN102997183B (en) | Friction-resistant type light diffusion film and backlighting device | |
| CN111117504A (en) | Anti-dazzle and anti-reflection film and preparation method thereof | |
| CN108732665A (en) | A kind of scratch resistant diffusion barrier, backlight module and liquid crystal display | |
| KR100446044B1 (en) | protecting film for prism | |
| KR20200097533A (en) | Voc free-coating liquid composition for image formation used in rear projection type beam project screen | |
| CN205750206U (en) | A kind of compound blast basement membrane and composite brightening film | |
| TWI827243B (en) | Display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |