CN107831560A - A kind of Pasting type optical diffusion and preparation method thereof - Google Patents
A kind of Pasting type optical diffusion and preparation method thereof Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0268—Diffusing elements; Afocal elements characterized by the fabrication or manufacturing method
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Abstract
The present invention relates to field of optical films, more particularly relates to a kind of Pasting type optical diffusion and preparation method thereof.In order to solve the deficiency of the easy warpage of existing optical diffusion, the present invention provides a kind of Pasting type optical diffusion and preparation method thereof.The optical diffusion includes transparent base, protective coating and viscous diffusion coating；The protective coating is located at the upper surface of transparent base, and the viscous diffusion coating is located at the lower surface of transparent base.The viscous diffusion coating has viscosity.Pasting type optical diffusion provided by the invention not only has excellent atomizing effect and covering, simultaneously because diffusion coating has certain viscosity, Pasting is in substrate surface, it is not only restricted to apply size, warping phenomenon is significantly reduced, solves existing optical thin film because slimming causes the deficiency using size-constrained system.Preparation method technique provided by the invention is simple, easily operated.
Description
Technical field
The present invention relates to field of optical films, more particularly relates to a kind of Pasting type optical diffusion and its preparation side
Method.
Background technology
In recent years, with mobile phone, notebook computer, tablet personal computer, TV and a series of liquid crystal displays such as vehicle-mounted
Become increasingly popular, the popular requirement to such consumer goods also more and more higher.And a high-quality aobvious device needs to accomplish image fidelity,
It is in bright gay color, picture can be clearly displayed.On the other hand, the backlight module of opticator is then particularly important in device.
The diffusion film part indispensable as backlight module, affect the final visual effect of display device.
During the long-term use of liquid crystal display, because of the presence of light source, partial heat can be discharged to a certain extent so that diffusion barrier
Environment temperature rise.In continuous heating again temperature-fall period, buckling deformation phenomenon easily occurs for diaphragm, has a strong impact on final picture
Display effect.And with the trend that consumer shows to lightening requirement and large scale, the thickness of corresponding diffusion barrier is increasingly
It is thin, cut that size is increasing, and this also make it that buckling deformation problem is loftier.All the time, generally use adds low receipts
Shrinkage auxiliary agent reduces the shrinkage factor of film or coating, but can all significantly affect the physics or optical property of material.Therefore, develop
One kind can meet the requirement of different application size, and the optical thin film for not influenceing material property is the developing direction of this area.
The content of the invention
In order to solve the deficiency of the easy warpage of existing optical diffusion, the present invention provide a kind of Pasting type optical diffusion and
Its preparation method.Pasting type optical diffusion provided by the invention not only has excellent atomizing effect and covering, simultaneously
Because diffusion coating has certain viscosity, Pasting is not only restricted to apply size in substrate surface, hence it is evident that reduces warping phenomenon, solution
Existing optical thin film determined because slimming causes the deficiency using size-constrained system.Preparation method technique letter provided by the invention
It is single, it is easily operated.
In order to solve the above-mentioned technical problem, the present invention uses following technical proposals：
The present invention provides a kind of Pasting type optical diffusion, and the optical diffusion includes transparent base, protective coating
With viscous diffusion coating；The protective coating is located at the upper surface of transparent base, and the viscous diffusion coating is located at transparent base
Lower surface.
Further, in described Pasting type optical diffusion, the protective coating includes protection glue-line and anti-suction
Attached particle, the anti-granule for absorbing is by protecting glue-line to be attached to transparent base upper surface；The viscous diffusion coating includes viscous
Property diffusion glue-line and diffusion particle, the diffusion particle transparent base lower surface is attached to by viscous diffusion glue-line.
Further, in described Pasting type optical diffusion, the viscous diffusion coating has viscosity.
The viscous diffusion coating of the diffusion barrier and the peeling force on the surface of other substrates are 500-900g/25mm.
Further, the viscous diffusion coating of the diffusion barrier and the peeling force on the surface of other substrates are 618-662g/
25mm。
Influenceing the principal element of viscosity mainly includes coating layer thickness and accessible area.In general, bondline thickness is thicker,
Viscosity is stronger；Accessible area is bigger, and viscosity is stronger.
Further, in described Pasting type optical diffusion, the material of the protection glue-line is selected from polyurethane tree
Fat adhesive, acrylic resin adhesive, epoxy resin adhesive, polyvinyl acetate adhesive are sticked in agent or pollopas gluing agent
One kind.
Further, in described Pasting type optical diffusion, the anti-granule for absorbing is selected from polymethylacrylic acid
It is methyl esters particle, polybutyl methacrylate particle, polystyrene particle, polyamide particle, polyorganosiloxane resin particle, poly-
One kind in urethane particle, TiO 2 particles, silicon dioxide granule, calcium carbonate particle or barium sulfate particles or at least two
Combination.
Further, in described Pasting type optical diffusion, the quality of the protection glue-line and anti-granule for absorbing
The ratio between number is 100:0.1-100:5.
Further, the ratio between mass fraction of the protection glue-line and anti-granule for absorbing is 100:0.1-2.
Further, the anti-granule for absorbing is selected from polybutyl methacrylate particle, polyamide particle or poly- ammonia
One kind or at least two combination in ester resin particle.
Further, the particle diameter of the anti-granule for absorbing is 3-20 μm.
Further, the particle diameter of the anti-granule for absorbing is 3-5 μm.
Further, the material of the transparent base is selected from polyethylene terephthalate (PET), makrolon
(PC), one kind in polymethyl methacrylate (PMMA), polyethylene (PE), polystyrene (PS), polyamide (PA).Institute
The refractive index for stating transparent base is 1.4-1.75.
Further, the thickness of the transparent base is 10-300 μm.Further, the thickness of the transparent base is
15-25 μm, 35-50 μm, 60-80 μm, 90-160 μm or 180-250 μm.Further, the thickness of the transparent base is 10-
188μm.Further, the thickness of the transparent base is 100-150 μm.
Further, in described Pasting type optical diffusion, the material of the viscous diffusion glue-line is selected from propylene
One kind in acid resin adhesive, organic silicon resin adhesive, polyurethane adhesive or polyester adhesive.
Further, the material of the viscous diffusion glue-line is selected from pressure sensitive acrylic's resin adhesive, organic siliconresin
One kind in adhesive, polyurethane adhesive or polyester adhesive.
Further, in described Pasting type optical diffusion, the diffusion particle is selected from inorganic particle.
Further, the inorganic particle is selected from TiO 2 particles, silicon dioxide granule, alundum (Al2O3) particle, carbon
One kind or at least two combination in sour calcium particle or barium sulfate particles.
Further, in described Pasting type optical diffusion, the matter of the viscous diffusion glue-line and diffusion particle
It is 100 to measure the ratio between number:20-150.
Further, the ratio between mass fraction of the viscous diffusion glue-line and diffusion particle is 100:20-120.Foregoing ratio
Example includes the technical scheme that embodiment 1,3,7,10,13 and embodiment 15 provide.
Further, the thickness of the viscous diffusion glue-line is more than 20 μm.Further, the thickness of the viscous diffusion glue-line
Spend for 25-100 μm.Further, the thickness of the viscous diffusion glue-line is 25-50 μm.
Further, the particle diameter of the diffusion particle is less than 15 μm.
Further, in described Pasting type optical diffusion, in viscous diffusion coating, the diffusion particle
Particle diameter is 0.1-10 μm.
Further, the particle diameter of the diffusion particle is 0.1-0.8 μm.
Further, auxiliary agent is contained in the viscous diffusion coating.The auxiliary agent is selected from light stabilizer, antistatic additive, stream
One kind or at least two combination in flat agent, dispersant or wetting agent.The addition of the auxiliary agent is viscous diffusion glue-line weight
The 0.01%-5% of amount.
The present invention also provides a kind of preparation method of described Pasting type optical diffusion, and methods described includes following steps
Suddenly：
(1) protective coating coating fluid is prepared；
(2) protective coating is prepared：Step (1) is prepared into coating solution over the transparent substrate, is placed in 80 DEG C -100
DEG C oven ageing 2-8 hours；
(3) viscous diffusion coating coating fluid is prepared；
(4) viscous diffusion coating is prepared：Step (3) is configured into another side of the coating solution in transparent base, juxtaposition
In 40 DEG C of -60 DEG C of oven ageing 48-72 hours.
Further, the preparation method comprises the following steps：
(1) protective coating coating fluid is prepared：Adhesive is sequentially added in order, anti-granule for absorbing stirs, and added
Suitable solvent, regulation coating fluid viscosity, is suitable for coating process；
(2) protective coating is prepared：Step (1) is prepared into coating solution over the transparent substrate, is placed in 80 DEG C -100
DEG C oven ageing 2-8 hours；
(3) viscous diffusion coating coating fluid is prepared：Sequentially add adhesive in order, diffusion particle stirs, and add
Enter suitable solvent, regulation coating fluid viscosity, be suitable for coating process；
(4) viscous diffusion coating is prepared：Step (3) is configured into another side of the coating solution in transparent base, juxtaposition
In 40 DEG C of -60 DEG C of oven ageing 48-72 hours.
Further, solvent adjustment viscosity can be added in the protective coating coating fluid and viscous diffusion coating coating fluid,
It is suitable for coating process.
Further, auxiliary agent can be also added in the protective coating coating fluid and viscous diffusion coating coating fluid, to improve
The performance of coating.
The present invention also provides the application of described Pasting type optical diffusion, and the Pasting type optical diffusion passes through
Viscous diffusion coating is pasted on the surface of other substrates.
The material of other substrates can be glass, polyethylene terephthalate (PET), makrolon (PC), poly- first
Base methyl acrylate (PMMA), polyethylene (PE), polystyrene (PS) or polyamide (PA).
Compared with prior art, Pasting type optical diffusion provided by the invention not only have excellent atomizing effect and
Covering, while because diffusion coating has certain viscosity, Pasting is not only restricted to apply size in substrate surface, hence it is evident that reduces
Warping phenomenon, its preparation method technique is simple, easily operated.
Brief description of the drawings
Fig. 1 is the structural representation that Pasting type provided by the invention spreads optical mode.
Wherein, 101 be protective coating, and 102 be anti-granule for absorbing, and 103 be transparent base, and 104 be viscous diffusion coating,
105 be diffusion particle.
Embodiment：
Technical scheme provided by the invention is described further with reference to the accompanying drawings and detailed description.
As shown in figure 1, Pasting type optical diffusion provided by the invention includes transparent base 103, the transparent base
103 upper surfaces are provided with protective coating 101, and lower surface is provided with viscous diffusion coating 104, and protective coating 101 includes Protection glue
Layer and anti-granule for absorbing 102, viscous diffusion coating 104 include viscous diffusion glue-line and diffusion particle 105.It is in use, of the invention
The viscous diffusion coating of the optical diffusion of offer is pasted onto adjacent substrate surface.Pasting type optics provided by the invention expands
Scattered film is not easy warpage.
The optical property and peeling force performance of Pasting type diffusion barrier provided by the invention are tested by the following method.
1st, light transmittance or mist degree test：The diffusion barrier to be tested of an A4 size is taken, is put into mist degree tester and measures it
Light transmittance and haze value.Mist degree expression covering, haze value are the higher the better.
2nd, luminance test：The diffusion barrier to be tested of an A4 size is taken, is put into according to test structure in backlight module,
Lighted under 24V voltage, its brightness is tested with briliancy instrument.
3rd, peel test force：The diffusion membrane sample to be tested of 200mm × 25mm size is taken, with puller system by 180 ° of strippings
From test diffusion coating and the peeling force on the surface of other substrates.Peeling force is preferred in 500-900g/25mm.Peeling force characterizes this
The viscosity of the diffusion coating of the Pasting type diffusion barrier provided is provided, that is, is pasted onto the performance of other substrate surfaces.
Embodiment 1
Pasting type diffusion barrier provided by the invention, wherein, transparent base is polyethylene terephthalate, described
The thickness of bright base material is 10 μm；Contain in protective coating：The polyurethane adhesive of 100 mass parts, the particle diameter of 0.1 mass parts is 3 μ
M anti-granule for absorbing, the anti-granule for absorbing are polymethyl methacrylate particle；Contain in viscous diffusion coating：100 mass
The acrylic resin adhesive of part, the particle diameter of 20 mass parts are 0.1 μm of diffusion particle, and the diffusion particle is titanium dioxide grain
Son, the viscous diffusion coating layer thickness are 25 μm.
Embodiment 2
Pasting type diffusion barrier provided by the invention, wherein, transparent base is polyethylene terephthalate, described
The thickness of bright base material is 300 μm；Contain in protective coating：The acrylic resin adhesive of 100 mass parts, the particle diameter of 5 mass parts
For 20 μm of anti-granule for absorbing, the anti-granule for absorbing is polybutyl methacrylate particle；Contain in viscous diffusion coating：
The acrylic resin adhesive of 100 mass parts, the particle diameter of 150 mass parts are 10 μm of diffusion particle, and the diffusion particle is two
Titanium particles, the viscous diffusion coating layer thickness are 100 μm.
Embodiment 3
Pasting type diffusion barrier provided by the invention, wherein, transparent base is makrolon, the thickness of the transparent base
For 100 μm；Contain in protective coating：The polyurethane adhesive of 100 mass parts, the particle diameter of 1 mass parts are 5 μm of anti-absorption grain
Son, the anti-granule for absorbing are polyamide particle；Contain in viscous diffusion coating：The organic siliconresin glue of 100 mass parts
Stick, the particle diameter of 120 mass parts are 0.25 μm of diffusion particle, and the diffusion particle is silicon dioxide granule, and the viscosity expands
It is 25 μm to dissipate coating layer thickness.
Embodiment 4
Pasting type diffusion barrier provided by the invention, wherein, transparent base is makrolon, the thickness of the transparent base
For 50 μm；Contain in protective coating：The polyurethane adhesive of 100 mass parts, the particle diameter of 2 mass parts are 7 μm of anti-granule for absorbing,
The anti-granule for absorbing is polyurethane particles；Contain in viscous diffusion coating：The polyester adhesive of 100 mass parts, 80 mass parts
Particle diameter be 5 μm of diffusion particle, the diffusion particle be barium sulfate particles, and the viscous diffusion coating layer thickness is 40 μm.
Embodiment 5
Pasting type diffusion barrier provided by the invention, wherein, transparent base is polyethylene terephthalate, described
The thickness of bright base material is 125 μm；Contain in protective coating：The acrylic resin adhesive of 100 mass parts, the grain of 0.5 mass parts
Footpath is 10 μm of anti-granule for absorbing, and the anti-granule for absorbing is polyurethane particles；Contain in viscous diffusion coating：100 mass parts
Organic silicon resin adhesive, the particle diameters of 80 mass parts is 0.5 μm of diffusion particle, and the diffusion particle is titanium dioxide grain
Son, the viscous diffusion coating layer thickness are 35 μm.
Embodiment 6
Pasting type diffusion barrier provided by the invention, wherein, transparent base is polymethyl methacrylate, the transparent base
The thickness of material is 75 μm；Contain in protective coating：The polyurethane adhesive of 100 mass parts, the particle diameters of 1 mass parts are 7 μm anti-
Granule for absorbing, the anti-granule for absorbing are polyamide particle；Contain in viscous diffusion coating：The polyester adhesive of 100 mass parts
Stick, the particle diameter of 100 mass parts are 1 μm of diffusion particle, and the diffusion particle is TiO 2 particles, and the viscous diffusion applies
Thickness degree is 50 μm.
Embodiment 7
Pasting type diffusion barrier provided by the invention, wherein, transparent base is makrolon, the thickness of the transparent base
For 150 μm；Contain in protective coating：The epoxyn of 100 mass parts, the particle diameter of 2 mass parts are 5 μm of anti-absorption grain
Son, the anti-granule for absorbing are polymethyl methacrylate particle；Contain in viscous diffusion coating：The acrylic acid of 100 mass parts
Resin adhesive, the particle diameter of 60 mass parts are 0.8 μm of diffusion particle, and the diffusion particle is silicon dioxide granule, described viscous
Property diffusion coating thickness be 50 μm.
Embodiment 8
Pasting type diffusion barrier provided by the invention, wherein thoroughly, bright base material is polyethylene terephthalate, described
The thickness of bright base material is 100 μm；Contain in protective coating：The polyurethane adhesive of 100 mass parts, the particle diameter of 0.5 mass parts are
10 μm of anti-granule for absorbing, the anti-granule for absorbing are polyurethane particles；Contain in viscous diffusion coating：100 mass parts are gathered
Ester gum stick, the particle diameters of 50 mass parts are 0.5 μm of diffusion particle, and the diffusion particle is TiO 2 particles, the viscosity
Diffusion coating thickness is 40 μm.
Embodiment 9
Pasting type diffusion barrier provided by the invention, wherein, transparent base is polymethyl methacrylate, the transparent base
The thickness of material is 75 μm；Contain in protective coating：The polyacrylic resin adhesive of 100 mass parts, the particle diameter of 3 mass parts is 7 μ
M anti-granule for absorbing, the anti-granule for absorbing are polymethyl methacrylate particle；Contain in viscous diffusion coating：100 mass
The acrylic resin adhesive of part, the particle diameter of 90 mass parts are 1 μm of diffusion particle, and the diffusion particle is calcium carbonate particle,
The viscous diffusion coating layer thickness is 50 μm.
Embodiment 10
Pasting type diffusion barrier provided by the invention, wherein, transparent base is polyethylene, and the thickness of the transparent base is
188μm；Contain in protective coating：The polyurethane adhesive of 100 mass parts, the particle diameter of 2 mass parts are 5 μm of anti-granule for absorbing,
The anti-granule for absorbing is polybutyl methacrylate particle；Contain in viscous diffusion coating：The acrylic resin of 100 mass parts
Adhesive, the particle diameter of 100 mass parts are 0.5 μm of diffusion particle, and the diffusion particle is TiO 2 particles, and the viscosity expands
It is 35 μm to dissipate coating layer thickness.
Embodiment 11
Pasting type diffusion barrier provided by the invention, wherein, transparent base is polyamide, the thickness of the transparent base
Spend for 150 μm；Contain in protective coating：The polyacrylic resin adhesive of 100 mass parts, the particle diameters of 1 mass parts are 7 μm anti-
Granule for absorbing, the anti-granule for absorbing are polyurethane particles；Contain in viscous diffusion coating：The acrylic resin of 100 mass parts
Adhesive, the particle diameter of 80 mass parts are 0.5 μm of diffusion particle, and the diffusion particle is TiO 2 particles, and the viscosity expands
It is 50 μm to dissipate coating layer thickness.
Embodiment 12
Pasting type diffusion barrier provided by the invention, wherein, transparent base is makrolon, the thickness of the transparent base
For 50 μm；Contain in protective coating：The polyurethane adhesive of 100 mass parts, the particle diameter of 1 mass parts are 7 μm of anti-granule for absorbing,
The anti-granule for absorbing is polybutyl methacrylate particle；Contain in viscous diffusion coating：The acrylic resin of 100 mass parts
Adhesive, the particle diameter of 90 mass parts are 2 μm of diffusion particle, and the diffusion particle is calcium carbonate particle, and the viscous diffusion applies
Thickness degree is 35 μm.
Embodiment 13
Pasting type diffusion barrier provided by the invention, wherein, transparent base is polyethylene, and the thickness of the transparent base is
188μm；Contain in protective coating：The polyurethane adhesive of 100 mass parts, the particle diameter of 0.8 mass parts are 5 μm of anti-absorption grain
Son, the anti-granule for absorbing are polyorganosiloxane resin particle；Contain in viscous diffusion coating：The organic siliconresin of 100 mass parts
Adhesive, the particle diameter of 80 mass parts are 0.25 μm of diffusion particle, and the diffusion particle is TiO 2 particles, and the viscosity expands
It is 50 μm to dissipate coating layer thickness.
Embodiment 14
Pasting type diffusion barrier provided by the invention, wherein, transparent base is polyethylene, and the thickness of the transparent base is
75μm；Contain in protective coating：The acrylic resin adhesive of 100 mass parts, the particle diameter of 0.5 mass parts are 10 μm of anti-absorption
Particle, the anti-granule for absorbing are polyamide particle；Contain in viscous diffusion coating：The polyester adhesive of 100 mass parts,
The particle diameter of 40 mass parts is 0.3 μm of diffusion particle, and the diffusion particle is TiO 2 particles, and the viscous diffusion applies thickness
Spend for 50 μm.
Embodiment 15
Pasting type diffusion barrier provided by the invention, wherein, transparent base is makrolon, the thickness of the transparent base
For 50 μm；Contain in protective coating：The polyurethane adhesive of 100 mass parts, the particle diameter of 1 mass parts are 5 μm of anti-granule for absorbing,
The anti-granule for absorbing is polyamide particle；Contain in viscous diffusion coating：The acrylic resin of 100 mass parts is gluing
Agent, the particle diameter of 110 mass parts are 0.5 μm of diffusion particle, and the diffusion particle is silicon dioxide granule, and the viscous diffusion applies
Thickness degree is 40 μm.
Table 1：The main performance testing results for the Pasting type optical diffusion that 1-15 of the embodiment of the present invention is provided
| Numbering | Light transmittance % | Mist degree % | Brightness (cd/m2) | Peeling force (g/25mm) |
| Embodiment 1 | 73.51 | 93.48 | 2288 | 618 |
| Embodiment 2 | 74.53 | 94.49 | 2305 | 584 |
| Embodiment 3 | 72.39 | 93.29 | 2279 | 636 |
| Embodiment 4 | 73.71 | 95.61 | 2268 | 622 |
| Embodiment 5 | 69.82 | 96.12 | 2333 | 598 |
| Embodiment 6 | 70.53 | 93.44 | 2292 | 609 |
| Embodiment 7 | 72.20 | 94.50 | 2313 | 648 |
| Embodiment 8 | 73.87 | 94.39 | 2430 | 577 |
| Embodiment 9 | 71.63 | 93.56 | 2420 | 594 |
| Embodiment 10 | 73.21 | 95.79 | 2454 | 662 |
| Embodiment 11 | 70.05 | 93.53 | 2407 | 630 |
| Embodiment 12 | 74.69 | 94.16 | 2271 | 612 |
| Embodiment 13 | 70.50 | 95.45 | 2480 | 655 |
| Embodiment 14 | 72.93 | 93.20 | 2480 | 672 |
| Embodiment 15 | 73.34 | 93.36 | 2416 | 639 |
Testing result can be drawn as shown in Table 1, and Pasting type optical diffusion provided by the invention has higher saturating
Light rate, higher mist degree (covering is preferable), in use, application is not size-limited, can be used in small size and big
The display module of size.Wherein, the Pasting type optical diffusion combination property that embodiment 1,3,7,10,13,15 provides is more preferable,
Light transmittance is more than or equal to 70.50%, and mist degree is more than or equal to 93.29%, and brightness is more than or equal to 2279cd/m2, peeling force
More than or equal to 618g/25mm.Particularly, the Pasting type optical diffusion combination property that embodiment 10 provides is best.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is every
The equivalent changes and modifications done according to present invention, it is encompassed by the scope of the claims of the present invention.
Claims (10)
- A kind of 1. Pasting type optical diffusion, it is characterised in that the optical diffusion include transparent base, protective coating and Viscous diffusion coating；The protective coating is located at the upper surface of transparent base, and the viscous diffusion coating is located at transparent base Lower surface.
- 2. Pasting type optical diffusion according to claim 1, it is characterised in that the protective coating includes Protection glue Layer and anti-granule for absorbing, the anti-granule for absorbing is by protecting glue-line to be attached to transparent base upper surface；The viscous diffusion applies Layer includes viscous diffusion glue-line and diffusion particle, and the diffusion particle is attached to transparent base following table by viscous diffusion glue-line Face.
- 3. Pasting type optical diffusion according to claim 1, it is characterised in that the viscous diffusion coating has viscous Property.
- 4. Pasting type optical diffusion according to claim 2, it is characterised in that the material of the protection glue-line is selected from The agent of polyurethane resin gluing, acrylic resin adhesive, epoxy resin adhesive, polyvinyl acetate adhesive stick agent or pollopas One kind in adhesive.
- 5. Pasting type optical diffusion according to claim 2, it is characterised in that the anti-granule for absorbing is selected from poly- first Base methyl acrylate particle, polybutyl methacrylate particle, polystyrene particle, polyamide particle, polysiloxanes tree Fat granule, polyurethane particles, TiO 2 particles, silicon dioxide granule, calcium carbonate particle or one kind in barium sulfate particles or At least two combination.
- 6. Pasting type optical diffusion according to claim 2, it is characterised in that the protection glue-line and anti-absorption grain The ratio between mass fraction of son is 100:0.1-100:5.
- 7. Pasting type optical diffusion according to claim 2, it is characterised in that the viscous diffusion glue-line and diffusion The ratio between mass fraction of particle is 100:20-150.
- 8. Pasting type optical diffusion according to claim 2, it is characterised in that the viscous diffusion of the diffusion barrier applies Layer and the peeling force on the surface of other substrates are 500-900g/25mm.
- 9. a kind of preparation method of Pasting type optical diffusion according to any one of claim 1-8, its feature It is, methods described comprises the steps：(1) protective coating coating fluid is prepared；(2) protective coating is prepared：Step (1) is prepared into coating solution over the transparent substrate, is placed in 80 DEG C of -100 DEG C of bakings Case aging 2-8 hours；(3) viscous diffusion coating coating fluid is prepared；(4) viscous diffusion coating is prepared：Step (3) is configured into another side of the coating solution in transparent base, is placed in 40 DEG C -60 DEG C of oven ageing 48-72 hours.
- 10. a kind of application of Pasting type optical diffusion according to any one of claim 1-8, its feature exist In the Pasting type optical diffusion is pasted on the surface of other substrates by viscous diffusion coating.
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| CN108983336A (en) * | 2018-08-22 | 2018-12-11 | 张家港康得新光电材料有限公司 | A kind of lambert's body diffusion sheet and application |
| CN109283605A (en) * | 2018-12-11 | 2019-01-29 | 宁波激智科技股份有限公司 | A kind of optical diffusion and preparation method thereof of high luminance height masking |
| CN109375302A (en) * | 2018-12-11 | 2019-02-22 | 宁波激智科技股份有限公司 | A kind of diffusion barrier and its application |
| CN110111749A (en) * | 2019-06-18 | 2019-08-09 | 厦门天马微电子有限公司 | A kind of Liquid Crystal Display And Method For Driving |
| CN110703362A (en) * | 2019-10-14 | 2020-01-17 | 合肥乐凯科技产业有限公司 | High haze high-covering atomization film |
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| CN110111749A (en) * | 2019-06-18 | 2019-08-09 | 厦门天马微电子有限公司 | A kind of Liquid Crystal Display And Method For Driving |
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